CN102578930B - food processor with piston type sealing device - Google Patents

Abstract

The present invention relates to the food processor of a kind of band piston type sealing device.It mainly includes the food processor main body of the compositions such as reducing mechanism, motor, staving and control circuit board.Piston type sealing device is set in staving, between itself and inner wall of barrel for being slidably matched, slipper seal, it is possible in staving, the longitudinal axis along staving moves.This piston type sealing device includes piston main body, with or without sealing ring on it.With locking positioning device on piston type sealing device, a certain position in enabling piston type sealing device to be fixed on staving.The present invention can be according to the volume of actual foodstuff liquid, close foodstuff liquid level position in this piston type sealing device is shifted onto staving, discharge air sealed barrel simultaneously in staving, and stop staving outer air entrance in crushing process, can reduce, avoid foodstuff liquid by the oxidation in food processor crushing process, reduce nutritive loss, keep good taste and appearance color.

Description

Food processor with piston type sealing device

Technical field

The present invention relates to the food processor of a kind of band piston type sealing device.

Background technology

Food processor includes positive displacement food processor and the on-positive displacement food processor that can pulverize foodstuff.Volume Formula food processor includes that soy bean milk making machine, rice paste machine, fruit and vegetable juice machine, cooking machine, blender and other positive displacement pulverizing foodstuff are eaten Product datatron.On-positive displacement food processor includes handheld stirring machine, table type mixer, vertical mixer.Positive displacement food Its common ground of datatron is to have a staving holding foodstuff and crushing knife tool device, it be divided into again band heater (such as bean Pulp grinder, rice paste machine etc.) and without two classes of heater.On-positive displacement food processor itself does not hold the staving of foodstuff, It only has a motor driven comminution knife tool device, needs to stretch into other and is contained with in the container of foodstuff pulverizing foodstuff, is also classified into band Heater and without heater.

It is only simple that foodstuff is (as miscellaneous in meat, beans, grain rice without the positive displacement food processor of heater Grain, water fruits and vegetables, solid seasoning etc) to pulverize, this kind of ordinary practice is referred to as cooking machine, fruit juice mixer, blender etc.；Band heats The food processor of device is both foodstuff to have been pulverized, also with electrical heating (electrothermal tube, Electric radiant Heating Film, electromagnetic heater etc.) device To foodstuff heating, boiling, this kind of commonly referred to soy bean milk making machine, rice paste machine, fruit and vegerable machine etc..Novel has pulverizing and heating function dress concurrently Soy bean milk making machine, the rice paste machine put can also be by controlling setting and the selection of program: pulverize merely, heat merely, not only pulverize but also add The functions such as heat.

Food processor arranges position according to (crushing knife tool device) motor and is divided into: put on provided with motor at lower formula, motor Side-mounted three macrotaxonomies of formula, motor:

The staving of provided with motor at lower formula, crushing knife tool device etc. are provided in above motor, and it is subdivided into integral type and divides Body formula two kinds.Split type is exactly that motor is arranged in support, and staving (crushing knife tool device) is arranged on above support, staving and machine It it is dismountable Split type structure between Zuo.Integral type is exactly that support is integrated with staving, and staving can not disassemble from support.

The staving (on-positive displacement food processor is without staving) of motor overhead, crushing knife tool device are arranged under motor Side.

The side-mounted staving (on-positive displacement food processor is without staving) of motor, crushing knife tool device etc. are provided in motor Side.Motor shaft is horizontal or is vertically arranged, and stretches in staving directly or by transfer device.

They all refer to foodstuff crushing knife tool device.The effect one of crushing knife tool device is to pulverize foodstuff；Two be stirring, Mixing makes foodstuff overturn in container (staving), so that pulverizing more thorough.Pulverizing foodstuff is to be filled by driven by motor crushing knife tool Put rotation, make foodstuff pulverize, make foodstuff move simultaneously, reach fully to pulverize, mix purpose.But crushing process high speed rotates Crushing knife tool device can produce violent whirlpool in staving, in staving, the air of foodstuff ullage sucks and in bubble Shape is mixed in foodstuff liquid.Air owing to being mixed in foodstuff liquid is swiftly flowing, foodstuff liquid itself also at high-speed motion, two The strong relative motion of person cause mixing, rubbing action to small granular foodstuff (foodstuff from big block crushed for microgranule after, its Surface area increases thousands of times) especially water fruits and vegetables produce Oxidation strong, quick.The mixture of such as Fructus Mali pumilae and water In food processor crushed during, it is only necessary to 2～5 minutes, its foodstuff liquid (fruit juice) color just by pale yellow be oxidized to brown Color (is referred to as enzymatic browning in biology.Enzymatic browning is under conditions of aerobic, and phenolase phenol substance catalytic forms quinone and gathers The course of reaction of compound), mouthfeel is also deteriorated.And foodstuff liquid is in resting state, only foodstuff liquid surface contacts with non-moving air, It is the slowest to the oxidation of foodstuff liquid.

Presently commercially available positive displacement food processor, with lid, (head of motor overhead itself acts as on staving top The lid of staving), it there is the problem that 1, lid is not to seal；2, food processor when the overwhelming majority uses also Need not make a bucketful foodstuff liquid such as fruit juice (simultaneously as lid is not to seal, if be completely filled up, during crushing, stirring Wait foodstuff also can overflow), this has large quantity of air in not only making bucket and this air communicates with outside atmosphere.At on-positive displacement food Reason machine is then typically to stretch in other open containers pulverizing foodstuff, and foodstuff is directly exposed in air especially.Thus pulverizing Cheng Zhong, foodstuff liquid whirlpool can not only suck the air of the interior top of staving, also can suck the air outside staving further, to foodstuff liquid Produce the most significantly Oxidation.

In common food processor, the oxidation of foodstuff is divided into three links: before foodstuff is pulverized to, crushing process neutralizes Pulverize complete.Before foodstuff is pulverized to, (i.e. the normality of foodstuff) is big block object (the most whole Fructus Mali pumilae or Fructus Mali pumilae block), oxidation Being typically limited to only surface (within several hours) and because surface area is little, usual oxidation deterioration is the slowest.Complete (i.e. system pulverized by foodstuff Must be fruit juice) after, being placed on staving (or pouring in cup) is resting state, no longer carry out being stirred vigorously the most no longer with air Strong friction, so (within several hours) oxidation is only limitted to the fruit juice top layer of resting state, aoxidizes the most inconspicuous on the whole. Only in foodstuff crushing process, air bump contact that foodstuff liquid and (being inhaled into) are mixed therein and violent friction, Oxidation is the most prominent and strong, oxidation effectiveness when its oxidation effectiveness of 2～3 minutes is less than other two links 2～3 All significantly many.

In addition, the rising of foodstuff liquid temp is also the key factor of accelerated oxidation.But whether which kind of mode aoxidizes, its Premise is: foodstuff must contact with abundant oxygen, otherwise will not have oxidation.

Summary of the invention

Present invention aims to the deficiencies in the prior art, it is provided that the Food processing of a kind of band piston type sealing device Machine, uses piston type sealing device to serve as the movable sealing lid of staving, in being located at staving and be slidably matched with inner wall of barrel, slide Seal, move along staving longitudinal axis.User can be shifted this piston sealing device in staving onto according to the volume of actual foodstuff liquid Near foodstuff liquid level position, discharge air sealed barrel simultaneously in staving, in making staving, substantially there is no air or only minimal amount Air, and stop staving outer air (in crushing process) enter (in staving), it is possible to reduce, avoid foodstuff liquid by Food processing Oxidation in machine crushing process, reduces nutritive loss, keeps good taste and appearance color.

The food processor of a kind of band piston type sealing device that the present invention provides, mainly includes crushing knife tool device, electricity The food processor main body that machine, staving and control circuit board etc. are constituted, it is characterised in that also include: piston type is set in staving Sealing device, for being slidably matched between side wall surface and the inner wall of barrel of piston type sealing device, piston type sealing device can be In staving, the longitudinal axis along staving moves, and it is overall that piston type sealing device and food processor main body constitute food processor.

For being slidably matched between side wall surface and the inner wall of barrel of described piston type sealing device, preferably slide close simultaneously Envelope, to stop the entrance of staving outer air to greatest extent；But it also includes (side wall surface of piston type sealing device and inner wall of barrel Between) there is certain interval (such as 0.01～0.1 millimeter), i.e. do not fully seal.

Described piston type sealing device includes piston main body, is used for blocking staving cross section, and and inner wall of barrel Between for being slidably matched the component of (slipper seal preferably simultaneously).With or without sealing ring on described piston main body.

With locking positioning device on described piston type sealing device, so that piston type sealing device (main body) can be consolidated A certain position in staving.

Described locking positioning device is interference friction-type, expanding extruding formula, negative-pressure type, screw-type, guide tracked, liquid level location Formula or other piston type sealing device can be made arbitrarily to be locked at the machinery of inner wall of barrel.

Described interference friction-type: the cross section of piston type sealing device is more than inner wall of barrel cross section, produces by interference fit Raw frictional force make piston type sealing device be fixed on staving in a certain position.

Described expanding extruding formula: on piston type sealing device with can the machinery of expanding extruding inner wall of barrel, should Expanding extruding device (after being started by external force) expands outwardly in staving, and (directly or indirectly) extruding inner wall of barrel makes piston type close Seal apparatus is a certain position in being fixed on staving.

Described negative-pressure type: with manual exhauster on piston main body, by air in manual exhauster extraction staving, makes Producing negative pressure in staving, this negative pressure makes piston type sealing device closely be attached on foodstuff liquid level, due to foodstuff liquid level distance staving Inner bottom part has certain altitude, thus in reaching to make piston type sealing device be fixed on staving, a certain position acts on.

Described screw-type: have the screw thread matched between piston type sealing device side wall surface and inner wall of barrel, make piston type Sealing device longitudinally can move in staving.Helicitic texture lockable piston type sealing device own rests in staving Any position of wall.

Described guide tracked: to have the guide rail being mutually matched between piston type sealing device side wall surface and inner wall of barrel, make piston Formula sealing device longitudinally moves in staving, and is fixed on any position in staving.

Described liquid level location formula: piston type sealing device is in staving on liquid level, due in foodstuff liquid level distance staving Certain altitude (liquid is incompressible fluid) arranged at bottom, thus a certain position in reaching to make piston type sealing device be fixed on staving Put effect.

Liftable localization handspike under head (motor overhead) above or is installed on staving lid (provided with motor at lower formula) is logical Piston type sealing device is positioned at bucket by the distance crossed between localization handspike adjustment piston type sealing device and head or staving lid Internal any position.

Described locking positioning device is at least a kind of.

Described piston main body be plate shaped, dish type, cylindricality, tubular with the end (longitudinal section is U-shaped), internal for hollow but not Completely through cylindricality (such as longitudinal section is H type), spherical or other arbitrary shape.The cross section of piston main body is closed curve Shape, such as circle, ellipse, triangle, square, polygon or other arbitrary shape.

Described piston main body is (being e.g. made up of resilient sponge or silicone rubber) of rigidity or elasticity.

Described sealing ring is rigidity or elasticity；Sealing ring is fixing or is not fixedly installed on the sidewall of piston main body Face, top, bottom or be coated on outside piston main body, its effect is filled up between piston main body side wall surface and inner wall of barrel Gap, makes to seal between piston and inner wall of barrel tighter.Sealing ring is not have annular jaggy or carry jagged.Sealing ring is (as rigid plastics is constituted) of hard or resilient (in this way silicone rubber material constitute), soft (such as soft rubber structure Become).

Described sealing ring is circle, ellipse, triangle, square, polygon or other arbitrary shape.

The cross section of described sealing ring is the arbitrary shapes such as circular, square, c-type, L-type.The upstanding edge of such as L-type is located at work Plug main body side wall, the base of L is coated on the top of piston main body (or bottom).

Refer to for being slidably matched between side wall surface and the inner wall of barrel of described piston type sealing device: piston type sealing device Cross section be slightly larger than, be equal to or slightly less than cross section in staving.The cross section of piston type sealing device is slightly larger than, equal to staving Interior cross section, refers to that piston type sealing device or inner wall of barrel itself have in certain elasticity, piston type sealing device and staving Wall interference, be slidably matched simultaneously slipper seal；The cross section of piston type sealing device is slightly smaller than cross section in staving, refers to piston In having minim gap (such as 0.01～0.1 millimeter), piston type sealing device and staving between formula sealing device and inner wall of barrel Wall is slidably matched but is not (completely) slipper seal, although staving outer air thus can be caused to enter in staving, but (because air enters Enter amount the least) little to foodstuff liquid oxidation effect, still have substantially relative to the food processor not having piston type sealing device Minimizing Oxidation.

The staving of described food processor is (hold and pulverize foodstuff) bulk containers, and in staving, cross section (is perpendicular to indulge Axis) it is closed-curve shape, such as circle, ellipse, triangle, square, polygon or other arbitrary shape；In staving transversal There are three kinds of situations in face:

The shape of the cross section everywhere (being perpendicular to longitudinal axis) in staving is identical and area equation, i.e. inner wall of barrel are " straight Under upper straight ", prismatic.

Cross section (being perpendicular to longitudinal axis) in staving at least one section be that shape is identical and area equation (i.e. this section is " straight up and down ", uiform section), the cross section at other position is the most unequal.

The area of the cross section (being perpendicular to longitudinal axis) in staving is the most unequal.

In detail, staving is that the drum-shaped of " straight up and down ", side are the most barrel-shaped etc.；Or unequal section, as staving be truncated cone-shaped, Cone etc.；Or the cross section of inner wall of barrel some be uiform section, the latter half of such as round tank is unequal section, Top half is prismatic, i.e. this round tank starts up diameter from drum head and gradually expands, and arrives some height in staving Afterwards (such as 80 millimeters), then staving diameter up is exactly constant, no longer expands.

The shape of the cross section everywhere (being perpendicular to longitudinal axis Z) of staving is identical and area equation, piston type sealing device Side wall surface and inner wall of barrel are slidingly fitted, slipper seal.

The area of the cross section (being perpendicular to longitudinal axis) in staving is the most unequal, piston type sealing device transversal Face (shape and area) is consistent with staving certain cross section (shape and area)；Or piston type sealing device is originally as elasticity Body, it adapts to the change of cross section in staving, reaches sealing function.

Described inner wall of barrel has guide rail or guide groove, and piston type sealing device has the guide groove or guide rail matched, so that living Plug sealing device longitudinally moves in staving.

Being provided with spiral lifting structure in described staving, spiral lifting structure can drive piston type sealing device in staving Move along y direction.Described spiral lifting structure includes that on inner wall of barrel, outer wall corresponding with piston type sealing device is provided with The helicitic texture being mutually matched, enable piston type sealing device longitudinally to move in staving.Helicitic texture itself can Lock piston formula sealing device rests on any position of inner wall of barrel.

The described piston type sealing device without sealing ring, joins for slip between piston main body side wall surface and inner wall of barrel Close, slipper seal the most simultaneously.

The described piston type sealing device with sealing ring, for sliding between sealing ring and the inner wall of barrel on piston main body Coordinate, slipper seal the most simultaneously.

Be slidably matched for slight interference between side wall surface and the inner wall of barrel of described piston type sealing device, i.e. piston type seals The area of the cross section of device is slightly larger than the area of (being perpendicular to longitudinal axis) cross section, the side of piston type sealing device in staving Wall (regardless of whether with sealing ring) has elasticity, can be put into staving, and energy by this piston type sealing device after external force Enough mobile (along staving longitudinal axis) in staving.Owing to the cross-sectional area of piston type sealing device is (vertical slightly larger than in staving In longitudinal axis) cross section, so having sealing reliably.

Passage, passage is had to run through piston main body or piston packing on described piston type sealing device.

With valve or without valve on the passage of described passage；Described valve is two-way valve, check valve or other valves Door.

The circulating direction of described check valve is to flow in staving staving that (i.e. in staving, air can flow out, outside staving Air can not enter).In off position, fluid can not pass through two-way valve, can two-way circulate (the most permissible at opening fluid The other end is flowed to, it is also possible to rightabout circulates) from valve one end；Check valve (also referred to as check-valves) only allows fluid to flow from one end To the other end, and can not reverse flow.In staving when the whole staving of foodstuff liquid underfill, in staving, there are air, piston Formula sealing device puts into staving, be moved adjacent to foodstuff liquid level during, the air in staving is just discharged by passage.

It is additionally provided with manual exhauster on described piston type sealing device.

Passage, passage is had to be outside equipped with hand-operated pumping cylinder, hand-operated pumping cylinder and piston main body on described piston main body It is integrated or dismountable Split type structure.Hand-operated pumping cylinder (under external force) can extract the air in staving.Described Check valve (only allowing air to flow in pump bowl in staving) it is additionally provided with at passage.In described pump bowl, it is additionally provided with Air is allowed to flow to the check valve of ambient atmosphere in pump bowl.With reference to Chinese patent CN200720114892.3 (manual vacuum Pump bowl), the manual exhauster announced of CN201020233568.5 (a kind of hand-operated pumping cylinder).

Described manual exhauster is gasbag-type, and it has an air bag and bleeding point, can be through with hands extruding gasbag Bleeding point extraction air.

Also with batching hole on described piston main body, its effect is to put into foodstuff or water by batching hole in staving；Institute Stating the port lid that feeds intake on batching hole, its effect is closure batching hole, it is to avoid outside air enters in staving.On described batching hole lid Also has sealing ring, with more tight closure batching hole.Locking and fixing device is also had, such as in batching hole on described batching hole lid The helicitic texture being mutually matched is had, with fixed feeding area port lid between wall and batching hole cover outer wall.

The sidewall of described staving has faucet, to facilitate the foodstuff liquid released in staving.

The food processor of described band piston type sealing device is provided with motor at lower formula: staving is provided in above motor, electricity Machine is located in support, and motor shaft (with motor shaft on an axis, both are integrated or are coupled by shaft coupling cutter shaft) is from machine Stretch out in Zuo and extend in staving.Staving is interior, the upper-end part of driving of cutter shaft is provided with crushing knife tool device, and support with staving is The non-dismountable structure of integral type or support are dismountable Split type structure with staving, and piston type sealing device is arranged in staving, Be slidably matched between piston type sealing device and inner wall of barrel (preferably slipper seal) simultaneously, and piston type sealing device can be Longitudinally moving in staving, it is overall that piston type sealing device and food processor main body constitute food processor.

The food processor of described band piston type sealing device is motor overhead: the head of food processor is placed at bucket Internal, food processor (crushing knife tool device) motor is arranged in head, and cutter shaft stretches out and extend into (downwards) in head In staving.The lower end part of cutter shaft is provided with cutter (crushing knife tool device).The head of food processor itself constitutes piston type Be slidably matched between sealing device, and inner wall of barrel (slipper seal preferably simultaneously), it is possible to longitudinally moves in staving. Including:

Described head is made up of with lower cover fastening upper cover, and (side wall surface is externally provided with sealing ring or does not sets head lower cover side wall surface Sealing ring) and inner wall of barrel between be slidably matched (preferably slipper seal) simultaneously；Side wall surface (the side wall surface peripheral hardware of head upper cover Have sealing ring or do not set sealing ring) and inner wall of barrel between be slidably matched (preferably slipper seal) simultaneously；Head lower cover, upper cover Side wall surface (side wall surface is externally provided with sealing ring or does not set sealing ring) and be slidably matched (preferably simultaneously between inner wall of barrel simultaneously Slipper seal).

There is piston main body described head lateral wall, and (side wall surface is externally provided with sealing ring or does not set close the side wall surface of piston main body Seal) and inner wall of barrel between be slidably matched (preferably slipper seal) simultaneously.Head and piston (sealing) main body are integral type Non-dismountable structure or dismountable Split type structure.

Described head is the fuselage of hand-held positive displacement food processor, and this food processor also includes a staving, machine There is piston main body body lateral wall, the side wall surface (side wall surface is externally provided with sealing ring or does not set sealing ring) of piston main body and inner wall of barrel Between be slidably matched (preferably slipper seal) simultaneously.Fuselage and piston type sealing device are the non-dismountable structure of integral type or can The Split type structure of dismounting.Fuselage includes drive division (inside having motor) and mixing part (including cutter shaft and crushing knife tool device), Between its drive division and mixing part for the non-dismountable structure of integral type or dismountable Split type structure (motor shaft of drive division with stir Mix and couple with shaft coupling between the cutter shaft in portion).

The food processor of described band piston type sealing device is that motor is side-mounted: the staving of food processor is arranged on machine The side of seat, (crushing knife tool device device) motor of food processor is arranged in support, cutter shaft crosses out in support, And extend in staving.Staving is interior, the position, front end of cutter shaft is provided with cutter (crushing knife tool device).Staving is horizontal, lives Plug sealing device is arranged in staving, and piston type sealing device and inner wall of barrel fit tightly, are slidably matched, slipper seal, It can in staving transverse shifting.

Described food processor also includes electric heater unit, and electric heater unit is electric heating tube, chassis type electrical heating Device or other arbitrary form electric heater unit.

Described food processor also includes anti-overflow device, such as anti-flow electrode etc..

Described reducing mechanism includes that the food processor such as crushing knife tool formula, sound bistrique grinding formula is known and is pulverized by foodstuff Machinery.

Foodstuff liquid described in the present invention is the mixture of foodstuff (such as Semen Glycines) and water, or foodstuff and other liquid mixture.

Described food processor is positive displacement food processor (the trade name bean milk of the band heater put on motor Machine, rice paste machine etc.), positive displacement food processor (trade name cooking machine, the blender without heater put on motor Deng), the positive displacement food processor (trade name soy bean milk making machine, rice paste machine etc.) of band heater of provided with motor at lower, provided with motor at lower The positive displacement food processor without heater (trade name cooking machine, blender etc.), put on motor without heating The hand-held positive displacement food processor (trade name handheld stirring machine etc.) of device, the volume of band heater of motor side Formula food processor (trade name soy bean milk making machine, rice paste machine etc.), the positive displacement Food processing without heater of motor side Machine (trade name cooking machine, blender etc.).

The invention have the advantage that

One, the food processor of band piston type sealing device, is sealed staving by piston type sealing device, not only stops Staving extraneous air (containing about 20～the oxygen of 21% in naturalness air, lower with) enters in staving, and piston type is close Seal apparatus (longitudinally) can do lifting moving in staving, therefore can discharge bucket before foodstuff is pulverized to the most to greatest extent Interior air, with air contact, oxidation during reducing and avoiding foodstuff crushed, reduces enzymatic browning, reduces the battalion such as vitamin Support loss.

Two, piston type sealing device is with locking positioning device, it is to avoid in food processor work process, piston type is close Seal apparatus is mobile by vibrations (or the foodstuff liquid acutely rotated impacts), affects sealing effectiveness.

Three, with manual exhauster on piston type sealing device, the oxygen dissolved in water can be extracted out.Avoid to greatest extent The oxidation of foodstuff liquid (such as fruit juice) manufacturing process.This kind of structure also has the effect extending the fruit juice holding time.

Four, the present invention can regulate in a wide range, and user can be according to each fruit juice requirement, piston type Sealing device puts into staving and with at hand push to foodstuff liquid level, with air-out, prepares not oxidized high-quality fruit juice.

Accompanying drawing explanation

Fig. 1 is first embodiment of the invention structural representation.

Fig. 2 is second embodiment of the invention structural representation.

Fig. 3 is third embodiment of the invention structural representation.

Fig. 4 is bucket body structure longitudinal direction cut-away view of the present invention.

Fig. 5 is the first piston structure longitudinal direction cut-away view of the present invention.

Fig. 6 is the second piston structure longitudinal direction cut-away view of the present invention.

Fig. 7 is the third piston structure longitudinal direction cut-away view of the present invention.

Fig. 8 is piston structure top view described in Fig. 7.

Fig. 9 is the 4th kind of piston structure longitudinal direction cut-away view of the present invention.

Figure 10 is piston structure top view described in Fig. 9.

Figure 11 is the 5th kind of piston structure top view of the present invention.

Figure 12 is the C-C view of Figure 11.

Figure 13 is the D-D view of Figure 11.

Figure 14 is the 6th kind of piston structure longitudinal direction cut-away view of the present invention.

Figure 15 is piston structure top view described in Figure 14.

Figure 16 is the 7th kind of piston structure longitudinal direction cut-away view of the present invention.

Figure 17 is the 8th kind of piston structure longitudinal direction cut-away view of the present invention.

Figure 18 is four embodiment of the invention structural representation.

Figure 19 is fifth embodiment of the invention structural representation.

Detailed description of the invention

The present invention is expanded on further below in conjunction with embodiment.

As it can be seen, support (head) 1；Staving 2；Cutter shaft 3；Cutter 4；Piston type sealing device 5；Compression spring 6；Screw torsion 7；Screw torsion hole 70.

(staving 2) longitudinal axis Z；

(on head 1) upper cover 11；(on head 1) lower cover 12；

Piston main body 51；Central shaft 511；Central axis pin 511 '；Spud pile 512；Pressing plate 513；Plate hole 5130；Cannelure 514；Staving lid 515；Bung hole 5150；

(piston) seal groove 52；Sealing ring 522；Sealing ring thickening part 522 '；

Passage 53；Removable plug 533；Lock pin 533 '；Check valve 531；

Handle 54；Handle hole 540；Handle center hole 541；Arm pivot post hole 542；Handle grip head 543；Arm pivot post 544；

Batching hole 55；Feed intake port lid 555；

Pump bowl 8；Bleed piston 81；Air exhaust rod 82；Bleed handle 84；Check valve 85；Sealing gasket 86；Stop valve 89；

Dotted line 10.

Accompanying drawing eliminates parts unrelated to the invention, such as universal component motor, the control circuit of food processor Plate etc..

Foodstuff liquid is foodstuff (such as water fruits and vegetables) and water (or oil) mixture.Crushing knife tool device is only illustrated with cutter 4.

Piston type sealing device 5 is that the spare and accessory parts (including sealing ring 522 etc.) being main by piston main body 51 etc. collectively constitute (for coordinate with staving 2) sealing device general name.

Generally (crushing knife tool device) provided with motor at lower formula of food processor is referred to as support.Such food processor is divided into again Support and staving be (non-dismountable) integral structure and support and staving is (detachably) split type two kinds.

The referred to as head of (crushing knife tool device) motor overhead of food processor.The diameter of head was more as a child also referred to as For handle or fuselage, electric machine built-in is in handle (fuselage).

As it is shown in figure 1, first embodiment of the invention is provided with motor at lower formula food processor.

The staving 2 of food processor is arranged on support 1, and motor is (in Fig. 1 not for (the crushing knife tool device) of food processor Draw) it is arranged in support 1, cutter shaft 3 stretches out in support 1 and extend in staving 2.Staving 2 is interior, the upper-end part of driving of cutter shaft 3 sets It is equipped with cutter 4 (in Fig. 1, cutter 4 is only signal).

(level) of (being perpendicular to longitudinal axis) cross section of staving 2 is generally circular in shape, and the cross section everywhere of staving 2 Shape is identical and area equation (i.e. staving 2 inwall is straight up and down, and bung diameter is identical with bottom of the barrel diameter, and longitudinal section is Square).Staving 2 internal diameter can be 100 millimeters, (from drum head to bung) highly 200 millimeters in staving 2, and its total measurement (volume) is 1570 millis Rise.

Piston type sealing device 5 is circular plate (thickness can be 30 millimeters, external diameter 99.99 millimeters), and it is arranged on bucket In body 2, piston type sealing device 5 can be longitudinally that vertical direction moves (circular plate piston type sealing in staving 2 It is additionally provided with valve on device 5, sees the piston concrete structures such as Fig. 5, Fig. 6, Fig. 7 and describe).

Time food processor uses, first in staving 2, put into appropriate foodstuff liquid.Such as 200 grams of fruit with appropriate Water is put in staving 2 at about 100 height (about 785 milliliters) together, then with hands, piston type sealing device 5 is put into bucket In body 2 and be pushed into and be adjacent at foodstuff liquid level, so that air is all discharged in staving 2.Start food processor motor to rotate, Cutter 4 rotating shredder foodstuff, in crushing process, because substantially not having air, so it is not oxidized (or only to prepare fruit juice in staving 2 By remaining oxygen slight oxidation).

The position that arranges of piston type sealing device 5 cannot be below the top of cutter 4 in staving 2.The top of cutter 4 leads to Often distance staving 2 inner bottom part is 30～50 millimeters, and the position that arranges of corresponding piston type sealing device 5 can be at (distance staving 2 Inner bottom part) regulate in the range of about 50～170 millimeters, corresponding fruit juice volume is about 395～1330 milliliters.User can basis Actual fruit juice requirement, regulates in a wide range, piston type sealing device 5 is pushed at foodstuff liquid level, with row Go out air, it is to avoid fruit juice aoxidizes.

As in figure 2 it is shown, second embodiment of the invention is motor overhead food processor.

The head 1 of food processor is placed in staving 2, and motor is (in Fig. 2 not for food processor (crushing knife tool device) Draw) it is arranged in head 1, cutter shaft 3 stretches out in head 1 and extend in staving 2.The lower end part of cutter shaft 3 is provided with cutter 4。

There is piston type sealing device 5 head 1 lateral wall, and (side wall surface is externally provided with or not for the side wall surface of piston type sealing device 5 Be provided with sealing ring) and staving 2 inwall between be slidably matched, slipper seal.Head 1 and piston type sealing device 5 be integral type not Demountable structure or dismountable Split type structure.

(being perpendicular to longitudinal axis) cross section of staving 2 is square, and the shape of the cross section everywhere of staving 2 is identical and Area equation (i.e. staving 2 inwall is straight up and down, and bung, drum head cross section are all 80 × 80 millimeters), (from bucket in staving 2 The end, is to bung) highly 200 millimeters, its total measurement (volume) is 1280 milliliters.

Piston type sealing device 5 is square plate shape (disc thickness 40 millimeters), is 79.9 × 79.9 millimeters, user hands handle It puts into staving 2, and piston type sealing device 5 can longitudinally (vertical direction) movement in staving 2.

When use, first in staving 2, put into appropriate foodstuff liquid.Such as 200 grams of fruit are put into together with suitable quantity of water In staving 2 at about 100 height (about 640 milliliters), then piston type sealing device 5 is put into staving 2 and is pushed into patch It is tightened at foodstuff liquid level, so that air is all discharged in staving 2.Starting food processor motor to rotate, cutter 4 rotating shredder is eaten Material, in crushing process, because substantially there is no air in staving 2, so pulverize prepare fruit juice not oxidized (or only by remaining oxygen light Low-level oxidation).

Those skilled in the art of the present technique are appreciated that alternatively, outside the head 1 of described motor overhead food processor Footpath " carefully " (head 1 may not be circle) to the hands of people can hold time (such as external diameter 4～5 centimetres), on this head The formula food processor of putting just becomes hand-hold food datatron.Hand-hold food datatron majority the most do not wear staving 2 (be commonly called as into Hand-held on-positive displacement food processor), but also have and wear (after configuration staving 2, in fact becoming hand-held positive displacement and eat of staving 2 Product datatron).The food processor of band piston type sealing device of the present invention is in (hand-held positive displacement food processor) staving 2 The requirement of wall is: be slidingly fitted (slipper seal preferably simultaneously) with the piston type sealing device 5 on head 1, and piston type is close Seal apparatus 5 longitudinally can move in staving 2.

Alternatively, the head 1 of hand-held (positive displacement) food processor, (in Fig. 2) dotted line 10 is (interior with upper bit as drive division Have motor, Fig. 2 do not draw), (include cutter shaft 3 and cutter 4) with lower portion as mixing part, between its drive division and mixing part be Dismountable Split type structure, between motor shaft (not drawing in Fig. 2) and the cutter shaft 3 of mixing part of drive division with shaft coupling (in Fig. 2 not Draw) couple, drive cutter shaft 3 to rotate.This kind of demountable structure is also known hand-hold food datatron common structure.

As it is shown on figure 3, third embodiment of the invention is the side-mounted food processor of motor.

The staving 2 of food processor is arranged on the side of support 1, (crushing knife tool device) motor (Fig. 3 of food processor In do not draw) be arranged in support 1, cutter shaft 3 crosses out in support 1 and extend in staving 2.In staving 2, before cutter shaft 3 Position, end is provided with cutter 4.

Staving 2 is also circle for horizontal (being perpendicular to cutter shaft axis) cross section, and the cross section of staving 2 is phase everywhere Deng (i.e. staving 2 inwall is straight up and down, and bung diameter is identical with bottom of the barrel diameter), staving 2 internal diameter 100 millimeters, staving 2 Interior (from drum head to bung) length 200 millimeters, its total measurement (volume) is 1570 milliliters.

Piston type sealing device 5 is discoid (disc thickness 30 millimeters), and its side-walls is provided with elastic piston sealing ring (Fig. 3 does not draws.See piston concrete structure Fig. 5, Fig. 6 etc.), elastic piston sealing ring external diameter is slightly larger than (such as, external diameter is 101 Millimeter) internal diameter of staving 2, it is arranged in staving 2, and piston type sealing device 5 closely cooperates with staving 2 inwall, slipper seal, Make its can either in staving 2 transverse shifting, in also will not making horizontal staving 2, foodstuff liquid spills.

It is demountable structure between staving 2 and support 1.Staving 2 can be pulled down from support 1, in order to holds foodstuff liquid. The most again piston type sealing device 5 is put into staving 2 being pushed into be adjacent at foodstuff liquid level so that in staving 2 air all by Discharge.It is arranged on support 1 horizontal for staving 2 again.Start food processor motor to rotate, cutter 4 rotating shredder foodstuff, pulverize During, because substantially there is no air in staving 2, so it is not oxidized to pulverize prepared fruit juice.

As shown in Figure 4, bucket body structure longitudinal direction cut-away view of the present invention.

Z is staving 2 longitudinal axis.Staving 2 is H along Z-direction (from drum head to bung) total height (length), and it is by three sections of groups Become: H=h1+h2+h3.

(being perpendicular to longitudinal axis Z's) cross section of the staving 2 of h1 section for the most unequal (by bottom of the barrel up, Staving 2 cross section becomes big or diminishes.For starting up from staving 2 inner bottom part in Fig. 4, cross section gradually expands).

(being perpendicular to longitudinal axis Z's) shape of cross section everywhere of the staving 2 of h2 section is identical and area equation, i.e. h2 section Staving 2 is internal is " straight up and down ".In staving 2, (at h2 section) dotted line is that piston type sealing device 5 is illustrated.

(being perpendicular to longitudinal axis Z's) cross section of the staving 2 of h3 section also for the most unequal (topmost started from h2 toward On, staving 2 cross section becomes big or diminishes.In Fig. 4, this section of cross section gradually expands, and when arriving bung, cross section is maximum, also Be exactly bung be horn shape, to facilitate piston type sealing device 5 to put into staving 2).

It will be understood by those skilled in the art that in staving 2, h2 section is most useful for being slidably matched with piston type sealing device 5, sliding Movable sealing.

In the present invention, h1=0～1000 millimeters；H2=0～10000 millimeters；H3=0～1000 millimeters.

Wherein when h1=h3=0 millimeter, H=h2, i.e. staving 2 internal cross section is the most equal.

When h1=0 millimeter, h2+h3=H.Being shaped as of staving 2: bung position is variable cross-section, bung with lower portion is Uiform section.

When h2=0 millimeter, in staving 2, cross section is the most unequal everywhere, and the most only piston type sealing device 5 is elastic Body could be slidably matched with staving 2 inwall, seal.

When h3=0 millimeter, h1+h2=H.Being shaped as of staving 2: in staving 2 near drum head position be variable cross-section, h1 with Upper bit is uiform section.

Staving of the present invention is preferably: 0 ＜ h1≤100 millimeter；10 millimeters of ＜ h2≤500 millimeter；0 ＜ h1≤100 milli Rice.

The staving 2 of the present invention is applicable to any positive displacement food processor.

Fig. 5 is the first piston structure longitudinal direction cut-away view of the present invention.

Piston main body 51 is plate-like (circular discoid, square plate-like or other shape plate-like), and its side wall surface periphery has sealing Ring recess 52, also has sealing ring 522 at seal groove 52.Having the passage 53 run through on piston main body 51, the effect in this hole is: live Ventilating air time plug sealing device moves in staving 2.Therefore this bore dia less (such as diameter 1～5 millimeters).

Also having batching hole 55 on piston main body 51, the effect of batching hole 55 is that convenient supplementing is thrown during making foodstuff liquid Enter foodstuff, therefore this hole relatively big (such as diameter 30～50 millimeters).The demountable port lid 555 that feeds intake is also had on batching hole 55, Feeding intake between port lid 555 and batching hole 55 is interference fit, and the port lid 555 that feeds intake can close this after being arranged at batching hole 55 Batching hole 55.

Having arc-shaped handle 54 on piston main body 51, crossbeam bent body is hand-held for user, operation.

In addition, at passage 53, it is also provided with removable plug (not drawing in Fig. 5), to block passage 53.Or It is at passage 53, be provided with valve the most again, such as check valve (only allow an air flow to staving 2 in staving 2), double To valve (allowing air to two-way circulate when valve opening) or the valve of other form.

This kind of piston structure is to utilize sealing ring 522 and staving 2 inwall frictional force just can be fixed in staving 2, the closeest Seal 522 is double serves interference friction-type locking positioning device effect.

Fig. 6 is the second piston structure longitudinal direction cut-away view of the present invention.

Piston main body 51 is inverted " bottle cap " shape, is plate shaped bottom it, dish periphery upwards dig one section of height (with Increase the contact area of its side wall surface and staving 2 inwall).Sealing ring 522 arranges and is fixed on piston main body 51 side wall surface.Seal The effect of circle 522 is to make piston type sealing device 5 more closely and staving 2 inwall is slidably matched, slipper seal, sealing ring 522 Double serve interference friction-type locking positioning device effect.

Handle 54 is arranged on piston main body 51, for single shank shape, operation hand-held for user.

The passage 53 run through is had on piston main body 51.Passage 53 be shaped as " the cone that upper port is big, lower port is little Shape ", it is additionally provided with removable plug 533 at passage 53.Removable plug 533 is also the taper similar to passage 53 shape, with Closure passage 53 more closely.Removable plug 533 lower end has lock pin 533 ' (to have one between itself and the lower surface of piston main body 51 Set a distance so that removable plug 533 moves up and down, opening and closing of fault passage 53), lock pin 533 ' effect be to prevent removable plug 533 depart from piston main body 51.Passage 53 and removable plug 533 (together with lock pin 533 ') collectively form valve.When upwards pulling up When removable plug 533, the passage of passage 53 turns on, with ventilating air；In time being seated downwards removable plug 533, logical Pore 53 is closed, and stops air circulation.

Fig. 7 is the third piston structure longitudinal direction cut-away view of the present invention.

Fig. 8 is the top view of Fig. 7, and Fig. 7 is longitudinal cut-away view (i.e. A-A view) of (Fig. 8's).

For clearer this piston structure of explanation, increase concrete size with explanation.

The elastomer that whole piston type sealing device 5 manufactures for silicone rubber, for inverted " bottle cap " shape, is straight bottom it 150 millimeters of footpath disc, dish periphery (i.e. side wall surface) upwards digs one section of 30 height, and (elastic disc circumference is equivalent to Sealing ring 522), to increase the contact area of piston type sealing device 5 side wall surface and staving 2 inwall, make piston type sealing device 5 More closely and staving 2 inwall is slidably matched, slipper seal.Dish perimeter sides wall is double serves interference friction-type locking positioning dress Put effect.Dish periphery (after upwards digging one section of height) its most significant end again in dish (symmetrical) turn over into certain distance (see Fig. 7, Fig. 8) to form two symmetrical, long annular hand grips 54, between the side wall surface of handle 54 and piston type sealing device 5, there is long annular Handle hole 540 (being also symmetrical two).

There is batching hole 55 on the discoid bottom of piston type sealing device 5, batching hole 55 has (dismountable) batching hole Lid 555, is interference fit, sealing between the two.In this structure, the port lid 555 that feeds intake is additionally provided with passage 53, on passage 53 It is provided with removable plug 533.

When use, user inserts in two handle holes 540 with two fingers respectively, and two fingers are the most firmly (black arrow signal in Fig. 7) pulls handle 54, makes whole piston type sealing device 5 deform further and (is become volume from disc Curved shape), area diminish and between the inwall of staving 2 produce gap, it is simple to piston type sealing device 5 is put in staving 2 (pressing close to foodstuff liquid level) precalculated position (or taking out in staving 2).

It is provided with batching hole 55 so that foodstuff and water are added in midway.

Fig. 9 is the 4th kind of piston structure longitudinal direction cut-away view of the present invention (i.e. the B-B view of Figure 10).Figure 10 is to live described in Fig. 9 Plug structure top view.

Piston main body 51 constitutes discoid for hard material, and diameter 150 millimeters, disc thickness 5 millimeters, center has convex Rise, the central shaft 511 of highly 40 millimeters.Disc circumference side wall surface is fixedly installed elastic seal ring 522 (for example, silicone rubber Constitute).The height 30 millimeters of the elastic seal ring 522 of annular, internal diameter 150 millimeters, (with reference to Figure 10) is the most oriented internally upset (this thickening part 522 ' makes this local internal diameter of sealing ring 522 diminish in sealing ring thickening part 522 '.Such as this local thickeies 2 millimeters, This local internal diameter is made to become 146 millimeters).Handle 54 is oblong-shaped, length 149 millimeters, and there is handle center hole 541 at its center, Handle 54 is enclosed within central shaft 511 by this centre bore 541 that (central shaft 511 top is additionally provided with the center preventing handle 54 from coming off Pivot pin 511 ').Handle 54 (being turned by the hands of user) can be rotated around central shaft 511.

The handle 54 that length is 149 millimeters at sealing ring 522 internal rotating of internal diameter 150 millimeters to sealing ring thickening part 522 ' When place, it is 146 millimeters because sealing ring thickening part 522 ' internal diameter diminishes, causes two terminations of handle 54 to withstand sealing ring 522, And then make sealing ring 522 (this local) expand the most outward.Thus (if this piston type sealing device 5 is provided in staving 2 In) make together with the outer side surface of sealing ring 522 tightly withstands on staving 2 inwall, to play piston type sealing device 5 (at bucket In body 2) locking, positioning action (i.e. expanding extruding formula locking positioning device).Further rotate handle 54 (or round about Rotate) make two terminations of handle depart from sealing ring thickening part 522 ', it is possible to release this locking positioning effect.

Those skilled in the art are appreciated that described handle 54 can be three and with upper end；Sealing ring adds Thickness portion 522 ' can also be many places.

Figure 11 is the 5th kind of piston structure top view of the present invention；Figure 12 is the C-C view of Figure 11；Figure 13 is the D-D of Figure 11 View.

In order to clearly describe this kind of piston structure and coordinate in staving 2, applicable cases, Figure 11, Figure 12, Figure 13 are all decorated with The partial view of staving 2.

Piston main body 51 for hard material constitute discoid (perimeter sides wall or with piston packing 522, Figure 12, Figure 13 does not draws), diameter 150 millimeters, disc thickness 5 millimeters, disk has two symmetrical spud piles 512.

Two parallel arm pivot posts 544 (dotted line signal in Figure 11, Figure 13), arm pivot post 544 phase is had on spud pile 512 Certain distance, the two ends of each arm pivot post 544 is had to be separately fixed on two spud piles 512 between Hu.

Handle 54 is symmetrical two, and the shape of each is " L " type, and there is arm pivot post hole in the corner of its L 542, each L-type handle (by arm pivot post hole 542) is located on an arm pivot post 544, and two, left and right handle 54 is in " the back of the body Backrest " (see Figure 12) be symmetrical arranged.Handle 54 (under external force, seeing black arrow signal in Figure 12) is by arm pivot post hole 542 can turn an angle on arm pivot post 544.Compression spring 6 is had, its effect between two L-type handle 54 erection part It it is the erection part of top pressure handle 54.

The base of L-type handle 54 is handle grip head 543, and the leading section of handle grip head 543 is less times greater than piston main body 51 External diameter, so that its (under compression spring 6 acts on) can withstand the inwall of staving 2.The leading section of handle grip head 543 be arc with Staving 2 inwall curves (can make handle grip head 543 and staving 2 inner wall increasing add contact area, to increase reliability).

When use, user grasps the erection part of two handles 54, and the most firmly (squeeze pressure spring 6) makes hands Handle 54 rotates to an angle along arm pivot post 544, and thus, handle grip head 543 leading section is lifted up, (horizontal direction projection becomes Short) shrink.Piston main body 51 is put into staving 2, the erection part of release handle 54, (under compression spring 6 acts on) handle card 543 decline, expansion (horizontal direction projection is elongated), block main staving 2 inwall, thus fix piston main body 51 in staving 2 Position.This kind of locking positioning device belongs to expanding extruding formula locking positioning device.

Figure 14 is the 6th kind of piston structure longitudinal direction cut-away view of the present invention (i.e. the E-E view of Figure 15).

Figure 15 is piston structure top view described in Figure 14.

In order to clearly describe this kind of piston structure and coordinate in staving 2, applicable cases, Figure 14, Figure 15 are all decorated with staving 2 Partial view.

In the present embodiment, the cross section of staving 2 is square, and the shape of corresponding piston main body 51 is also square plate shape.

Piston main body 51 be hard material constitute be inverted " Sequare-bottle cap shape ", peripheral sidewalls towards on flange, in making Between position in " groove " shape, there is the central shaft 511 raised up at center.

Pressing plate 513 flat shape is identical with piston main body 51, and there is plate hole 5130 at pressing plate 513 center.Pressing plate 513 is (longitudinally Cross section) it is projection shape (as shown in figure 14), its position (cross section) protruded is slightly smaller than " groove " in piston main body 51.Pressing plate 513 are pressed on piston main body 51 by plate hole 5130, and the boss on pressing plate 513 stretches in " groove " in piston main body 51.Pressure Sealing ring 522, sealing ring 522 is had to be enclosed within the boss of pressing plate 513 between plate 513 and piston main body 51.

Screw on torsion 7 centrally disposed axles 511, screw and have, between torsion 7 and central shaft 511, the helicitic texture cooperated, Rotation screws torsion and 7 pressing plate 513 can be pressed on piston main body 51, so make sealing ring 522 crimp, expand outwardly, Hold out against staving 2 inwall.Playing as piston main body 51 positioning action, this kind of locking positioning device belongs to expanding extruding formula locking positioning Device.

Reversely unclamp screw torsion 7 make sealing ring 522 pressure experienced release, restore to the original state, it is possible to release piston main body 51 fixing, the location in staving 2.

Figure 16 is the 7th kind of piston structure longitudinal direction cut-away view of the present invention.

Piston main body 51 is that (such as piston main body 51 is the sponge by closed pore or elastic silicone rubber structure to cylindrical elastomeric Become, external diameter 102 millimeters), it is arranged in cylindrical shape staving 2, and external diameter is slightly larger than staving 2 internal diameter (internal diameter 100 millimeters).User With hands, piston main body 51 is pushed the precalculated position in staving 2 by force.Because piston main body 51 external diameter is more slightly larger than staving 2 internal diameter, because of This can make staving 2 close and piston main body 51 can be made self to be fixed on a certain position (to belong to interference friction-type locking positioning dress Put).

Figure 17 is the 8th kind of piston structure longitudinal direction cut-away view of the present invention.

Piston main body 51 is " bottle cap " shape, and its inner top (i.e. lower surface) upwards arc (convex) rises, and is beneficial in staving 2 Air accumulation, discharge.Sealing ring 522 arranges and is fixed on piston main body 51 perimeter sides wall.

There is the cannelure 514 of projection at the center, upper surface of piston main body 51.In cannelure 514, pass through on piston main body 51 The passage 53 (passage 53 is not drawn in fig. 17) worn, check valve 531 is arranged at this passage 53, and its effect is: only Air is allowed to flow to staving 2 in staving 2, and can not reverse flow.

A passage run through 53 (being the most also not drawn into) is also had, at this outside cannelure 514, on piston main body 51 Being additionally provided with stop valve 89, this valve action is: time (manually) opens valve, makes staving 2 extraneous air enter staving 2 internal, with Release (being caused by manual exhauster) negative pressure, vacuum in staving 2.

It is additionally provided with manual exhauster on piston main body 51.Its concrete structure is: on piston main body 51, in cannelure 514 Cylindrical shape pump bowl 8, its external diameter is had to match with cannelure 514 internal diameter.Pump bowl 8 leading section is stretched in cannelure 514, bleeds Cylinder has, between 8 outer walls, cannelure 514 inwall, the helicitic texture being mutually matched.Helicitic texture can be passed through in the leading section of pump bowl 8 It is fixed in cannelure 514.Sealing gasket 86 is also had between (in cannelure 514) pump bowl 8 front end and piston main body 51 upper surface (effect is the joint portion gas leakage preventing pump bowl 8 with cannelure 514.In order to distinguish with the sealing ring 522 on piston main body 51 Open, therefore named sealing gasket 86 at this).Bleeding in pump bowl 8 piston 81, air exhaust rod 82 is arranged at piston 81 top of bleeding.Bleed The top of bar 82 is handle 84 of bleeding.

Having arc-shaped handle 54 on piston main body 51, the crossbeam bent body at top is hand-held for user, operation.They according to Shape shown in Figure 17 and structure collectively form handle 54, and (special instruction, even without handle 54, it is also possible to realize in staving 2 Air extraction.Handle 54 effect is only used to use more convenient).

Pump bowl 8 is interior, sidewall position on the lower also has another check valve 85, and the circulating direction of this valve is: only allow air Flowing in pump bowl 8, and can not reversely flow into.When push down on bleed piston 81 time, the air in pump bowl 8 is by list It is discharged to outside to valve 85.

(with reference to Fig. 1) when use, piston main body 51 is put into staving 2, the sealing ring 522 on piston main body 51 and bucket Body 2 inwall is interference, be slidably matched, slipper seal.Grasp handle 54, handle 84 of bleeding, pull up (as in Figure 17 to Direction shown in upward arrow.Figure 17 is the most also decorated with downward arrow, is illustrated as back and forth bleeding) handle 84 of bleeding, drive is bled Piston 81 moves upward, and produces negative pressure in making pump bowl 8, and then makes air in staving 2 (include in staving 2 in foodstuff liquid Dissolved oxygen) it is drawn in pump bowl 8；Handle 84 of bleeding, the piston 81 that makes to bleed is promoted to move downward again, then the sky in pump bowl 8 Gas is just discharged by check valve 85.Repeat this process, make the air in staving 2 be drawn out of completely, it is ensured that the crushed process of foodstuff liquid In to greatest extent avoid oxidation.After air is drawn out of, producing negative pressure in staving 2, this negative pressure makes piston type sealing device closely paste On foodstuff liquid level (liquid is incompressible fluid), owing to foodstuff liquid level distance staving inner bottom part has certain altitude, thus reach A certain position effect in being fixed on staving to making piston type sealing device, this is negative-pressure type locking positioning device.

After complete, the foodstuff liquid of bleeding is pulverized to, opens stop valve 89, make staving 2 extraneous air enter, release staving 2 Interior negative pressure state.The most just can take out piston main body 51 further, take out the foodstuff liquid (such as fruit juice) made.This structure excellent Select and be: the dissolved oxygen in foodstuff liquid is drawn out of beyond staving 2 the most together, stop Oxidation best.

Figure 18 is four embodiment of the invention structural representation.

The head 1 of food processor is placed in staving 2, and motor is (in Figure 18 not for food processor (crushing knife tool device) Draw) it is arranged in head 1, cutter shaft 3 stretches out in head 1 and extend in staving 2.The lower end part of cutter shaft 3 is provided with cutter 4。

Head 1 fastened with lower cover 12 by upper cover 11 and constitute (in Figure 18 more than dotted line for below upper cover 11, dotted line for lower cover 12, dotted line is for fastening intersection signal), head lower cover 11, upper cover 12 side wall surface simultaneously and and staving 2 inwall between slide and join Conjunction, slipper seal.Head 1 itself constitutes piston type sealing device, it is possible to longitudinally move in staving 2.

When use, first in staving 2, put into appropriate foodstuff liquid.Again head 1 is put into staving 2 being pushed into be adjacent to At foodstuff liquid level, so that air is all discharged in staving 2.Starting food processor motor to rotate, cutter 4 rotating shredder is eaten Material, in crushing process, because substantially there is no air in staving 2, so pulverize prepare fruit juice not oxidized (or only by remaining oxygen light Low-level oxidation).In the present embodiment, the piston type sealing device that head 1 is constituted, in staving 2, is in staving on foodstuff liquid level, by A certain altitude is had in foodstuff liquid level distance staving inner bottom part, thus a certain position in reaching to make piston type sealing device be fixed on staving Putting effect, this positions formula locking positioning device for liquid level.

Figure 19 is fifth embodiment of the invention structural representation.

The staving 2 of food processor is arranged on support 1, and (crushing knife tool device) motor of food processor is (in Figure 19 Do not draw) it is arranged in support 1, cutter shaft 3 stretches out in support 1 and extend in staving 2.Interior, the upper-end part of driving of cutter shaft 3 of staving 2 It is provided with cutter 4 (in Figure 19, cutter 4 is only signal).

(level) of (being perpendicular to longitudinal axis) cross section of staving 2 is generally circular in shape, and the cross section everywhere of staving 2 Shape is identical and area equation (i.e. staving 2 inwall is straight up and down, and bung diameter is identical with bottom of the barrel diameter, and longitudinal section is Square).Staving 2 internal diameter can be 100 millimeters, (from drum head to bung) highly 200 millimeters in staving 2, and its total measurement (volume) is 1570 millis Rise.

Piston main body 51 constitutes circular plate (thickness can be 30 millimeters, external diameter 99.99 millimeters), center for hard material Having the central shaft 511 raised up, it is arranged in staving 2, and piston main body 51 can be longitudinally Vertical Square in staving 2 To movement (being additionally provided with valve on circular plate piston main body 51, see the piston concrete structures such as Fig. 5, Fig. 6 and describe).

Staving 2 upper edge has staving lid 515, staving lid 515 center to have bung hole 5150, the central shaft of piston main body 51 511 are upward through bung hole 5150.Screw and (screw torsion 7 centers and screw torsion hole 70) on torsion 7 centrally disposed axles 511, screw Turn round and have, between inwall and central shaft 511 outer wall in hole 70, the helicitic texture cooperated, screw torsion 7 and can make central shaft 511 move up and down, thus the effect both playing (along staving 2 longitudinal axis) mobile piston main body 51 also functions to as piston main body 51 Positioning action, this belongs to the one of screw-type locking positioning device, and (main distinction of the present embodiment and embodiment 1 is that locking Positioner is different).

Time food processor uses, first in staving 2, put into appropriate foodstuff liquid.Such as 200 grams of fruit with appropriate Water is put in staving 2 at about 100 height (about 785 milliliters) together, then with hands, piston main body 51 is put into staving 2 Interior, rotation screws torsion 7 makes piston main body 51 be adjacent at foodstuff liquid level, so that air is all discharged in staving 2.Start at food The dynamo-electric machine of reason rotates, cutter 4 rotating shredder foodstuff, in crushing process, because substantially not having air in staving 2, so preparing fruit juice Not oxidized (or only by remaining oxygen slight oxidation).

It will be understood by those skilled in the art that central shaft 511 is i.e. equivalent to liftable localization handspike, staving lid 515 sets At the position, upper edge of staving 2, it is all standing staving 2 upper edge or not exclusively covers that (even major part does not covers, and is only one Support, for supporting the work coordinating central shaft 511, screwing torsion 7).

Claims (12)

1. a food processor for band piston type sealing device, mainly includes reducing mechanism, motor, staving and control circuit Plate, it is characterised in that: also include: piston type sealing device is set in staving, the side wall surface of piston type sealing device and staving For being slidably matched between inwall, along staving, longitudinal axis moves；Described piston type sealing device includes piston main body, is used for sealing Block staving cross section.

Food processor the most according to claim 1, it is characterised in that: described piston main body, with sealing ring, seals Circle is arranged on the side wall surface of piston main body, top, bottom or is coated on outside piston main body, makes piston type sealing device and bucket Seal tight between internal wall；Described piston main body and sealing ring are rigidity or elasticity.

Food processor the most according to claim 2, it is characterised in that: the side wall surface of described piston type sealing device with Between inner wall of barrel for being slidably matched, slipper seal, described piston type sealing device has passage, passage run through piston master Body or piston packing.

Food processor the most according to claim 3, it is characterised in that: with valve or hands on the passage of described passage Dynamic air extractor.

Food processor the most according to claim 1 and 2, it is characterised in that: described piston main body be plate shaped, dish type, Cylindricality, tubular with the end or spherical；The cross section of piston main body is closed-curve shape.

Food processor the most according to claim 5, it is characterised in that: described closed-curve shape includes: circular, oval Shape or polygon.

Food processor the most according to claim 1 and 2, it is characterised in that: there is lock on described piston type sealing device Clamping and positioning device, a certain position in piston type sealing device main body is fixed on staving.

Food processor the most according to claim 1 and 2, it is characterised in that: described staving is bulk containers, in staving Cross section is closed-curve shape, and in staving, cross section is selected from following one:

1) shape of the cross section everywhere in staving is identical and area equation, i.e. inner wall of barrel are " straight up and down " uiform sections；

2) cross section in staving at least one section be that shape is identical and area equation, the cross section at other position is the most unequal；

3) area of the cross section in staving is the most unequal.

Food processor the most according to claim 8, it is characterised in that: described closed-curve shape includes: circular, oval Shape or polygon.

Food processor the most according to claim 1 and 2, it is characterised in that: there is batching hole on described piston main body, throw Material Kong Shangyou feeds intake port lid.

The food processor of the band piston type sealing device described in 11. 1 kinds of claim 1 or 2, it is characterised in that: it is to be selected from One of following manner:

1) provided with motor at lower formula: staving is arranged on above motor, motor is located in support, and support and staving are that integral type is non-dismountable Structure or support and staving are dismountable Split type structure, and piston type sealing device is arranged in staving, itself and inner wall of barrel it Between be slidably matched, slipper seal, it is possible to be axially moveable in staving, with food processor main body constitute food processor whole Body；

2) motor overhead: head is placed in staving, motor is arranged in head, and cutter shaft extends downwardly from head and stretches Enter in staving；The lower end part of cutter shaft is provided with reducing mechanism, and head itself constitutes piston type sealing device, with inner wall of barrel Between be slidably matched, slipper seal, it is possible to be axially moveable in staving, including:

Described head is fastened by upper cover and lower cover and constitutes, head lower cover side wall surface and and inner wall of barrel between be slidably matched, slide Seal；Be slidably matched between side wall surface and the inner wall of barrel of head upper cover, slipper seal；Head lower cover, upper cover side wall surface with Be slidably matched between Shi Yuyu inner wall of barrel, slipper seal；

There is piston main body described head lateral wall, is slidably matched, slipper seal between side wall surface and the inner wall of barrel of piston main body； Head and piston type sealing device are the non-dismountable structure of integral type or dismountable Split type structure；

3) motor is side-mounted: staving is arranged on the side of support, and motor is arranged in support, cutter shaft crosses out in support, And extend in staving；Staving is interior, the position, front end of cutter shaft is provided with reducing mechanism, and staving is horizontal, piston type sealing device Being arranged in staving, piston type sealing device and inner wall of barrel fit tightly, are slidably matched, slipper seal, and it can be at staving Interior transverse shifting.

The food processor of 12. band piston type sealing devices according to claim 1 and 2, it is characterised in that: described food Product datatron is the volume without heater put on the positive displacement food processor of the band heater put on motor, motor Formula food processor, the positive displacement food processor of band heater of provided with motor at lower, provided with motor at lower without heater The hand-held positive displacement food processor without heater, the band of motor side put on positive displacement food processor, motor add The positive displacement food processor of thermal or the positive displacement food processor without heater of motor side.