CN102578930A

CN102578930A - Food processor with piston type sealing device

Info

Publication number: CN102578930A
Application number: CN2012100527612A
Authority: CN
Inventors: 王晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-02
Filing date: 2012-03-02
Publication date: 2012-07-18
Anticipated expiration: 2032-03-02
Also published as: CN102578930B

Abstract

The invention relates to a food processor with a piston type sealing device. The food processor comprises a main food processor body consisting of a smashing device, a motor, a barrel body, a control circuit board and the like. A piston type sealing device is arranged in the barrel body, is in sliding fit or sliding seal with the inner wall of the barrel body, and can move along the longitudinal axis in the barrel body. The piston type sealing device comprises a main piston body which is provided with or not provided with a sealing ring, and is provided with a locking-positioning device, so as to be fixed in one position in the barrel body. In the food processor of the invention, according to the volume of the practical foodstuff liquid, the piston type sealing device is pushed to a position close to the foodstuff liquid level in the barrel body, air in the barrel body is discharged, simultaneously, the barrel body is sealed, air outside the barrel body is prevented from entering in the smashing process, the possibility of oxidization of foodstuff liquid processed by the food processor in the smashing process can be reduced and avoided, the nutrition loss is reduced, and the good mouthfeel and appearance color are kept.

Description

The food processor of band piston type sealing device

Technical field

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

Background technology

Food processor comprises positive displacement food processor and the on-positive displacement food processor that can pulverize foodstuff.The positive displacement food processor comprises the positive displacement food processor of soy bean milk making machine, rice paste machine, Juice machine, cooking machine, mixer and other pulverizing foodstuff.The on-positive displacement food processor comprises handheld stirring machine, desk-top mixer, vertical mixer.Its common ground of positive displacement food processor is that a staving and a crushing knife tool device that holds foodstuff is arranged, and it is divided into (like soy bean milk making machine, the rice paste machine etc.) of band heater again and not with two types of heater.Itself does not hold the staving of foodstuff the on-positive displacement food processor, and it only has a motor driven comminution knife tool device, need stretch in other container that is contained with foodstuff and pulverize foodstuff, also be divided into the band heater with not with heater.

The positive displacement food processor with heater only is not simple pulverizes foodstuff (like meat, beans, five cereals, fruit, vegetables, solid seasoning and so on), and this type ordinary practice is called cooking machine, fruit juice mixer, mixer etc.; The food processor of band heater is both to pulverize foodstuff, also has electrical heating (electrothermal tube, Electric radiant Heating Film, electromagnetic heater etc.) device to foodstuff heating, boiling, and this class is commonly referred to soy bean milk making machine, rice paste machine, fruits and vegetables machine etc.Novel have concurrently pulverize with the soy bean milk making machine of heating function device, rice paste machine can also be through the setting and the selection of control program: function such as pulverize, heat merely, not only pulverize but also heat merely.

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

The staving of provided with motor at lower formula, crushing knife tool device etc. are arranged on above the motor, and it is subdivided into integral type and split type two kinds again.Split type is exactly that motor is arranged in the support, and staving (crushing knife tool device) is arranged on the support top, is dismountable minute body structure between staving and the support.Integral type be exactly support and staving be one, staving can not disassemble from support.

The staving of motor overhead (the on-positive displacement food processor does not have staving), crushing knife tool device are arranged on the motor below.

The side-mounted staving (the on-positive displacement food processor does not have staving) of motor, crushing knife tool device etc. are arranged on a side of motor.Horizontal or perpendicular the putting of motor shaft directly or through transfer device stretched in the staving.

They all relate to foodstuff crushing knife tool device.The effect one of crushing knife tool device is to pulverize foodstuff; The 2nd, stirring, mixing are overturn foodstuff in container (staving), so that pulverize more thorough.Pulverizing foodstuff is through the rotation of driven by motor crushing knife tool device, and foodstuff is pulverized, and makes the foodstuff motion simultaneously, reaches abundant pulverizing, purpose of mixing.But the crushing knife tool device of crushing process high speed rotation can produce violent whirlpool in staving, sucks the air in the staving, above the foodstuff liquid level and be air bubble-shaped to be mixed in the foodstuff liquid.Because the air of sneaking in the foodstuff liquid is swiftly flowing; Foodstuff liquid itself is also at high-speed motion; Both strong relative motions cause mixing, rubbing action to small granular foodstuff (foodstuff is from big block the pulverizing to behind the particulate, and its surface area increases thousands of times) especially fruit, vegetables produce strongly, oxidation fast.For example the mixture of apple and water by in the crushing process, only needs 2～5 minutes in food processor, and its foodstuff liquid (fruit juice) color relation (is called enzymatic browning by the pale yellow brown that is oxidized 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), mouthfeel is variation also.And foodstuff liquid only is that foodstuff liquid surface contacts with non-moving air in inactive state, and its oxidation to foodstuff liquid is just very slow.

Present commercially available positive displacement food processor, staving top has lid (head of motor overhead itself serves as the lid of staving), and the problem of its existence is: 1, lid is not sealing; 2, food processor need not made bucketful foodstuff liquid such as fruit juice (simultaneously because lid does not seal yet when the overwhelming majority uses; If fill fully; Foodstuff also can overflow when pulverize stirring), this not only makes has a large amount of air and this air communicates with outside atmosphere in the bucket.The on-positive displacement food processor then normally stretches in other open containers and pulverizes foodstuff, and foodstuff is directly exposed in the air especially.In crushing process, foodstuff liquid whirlpool can not only suck the air of top in the staving thus, also can further suck the outer air of staving, and foodstuff liquid is produced fast significantly oxidation.

The oxidation of foodstuff is divided into three links in the common food processor: before foodstuff was pulverized, in the crushing process and pulverizing finish.(being the normality of foodstuff) was big block object (a for example whole apple or apple piece) before foodstuff was pulverized, and oxidation generally only limits to surface (within the several hrs) and because of surface area is little, oxidation deterioration is very slow usually.Foodstuff is pulverized after finish (promptly make and be fruit juice); Being placed on staving (or pouring in the cup) is inactive state; No longer carry out vigorous stirring also no longer with the air strong friction, so (within the several hrs) oxidation only limits to the fruit juice top layer of inactive state, oxidation is also not obvious on the whole.Only in the foodstuff crushing process; Foodstuff liquid contacts and violent friction with the air large tracts of land that (being inhaled into) is blended in wherein; Oxidation is the most outstanding and strong, and its oxidation effectiveness of 2～3 minutes is all significantly more than 2～3 hours oxidation effectiveness of other two links.

In addition, the rising of foodstuff liquid temp also is the key factor of accelerated oxidation.No matter but which kind of mode oxidation, its prerequisite is: foodstuff must contact with abundant oxygen, otherwise does not have oxidation.

Summary of the invention

The objective of the invention is to deficiency to prior art; A kind of food processor with the piston type sealing device is provided; Adopt the piston type sealing device to serve as the movable sealing lid of staving, be located in the staving and with the staving inwall be slidingly matched, slipper seal, move along the staving longitudinal axis.The user can be according to the volume of actual foodstuff liquid; Shift this piston sealing device in the staving onto near the foodstuff liquid level position, discharge that air seals staving simultaneously in the staving, making does not have air basically or has only the very small amount air in the staving; And stop staving outer air (in crushing process) and get into (in the staving); Can reduce, avoid foodstuff liquid by the oxidation in the food processor crushing process, reduce nutritive loss, keep good taste and appearance color.

A kind of food processor provided by the invention with the piston type sealing device; Mainly comprise the food processor main body that crushing knife tool device, motor, staving and control circuit board etc. constitute; It is characterized in that also comprising: the piston type sealing device is set in staving; For being slidingly matched, the piston type sealing device can move by the longitudinal axis along staving in staving between the side wall surface of piston type sealing device and the staving inwall, and it is whole that piston type sealing device and food processor main body constitute food processor.

For being slidingly matched, preferably slipper seal simultaneously gets into to stop the staving outer air to greatest extent between the side wall surface of said piston type sealing device and the staving inwall; But it comprises that also (between the side wall surface of piston type sealing device and the staving inwall) has certain interval (for example 0.01～0.1 millimeter), i.e. not sealing fully.

Described piston type sealing device comprises piston main body, is used to block the staving cross section, and and the staving inwall between be the member of be slidingly matched (preferably simultaneously slipper seal).Have or do not have sealing ring on the described piston main body.

Piston type sealing device (main body) has the locking positioning device on the described piston type sealing device, so that can be fixed in a certain position in the staving.

Said locking positioning device is that interference friction-type, expansion squash type, suction type, screw-type, guide tracked, liquid level locate mode or other can make the piston type sealing device be locked at the mechanical device of staving inwall arbitrarily.

Said interference friction-type: the cross section of piston type sealing device is greater than the staving cross section of inboard wall, and the frictional force of leaning on interference fit to produce makes the piston type sealing device be fixed in a certain position in the staving.

Said expansion squash type: have the mechanical device that to expand extruding staving inwall on the piston type sealing device; This expansion pressurizing unit (receiving external force to start the back) expands outwardly in staving, and (directly or indirectly) extruding staving inwall makes the piston type sealing device be fixed in a certain position in the staving.

Said suction type: have manual exhauster on the piston main body; The moving air extractor of armrest extracts air in the staving; Make and produce negative pressure in the staving; This negative pressure closely is attached on the foodstuff liquid level piston type sealing device, because the foodstuff liquid level has certain altitude apart from the staving inner bottom part, makes the piston type sealing device be fixed on a certain position effect in the staving thereby reach.

Said screw-type: between piston type sealing device side wall surface and the staving inwall screw thread that is complementary is arranged, the piston type sealing device can be moved along longitudinal axis in staving.The lockable piston type of helicitic texture sealing device own rests on arbitrary position of staving inwall.

Said guide tracked: as the guide rail of mutual coupling to be arranged between piston type sealing device side wall surface and the staving inwall, the piston type sealing device is moved along longitudinal axis in staving, and be fixed on arbitrary position in the staving.

Said liquid level locate mode: the piston type sealing device is on the interior liquid level of staving, because the foodstuff liquid level has certain altitude (liquid is incompressible fluid) apart from the staving inner bottom part, makes the piston type sealing device be fixed on a certain position effect in the staving thereby reach.

Head (motor overhead) go up or staving lid (provided with motor at lower formula) on install liftable localization handspike down, the distance between covering through localization handspike adjustment piston type sealing device and head or staving is positioned at arbitrary position in the staving with the piston type sealing device.

Said locking positioning device be have at least a kind of.

Said piston main body is plate shaped, dish type, cylindricality, the tubular (longitudinal section is the U type) that the end is arranged, inner for hollow but the cylindricality (for example the longitudinal section is the H type) that does not connect fully, spherical or other arbitrary shape.The cross section of piston main body is a closed-curve shape, like circle, ellipse, triangle, square, polygon or other arbitrary shape.

Said piston main body is (for example being to be made up of resilient sponge or silicon rubber) rigidity or flexible.

Said sealing ring is rigidity or flexible; Sealing ring is fixing or is not fixedly installed on side wall surface, top, the bottom of piston main body or is coated on the piston main body outside that its effect is the slit of filling up between piston main body side wall surface and the staving inwall, make seal between piston and the staving inwall tighter.Sealing ring is not have the annular of breach or have breach.Sealing ring is hard (constituting like rigid plastics) or resilient (the silicon rubber material constitutes in this way), soft (constituting like soft rubber).

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

The cross section of said sealing ring is arbitrary shapes such as circular, square, C type, L type.For example the upstanding edge of L type is located at the piston main body side wall surface, and the base of L is coated on the top of piston main body (or bottom).

Be meant for being slidingly matched between the side wall surface of said piston type sealing device and the staving inwall: the cross section of piston type sealing device is a bit larger tham, equals or is slightly smaller than cross section in the staving.The cross section of piston type sealing device is a bit larger tham, equals cross section in the staving, is meant that piston type sealing device or staving inwall itself have certain elasticity, and piston type sealing device and the interference of staving inwall, the while slipper seal is slidingly matched; The cross section of piston type sealing device is slightly smaller than cross section in the staving; Be meant minim gap (for example 0.01～0.1 millimeter) is arranged between piston type sealing device and the staving inwall; Piston type sealing device and staving inwall are slidingly matched but are not (fully) slipper seals; Though can cause the staving outer air to get in the staving thus, and (because of the air inlet very little) to foodstuff liquid oxidation effect seldom, still have tangible minimizing oxidation with respect to the food processor that does not have the piston type sealing device.

The staving of said food processor is (holding and pulverize foodstuff) bulk containers, and cross section (perpendicular to longitudinal axis) is a closed-curve shape in the staving, like circle, ellipse, triangle, square, polygon or other arbitrary shape; Cross section has three kinds of situation in the staving:

Identical and the area of the shape of the cross section everywhere (perpendicular to longitudinal axis) in the staving equates, promptly the staving inwall is " straight up and down ", prismatic.

Cross section (perpendicular to longitudinal axis) in the staving has at least one section to be that shape is identical and area equal (promptly this section is " straight up and down ", uiform section), and the cross section at other position is all unequal.

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

Say that at length staving is that drum shape, the side of " straight up and down " is barrel-shaped etc.; Or unequal section, be truncated cone-shaped, taper shape etc. like staving; Or the cross section of staving inwall some be uiform section; For example the latter half of round tank is a unequal section; The first half is prismatic, and promptly this round tank begins up at the bottom of the bucket that diameter enlarges gradually, arrives in the staving behind some height (for example 80 millimeters); Up staving diameter is exactly constant again, no longer enlarges.

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

The area of the cross section (perpendicular to longitudinal axis) in the staving is all unequal everywhere, and the cross section of piston type sealing device (shape and area) is consistent with staving certain cross section (shape and area); Or the piston type sealing device this as elastomer, it can adapt to the variation of cross section in the staving, reaches sealing function.

Said staving inwall has guide rail or guide groove, and the guide groove or the guide rail that are complementary are arranged on the piston type sealing device, so that the piston type sealing device moves along longitudinal axis in staving.

Be provided with the spiral lifting structure in the described staving, the spiral lifting structure can drive the piston type sealing device and in staving, move along y direction.Described spiral lifting structure comprises the helicitic texture of the mutual coupling that is provided with the corresponding outer wall of piston type sealing device on the staving inwall, and the piston type sealing device can be moved along longitudinal axis in staving.The lockable piston type of helicitic texture sealing device own rests on arbitrary position of staving inwall.

Described not with the piston type sealing device of sealing ring, between piston main body side wall surface and the staving inwall for being slidingly matched, preferably slipper seal simultaneously.

The said piston type sealing device that has sealing ring, between sealing ring on the piston main body and the staving inwall for being slidingly matched, preferably slipper seal simultaneously.

Be slidingly matched for slight interference between the side wall surface of said piston type sealing device and the staving inwall; It is the area that the area of the cross section of piston type sealing device is a bit larger tham in the staving (perpendicular to longitudinal axis) cross section; The side wall surface of piston type sealing device (no matter whether having sealing ring) has elasticity; This piston type sealing device can be put into staving after receiving external force, and can in staving, (along the staving longitudinal axis) move.Because the cross-sectional area of piston type sealing device is a bit larger tham in the staving (perpendicular to longitudinal axis) cross section, so have reliable sealing.

On the said piston type sealing device passage is arranged, passage runs through piston main body or piston packing.

Have valve on the passage of said passage or be not with valve; Said valve is two-way valve, check valve or other valves.

The circulating direction of said check valve is in staving, to flow to (be that air can flow out in the staving, the staving outer air can not get into) outside the staving.Two-way valve in off position, fluid can not pass through, can two-way circulate at the opening fluid (both can flow to the other end from valve one end, and also can circulate in the opposite direction); Check valve (also claiming check-valves) only allows fluid to flow to the other end from an end, and can not reverse flow.The whole staving of foodstuff liquid underfill the time, air is arranged in the staving in the staving, the piston type sealing device is put into staving, is moved to the process near the foodstuff liquid level, and the air in the staving is just through the passage discharge.

Also be provided with manual exhauster on the said piston type sealing device.

On the said piston main body passage is arranged, passage is outside equipped with manual pump bowl, and manually pump bowl and piston main body are one or dismountable minute body structure.Manually pump bowl (under external force) can extract the air in the staving.Said passage place also is provided with check valve (only allowing air in staving, in pump bowl, to flow).In the said pump bowl, also be provided with the check valve that allows air to flow to ambient atmosphere in the pump bowl.Manual exhauster with reference to Chinese patent CN200720114892.3 (manual vacuum pump bowl), CN201020233568.5 (a kind of manual pump bowl) announcement.

Said manual exhauster is a gasbag-type, and it has an air bag and bleeding point, can be through the bleeding point extracting air with the hand extruding gasbag.

Also have batching hole on the said piston main body, its effect is in staving, to put into foodstuff or water through batching hole; The port lid that feeds intake on the said batching hole, its effect is the shutoff batching hole, avoids outside air to get in the staving.Said batching hole covers sealing ring in addition, to seal batching hole more closely.Said batching hole covers locking and fixing device in addition, the helicitic texture of mutual coupling is for example arranged, with the fixed feeding area port lid between batching hole inwall and batching hole cover outer wall.

The sidewall of said staving has tap, conveniently to emit the foodstuff liquid in the staving.

The food processor of said band piston type sealing device is the provided with motor at lower formula: staving is arranged on the motor top; Motor is located in the support; Motor shaft (cutter shaft and motor shaft on an axis, both are for one or through the shaft coupling connection) stretches out in the support and extend in the staving.Staving is interior, the position, upper end of cutter shaft is provided with the crushing knife tool device; Support and staving are that the on-dismountable structure of integral type or support and staving are dismountable minute body structure; The piston type sealing device is arranged in the staving; Be slidingly matched between piston type sealing device and the staving inwall (preferably slipper seal simultaneously), the piston type sealing device can move along longitudinal axis in staving, and it is whole that piston type sealing device and food processor main body constitute food processor.

The food processor of said band piston type sealing device is the motor overhead: the head of food processor is placed in the staving, and food processor (crushing knife tool device) motor is arranged in the head, and cutter shaft (downwards) in head stretches out and extend in the staving.The lower end part of cutter shaft is provided with cutter (crushing knife tool device).The head of food processor itself constitutes the piston type sealing device, and be slidingly matched between the staving inwall (preferably slipper seal simultaneously), can in staving, move along longitudinal axis.Comprise:

Said head is fastened by loam cake and lower cover and constitutes, and (preferably slipper seal simultaneously) is slidingly matched between head lower cover side wall surface (side wall surface is provided with sealing ring outward or does not establish sealing ring) and the staving inwall; (preferably slipper seal simultaneously) is slidingly matched between side wall surface of head upper cover (side wall surface is provided with sealing ring outward or does not establish sealing ring) and the staving inwall; (preferably slipper seal simultaneously) is slidingly matched between the side wall surface of head lower cover, loam cake (side wall surface is provided with sealing ring outward or does not establish sealing ring) while and the staving inwall.

Said head lateral wall has piston main body, and (preferably slipper seal simultaneously) is slidingly matched between side wall surface of piston main body (side wall surface is provided with sealing ring outward or does not establish sealing ring) and the staving inwall.Head and piston (sealing) main body is the on-dismountable structure of integral type or dismountable minute body structure.

Said head is the fuselage of hand-held positive displacement food processor; This food processor also includes a staving; The fuselage outer side wall has piston main body, and (preferably slipper seal simultaneously) is slidingly matched between side wall surface of piston main body (side wall surface is provided with sealing ring outward or does not establish sealing ring) and the staving inwall.Fuselage and piston type sealing device are the on-dismountable structure of integral type or dismountable minute body structure.Fuselage includes drive division (in motor is arranged) and mixing part (including cutter shaft and crushing knife tool device), is between its drive division and the mixing part the on-dismountable structure of integral type or dismountable minute body structure (motor shaft of drive division with the cutter shaft of mixing part between connect with shaft coupling).

The food processor of said band piston type sealing device is that motor is side-mounted: the staving of food processor is arranged on the side of support; (crushing knife tool device device) motor of food processor is arranged in the support, and cutter shaft crosses out and extend in the staving in support.Staving is interior, the front end position of cutter shaft is provided with cutter (crushing knife tool device).Staving is horizontal, and the piston type sealing device is arranged in the staving, and piston type sealing device and staving inwall fit tightly, are slidingly matched, slipper seal, and it can laterally move in staving.

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

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

Said reducing mechanism comprises the known mechanical device that foodstuff is pulverized of food processors such as crushing knife tool formula, sound bistrique grinding formula.

The said foodstuff liquid of the present invention is the mixture of foodstuff (like soya bean) and water, or foodstuff and other liquid mixture.

Said food processor is that (commodity are called soy bean milk making machine for the positive displacement food processor of the band heater put on the motor; Rice paste machine etc.); Put on the motor (commodity are not called cooking machine with the positive displacement food processor of heater; Mixer etc.); (commodity are called soy bean milk making machine to the positive displacement food processor of the band heater of provided with motor at lower; Rice paste machine etc.); Provided with motor at lower (commodity are not called cooking machine with the positive displacement food processor of heater; Mixer etc.); Put on the motor not with the hand-held positive displacement food processor of heater (commodity handheld stirring machine by name etc.); (commodity are called soy bean milk making machine to the positive displacement food processor of the band heater of motor side; Rice paste machine etc.); The motor side (commodity are not called cooking machine with the positive displacement food processor of heater; Mixer etc.).

Advantage of the present invention is:

One, the food processor of band piston type sealing device; Through the piston type sealing device staving is sealed; Not only stop the staving extraneous air and (contain about 20～21% oxygen in the nature air; Down with) get in the staving, and the piston type sealing device can (along longitudinal axis) do lifting moving in staving, thus can be foodstuff be pulverized before air in the discharge barrel to greatest extent just; Reduce and avoid that foodstuff contact with air in the crushing process, oxidation, reduce nutritive losses such as enzymatic browning, minimizing vitamin.

Two, the piston type sealing device has the locking positioning device, avoids in the food processor course of work, and the piston type sealing device is moved by vibrations (or impacted by the foodstuff liquid of violent rotation), influences sealing effectiveness.

Three, have manual exhauster on the piston type sealing device, can extract the oxygen that dissolves in the water out.Avoid the oxidation of foodstuff liquid (like fruit juice) manufacturing process to greatest extent.This kind structure also has the effect that prolongs the fruit juice holding time.

Four, the present invention can regulate in very wide scope, and the user can put into the piston type sealing device staving and with hand push to foodstuff liquid level place, to discharge air, make not oxidized high-quality fruit juice according to each fruit juice requirement.

Description of drawings

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

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

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

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

Fig. 5 is first kind of vertical cut-away view of piston structure of the present invention.

Fig. 6 is second kind of vertical cut-away view of piston structure of the present invention.

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

Fig. 8 is the said piston structure vertical view of Fig. 7.

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

Figure 10 is the said piston structure vertical view of Fig. 9.

Figure 11 is the 5th kind of piston structure vertical 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 vertical cut-away view of piston structure of the present invention.

Figure 15 is the said piston structure vertical view of Figure 14.

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

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

Figure 18 is the four embodiment of the invention structural representation.

Figure 19 is the fifth embodiment of the invention structural representation.

The specific embodiment

Further set forth the present invention below in conjunction with embodiment.

As shown in the figure, support (head) 1; Staving 2; Cutter shaft 3; Cutter 4; Piston type sealing device 5; Compression spring 6; Screw and turn round 7; Screw and turn round hole 70.

(staving 2) longitudinal axis Z;

(on the head 1) loam cake 11; (on the 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 dop 543; Arm pivot post 544;

Batching hole 55; Port lid 555 feeds intake;

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

Dotted line 10.

The parts that have nothing to do with the present invention have been omitted in the accompanying drawing, like the universal component motor of food processor, control circuit board etc.

Foodstuff liquid is foodstuff (like fruit, vegetables) and water (or oil) mixture.The crushing knife tool device is only with cutter 4 signals.

Piston type sealing device 5 is (being used for cooperating with staving 2) sealing device general name that main spare and accessory parts (comprising sealing ring 522 etc.) are formed jointly by piston main body 51 grades.

Usually (crushing knife tool device) provided with motor at lower formula of food processor is called support.It is (detachably) split type two kinds for (on-dismountable) integral structure with support and staving that such food processor is divided into support and staving again.

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

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

The staving 2 of food processor is arranged on the support 1, and (crushing knife tool device) motor of food processor (among Fig. 1 draw) is arranged in the support 1, and cutter shaft 3 stretches out in the support 1 and extend in the staving 2.Staving 2 positions, upper end interior, cutter shaft 3 are provided with cutter 4 (cutter 4 is merely signal among Fig. 1).

(level) of (perpendicular to longitudinal axis) cross section of staving 2 is shaped as circle, and the shape of the cross section everywhere of staving 2 is identical and area equates (be staving 2 inwalls are straight up and down, the bung diameter is identical with barrel base diameter, and the longitudinal section is square).Staving 2 internal diameters can be 100 millimeters, in the staving 2 (from the bottom of the bucket to bung) 200 millimeters of height, its total measurement (volume) is 1570 milliliters.

(thickness can be 30 millimeters to piston type sealing device 5 for circular tabular; 99.99 millimeters of external diameters); It is arranged in the staving 2; Piston type sealing device 5 can be in staving 2 is that vertical direction moves (also be provided with valve on the circular tabular piston type sealing device 5, describe referring to piston concrete structures such as Fig. 5, Fig. 6, Fig. 7) along longitudinal axis.

When food processor uses, in staving 2, put into earlier an amount of foodstuff liquid.For example, put into staving 2 and be pushed into handgrip piston type sealing device 5 again and be adjacent to foodstuff liquid level place, so that staving 2 interior air all are discharged from 200 gram fruit about 100 millimeters places's (about 785 milliliters) highly in suitable quantity of water is put into staving 2.Start the rotation of food processor motor, foodstuff is pulverized in cutter 4 rotations, in the crushing process, because of there not being air in the staving 2 basically, so make fruit juice not oxidized (or only by remaining oxygen slight oxidation).

Piston type sealing device 5 the top that the position can not be lower than cutters 4 in the staving 2 is set.The top of cutter 4 is 30～50 millimeters apart from staving 2 inner bottom parts usually, the position is set can in (apart from staving 2 inner bottom parts) about 50～170 millimeters scopes, regulates of corresponding piston formula sealing device 5, and corresponding fruit juice volume is about 395～1330 milliliters.The user can regulate in very wide scope according to the fruit juice requirement of each reality, is pushed into foodstuff liquid level place to piston type sealing device 5, to discharge air, avoids the fruit juice oxidation.

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

The head 1 of food processor is placed in the staving 2, and food processor (crushing knife tool device) motor (among Fig. 2 draw) is arranged in the head 1, and cutter shaft 3 stretches out in the head 1 and extend in the staving 2.The lower end part of cutter shaft 3 is provided with cutter 4.

Head 1 lateral wall has piston type sealing device 5, is slidingly matched between side wall surface of piston type sealing device 5 (side wall surface is provided with or is not provided with sealing ring outward) and staving 2 inwalls, slipper seal.Head 1 is the on-dismountable structure of integral type or dismountable minute body structure with piston type sealing device 5.

(perpendicular to longitudinal axis) cross section of staving 2 is a square; And the shape of the cross section everywhere of staving 2 is identical and area equates (to be that staving 2 inwalls are straight up and down; Bung, bucket end cross section all are 80 * 80 millimeters); In the staving 2 (from the bottom of the bucket to bung) 200 millimeters of height, its total measurement (volume) is 1280 milliliters.

Piston type sealing device 5 is square plate shape (40 millimeters of a disc thickness), is 79.9 * 79.9 millimeters, and it puts into staving 2 to the user with handgrip, and piston type sealing device 5 can move along longitudinal axis (vertical direction) in staving 2.

In the time of use, in staving 2, put into earlier an amount of foodstuff liquid.For example, put into piston type sealing device 5 staving 2 and be pushed into again and be adjacent to foodstuff liquid level place, so that staving 2 interior air all are discharged from 200 gram fruit about 100 millimeters places's (about 640 milliliters) highly in suitable quantity of water is put into staving 2.Start the rotation of food processor motor, foodstuff is pulverized in cutter 4 rotations, in the crushing process, because of there not being air in the staving 2 basically, makes fruit juice not oxidized (or only by remaining oxygen slight oxidation) so pulverize.

Those skilled in the art of the present technique are appreciated that; Alternatively; The external diameter " carefully " of the head 1 of said motor overhead food processor (head 1 also can not be circular) (like 4～5 centimetres of external diameters) when people's a hand can be held, this head overhead food processor just becomes the hand-held food processor.Hand-held food processor majority is not worn staving 2 (be commonly called as and be hand-held on-positive displacement food processor), but (behind the configuration staving 2, in fact the becoming hand-held positive displacement food processor) that wears staving 2 also arranged.The food processor of band piston type sealing device of the present invention for the requirement of (hand-held positive displacement food processor) staving 2 inwalls is: be slidingly fitted with the piston type sealing device 5 on the head 1 (preferably slipper seal simultaneously), piston type sealing device 5 can move along longitudinal axis in staving 2.

Alternatively; The head 1 of hand-held (positive displacement) food processor, (among Fig. 2) dotted line 10 are drive division (in motor is arranged, draw among Fig. 2) with the upper part; Following position is mixing part (including cutter shaft 3 and cutter 4); Be dismountable minute body structure between its drive division and the mixing part, connect with shaft coupling (drawing among Fig. 2) between the cutter shaft 3 of the motor shaft of drive division (among Fig. 2 draw) and mixing part that driving cutter shaft 3 rotates.This kind demountable structure also is known hand-held food processor common structure.

As shown in 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, and (crushing knife tool device) motor of food processor (not drawing among Fig. 3) is arranged in the support 1, and cutter shaft 3 crosses out and extend in the staving 2 in support 1.Staving 2 front end positions interior, cutter shaft 3 are provided with cutter 4.

Staving 2 also is that horizontal (perpendicular to the cutter shaft axis) cross section is for circular; And the cross section of staving 2 is that what to equate (is that staving 2 inwalls are straight up and down everywhere; The bung diameter is identical with the bucket base diameter); In 100 millimeters of staving 2 internal diameters, staving 2 (from the bottom of the bucket to bung) 200 millimeters of length, its total measurement (volume) is 1570 milliliters.

Piston type sealing device 5 is discoid (30 millimeters of disc thickness), and its side-walls is provided with the elastic piston sealing ring and (does not draw among Fig. 3.Referring to piston concrete structure Fig. 5, Fig. 6 etc.); Elastic piston sealing ring external diameter is a bit larger tham the internal diameter of (for example, external diameter is 101 millimeters) staving 2, and it is arranged in the staving 2; Piston type sealing device 5 closely cooperates with staving 2 inwalls; Slipper seal can either laterally be moved it in staving 2, horizontal staving 2 interior foodstuff liquid are spilt.

Between staving 2 and the support 1 is demountable structure.Staving 2 can be pulled down from support 1, so that hold foodstuff liquid.And then put into piston type sealing device 5 staving 2 and be pushed into and be adjacent to foodstuff liquid level place, so that air all are discharged from the staving 2.Again staving 2 horizontal being installed on the support 1.Start the rotation of food processor motor, foodstuffs are pulverized in cutter 4 rotations, and in the crushing process, because of there not being air in the staving 2 basically, to make fruit juice not oxidized so pulverize.

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

Z is staving 2 longitudinal axis.Staving 2 along Z-direction (from the bottom of the bucket to bung) total height (length) is H, it is formed by three sections: H=h1+h2+h3.

(by bucket bottom beginning up, staving 2 cross sections become big or diminish (perpendicular to longitudinal axis Z's) cross section of the staving 2 of h1 section for all unequal everywhere.Among Fig. 4 for begin up from staving 2 inner bottom parts, cross section enlarges gradually).

(perpendicular to the longitudinal axis Z's) of the staving 2 of h2 the section identical and area of the shape of cross section everywhere equates that promptly staving 2 inside of h2 section are " straight up and down ".(h2 section place) dotted line is 5 signals of piston type sealing device in the staving 2.

Also (topmost begun up by h2, staving 2 cross sections become big or diminish (perpendicular to longitudinal axis Z's) cross section of the staving 2 of h3 section for all unequal everywhere.Among Fig. 4, this section cross section enlarges gradually, and when arriving bung, cross section is maximum, and just bung is a horn shape, puts into staving 2 to make things convenient for piston type sealing device 5).

It will be understood by those skilled in the art that in the staving 2 the h2 section be beneficial to most with piston type sealing device 5 be slidingly matched, slipper seal.

Among the present invention, h1=0～1000 millimeter; H2=0～10000 millimeter; H3=0～1000 millimeter.

Wherein the h1=h3=0 millimeter time, H=h2, promptly staving 2 internal cross section equate everywhere.

In the time of the h1=0 millimeter, h2+h3=H.Being shaped as of staving 2: the bung position is a variable cross-section, and the following position of bung is a uiform section.

In the time of the h2=0 millimeter, cross section is all unequal everywhere in the staving 2, and having only piston type sealing device 5 this moment is that elastomer could be done with staving 2 inwalls and is slidingly matched, seals.

In the time of the h3=0 millimeter, h1+h2=H.Being shaped as of staving 2: be variable cross-section near position, bucket bottom in the staving 2, h1 is uiform section with the upper part.

Staving according to the invention is preferably: 0＜h1≤100 millimeter; 10 millimeters＜h2≤500 millimeters; 0＜h1≤100 millimeter.

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

Piston main body 51 is plate-like (circular discoid, square plate-like or other shape plate-like), and its side wall surface periphery has seal groove 52, and seal groove 52 places also have sealing ring 522.The passage 53 that runs through is arranged on the piston main body 51, and the effect in this hole is: ventilating air when the piston type sealing device moves in staving 2.So this bore dia less (for example diameter is 1～5 millimeter).

Also have batching hole 55 on the piston main body 51, the effect of batching hole 55 is that convenient replenishing dropped into foodstuff in making foodstuff liquid process, so this hole big (for example diameter is 30～50 millimeters).Also have the demountable port lid 555 that feeds intake on the batching hole 55, feeding intake is interference fit between port lid 555 and the batching hole 55, and the port lid 555 that feeds intake is installed in and can seals this batching hole 55 after batching hole 55 is sentenced.

Arc shape handle 54 is arranged on piston main body 51, and the crossbeam bent body supplies hand-held, the operation of user.

In addition, passage 53 places can also be provided with removable plug (not drawing among Fig. 5), with shutoff passage 53.Or be provided with valve in addition again at passage 53 places, the valve of check valve (only allowing air in staving 2, to flow to outside the staving 2), two-way valve (allowing air to two-way circulate in the time of valve opening) or other form for example.

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

Piston main body 51 is inverted " bottle cap " shape, and its bottom is plate shaped, and the dish periphery is upwards dug one section height (to increase the contact area of its side wall surface and staving 2 inwalls).Sealing ring 522 is provided with and is fixed on piston main body 51 side wall surfaces.The effect of sealing ring 522 is to make that piston type sealing device 5 is slidingly matched with staving 2 inwalls more closely, slipper seal, and sealing ring 522 is double to have played the effect of interference friction-type locking positioning device.

Handle 54 is arranged on the piston main body 51, is single petioliform shape, supplies hand-held, the operation of user.

The passage 53 that runs through is arranged on the piston main body 51.Passage 53 be shaped as " taper " that port is big, the lower end is young, passage 53 places also are provided with removable plug 533.Removable plug 533 also is and passage 53 shape similar tapering, with shutoff passage 53 more closely.Removable plug 533 lower ends have lock pin 533 ' (between the lower surface of itself and piston main body 51 certain distance is arranged so that removable plug 533 moves up and down, opening and closing of fault passage 53), lock pin 533 ' effect is to prevent that removable plug 533 breaks away from piston main bodies 51.Passage 53 and removable plug 533 (together with lock pin 533 ') constitute valve jointly.When upwards pulling up removable plug 533, the passage of passage 53 is just opened, with ventilating air; When being seated removable plug 533 downwards, passage 53 is closed, and stops circulation of air.

Fig. 8 is the vertical view of Fig. 7, and Fig. 7 is vertical cut-away view (being the A-A view) of (Fig. 8's).

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

The elastomer that whole piston type sealing device 5 is made for silicon rubber; Be inverted " bottle cap " shape; Its bottom is 150 millimeters discs of diameter; Dish periphery (being side wall surface) is upwards dug one section 30 millimeters height (flexible disc circumference just is equivalent to sealing ring 522), to increase the contact area of piston type sealing device 5 side wall surfaces and staving 2 inwalls, makes that piston type sealing device 5 is slidingly matched with staving 2 inwalls more closely, slipper seal.Dish perimeter sides wall is double to have played the effect of interference friction-type locking positioning device.Dish periphery (after upwards digging one section height) its most significant end again in dish (symmetry) turn over into that certain distance (referring to Fig. 7, Fig. 8) has long annular hand grip hole 540 (also being symmetrical two) to form two symmetries, long annular hand grip 54 between the side wall surface of handle 54 and piston type sealing device 5.

On the discoid bottom of piston type sealing device 5 batching hole 55 being arranged, (dismountable) port lid 555 that feeds intake is arranged on the batching hole 55, is interference fit, sealing between the two.In this structure, also be provided with passage 53 on the port lid 555 that feeds intake, passage 53 is provided with removable plug 533.

In the time of use; The user inserts respectively in two handle holes 540 with two fingers; Two fingers inside simultaneously firmly (black arrow signal among Fig. 7) pulling handle 54; Further make 5 distortion (becoming curly form) of whole piston type sealing device, area by disc diminish, with the inwall of staving 2 between produce the slit, be convenient to put into piston type sealing device 5 in the staving 2 (pressing close to the foodstuff liquid level) precalculated position (or from staving 2 interior taking-ups).

Be provided with batching hole 55 so that add foodstuff and water midway.

Fig. 9 is the 4th kind of vertical cut-away view of piston structure of the present invention (being the B-B view of Figure 10).Figure 10 is the said piston structure vertical view of Fig. 9.

Piston main body 51 is discoid for hard material constitutes, 150 millimeters of diameters, and 5 millimeters of disc thickness, there is central shaft 511 that raise up, 40 millimeters of height at the center.The disc circumference side wall surface is set with elastic seal ring 522 (for example constituting for silicon rubber).30 millimeters of the height of the elastic seal ring 522 of annular, 150 millimeters of internal diameters, 522 ' (this thickening part 522 ' this part internal diameter of sealing ring 522 is diminished, (with reference to Figure 10) local oriented internally upset sealing ring thickening part.For example should thicken 2 millimeters in the part, and make this part internal diameter become 146 millimeters).Handle 54 is an oblong-shaped, 149 millimeters of length, and there is handle center hole 541 at its center, and handle 54 is enclosed within on the central shaft 511 (central shaft 511 tops also be provided with the central axis pin 511 that prevents handle 54 and come off ') through this centre bore 541.Handle 54 (hand through the user turns) can be around central shaft 511 rotations.

The handle 54 that length is 149 millimeters rotates to sealing ring thickening part 522 ' when locating in sealing ring 522 inside of 150 millimeters of internal diameters; Because of sealing ring thickening part 522 ' internal diameter diminishes is 146 millimeters; Cause two terminations of handle 54 to withstand sealing ring 522, and then sealing ring 522 (this part) is radially enlarged outward.(if this piston type sealing device 5 is arranged in the staving 2) makes the outer side surface of sealing ring 522 tightly withstand on staving 2 inwalls thus, plays piston type sealing device 5 (in staving 2) locking, positioning action (promptly expanding squash type locking positioning device).Be further rotated two terminations that handle 54 (or rotation) round about makes handle break away from sealing ring thickening part 522 ', just can remove this locking positioning effect.

The technical staff in present technique field is appreciated that said handle 54 can be three and reach with upper end; Sealing ring thickening part 522 ' also can be many places.

Figure 11 is the 5th kind of piston structure vertical 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.

For clear this kind of description piston structure cooperates, applicable cases, all be decorated with the partial view of staving 2 among Figure 11, Figure 12, Figure 13 in staving 2.

Piston main body 51 discoid for hard material constitutes (perimeter sides wall or have piston packing 522, draw among Figure 12, Figure 13), 150 millimeters of diameters, 5 millimeters of disc thickness have the spud pile 512 of two symmetries on the disk.

Two parallel arm pivot posts 544 (dotted line signal among Figure 11, Figure 13) are arranged on the spud pile 512, and arm pivot post 544 has certain distance each other, and the two ends of each arm pivot post 544 all are separately fixed on two spud piles 512.

Handle 54 is symmetrical two; The shape of each all is " L " type; There is arm pivot post hole 542 in the corner of its L, and each L type handle (through arm pivot post hole 542) is located on the arm pivot post 544, about two handles 54 be " back-to-back " (seeing Figure 12) and be symmetrical set.Handle 54 (under external force, seeing black arrow signal among Figure 12) can turn an angle on arm pivot post 544 through arm pivot post hole 542.Between two L type handle 54 erection part compression spring 6 is arranged, its effect is the erection part of roof pressure handle 54.

The base of L type handle 54 is a handle dop 543, and the leading section of handle dop 543 is less times greater than the external diameter of piston main body 51, so that its (under compression spring 6 effects) can be withstood the inwall of staving 2.The leading section of handle dop 543 be arc with staving 2 inwall curves (can make handle dop 543 and staving 2 inwalls increase contact area, increase reliability).

In the time of use, the user grasps the erection part of two handles 54, and inwardly firmly (squeeze pressure spring 6) makes handle 54 rotate to an angle along arm pivot post 544, and thus, handle dop 543 leading sections upwards lift, (the horizontal direction projection shortens) shrinks.Piston main body 51 is put into staving 2, the erection part of release handle 54, (under compression spring 6 effects) handle dop 543 descends, expands (the horizontal direction projection is elongated), main staving 2 inwalls of card, thereby fixes the position of piston main body 51 in staving 2.This kind locking positioning device belongs to expansion squash type locking positioning device.

Figure 14 is the 6th kind of vertical cut-away view of piston structure of the present invention (being the E-E view of Figure 15).

Figure 15 is the said piston structure vertical view of Figure 14.

For clear this kind of description piston structure cooperates, applicable cases, all be decorated with the partial view of staving 2 among Figure 14, Figure 15 in staving 2.

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

Piston main body 51 is that hard material constitutes and is inverted " Sequare-bottle cap shape ", peripheral side wall towards on have flange, make the middle part be " groove " shape, there is the central shaft 511 that raises up at the center.

Pressing plate 513 flat shapes are identical with piston main body 51, and there is plate hole 5130 at pressing plate 513 centers.Pressing plate 513 (longitudinal cross-section) is boss shape (shown in figure 14), and the position of its protrusion (cross section) is slightly smaller than " groove " in the piston main body 51.Pressing plate 513 is pressed on the piston main body 51 through plate hole 5130, and the boss on the pressing plate 513 stretches in " groove " in the piston main body 51.Between pressing plate 513 and the piston main body 51 sealing ring 522 is arranged, sealing ring 522 is enclosed within on the boss of pressing plate 513.

Screw and turn round 7 and be arranged on the central shaft 511; Screw turn round 7 and central shaft 511 between the helicitic texture that cooperatively interacts is arranged; Screw and turn round 7 and can be pressed on pressing plate 513 on the piston main body 51, and then make sealing ring 522 crimps, expand outwardly, hold out against staving 2 inwalls.Play and be that piston main body 51 positioning actions, this kind locking positioning device belong to expansion squash type locking positioning device.

Oppositely unclamping screws turns round 7 and makes the pressure solutions that sealing ring 522 receives remove, restore to the original state, and just can remove piston main body 51 fixing, locating staving 2 in.

Piston main body 51 is cylindrical elastomeric (for example piston main body 51 is that sponge or elastic silicone rubber by closed pore constitutes 102 millimeters of external diameters), and it is arranged in the cylindrical shape staving 2, and external diameter is a bit larger tham staving 2 internal diameters (100 millimeters of internal diameters).The user pushes the precalculated position in the staving 2 by force with handgrip piston main body 51.Because of piston main body 51 external diameters are bigger slightly than staving 2 internal diameters, therefore can make staving 2 sealings can make piston main body 51 self be fixed on a certain position (belonging to interference friction-type locking positioning device) again.

Piston main body 51 is " bottle cap " shape, and its inner top (being the lower surface) upwards arc (protruding) rises, and is beneficial to air accumulation, discharge in the staving 2.Sealing ring 522 is provided with and is fixed on piston main body 51 perimeter sides walls.

There is protruding cannelure 514 at the center, upper surface of piston main body 51.In the cannelure 514, on the piston main body 51 passage 53 (passage 53 does not draw) that runs through is arranged in Figure 17, check valve 531 is arranged on this passage 53 places, and its effect is: only allow air in staving 2, to flow to outside the staving 2, and can not reverse flow.

Also has a passage that runs through 53 (in Figure 17, also not drawing) outside the cannelure 514, on the piston main body 51; This place also is provided with stop valve 89; This valve action is: (manually) is when opening valve; Make staving 2 extraneous airs get into staving 2 inside, to remove (being caused) negative pressure, vacuum in the staving 2 by manual exhauster.

Also be provided with manual exhauster on the piston main body 51.Its concrete structure is: on the piston main body 51, have cylindrical shape pump bowl 8, its external diameter and cannelure 514 internal diameters to be complementary in the cannelure 514.Pump bowl 8 leading sections stretch in the cannelure 514, and the helicitic texture of mutual coupling is arranged between pump bowl 8 outer walls, cannelure 514 inwalls.The leading section of pump bowl 8 can be fixed in the cannelure 514 through helicitic texture.(effect is to prevent that the pump bowl 8 and the joint portion of cannelure 514 from leaking gas to also have sealing gasket 86 between (in the cannelure 514) pump bowl 8 front ends and piston main body 51 upper surfaces.For with piston main body 51 on sealing ring 522 distinguish, so should place's called after sealing gasket 86).The piston 81 of bleeding in the pump bowl 8, air exhaust rod 82 is arranged at piston 81 tops of bleeding.The top of air exhaust rod 82 is the handles 84 of bleeding.

Arc shape handle 54 is arranged on piston main body 51, and the crossbeam bent body at top supplies hand-held, the operation of user.They constitute handle 54 jointly according to shape shown in Figure 17 and structure and (specify, even if there is not handle 54, also can realize the air extraction in the staving 2.Handle 54 effects only are more convenient in order to use).

In the pump bowl 8, sidewall leans on down that the position also has another check valve 85, the circulating direction of this valve is: only allow air in pump bowl 8 outside the flow directions, and can not oppositely flow into.When piston 81 was bled in downward promotion, the air in the pump bowl 8 were discharged to the outside by check valve 85.

In the time of use (with reference to Fig. 1), put into staving 2 to piston main body 51, sealing ring on the piston main body 51 522 is interference with staving 2 inwalls, be slidingly matched, slipper seal.Grasp handle 54, the handle 84 of bleeding, upwards pulling (as among Figure 17 to direction shown in the upward arrow.Also be decorated with downward arrow among Figure 17 simultaneously; Be illustrated as back and forth and bleed) handle 84 of bleeding; The drive piston 81 of bleeding moves upward, and makes to produce negative pressure in the pump bowl 8, and then the air (comprising the dissolved oxygen in the foodstuff liquid in the staving 2) in the staving 2 are drawn in the pump bowl 8; Promote again to bleed handle 84, the piston 81 of bleeding is moved downward, then the air in the pump bowl 8 are just by check valve 85 discharges.Repeat this process, the air in the staving 2 is drawn out of fully, assurance foodstuff liquid is avoided oxidation to greatest extent in the crushing process.After air is drawn out of; Produce negative pressure in the staving 2; This negative pressure makes the piston type sealing device closely be attached to (liquid is incompressible fluid) on the foodstuff liquid level; Because the foodstuff liquid level has certain altitude apart from the staving inner bottom part, make the piston type sealing device be fixed on a certain position effect in the staving thereby reach, this is a suction type locking positioning device.

Bleeding finishes, after foodstuff liquid pulverized, opens stop valve 89, and staving 2 extraneous airs are got into, and removes the negative pressure state in the staving 2.Then just can further take out piston main body 51, take out the foodstuff liquid (like fruit juice) that makes.The advantage of this structure is: the dissolved oxygen in the foodstuff liquid also is drawn out of beyond the staving 2 together, stops oxidation best.

Figure 18 is the four embodiment of the invention structural representation.

The head 1 of food processor is placed in the staving 2, and food processor (crushing knife tool device) motor (among Figure 18 draw) is arranged in the head 1, and cutter shaft 3 stretches out in the head 1 and extend in the staving 2.The lower end part of cutter shaft 3 is provided with cutter 4.

It (is to be lower cover 12 below loam cake 11, the dotted line more than the dotted line among Figure 18 that head 1 is made up of with lower cover 12 fastenings loam cake 11; Dotted line is for fastening the intersection signal), the side wall surface of head lower cover 11, loam cake 12 simultaneously and and staving 2 inwalls between be slidingly matched, slipper seal.Head 1 itself constitutes the piston type sealing device, can in staving 2, move along longitudinal axis.

In the time of use, in staving 2, put into earlier an amount of foodstuff liquid.Put into head 1 staving 2 and be pushed into again and be adjacent to foodstuff liquid level place, so that air all are discharged from the staving 2.Start the rotation of food processor motor, foodstuff is pulverized in cutter 4 rotations, in the crushing process, because of there not being air in the staving 2 basically, makes fruit juice not oxidized (or only by remaining oxygen slight oxidation) so pulverize.In the present embodiment; The piston type sealing device that head 1 constitutes is in staving 2; Be on the interior foodstuff liquid level of staving; Because the foodstuff liquid level has certain altitude apart from the staving inner bottom part, make the piston type sealing device be fixed on a certain position effect in the staving thereby reach, this is a liquid level locate mode locking positioning device.

Figure 19 is the fifth embodiment of the invention structural representation.

The staving 2 of food processor is arranged on the support 1, and (crushing knife tool device) motor of food processor (among Figure 19 draw) is arranged in the support 1, and cutter shaft 3 stretches out in the support 1 and extend in the staving 2.Staving 2 positions, upper end interior, cutter shaft 3 are provided with cutter 4 (cutter 4 is merely signal among Figure 19).

Piston main body 51 for hard material constitutes circular tabular (thickness can be 30 millimeters; 99.99 millimeters of external diameters); There is the central shaft 511 that raises up at the center; It is arranged in the staving 2, and piston main body 51 can be in staving 2 is that vertical direction moves (also be provided with valve on the circular tabular piston main body 51, describe referring to piston concrete structures such as Fig. 5, Fig. 6) along longitudinal axis.

There is staving lid 515 staving 2 upper edges, and staving covers 515 centers has bung hole 5150, and the central shaft 511 of piston main body 51 is upward through bung hole 5150.Screw and turn round 7 and be arranged on (screwing and turn round hole 70 in 7 centers of turning round of screwing) on the central shaft 511; Screwing has the helicitic texture that cooperatively interacts between the inwall of turning round hole 70 and central shaft 511 outer walls; Screw and turn round 7 and can make that central shaft 511 is upper and lower to be moved; Thereby the effect of both playing (along staving 2 longitudinal axis) mobile piston main body 51 is also played and is piston main body 51 positioning actions, and this belongs to a kind of (present embodiment just is that with the main distinction of embodiment 1 the locking positioning device is different) of screw-type locking positioning device.

When food processor uses, in staving 2, put into earlier an amount of foodstuff liquid.For example 200 gram fruit in suitable quantity of water is put into staving 2 about 100 millimeters highly locate (about 785 milliliters); Put into staving 2, rotate to screw and turn round 7 and make piston main body 51 be adjacent to foodstuff liquid level place, with handgrip piston main body 51 again so that air all are discharged from the staving 2.Start the rotation of food processor motor, foodstuff is pulverized in cutter 4 rotations, in the crushing process, because of there not being air in the staving 2 basically, so make fruit juice not oxidized (or only by remaining oxygen slight oxidation).

It will be appreciated by those skilled in the art that; Central shaft 511 promptly is equivalent to liftable localization handspike; Staving lid 515 is located at the position, upper edge of staving 2; Be all standing staving 2 upper edges or not exclusively cover (even most of do not cover, only be a support, be used to support cooperate central shaft 511, screw and turn round 7 work).

Claims

1. food processor with the piston type sealing device; Mainly comprise reducing mechanism, motor, staving and control circuit board; It is characterized in that also comprising: the piston type sealing device is set in staving; For being slidingly matched, move between the side wall surface of piston type sealing device and the staving inwall along longitudinal axis in the staving; Described piston type sealing device comprises piston main body, is used to block the staving cross section.

2. food processor according to claim 1, it is characterized in that between side wall surface and the staving inwall of described piston type sealing device for be slidingly matched, slipper seal.

3. food processor according to claim 1 and 2 is characterized in that described piston main body has or do not have sealing ring; Sealing ring is arranged on side wall surface, top, the bottom of piston main body or is coated on piston main body outside, make seal between piston type sealing device and the staving inwall tight; Said piston main body and sealing ring are rigidity or flexible.

4. food processor according to claim 1 and 2 is characterized in that said piston main body is plate shaped, dish type, cylindricality, the tubular that the end is arranged, inner for hollow but the cylindricality, sphere or other arbitrary shape that do not connect fully; The cross section of piston main body is a closed-curve shape, comprising: circle, ellipse, triangle, square, polygon or other arbitrary shape.

5. food processor according to claim 1 and 2; It is characterized in that on the described piston type sealing device locking positioning device being arranged; Be used for being fixed in a certain position in the staving to the piston type seal body, comprise that interference friction-type, expansion squash type, suction type, screw-type, guide tracked, liquid level locate mode or other can make the piston type sealing device be locked at the mechanical device of staving inwall arbitrarily.

6. food processor according to claim 1 and 2 is characterized in that described staving is a bulk containers, and cross section is a closed-curve shape in the staving, comprises circle, ellipse, triangle, square, polygon or other arbitrary shape; Cross section is selected from following a kind of in the staving:

1) the identical and area of the shape of the cross section everywhere in the staving equates that promptly the staving inwall is " straight up and down " uiform section;

2) cross section in the staving has at least one section to be that shape is identical and area equal, and the cross section at other position is all unequal;

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

7. food processor according to claim 1 and 2 is characterized in that on the said piston type sealing device passage being arranged, and passage runs through piston main body or piston packing.

8. food processor according to claim 7 is characterized in that having valve or manual exhauster on the passage of said passage.

9. food processor according to claim 1 and 2 is characterized in that on the said piston main body batching hole being arranged, and port lid feeds intake on the batching hole.

10. the food processor of claim 1 or 2 described band piston type sealing devices is characterized in that it is to be selected from:

1) provided with motor at lower formula: staving is arranged on the motor top; Motor is located in the support; Support and staving are that the on-dismountable structure of integral type or support and staving are dismountable minute body structure, and the piston type sealing device is arranged in the staving, are slidingly matched between itself and the staving inwall, slipper seal; Can in staving, move vertically, constitute food processor integral body with the food processor main body;

2) motor overhead: head is placed in the staving, and motor is arranged in the head, cutter shaft in the head under stretch out and extend in the staving; The lower end part of cutter shaft is provided with reducing mechanism, and head itself constitutes the piston type sealing device, and be slidingly matched between the staving inwall, slipper seal, can in staving, move vertically, comprising:

Said head is fastened by loam cake and lower cover and constitutes, the head lower cover side wall surface and and the staving inwall between be slidingly matched, slipper seal; Be slidingly matched between the side wall surface of head upper cover and the staving inwall, slipper seal; The side wall surface of head lower cover, loam cake simultaneously and and the staving inwall between be slidingly matched, slipper seal;

Said head lateral wall has piston main body, is slidingly matched between the side wall surface of piston main body and the staving inwall, slipper seal; Head and piston type sealing device are the on-dismountable structure of integral type or dismountable minute body structure;

3) motor is side-mounted: staving is arranged on the side of support, and motor is arranged in the support, and cutter shaft crosses out and extend in the staving in support; In the staving, the front end position of cutter shaft is provided with reducing mechanism, staving is horizontal, the piston type sealing device is arranged in the staving, piston type sealing device and staving inwall fit tightly, are slidingly matched, slipper seal, it can be laterally mobile in staving.

11. the food processor of each described band piston type sealing device of claim 1-10, it is characterized in that described food processor be put on the positive displacement food processor, motor of the band heater put on the motor not with the positive displacement food processor of the band heater of the positive displacement food processor of heater, provided with motor at lower, provided with motor at lower not with put on the positive displacement food processor of heater, the motor not with the positive displacement food processor of the band heater of the hand-held positive displacement food processor of heater, motor side, motor side not with the positive displacement food processor of heater.