CN216045607U - Food preparation machine and be used for food preparation machine's flowing back valve - Google Patents

Abstract

The application discloses food preparation machine and be used for food preparation machine's flowing back valve, the flowing back valve includes the valve body and sets up in the first case and the second case of valve body, first case is equipped with and filters passageway and flowing back passageway, be equipped with the filter screen in the filtration passageway, the second case is equipped with escape way and inhalant canal, first case and second case can the mutual independence move to make arbitrary one among filtration passageway and the exhalant canal and arbitrary one among escape way and the inhalant canal counterpoint the intercommunication. The food processor comprises the crushing cavity and the liquid discharge valve, and any one of the filtering channel and the liquid discharge channel of the first valve core is arranged to be in counterpoint communication with the discharge channel and the water inlet channel of the second valve core, so that the liquid discharge valve can have the functions of directly discharging, filtering and discharging, directly feeding water and washing a filter screen by water inlet backflushing, the multifunctional integration of the liquid discharge valve is realized, the size of the food processor is reduced, and the use convenience of the food processor is improved.

Description

Food preparation machine and be used for food preparation machine's flowing back valve

Technical Field

The utility model relates to the technical field of food processing devices, in particular to a food processing machine and a liquid discharge valve for the food processing machine.

Background

The conventional food processor usually comprises a grinding cavity and a liquid discharge valve for controlling the opening and closing of a liquid discharge hole in the grinding cavity, wherein the liquid discharge valve usually comprises a valve body, a valve core arranged in the valve body and a driving motor in driving connection with the valve core. The valve body is provided with a liquid discharge hole, the valve core is internally provided with a liquid flow channel, and the valve core can move relative to the valve body under the driving of the driving motor so as to enable the liquid flow channel in the valve core and the liquid discharge hole on the valve body to be mutually communicated or mutually sealed, thereby controlling the opening and closing of the liquid discharge hole.

However, the conventional drain valve for a food processor only has the effect of guiding or blocking the outflow of liquid, and has a single function and low integration level, so that an additional filter element needs to be arranged on the food processor when the processed slurry is filtered, and after the filtering is completed, a user needs to clean the food processor and the filter element respectively, which requires a lot of labor of the user in the whole process and affects the use experience of the user. Moreover, the current food processor cannot pre-clean materials, and a user needs to clean the food materials outside the crushing cavity and then can put the food materials into the crushing cavity for processing, so that the use is inconvenient.

Disclosure of Invention

The utility model aims to provide a drain valve for a food processor, which is used for solving the problems of single function and low integration degree of the existing drain valve for the food processor.

In order to achieve the purpose, the utility model provides a drain valve for a food processor, which comprises a valve body, a first valve core and a second valve core, wherein the first valve core and the second valve core are arranged on the valve body, the first valve core is provided with a filtering channel and a drain channel, a filtering screen is arranged in the filtering channel, the second valve core is provided with a drain channel and a water inlet channel, and the first valve core and the second valve core can move independently so as to ensure that any one of the filtering channel and the drain channel is communicated with any one of the drain channel and the water inlet channel in an alignment way.

Through be provided with first case and second case in the valve body, and set up filtration passageway and flowing back passageway on first case, set up escape way and inhalant canal on the second case, when making first case and second case relative motion, it can be linked together with escape way to filter the passageway, make thick liquid in the food processing machine discharge after can being filtered by the filter screen among the filtration passageway again, so that the thick liquid that the user acquireed is more fine and smooth, when promoting user's use experience, the integrated level of flowing back valve has been improved, avoid additionally setting up the filtration piece on food processing machine.

Furthermore, when the first valve core and the second valve core move relatively to enable the filtering channel to be communicated with the water inlet channel, the water inlet channel can be filled with cleaning liquid to perform back flushing cleaning on the filtering net in the filtering channel, so that solid residues adhered to the filtering net can be washed away by the cleaning liquid, and the phenomenon that the filtering channel cannot smoothly circulate slurry due to the fact that the solid residues are blocked on the filtering net for a long time is avoided; and, the water inlet channel communicates with filtering channel so that the cleaning solution backflushing cleaning filter screen can also keep the cleanliness of filter screen, avoids breeding the bacterium on the filter screen, influences user's safety in utilization.

And when the filtering channel is communicated with the water inlet channel, clear water entering from the water inlet channel can enter the cavity of the food processing machine through the filtering channel, so that the food processing machine can clean food materials placed in the cavity of the food processing machine, and the step of manually cleaning the food materials is omitted. And after the food materials are cleaned, the filtering channel is communicated with the discharge channel, so that waste water in the food processing machine can be discharged through the filtering channel and the discharge channel in sequence, and the filtering net on the filtering channel can block the food materials, so that the food materials are prevented from flowing into the drain valve.

Further, when first case and second case relative motion so that flowing back passageway and inhalant canal are linked together, can also let in the cleaning solution in the inhalant canal to make the cleaning solution can enter into to food preparation machine's cavity through flowing back passageway inside, wash the crushing chamber after crushing work, final flowing back passageway is linked together with the escape canal, so that waste water discharges in crushing chamber, has promoted food preparation machine's intelligent level and has saved the manpower.

Furthermore, when the first valve core and the second valve core move relatively to enable the liquid discharge channel to be communicated with the discharge channel, waste water generated after the food material in the cavity of the food processing machine is cleaned or cleaning liquid generated after the cavity is cleaned can flow out of the food processing machine through the liquid discharge channel and the discharge channel in sequence, and the phenomenon that the cleanliness of the food processing machine is affected due to the waste water reserved in the food processing machine is avoided.

Therefore, the drain valve disclosed by the utility model can simultaneously have multiple functions of draining liquid, filtering, self-cleaning of the crushing cavity, pre-cleaning of food materials, self-cleaning of a filter screen and the like, the integration level of the drain valve and the intelligent level of a food processing machine are optimized, and the use experience of a user is improved.

In a preferred implementation manner of the drain valve, the first valve core is a first plane movable valve plate, the filtering channel is a filtering hole penetrating through the first plane movable valve plate, and the drain channel is a drain hole penetrating through the first plane movable valve plate;

or the first valve core is a first cylindrical valve core, the inlet of the filtering channel and the inlet of the liquid drainage channel are arranged along the circumferential direction of the first cylindrical valve core in a staggered manner, and the outlet of the filtering channel and the outlet of the liquid drainage channel are positioned at the same end of the first cylindrical valve core.

Through setting up first case into first plane movable valve piece to setting up filtering channel into the filtration hole, flowing back passageway sets up the form into the outage, can reduce the space of first case in vertical direction and occupy, is favorable to realizing the miniaturized design of flowing back valve.

Further, by providing the first spool as a first columnar spool, the space occupation of the first spool in the lateral direction can be reduced. Through the inlet with filtering channel and the entry of flowing back passageway dislocation arrangement in the circumference of first column case to the export with filtering channel and the export setting of flowing back passageway are in same one end of first column case, make filtering channel and flowing back passageway on the case can realize the effect that the one switched on.

In a preferred implementation manner of the drain valve, the second valve core is a second planar movable valve plate, the discharge channel is a discharge hole penetrating through the second planar movable valve plate, and the water inlet channel is a water inlet hole penetrating through the second planar movable valve plate.

Through setting up the second valve core into the form of second plane moving valve piece, can reduce the space of second valve core on vertical direction and occupy, be favorable to realizing the miniaturized design of flowing back valve.

In a preferred implementation manner of the drain valve, the second valve core is a second planar movable valve plate, the drain channel penetrates through the second planar movable valve plate, and the water inlet channel comprises a water outlet end extending along the axial direction of the second valve core and a water inlet end arranged on the side of the water outlet end.

The water inlet channel of the second valve core is arranged to comprise a water outlet end and a water inlet end, the water outlet end extends along the axial direction of the second valve core, and the water inlet end is arranged on the side of the water outlet end, so that the water inlet channel can have a long liquid flow channel, and the water inlet channel is convenient to seal. In addition, the water inlet end is arranged on the side part of the water outlet end, so that the water outlet end is convenient to communicate with an external water source, and the internal space distribution of the liquid discharge valve is optimized.

In a preferred implementation manner of the drain valve, the second valve core is a second cylindrical valve core, and the outlet of the water inlet channel and the inlet of the drain channel are arranged along the circumferential direction of the second cylindrical valve core in a staggered manner.

Through setting up the second case into second cylindric case, can reduce the space of second case in the horizontal direction and occupy, be favorable to realizing the miniaturized design of flowing back valve. And, through with the export of inhalant canal and the entry of escape canal along the circumference dislocation of second cylindric case, can realize the function that inhalant canal and escape canal selection switched on.

In a preferred implementation of the drain valve, the valve body is an integral valve housing having a first chamber in which the first valve spool is mounted and a second chamber in which the second valve spool is mounted;

alternatively, the valve body comprises a first valve housing and a second valve housing which are fixedly connected, the first valve core is arranged in the first valve housing, and the second valve core is arranged in the second valve housing.

The valve body is provided with the first cavity and the second cavity in an integrated valve shell mode, so that the valve body is convenient to machine and manufacture, and the machining cost of the drain valve is saved; in addition, the integrated valve shell can avoid a gap from being formed at the joint of the first cavity and the second cavity, and the possibility of liquid leakage of the liquid discharge valve is reduced.

Or, through setting up the valve casing into the form of fixed connection's first valve casing and second valve casing to install first case and second case respectively in first valve casing and second valve casing, convenience of customers carries out dismouting and change to the flowing back valve, reduces the maintenance and the replacement cost of flowing back valve.

In a preferred implementation manner of the drain valve, the drain valve further includes a first driving mechanism and a second driving mechanism, the first driving mechanism drives the first valve core to rotate, and the second driving mechanism drives the second valve core to rotate.

The first driving mechanism and the second driving mechanism are respectively arranged on the liquid discharge valve, the first valve core can be driven to rotate by the first driving mechanism, and the second valve core can be driven to rotate by the second driving mechanism, so that the first valve core and the second valve core can independently rotate to different working positions, and the phenomenon of interference between the first valve core and the second valve core is avoided.

In a preferred implementation of the drain valve, the drain valve further comprises a drain pipe mounted at the outlet of the drain channel.

The liquid discharge valve is provided with the liquid discharge pipe, and the liquid discharge pipe is arranged at the outlet of the discharge channel, so that the slurry flowing out of the food processing machine can be guided by the liquid discharge pipe and flows into a position preset by a user, and the phenomenon of slurry overflow is avoided.

In a preferred implementation of the drain valve, the drain valve further includes a sealing assembly for sealing mounting gaps between the first and second valve spools and the valve body.

Through being provided with seal assembly in the flowing back valve, when avoiding having liquid to flow through in first case and the second case, the phenomenon that liquid flows out from the clearance between first case and the second case appears, guarantees the inside leakproofness and the cleanliness of flowing back valve.

The utility model also provides a food processor, which comprises a crushing cavity with a liquid outlet and the liquid outlet valve, wherein the valve body is fixed outside the liquid outlet, and the first valve core can independently move to plug the liquid outlet or to ensure that any one of the filtering channel and the liquid outlet is in aligned communication with the liquid outlet.

Through setting up this flowing back valve in food preparation machine's flowing back mouth department for food preparation machine can have edible material and wash in advance, eat material processing, thick liquid and filter, multiple functions such as filter screen self-cleaning, has optimized food preparation machine's intelligent degree, promotes user's use and experiences.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall construction of a drain valve according to the present invention;

FIG. 2 is a sectional view showing the overall construction of a drain valve according to the present invention;

FIG. 3 is a schematic view of the first valve spool and the driving gear according to the first embodiment of the present invention;

FIG. 4 is a cross-sectional view of a first valve spool according to a second embodiment of the present invention;

FIG. 5 is a front view of a second valve spool according to a third embodiment of the present invention;

FIG. 6 is a cross-sectional view of a second valve cartridge according to a third embodiment of the present invention;

FIG. 7 is a cross-sectional view of another embodiment of a second valve cartridge according to a third embodiment of the present invention;

FIG. 8 is a cross-sectional view of a second valve cartridge according to a fourth embodiment of the present invention;

FIG. 9 is an exploded view of a drain valve according to a fourth embodiment of the present invention;

FIG. 10 is a first cross-sectional view of a drain valve according to a fourth embodiment of the present invention;

FIG. 11 is a second sectional view of the drain valve in the fourth embodiment of the present invention;

FIG. 12 is a cross-sectional view of a drain valve in a first operating condition according to a fourth embodiment of the present invention;

FIG. 13 is a first cross-sectional view of a drain valve in a second operational configuration in accordance with a fourth embodiment of the present invention;

FIG. 14 is a second cross-sectional view of the drain valve in a second operational configuration in accordance with the fourth embodiment of the present invention;

FIG. 15 is a cross-sectional view of a drain valve in a third operational configuration according to a fourth embodiment of the present invention;

FIG. 16 is a cross-sectional view of a drain valve in a fourth operational configuration according to a fourth embodiment of the present invention;

fig. 17 is a schematic view showing the overall structure of the first valve housing of the present invention;

fig. 18 is a sectional view showing the overall construction of a first valve housing of the present invention;

fig. 19 is an exploded view of the first valve housing of the present invention;

fig. 20 is a schematic view showing the overall structure of a second valve housing according to the present invention;

fig. 21 is a sectional view showing the overall construction of a second valve housing of the present invention;

fig. 22 is an exploded view of a second valve housing of the present invention;

FIG. 23 is a schematic view of the overall structure of a food processor according to the present invention;

FIG. 24 is a schematic view of the engagement of a grinding chamber and drain valve of a food processor according to the present invention.

Description of reference numerals:

1-a valve body; 11-a liquid inlet; 12-an arc-shaped groove; 13-a first valve housing; 131-a first drive mechanism; 1311-a drive gear; 132-a magnet detection element; 133-a first seal; 134-a second seal; 135-sealing sleeve; 14-a second housing; 141-a second drive mechanism; 2-a first valve core; 21-a first plane movable valve plate; 211-drainage channels; 212-a filtration channel; 2121-a filter screen; 213-a sealing part; 214-a magnet; 22-a first cylindrical spool; 3-a second valve core; 31-a second planar movable valve plate; 311-discharge channel; 312-a water inlet channel; 3121-water outlet end; 3122-water inlet end; 32-second cylindrical spool; 4-a liquid discharge pipe; 5-crushing cavity.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Descriptions in this specification as relating to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to any indicated technical feature or quantity. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in fig. 1 and 2, the present invention provides a drain valve for a food processor, comprising a valve body 1 and a first valve core 2 and a second valve core 3 arranged in the valve body 1. As shown in fig. 3 to 5, the first valve core 2 is provided with a filtering channel 212 and a drainage channel 211, the filtering channel 212 is provided with a filtering screen 2121, the second valve core 3 is provided with a drainage channel 311 and a water inlet channel 312, the first valve core 2 and the second valve core 3 can move independently, in this embodiment, the first valve core 2 and the second valve core 3 can rotate, so that any one of the filtering channel 212 and the drainage channel 211 is in alignment communication with any one of the drainage channel 311 and the water inlet channel 312. Of course, the first valve core 2 and the second valve core 3 can also be matched with the valve body through translation to realize the contraposition communication between any one of the filtering channel 212 and the liquid discharge channel 211 and any one of the discharge channel 311 and the water inlet channel 312.

It can be understood by those skilled in the art that by providing the first valve spool 2 and the second valve spool 3 in the valve body 1, and providing the filtering passage 212 and the draining passage 211 on the first valve spool 2, and providing the draining passage 311 and the water feeding passage 312 on the second valve spool 3, the first valve spool 2 and the second valve spool 3 can have four different corresponding positions when relatively rotating. One of them is when filtering passageway 212 and discharge passage 311 are linked together for thick liquid in the food preparation machine can be discharged after being filtered by filter screen 2121 in filtering passageway 212 again, so that the thick liquid that the user obtained is more exquisite, when promoting user's use and experience, has improved the integrated level of flowing back valve, avoids additionally setting up filter spare on the food preparation machine.

Further, when the first valve core 2 and the second valve core 3 rotate relatively to communicate the filter passage 212 with the water inlet passage 312, the water inlet passage 312 can be filled with cleaning liquid to perform backwashing on the filter screen 2121 in the filter passage 212, so that solid residues adhered to the filter screen 2121 can be washed away by the cleaning liquid, and the phenomenon that the filter passage 212 cannot smoothly circulate slurry due to the fact that the solid residues are blocked on the filter screen 2121 for a long time is avoided; in addition, the water inlet passage 312 is communicated with the filtering passage 212 so that the cleaning liquid can be backflushed to clean the filter screen 2121, the cleanliness of the filter screen 2121 can be kept, and the bacteria breeding on the filter screen 2121 is avoided to influence the use safety of a user.

Moreover, when the filtering channel 212 is communicated with the water inlet channel 312, the clean water entering from the water inlet channel 312 can enter the crushing cavity 5 of the food processor through the filtering channel 212, so that the food processor can clean the food material put into the crushing cavity 5 of the food processor, and the step of manually cleaning the food material is omitted. After the food materials are cleaned, the filtering channel 212 is communicated with the discharging channel 311, so that waste water in the food processing machine can be discharged through the filtering channel 212 and the discharging channel 311 in sequence, and the filtering net 2121 on the filtering channel 212 can block the food materials, so that the food materials are prevented from flowing into the liquid discharging valve.

Further, when the first valve core 2 and the second valve core 3 rotate relatively to enable the liquid discharge channel 211 to be communicated with the water inlet channel 312, cleaning liquid can be introduced into the water inlet channel 312, so that the cleaning liquid can enter the crushing cavity 5 of the food processor through the liquid discharge channel 211 to clean the crushing cavity 5 after crushing, and finally the liquid discharge channel 211 is communicated with the discharge channel 311, so that waste water is discharged from the crushing cavity 5, the intelligentization level of the food processor is improved, and manpower is saved.

Further, when the first valve core 2 and the second valve core 3 rotate relatively to enable the liquid discharge channel 211 to be communicated with the discharge channel 311, waste water generated after the food material in the crushing cavity 5 of the food processor is cleaned or cleaning liquid generated after the crushing cavity 5 is cleaned can flow out of the food processor through the liquid discharge channel 211 and the discharge channel 311 in sequence, and the phenomenon that the cleanliness of the food processor is affected due to the waste water reserved in the food processor is avoided.

Therefore, the drain valve of the utility model can simultaneously have multiple functions of draining liquid, filtering, self-cleaning of the crushing cavity 5, pre-cleaning of food materials, self-cleaning of the filter screen 2121 and the like, optimizes the integration level of the drain valve and the intelligent level of a food processing machine, and improves the use experience of users.

It should be noted that the form of the first valve element 2 is not particularly limited, and any one of the following embodiments may be used:

example 1: as shown in fig. 3, the first valve core 2 is a first flat movable valve plate 21, the filtering channel 212 is a filtering hole penetrating through the first flat movable valve plate 21, the drainage channel 211 is a drainage hole penetrating through the first flat movable valve plate 21, and the first flat movable valve plate 21 is further provided with a sealing portion 213, when the drainage valve is in a closed state, the sealing portion 213 can abut against the liquid inlet 11 on the valve body 1, so as to prevent slurry in the food processing machine from entering the drainage valve.

Those skilled in the art can understand that, by setting the first valve core 2 as the first flat movable valve plate 21, and setting the filtering channel 212 as the filtering hole, and setting the drainage channel 211 as the drainage hole, the space occupation of the first valve core 2 in the vertical direction can be reduced, which is beneficial to realizing the miniaturized design of the drainage valve.

Example 2: as shown in fig. 4, the first valve core 2 may also be configured as a first cylindrical valve core 22, an inlet of the filtering channel 212 and an inlet of the liquid discharging channel 211 are arranged along the circumferential direction of the first cylindrical valve core 22 in a staggered manner, and an outlet of the filtering channel 212 and an outlet of the liquid discharging channel 211 are located at the same end of the first cylindrical valve core 22, so that when the liquid discharging valve needs to filter and discharge the slurry in the food processing machine, the first valve core 2 rotates circumferentially to make the inlet of the filtering channel 212 opposite to the liquid inlet 11 on the valve body 1, so that the first valve core 2 can filter the slurry; when the liquid in the food processing machine needs to be discharged in a non-filtering way, the first valve core 2 rotates in the circumferential direction to enable the inlet of the liquid discharge channel 211 to be opposite to the liquid inlet 11 on the valve body 1, so that the liquid in the food processing machine is directly discharged.

Those skilled in the art will appreciate that the space occupation of the first spool 2 in the lateral direction can be reduced by providing the first spool 2 as the first cylindrical spool 22. The inlet of the filtering channel 212 and the inlet of the drainage channel 211 are arranged in a staggered mode in the circumferential direction of the first cylindrical valve core 22, and the outlet of the filtering channel 212 and the outlet of the drainage channel 211 are arranged at the same end of the first cylindrical valve core 22, so that the filtering channel 212 and the drainage channel 211 on the valve core can achieve an alternative conduction effect.

As a preferred implementation manner of this embodiment, as shown in fig. 4, the filtering channel 212 and the drainage channel 211 share a flow channel for the liquid to be drained and drained. Alternatively, as another preferable implementation manner of the present embodiment, the filtering passage 212 and the liquid discharging passage 211 have flow passages separated from each other in the first cylindrical spool 22.

It should be noted that the form of the second spool 3 is not particularly limited, and any one of the following embodiments may be used:

example 3: as shown in fig. 6, the second valve body 3 is a second flat movable valve plate 31, the discharge passage 311 is a discharge hole penetrating the second flat movable valve plate 31, and the water inlet passage 312 is a water inlet penetrating the second flat movable valve plate 31. The second flat movable valve plate 31 is further provided with a sealing portion 213, and the function of the sealing portion 213 is described above.

In this embodiment, when the first valve core 2 adopts the first flat movable valve plate 21, the first flat movable valve plate 21 and the second flat movable valve plate 31 are coaxially arranged, so that any two opposite arrangements of the filtering channel 212 and the drainage channel 211 arranged on the first flat movable valve plate 21 and the drainage channel 311 and the water inlet channel 312 arranged on the second flat movable valve plate 31 can be realized.

Or, when the first spool 2 adopts the first cylindrical spool 22, the central axis of the first cylindrical spool 22 is collinear with the axis of the drain passage 311 or the water inlet passage 312 on the second flat movable valve plate 31, so that the drain passage 311 and the water inlet passage 312 can alternatively correspond to the end of the first cylindrical spool 22 where the outlet of the filtering passage 212 and the outlet of the drain passage 211 are provided.

In this embodiment, through the form that sets up inhalant canal 312 as being on a parallel with the axial direction of second plane moving valve piece 31 runs through the inlet opening of second plane moving valve piece 31, the bottom of valve body 1 is provided with the arc wall 12 that moves and set up the inlet opening arc, and arc wall 12 can let the position and make the inlet opening can be connected with external water source to the removal of inlet opening, and, arc wall 12 can also carry on spacingly to the removal of inlet opening, avoids the inlet opening to excessively rotate. Through the arrangement mode, liquid can be directly and directly discharged in the water inlet hole, and noise generated by collision of the liquid and the inner wall of the water inlet hole is reduced.

As another preferred embodiment of the water inlet passage 312 in the present embodiment, as shown in fig. 7, the water inlet passage 312 includes a water outlet end 3121 extending axially along the second valve core 3 and a water inlet end 3122 opening at the side of the water outlet end 3121. Correspondingly, as shown in fig. 1, the arc wall 12 has to be seted up on the lateral wall of the valve body 1, and the arc wall 12 can give way to the end 3122 of intaking of the passageway 312 to make the end 3122 of intaking be linked together with external water source, the arc wall 12 can also carry on spacingly to the end 3122 of intaking, avoids intaking the excessive rotation of end 3122.

It can be understood by those skilled in the art that by providing the water inlet passage 312 of the second valve element 3 to include the water outlet end 3121 and the water inlet end 3122 and providing the water outlet end 3121 to extend in the axial direction of the second valve element 3, the water inlet end 3122 is provided at the side of the water outlet end 3121 so that the water inlet passage 312 can have a long liquid flow passage, and sealing of the water inlet passage 312 is facilitated. In addition, the water inlet end 3122 is arranged at the side of the water outlet end 3121, so that the water outlet end 3121 is conveniently communicated with an external water source, and the internal space distribution of the drain valve is optimized.

Example 4: as shown in fig. 8 and 9, the second spool 3 is a second spool 32, the outlet and the inlet of the water inlet passage 312 are both disposed on the side surface of the second spool 32, the inlet of the discharge passage 311 is disposed on the side surface of the second spool 32, the outlet of the discharge passage 311 is disposed on the end surface of the second spool 32, and the outlet of the water inlet passage 312 and the inlet of the discharge passage 311 are circumferentially displaced along the second spool 32;

by providing the second spool 3 as the second cylindrical spool 32, the space occupation of the second spool 3 in the lateral direction can be reduced, which is advantageous for the miniaturization of the drain valve. Further, the outlet of the water inlet passage 312 and the inlet of the discharge passage 311 are arranged in a staggered manner in the circumferential direction of the second cylindrical spool 32, so that the water inlet passage 312 and the discharge passage 311 can be selectively communicated.

In the present embodiment, as shown in fig. 10 and 11, when the first spool 2 employs the first flat movable vane 21, the filtering passage 212 and the discharging passage 211 on the first flat movable vane 21 can correspond to the outlet of the water inlet passage 312 and the inlet of the discharging passage 311 on the second cylindrical spool 32, respectively.

When the first spool 2 adopts the first cylindrical spool 22, the outlet of the water inlet passage 312 and the inlet of the drain passage 311 on the second cylindrical spool 32 can be alternatively selected to correspond to the end of the first cylindrical spool 22 where the outlet of the filtering passage 212 and the outlet of the drain passage 211 are provided.

As shown in fig. 12, the drainage valve is in the first operating state, and the sealing portion 213 of the first movable planar valve sheet 21 corresponds to the drainage channel 311 of the second cylindrical valve core 32, so that when the cavity 5, food cleaning or food crushing is performed in the crushing cavity 5, the sealing portion 213 can seal the liquid inlet 11 of the valve body 1, and the liquid in the crushing cavity 5 is prevented from entering the drainage valve.

As shown in fig. 13 and 14, when the drain valve is in the second operating state, the filter 2121 of the first flat movable valve plate 21 is communicated with the discharge passage 311 of the second cylindrical valve core 32, so that the slurry in the crushing chamber 5 can be filtered by the filter 2121 and flow out of the discharge passage 311; or, after the food material is cleaned in the crushing cavity 5, the waste water can be discharged through the filtering channel 212 and the discharging channel 311, and the food material can be blocked by the filtering net 2121, so that the food material is prevented from being lost.

As shown in fig. 15, when the drain valve is in the third operating state, the filter screen 2121 on the first flat movable valve plate 21 is opposite to the water inlet passage 312 of the second cylindrical valve core 32, so that the filter screen 2121 can be back-flushed by the water flow entering from the water inlet passage 312, and the filter screen 2121 is prevented from being blocked; or, when the food material in the crushing cavity 5 is cleaned, the clean water can enter the crushing cavity 5 through the water inlet channel 312 and the filtering channel 212, and meanwhile, the filtering net 2121 can block the food material, so that the food material is prevented from flowing away from the filtering channel 212.

As shown in fig. 16, the drain valve is in the fourth operating state, and the drain passage 211 of the first flat movable valve plate 21 is communicated with the drain passage 311 of the second cylindrical valve element 32, so that the liquid in the pulverization chamber 5 flows out of the drain valve without hindrance, for non-filtration discharge of the slurry and discharge of the washing waste water.

As a preferred mode of carrying out the present invention, as shown in fig. 17 and 20, the valve body 1 includes a first valve housing 13 and a second valve housing 14 fixedly connected, the first valve spool 2 is installed in the first valve housing 13, and the second valve spool 3 is installed in the second valve housing 14.

Those skilled in the art can understand that, by setting the valve housings to be in the form of the first valve housing 13 and the second valve housing 14 which are fixedly connected, and installing the first valve element 2 and the second valve element 3 in the first valve housing 13 and the second valve housing 14 respectively, a user can conveniently disassemble and replace the drain valve, and the maintenance and replacement costs of the drain valve are reduced.

Alternatively, as another preferred implementation of the valve body 1, the valve body 1 is an integral valve housing having a first chamber in which the first valve spool 2 is mounted and a second chamber in which the second valve spool 3 is mounted.

As can be understood by those skilled in the art, by providing the valve body 1 in the form of an integrated valve housing having the first chamber and the second chamber, the processing and manufacturing of the valve body 1 are facilitated, and the processing cost of the drain valve is saved; in addition, the integrated valve shell can avoid a gap from being formed at the joint of the first cavity and the second cavity, and the possibility of liquid leakage of the liquid discharge valve is reduced.

As a preferred implementation of the present invention, as shown in fig. 17 to 19, a first driving mechanism 131 is provided on the first valve housing 13, as shown in fig. 20 to 22, a second driving mechanism 141 is provided on the second valve housing 14, the first driving mechanism 131 drives a driving gear 1311 in the valve body 1 to rotate, the driving gear 1311 is engaged with the first valve core 2 to drive the first valve core 2 to rotate, and the second driving mechanism 141 drives the second valve core 3 to rotate by the same principle.

As will be understood by those skilled in the art, by providing the first driving mechanism 131 and the second driving mechanism 141 on the drain valve respectively, and enabling the first driving mechanism 131 to drive the first valve spool 2 to rotate, the second driving mechanism 141 can drive the second valve spool 3 to rotate, so that the first valve spool 2 and the second valve spool 3 can rotate to different working positions independently of each other, the interference between the first valve spool 2 and the second valve spool 3 is avoided.

As a preferred mode of carrying out the present invention, as shown in fig. 20, the drain valve further includes a drain pipe 4, and the drain pipe 4 is attached to an outlet of the drain passage 311. By providing the drain valve with the drain pipe 4 and installing the drain pipe 4 at the outlet of the drain passage 311, the slurry flowing out of the food processor can be guided by the drain pipe 4 and flow into a position predetermined by the user, thereby avoiding the slurry from overflowing.

As shown in fig. 18 and 21, the drain valve further includes a seal assembly for sealing the installation gaps between the first and second valve spools 2 and 3 and the valve body 1.

It should be noted that the form of the seal assembly is not limited in particular, and may adopt any feasible embodiment, for example, as shown in fig. 19 and 22, when the first spool 2 and the second spool 3 adopt the arrangement of the first flat movable valve plate 21 and the second flat movable valve plate 31, the seal assembly may be arranged to respectively fit the first seal 133 and the second seal 134 mounted on two side surfaces of the first flat movable valve plate 21 or the second flat movable valve plate 31. As shown in fig. 9, when first and second spools 2, 3 are arranged in first and second cylindrical spools 22, 32, a seal assembly may be provided as a gland 135 disposed about the first and second cylindrical spools 22, 32.

As a preferred embodiment of the present invention, as shown in fig. 3 and 5, the first valve spool 2 and the second valve spool 3 may further include a magnet 214, the valve body 1 may further include a magnet detecting element 132 for detecting a moving position of the magnet 214, and when the first valve spool 2 or the second valve spool 3 rotates, the magnet 214 provided thereon rotates together, so that the magnet detecting element 132 can detect a specific position of the first valve spool 2 or the second valve spool 3.

It should be noted that the magnet detecting element 132 of the present invention can adopt any of a variety of possible embodiments, such as a hall element, a reed switch, and the like.

The utility model also discloses a food processor, as shown in fig. 23 and fig. 24, comprising a crushing cavity 5 provided with a liquid outlet and a liquid outlet valve, wherein the liquid outlet valve is the liquid outlet valve for the food processor, the valve body 1 is fixed outside the liquid outlet, and the first valve core 2 can rotate to seal the liquid outlet or to ensure that any one of the filtering channel 212 and the liquid outlet channel 211 is in contraposition communication with the liquid outlet.

The technical personnel in the field can understand that through setting up this flowing back valve in food preparation machine's flowing back mouth department for food preparation machine can have edible material and wash in advance, eat material processing, thick liquid filters, filter screen 2121 self-cleaning multiple functions such as etc., has optimized food preparation machine's intelligent degree, promotes user's use and experiences.

The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims (10)

1. The drain valve for the food processing machine is characterized by comprising a valve body, a first valve core and a second valve core, wherein the first valve core and the second valve core are arranged on the valve body, the first valve core is provided with a filtering channel and a drain channel, a filter screen is arranged in the filtering channel, the second valve core is provided with a drain channel and a water inlet channel, and the first valve core and the second valve core can move independently so that any one of the filtering channel and the drain channel is communicated with any one of the drain channel and the water inlet channel in an alignment mode.

2. The drain valve for a food processor as claimed in claim 1, wherein the first valve core is a first flat movable valve plate, the filtering passage is a filtering hole penetrating through the first flat movable valve plate, and the drain passage is a drain hole penetrating through the first flat movable valve plate;

or the first valve core is a first cylindrical valve core, the inlet of the filtering channel and the inlet of the liquid drainage channel are arranged along the circumferential direction of the first cylindrical valve core in a staggered manner, and the outlet of the filtering channel and the outlet of the liquid drainage channel are positioned at the same end of the first cylindrical valve core.

3. The drain valve for a food processor as claimed in claim 1, wherein the second valve core is a second flat movable valve plate, the drain passage is a drain hole penetrating through the second flat movable valve plate, and the water inlet passage is a water inlet hole penetrating through the second flat movable valve plate.

4. The drain valve for a food processor as claimed in claim 1, wherein the second valve core is a second planar movable valve plate, the drain passage extends through the second planar movable valve plate, and the water inlet passage comprises a water outlet end extending axially along the second valve core and a water inlet end opening at a side of the water outlet end.

5. The drain valve for a food processor of claim 1, wherein the second spool is a second cylindrical spool, and the outlet of the inlet channel and the inlet of the drain channel are circumferentially offset along the second cylindrical spool.

6. The drain valve for a food processor according to claim 1, wherein the valve body is an integral valve housing having a first chamber and a second chamber, the first valve spool being mounted in the first chamber and the second valve spool being mounted in the second chamber;

alternatively, the valve body comprises a first valve housing and a second valve housing fixedly connected, the first valve spool is mounted in the first valve housing, and the second valve spool is mounted in the second valve housing.

7. The drain valve for a food processor of claim 1, further comprising a first drive mechanism and a second drive mechanism, wherein the first drive mechanism drives the first valve spool to rotate and the second drive mechanism drives the second valve spool to rotate.

8. The drain valve for a food processor of claim 1, further comprising a drain tube mounted at an outlet of the drain channel.

9. The drain valve for a food processor of claim 1, further comprising a sealing assembly for sealing a mounting gap between the first and second valve spools and the valve body.

10. A food processor comprising a grinding chamber provided with a liquid outlet and a liquid outlet valve, wherein the liquid outlet valve is the liquid outlet valve for the food processor as claimed in any one of claims 1 to 9, the valve body is fixed outside the liquid outlet, and the first valve core can move independently to seal off the liquid outlet or to align and communicate any one of the filtering channel and the liquid outlet with the liquid outlet.

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