CN217365527U

CN217365527U - Food preparation machine of self-cleaning

Info

Publication number: CN217365527U
Application number: CN202220433727.9U
Authority: CN
Inventors: 朱泽春; 祝汉营
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-09-06
Anticipated expiration: 2032-03-01

Abstract

The utility model relates to a food preparation machine field discloses a food preparation machine of self-cleaning, which comprises a host computer, processing cup subassembly, flowing back valve and water tank, processing cup subassembly is equipped with the process chamber that is used for the slurrying, the process chamber is equipped with the mud discharging port, the flowing back valve is equipped with flowing back passageway, the flowing back passageway is equipped with inlet and liquid outlet, the inlet communicates the mud discharging port, the flowing back valve is including the case of locating the flowing back passageway and drive the drive arrangement of valve core for the translation of flowing back passageway, the flowing back passageway still is equipped with the water inlet of connecting the water tank, drive arrangement can drive the valve core and remove to first intercommunication position and second intercommunication position, at first intercommunication position, the inlet can communicate with the liquid outlet, at second intercommunication position, water inlet and liquid outlet intercommunication. The utility model provides a food preparation machine can wash the flowing back passageway, guarantees the cleanness of flowing back passageway, promotes user's use and experiences.

Description

Food preparation machine of self-cleaning

Technical Field

The utility model relates to a food preparation machine field, concretely relates to food preparation machine of self-cleaning.

Background

In order to reduce the trouble of cleaning a food processor by a user, the conventional food processor is generally provided with a self-cleaning function, and water is injected into a processing cavity, and after cleaning is completed, cleaning waste water is discharged through a drain valve, so that the cleaning process is completed. The flowing back valve has the function of thick liquid and row's waste water generally concurrently, but current food preparation machine does not generally have the function of the flowing back passageway of wasing the flowing back valve, and the thick liquid is comparatively thick, and the residue adheres easily on the chamber wall of flowing back passageway under the effect of liquid surface tension in the thick liquid, treats the process chamber and washs after finishing, and the probably dry caking of part residue, the adhesion is on the chamber wall, the clearance degree of difficulty grow, and washing waste water only leans on self gravity to discharge downwards moreover, and rivers impact force is less, and clean dynamics is less. Therefore, the liquid discharge channel is difficult to clean by washing the liquid discharge channel with the cleaning wastewater. In the long-time use process, food residues in the liquid discharge channel go moldy and go bad to generate peculiar smell, so that when the pulp is discharged again, the newly prepared pulp is polluted, and the user experience is not good. The patent number is CN201720936700.0, in the Chinese utility model patent of the name "a soybean milk machine", a switching-over rotary valve is disclosed, be provided with input port and water supply assembly intercommunication on this switching-over rotary valve's the case, and the case can realize water supply assembly and intake to smashing the cup in the pivoted in-process. However, the reversing rotary valve realizes water inlet and slurry discharge, and cannot be directly cleaned or cleaned, and particularly, a valve core is difficult to clean; close to patent CN201720936700.0, the Chinese utility model patent with the patent number of "CN202121255021. X", the name of "an integrated food processor" and the patent number of "CN 202121372461.3", the name of "a food processor" discloses the water valve device of case translation, through setting up the water inlet, realized closing, flowing back and water inlet function, there is the problem that can not directly wash or clean the rotary valve equally, especially the case is difficult to wash cleanly; in addition, in a Chinese utility model patent with the name of "valve body device and food processor", the patent number of CN202020298753.6 discloses a scheme that a valve body in the valve body device can be disassembled and separated relative to a cup body assembly, pulping is completed, a user can manually disassemble a valve core and the valve body to realize cleaning, but the structure is complex, the disassembly and the installation of the valve core and the valve body are very troublesome, and the problems of improper installation and leakage of slurry of a drain valve are easily caused by the valve core and the valve body; in addition, my department's patent application patent number is 202110279843.X, in the chinese utility model patent of the name "food preparation machine of flowing back valve automatically cleaning", it has first input port and the second input port that communicates with pulping cavity and supply system respectively to disclose the flowing back valve, cross the fluid-discharge tube that liquid passageway located case or case below, the intercommunication of intercommunication mouth alternative and first input port and second input port of liquid passageway is realized crossing through rotating the case, in order to carry out flowing back respectively or to carry out the automatically cleaning of liquid passageway, change the valve structure and be a flowing back valve structure of comparatively commonly used at present.

SUMMERY OF THE UTILITY MODEL

In order to solve one or more technical problem among the prior art, or at least provide a profitable selection, the utility model provides a food preparation machine of self-cleaning can wash the flowing back passageway, guarantees the cleanness of flowing back passageway, promotes user's use and experiences.

The utility model provides a food preparation machine of self-cleaning, which comprises a main frame, processing cup subassembly, flowing back valve and water tank, processing cup subassembly is equipped with the process chamber that is used for the slurrying, the process chamber is equipped with the drainage port, the flowing back valve is equipped with the flowing back passageway, the flowing back passageway is equipped with inlet and liquid outlet, the flowing back valve is including the case of locating the flowing back passageway and drive the drive arrangement of valve core for the translation of flowing back passageway, the flowing back passageway still is equipped with the water inlet of connecting the water tank, drive arrangement can drive the valve core and remove to first intercommunication position and second intercommunication position, at first intercommunication position, the inlet can communicate with the liquid outlet, at second intercommunication position, water inlet and liquid outlet intercommunication, wash the flowing back passageway and will wash the water discharge with intaking.

In the technical scheme of this application, the flowing back valve includes the flowing back passageway and locates the case of flowing back passageway, through the position of adjustment case in the flowing back passageway, realizes the conversion of flowing back passageway from the shutoff state to the connected state. Different with the mode that sets up the flowing back passageway among the prior art in the case, in this scheme, the case is located in the flowing back passageway, and can carry out relative movement for the flowing back passageway, changes the switching of inlet, liquid outlet and water inlet through the removal of case to can realize flowing back and wash the flowing back passageway. The flowing back passageway has two kinds of intercommunication states, moves to first intercommunication position when the case, and the inlet can communicate with the liquid outlet to realize the function of row's thick liquid or row washing waste water. When the case removed to the second intercommunication position, the water inlet can communicate with the liquid outlet, washs water and flows to flowing back the liquid discharge passage and discharge from the liquid outlet from the water inlet to wash the liquid discharge passage. The food preparation machine of this scheme can wash the back to the process chamber, and then wash the flowing back passageway alone, reduces probably to adhere in the residue of passageway inner wall, perhaps before the thick liquid is arranged, washes the flowing back passageway alone, can clear up the flowing back passageway that exposes in the external world, avoids probably having the thick liquid that pollutes newly-made such as dust, promotes user's use and experiences. Among the prior art, generally pressurize through the water pump and supply water, compare in adding water through a lot of to the processing intracavity and wash away the scheme of flowing back fluid passage, the washing water flow impact force that flows out in the processing intracavity is less, and this scheme carries out high-pressure impact to flowing back fluid passage through the water tank, and in addition, the bore of water inlet generally sets up lessly, also can play the effect that the pressurization was supplied water, and the water flow impact force is great, and clean dynamics is great, and the cleaning performance is better. Moreover, the cleaning of the liquid drainage channel can be realized only by providing a small amount of water into the liquid drainage channel, which is beneficial to saving water.

In a preferred implementation of a self-cleaning food processor, the valve core is provided with a water supply channel, the water supply channel is isolated from the liquid inlet in a staggered manner at a first communication position, and the water supply channel can be communicated with the water inlet and the liquid outlet at a second communication position.

Through setting up water supply channel at the case, at first intercommunication position, water supply channel and inlet dislocation are isolated, and the thick liquid of inlet department can not pollute water supply channel or block up water supply channel's the condition in being difficult to get into water supply channel, guarantees inhalant canal's cleanness. At the second intercommunication position, water supply channel one end intercommunication water inlet, the other end can communicate the liquid outlet, washs water and trickles along water supply channel rather than directly getting into the flowing back passageway, utilizes water supply channel to change the impact direction of rivers. On the one hand, with rivers direction drainage channel's a side lateral wall guide, because washing wastewater is difficult to be full of whole drainage channel, lead to the lateral wall at partial drainage channel can't be washed, but the residue of the still remaining part splash of this department, guide rivers to this partial side wall, carry out the pertinence and wash, and rivers scatter the back in this department lateral wall department four, the lateral wall of the rest part also can effectively be cleared up, on the other hand, when drainage channel's liquid outlet and water inlet have the deviation in the direction, utilize water supply channel to change the rivers direction, can guide rivers to flow towards the liquid outlet.

In a preferred embodiment of the self-cleaning food processor, the food processor further comprises a liquid receiving cup arranged below the liquid discharge valve, the liquid discharge valve further comprises a valve mouth extending above the liquid receiving cup, a part of the liquid discharge channel is arranged at the valve mouth, and the water supply channel is arranged obliquely relative to the radial direction of the valve core so that the outlet of the water supply channel faces one side wall of the valve mouth.

The liquid receiving cup is arranged below the liquid discharge valve to contain and receive the slurry or wash wastewater, the liquid receiving valve is provided with a valve nozzle extending to the upper part of the liquid receiving cup, the valve nozzle is used for compensating the longitudinal distance between the valve body of the liquid discharge valve and the liquid receiving cup, and the situation that the washing water splashes to the working table top when the slurry flows down is avoided. At the second intercommunication position, water supply channel one end intercommunication water inlet, the import of one end intercommunication valve nozzle can directly wash alone the valve nozzle. Because the radial direction slope setting of water supply channel for the case, in the import department of valve mouth, rivers towards one side lateral wall to the valve mouth, under the impact force effect, rivers four scatter to carry out comprehensive washing to the valve mouth inside wall, when avoiding rivers directly to wash and down, partial valve mouth inside wall can't obtain abluent problem.

In a preferred embodiment of the self-cleaning food processor, the drainage valve further comprises a valve housing and a drainage tube which is arranged in the valve housing, the drainage tube being provided with at least some drainage channels, the valve element being arranged coaxially with the drainage tube and being able to move relative to the latter along the drainage tube.

The flowing back valve includes the valve casing, is fixed in drain valve structure in thick liquid mouth department through setting up the valve casing to be used for supporting other valve body structures of installation. Be equipped with the fluid-discharge tube in the valve casing and form partial flowing back passageway, case and the coaxial setting of fluid-discharge tube, the case carries out relative movement along axial direction, and it is higher to remove the reliability, also is favorable to sealing, prevents the weeping.

In a preferred embodiment of the self-cleaning food processor, the food processor further comprises a liquid receiving cup arranged below the liquid discharge valve, the liquid discharge valve further comprises a valve nozzle extending above the liquid receiving cup, a part of the liquid discharge channel is arranged in the valve nozzle, and the valve nozzle and the liquid discharge pipe are of an integrated structure.

The valve nozzle is arranged to facilitate liquid drainage into the liquid receiving cup so as to avoid liquid splashing. Through setting up valve nozzle and fluid-discharge tube an organic whole, simple structure is reliable, and the assembly is imitated and is strained the height. The joint of the valve nozzle and the liquid discharge pipe is not required to be provided with a sealing structure, so that the effect of preventing liquid leakage can be realized.

In a preferred embodiment of a self-cleaning food processor, the drain valve is provided with a detection device for detecting the position of the valve element, the detection device comprising a trigger element arranged on one of the valve element or the valve housing and a sensor element arranged on the other of the valve element or the valve housing.

The position of the valve core is detected by arranging the detection device, and the valve core is accurately positioned to control the movement of the valve core in the liquid drainage channel. The detection device comprises a trigger part and a sensing part, when the valve core moves to a certain communication position, the sensing part receives a trigger signal of the trigger part and transmits the trigger signal to a control panel of the host machine, so that the driving device is controlled to stop the movement of the valve core.

In a preferred embodiment of the self-cleaning food processor, the triggering element is a magnet arranged on the valve element, the sensor elements are a plurality of magnetic induction elements arranged on the valve housing, the magnetic induction elements correspond to the respective communication positions, and the magnet is moved with the valve element relative to the valve housing to the respective communication positions in order to be able to trigger the magnetic induction elements.

The magnet arranged on the valve core moves to different magnetic induction elements, and the magnetic induction elements are triggered to send position signals to the host machine so as to determine the position of the valve core. Magnet and magnetic induction element volume are less, simple to operate, and the consumption is less, can not consume a large amount of power, and the response accuracy is higher, can carry out the accurate positioning to the case.

In a preferred embodiment of the self-cleaning food processor, the trigger member is a trigger rod disposed on the valve element, the sensor members are a plurality of sensor switches disposed on the valve housing, the sensor switches respectively correspond to the respective communication positions, and the trigger rod moves relative to the valve element to the respective communication positions to trigger the sensor switches.

Through the mode that sets up the trigger lever at the case outer wall, the trigger lever can support and push inductive switch closure to the intercommunication position department along with the case removes to send position signal in order to confirm the position of case to the host computer. The trigger rod can be integrally formed with the valve core, the number of parts is reduced, the assembly is small, the structure is reliable, and the triggering stability is good.

In a preferred embodiment of the self-cleaning food processor, the drive can also drive the valve element into a blocking position, in which the valve element can close the liquid inlet, the liquid outlet and the water inlet.

The valve core further comprises a plugging position, and when the valve core moves to the plugging position, the valve core can plug the whole liquid discharge channel to seal the processing cavity for pulping.

In a preferred implementation manner of the self-cleaning food processor, the driving device comprises a driving motor and a screw rod connected with the driving motor, the valve core is provided with a threaded hole matched with the screw rod, and the driving motor drives the screw rod to rotate so as to drive the valve core to translate relative to the liquid drainage channel.

The driving motor is in transmission connection with the screw rod so as to convert the rotary motion of the motor into the horizontal movement of the valve core, and therefore the valve core moves to different positions relative to the liquid drainage channel.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural view of a food processor according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a food processor in accordance with an embodiment of the present invention.

Fig. 3 is an enlarged view a of fig. 2.

FIG. 4 is a schematic view of the valve cartridge of FIG. 3 in a first communication position.

Fig. 5 is a first schematic view of the valve cartridge of fig. 3 in a second communication position.

FIG. 6 is a second schematic view of the valve spool of FIG. 3 in a second communication position.

Fig. 7 is a schematic view of the valve cartridge of fig. 3 at the intake level.

Fig. 8 is a schematic structural diagram of a drain valve according to an embodiment of the present invention.

Fig. 9 is a first schematic structural diagram of a drain valve with a detection device according to an embodiment of the present invention.

Fig. 10 is a second schematic structural view of a drain valve with a detection device according to an embodiment of the present invention.

Description of the reference numerals:

1-a host;

2-processing the cup assembly; 21-processing a cavity; 22-a pulp discharge port;

3-a drain valve; 31-a drainage channel; 311-a liquid inlet; 312-a liquid outlet; 313-water inlet; 32-a valve core; 321-a water supply channel; 322-a threaded hole; 33-a drive device; 331-a drive motor; 332-a screw rod; 34-a valve housing; 35-liquid discharge pipe; 351-a first sealing rib; 352-a second sealing rib; 36-a valve mouth; 37-a detection device; 371 — the trigger; 3711-magnet; 3712-trigger bar; 372-a sensing member; 3721-magnetic induction element; 3722-inductive switch;

4-a water tank;

5-liquid receiving cup.

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 addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. For example, in the present invention, the side of the food processor facing the user is defined as "front" or "front side", and the opposite side is defined as "rear" or "rear side". This is set on the basis of the state of use of the food processor, as is known to the person skilled in the art.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. However, the direct connection means that the two bodies are not connected through a transition structure, but connected through a connection structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

First, the technical concept of the present invention will be explained. Aiming at the situation that the liquid discharge channel of the liquid discharge valve can not be cleaned independently in the existing food processor, the residue in the liquid discharge channel is difficult to remove. The utility model provides a can carry out abluent scheme of supplying water alone to the flowing back passageway, the flowing back valve of this application includes the flowing back passageway and locates the case of flowing back passageway, and the flowing back passageway is equipped with the water inlet of intercommunication water tank, through the position of adjustment case in the flowing back passageway, realizes that the flowing back passageway from the shutoff state to the conversion of intercommunication state, can wash the flowing back passageway when realizing the flowing back. The case has two intercommunication positions at least, and when the case removed to first intercommunication position, the inlet can communicate with the liquid outlet to realize the function of row's thick liquid or row washing waste water. When the case removed to the second intercommunication position, the water inlet can communicate with the liquid outlet, washs water and flows to flowing back the liquid discharge passage and discharge from the liquid outlet from the water inlet to wash the liquid discharge passage. The food preparation machine of this scheme can wash alone the flowing back passageway after row thick liquid or after wasing the process chamber, reduces probably to adhere to the residue in passageway inner wall, perhaps before row thick liquid, washes alone the flowing back passageway, can clear up the flowing back passageway that exposes in the external world, avoids probably having the thick liquid that pollutes newly makeed such as dust, promotes user's use and experiences.

The specific scheme is as follows:

the utility model provides a food preparation machine of self-cleaning, as shown in fig. 1-6, food preparation machine includes host computer 1, processing cup subassembly 2, flowing back valve 3 and water tank 4, and processing cup subassembly 2 includes cup and bowl cover, and cup and bowl cover surround and form the process chamber 21 that is used for slurrying, and process chamber 21 is equipped with row's thick liquid mouth 22, arranges thick liquid mouth 22 one side adjacent flowing back valve 3 that is provided with. The drain valve 3 is provided with a drain channel 31, the drain channel 31 is provided with a liquid inlet 311 and a liquid outlet 312, the liquid inlet 311 is communicated with the slurry outlet 22, and the drain valve 3 comprises a valve core 32 arranged on the drain channel 31 and a driving device 33 driving the valve core 32 to translate relative to the drain channel 31. The drainage channel 31 is also provided with a water inlet 313 connected with the water tank 4, the water inlet 313 and the water tank 4 are connected through a water pipe and a water pump, a silica gel water inlet nozzle is arranged at the water inlet 313, the water inlet nozzle is in a closed state under a non-water inlet state, water is pressurized and fed through the water pump, and water flow can flush the water inlet nozzle to supply water into the drainage channel 31. The driving device 33 can drive the valve core 32 to move to a first communicating position where the liquid inlet 311 can be communicated with the liquid outlet 312 to enable the liquid in the processing cavity 21 to flow out, and a second communicating position where the water inlet 313 is communicated with the liquid outlet 312 to enable the liquid discharge passage 31 to be cleaned.

In one embodiment, as shown in fig. 2-3, the driving device 33 can also drive the valve core 32 to move to a blocking position, in which the valve core 32 can block the liquid inlet 311, the liquid outlet 312 and the water inlet 313. When the valve core 32 moves to the blocking position, the valve core 32 can block the whole liquid discharge channel 31 to close the processing cavity 21 for pulping.

In one embodiment, as shown in fig. 2 and 7, the driving device 33 can also drive the valve core 32 to move to a water inlet level, at which the water inlet 313 and the liquid inlet 311 are communicated to clean the processing chamber 21 by feeding water into the processing chamber 21.

The technical scheme of the application is provided with a translational liquid discharge valve 3 structure, and the translational valve is simple and reliable in structure. The drain valve 3 includes a drain passage 31 and a valve element 32 provided in the drain passage 31, and the switching of the drain passage 31 from the blocked state to the connected state is realized by adjusting the position of the valve element 32 in the drain passage 31. When the valve core 32 moves to the first communication position, the liquid inlet 311 can be communicated with the liquid outlet 312, so that the function of discharging slurry or cleaning wastewater is realized. When the valve element 32 is moved to the second communication position, the water inlet 313 can communicate with the liquid outlet 312, and the washing water flows out from the water inlet 313 to the liquid discharge passage 31 and is discharged from the liquid outlet 312, thereby flushing the liquid discharge passage 31. The food preparation machine of this scheme can wash liquid discharge channel 31 alone after wasing processing chamber 21, reduces probably to adhere in the residue of passageway inner wall, perhaps before the thick liquid is arranged, washes liquid discharge channel 31 alone, can clear up liquid discharge channel 31 that exposes in the external world, avoids probably having the thick liquid that pollutes newly-made such as dust, promotes user's use and experiences. Among the prior art, generally pressurizeing the water supply through the water pump, thereby compare in adding water and erodeing flowing back fluid passage 31's scheme through adding water in to the process chamber 21 many times, because the washing water rivers impact force of outflow is less in the process chamber 21, the impact force of this scheme utilization rivers that have certain pressure erodees, and clean dynamics is great, and the cleaning performance is better. Moreover, the cleaning of the drainage channel 31 can be realized by only providing a small amount of water into the drainage channel 31, which is beneficial to saving water.

As shown in fig. 2 to 8, the drain valve 3 includes a valve housing 34, a drain pipe 35 disposed in the valve housing 34, and a valve core 32 disposed in the drain pipe 35, at least a part of the drain passage 31 is disposed in the drain pipe 35, an inlet of the drain pipe 35 is a liquid inlet 311, the valve core 32 and the drain pipe 35 are disposed coaxially, and the valve core 32 can move relatively along the drain pipe 35. The drain pipe 35 is a pipe which is horizontally arranged and has two open ends, and the valve core 32 extends into the drain pipe 35 from the front opening and horizontally moves in the drain pipe 35. The drain valve 3 is fixed at the slurry outlet 22 by arranging a valve shell 34, and is used for installing and supporting other valve body structures. The valve core 32 and the liquid discharge pipe 35 are coaxially arranged, the valve core 32 moves relatively along the axial direction, the movement reliability is high, sealing is facilitated, and liquid leakage is prevented.

As shown in fig. 1-4, in one embodiment the food processor further comprises a liquid receiving cup 5 arranged below the liquid discharge valve 3, the liquid discharge valve 3 further comprises a valve mouth 36 extending above the liquid receiving cup 5, a part of the liquid discharge channel 31 is arranged at the valve mouth 36, and the inner cavities of the liquid discharge pipe 35 and the valve mouth 36 together form the liquid discharge channel 31. The inlet of the drain pipe 35 is an inlet 311, and the outlet of the valve mouth 36 is an outlet 312. Set up below flowing back valve 3 and connect liquid cup 5 to connect flourishing thick liquid or washing waste water, be equipped with the valve mouth 36 that extends to and connect the liquid cup 5 top at the liquid valve that connects, utilize valve mouth 36 to compensate the longitudinal separation between flowing back valve 3 valve body and the liquid cup 5, when avoiding the thick liquid to leave, because of having the condition of certain impact force effect spill to table surface.

Further, as shown in fig. 4, the inner wall of the liquid discharge pipe 35 is provided with a sealing rib, and the sealing rib is arranged in a surrounding manner to form a plurality of sealing ring ribs in the radial direction. The sealing ribs comprise a first sealing rib 351 and a second sealing rib 352, the first sealing rib 351 is arranged at the liquid inlet 311 of the liquid discharge channel 31 so as to seal a gap between the valve core 32 and the inner wall of the liquid discharge pipe 35 when the valve core is in a closed position, and thus, slurry is prevented from entering the liquid discharge channel 31 along the gap. The second sealing rib 352 is disposed on the inner wall of the discharge pipe 35 on the front side with respect to the inlet of the valve nozzle 36, and is preferably disposed adjacent to the inlet of the valve nozzle 36 to prevent the liquid from entering the gap between the valve core 32 and the inner wall of the discharge pipe 35 when the liquid flows out along the valve nozzle 36. It will be understood, of course, that the sealing ribs may also comprise a third sealing rib, which is provided at the other opening of the drain pipe 35 with respect to the liquid inlet 311, so as to close the gap between the drain pipe 35 and the inner cavity of the valve housing 34, thereby preventing the slurry from entering the inner cavity of the valve housing 34.

As shown in fig. 2 to 7, the valve core 32 is provided with a water supply passage 321, in the first communication position, the water supply passage 321 is isolated from the liquid inlet 311 in a staggered manner, and in the second communication position, the water supply passage 321 can communicate the water inlet 313 and the liquid outlet 312. In one embodiment, the water supply channel 321 is vertically or obliquely arranged along the radial direction of the valve core 32, one end of the water supply channel 321 is connected with the water inlet 313, and the other end is communicated with the inlet of the valve nozzle 36 and can be communicated to the liquid outlet 312, so as to wash against the valve nozzle 36; alternatively, in one embodiment, the water supply channel 321 is bent inside the valve core 32, as shown in fig. 6, for example, the water supply channel 321 is in a "V" shape, the water inlet 313 is disposed at the inlet of the water supply channel 321 of the valve nozzle and connected to the water inlet 313, the outlet of the water supply channel 321 faces the upper side wall of the liquid discharge channel 31, and the water flows around and away from the upper side wall to flush the whole liquid discharge channel 31.

It will be understood by those skilled in the art that, in addition to providing the water supply passage 321 directly on the valve core 32, in one embodiment of the present application, the water supply passage 321 may be provided to be formed by different components, such as the valve core 32 forming the water supply passage 321 by fitting clearance with at least one of the valve housing 34 or the drain pipe 35, as required.

By arranging the water supply channel 321 on the valve core 32, at the second communication position, one end of the water supply channel 321 is communicated with the water inlet 313, the other end of the water supply channel 321 is communicated with the water outlet 312, the cleaning water flows along the water supply channel 321 rather than directly enters the liquid discharge channel 31, the impact direction of the water flow is changed by using the water supply channel 321, on one hand, the water flow is guided towards one side wall of the liquid discharge channel 31, the cleaning wastewater is difficult to fill the whole liquid discharge channel 31, so that the side wall of a part of the liquid discharge channel 31 cannot be washed, the residual residue splashed by the water flow is guided to the part of the side wall for targeted washing, and after the water flow is scattered at the part of the side wall, the side wall of the rest part can be effectively cleaned, on the other hand, when the direction of the water outlet 312 and the water inlet 313 of the liquid discharge channel 31 is deviated, capable of directing a flow of water toward exit port 312.

Preferably, the water supply passage 321 is disposed obliquely with respect to a radial direction of the valve core 32 such that an outlet of the water supply passage 321 faces one side wall of the valve nozzle 36. In the second communication position, the water supply passage 321 has one end communicating with the water inlet 313 and one end communicating with the inlet of the valve nozzle 36. In one embodiment, in order to shorten the flow distance of the slurry in the discharge valve 3, the upper end of the valve nozzle 36 is disposed at a position close to the slurry discharge port 22, and the valve nozzle 36 is disposed to be inclined toward the front side, and since the cleaning waste water is difficult to fill the whole valve nozzle 36, the slurry residue splashed on the front side wall of the valve nozzle 36 is difficult to clean, in one embodiment, as shown in fig. 7, the water supply passage 321 is disposed to be inclined forward with respect to the radial direction of the valve body 32, and the water flow is flushed toward the front side wall of the valve nozzle 36 at the inlet of the valve nozzle 36, and the water flow is scattered by the impact force, thereby cleaning the inner side wall of the valve nozzle 36 in its entirety, and the problem that the inner side wall of a part of the valve nozzle 36 cannot be cleaned when the water flow is flushed straight downward is avoided.

Further, in the manner of mounting valve nozzle 36 in drain valve 3, valve nozzle 36 may be provided in valve housing 34 or drain pipe 35. When valve mouth 36 and valve housing 34 are of one-piece construction, the installation between drain pipe 35 and valve housing 34 is facilitated. Preferably, as shown in FIGS. 2-8, valve nozzle 36 and drain 35 are of a one-piece construction. The valve housing 34 is provided with a through hole through which the valve nozzle 36 passes. The valve mouth 36 is provided to facilitate the discharge of liquid into the liquid receiving cup 5 to avoid liquid splashing. By integrally arranging the valve nozzle 36 and the liquid discharge pipe 35, the structure is simple and reliable, and the assembly effect is high. The joint between the valve nozzle 36 and the drain pipe 35 does not need to be provided with a sealing structure, and thus, the effect of preventing liquid leakage can be achieved.

As shown in fig. 2, 9-10, in one embodiment, drain valve 3 is provided with a detection device 37 for detecting the position of valve element 32, and detection device 37 includes a trigger 371 provided on either valve element 32 or valve housing 34, and a sensor 372 provided on the other. The detection position comprises a first communication position and a second communication position, and can also comprise a closed position or a water inlet level. It can be understood that, for example, in the closed position, a stopper rib is provided at the front end of the valve element 32, and when the stopper rib abuts against the front end opening of the drain pipe 35, the valve element 32 can completely block the drain passage 31, the valve element 32 cannot move further to the rear side, the stalling current of the driving motor 331 increases, and the stalling current is transmitted to the host 1 to control the driving motor 331 to stop rotating.

By providing the detection means 37 to detect the position of the valve element 32, the valve element 32 is accurately positioned to control the movement of the valve element 32 in the liquid discharge passage 31. The detecting device 37 includes a trigger 371 and a sensing element 372, and when the valve element 32 moves to a certain communication position, the sensing element 372 receives a trigger signal from the trigger 371 and transmits the trigger signal to the control board of the host 1, so as to control the driving device 33 to stop the movement of the valve element 32.

As shown in fig. 2 and 9, the trigger 371 is a magnet 3711 disposed on the valve element 32, the sensing element 372 is a plurality of magnetic induction elements 3721 disposed on the valve housing 34, and the magnetic induction elements 3721 may be hall elements. In one embodiment, there are three magnetic induction elements 3721 in the axial direction, from back to front, each magnetic induction element 3721 corresponds to the water inlet level, the second communication position, and the first communication position, and magnet 3711 moves with valve element 32 relative to valve housing 34 to each communication position to be able to activate magnetic induction element 3721.

By moving magnet 3711 disposed on valve element 32 to a different magnetic sensor 3721, magnetic sensor 3721 is triggered to send a position signal to host 1 to determine the position of valve element 32. Magnet 3711 and magnetic induction element 3721 are less, simple to operate, and the consumption is less, can not consume a large amount of power, and the response accuracy is higher, can carry out accurate positioning to case 32.

As shown in fig. 2 and 10, in one embodiment, the trigger 371 is a trigger rod 3712 provided on the valve core 32, and the sensing member 372 is a plurality of sensing switches 3722 provided on the valve housing 34. Inductive switch 3722 can select a micro switch, the inductive end of the micro switch faces to valve core 32, in one embodiment, there are three inductive switches 3722 along the axial direction, from back to front, each inductive switch 3722 corresponds to the water inlet level, the second communication position and the first communication position, each inductive switch 3722 corresponds to each communication position, and trigger rod 3712 moves to each communication position along with valve core 32 relatively to trigger inductive switch 3722.

By arranging the trigger rod 3712 on the outer wall of the valve element 32, the trigger rod 3712 moves to the communication position along with the valve element 32 and can push the inductive switch 3722 to close, so as to send a position signal to the host 1 to determine the position of the valve element 32. The triggering rod 3712 can be integrally formed with the valve core 32, so that the number of parts is reduced, the assembly is improved, the structure is reliable, and the triggering stability is good.

As shown in fig. 2, 3 and 8, the driving device 33 includes a driving motor 331, and a screw rod 332 connected to the driving motor 331, the valve core 32 is provided with a threaded hole 322 engaged with the screw rod 332, and the driving motor 331 drives the screw rod 332 to rotate so as to drive the valve core 32 to translate relative to the liquid discharge channel 31. The output end of the driving motor 331 is disposed toward the valve core 32, the lead screw 332 is connected to the output end, and the driving motor 331 is in transmission connection with the lead screw 332 to convert the rotational motion of the motor into horizontal movement of the valve core 32, so that the valve core 32 moves to different positions relative to the liquid discharge channel 31.

The food processor is used as follows:

in the shutdown state, the valve element 32 is in the closed position, and closes the liquid inlet 311, the liquid outlet 312, and the water inlet 313.

After starting up, firstly, the valve core 32 moves forwards to a second communication position, and the liquid discharge channel 31 can be simply flushed by pressurizing water supply by the water pump; then, the valve core 32 retreats backwards to a closed position, and the processing cavity 21 is closed for pulping; after the pulping is finished, the pulping device enters a pulp discharging state, the valve core 32 moves forwards to a first communication position to communicate the liquid inlet 311 with the liquid outlet 312, and therefore the pulp flows out along the liquid discharging channel 31; after the slurry is discharged, the valve core 32 moves forward to the second communication position to clean the liquid discharge channel 31, dry caking of residues in the liquid discharge channel 31 is avoided, then the valve core 32 is moved to the water inlet position to clean water in the processing cavity 21, after the processing cavity 21 is cleaned, the valve core 32 is moved to the second communication position again, and the liquid discharge channel 31 is independently washed.

The technical solution protected by the present invention is not limited to the above embodiments, and it should be noted that the technical solution of any one embodiment is combined with the technical solution of one or more other embodiments in the protection scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The self-cleaning food processing machine comprises a host machine, a processing cup assembly, a liquid discharge valve and a water tank, wherein the processing cup assembly is provided with a processing cavity for making slurry, the processing cavity is provided with a slurry discharging port, the liquid discharge valve is provided with a liquid discharge channel, the liquid discharge channel is provided with a liquid inlet and a liquid outlet, the self-cleaning food processing machine is characterized in that the liquid discharge valve comprises a valve core arranged on the liquid discharge channel and a driving device for driving the valve core to move relative to the liquid discharge channel, the liquid discharge channel is further provided with a water inlet connected with the water tank, the driving device can drive the valve core to move to a first communication position and a second communication position, the first communication position is used for communicating the liquid inlet with the liquid outlet, the second communication position is used for communicating the water inlet and cleaning the liquid discharge channel, and the cleaning water is discharged.

2. The self-cleaning food processor of claim 1, wherein the valve cartridge defines a water supply passage that is offset from the liquid inlet in the first communication position and is capable of communicating between the water inlet and the liquid outlet in the second communication position.

3. A self-cleaning food processor according to claim 2, further comprising a liquid receiving cup disposed below the liquid discharge valve, wherein the liquid discharge valve further comprises a valve nozzle extending above the liquid receiving cup, wherein a portion of the liquid discharge passage is disposed at the valve nozzle, and wherein the water supply passage is inclined with respect to a radial direction of the valve body such that an outlet of the water supply passage faces a side wall of the valve nozzle.

4. A self-cleaning food processor as defined in claim 2, wherein the drain valve further comprises a valve housing and a drain conduit disposed within the valve housing, the drain conduit defining at least part of the drain passage, the valve element being disposed coaxially with the drain conduit, the valve element being capable of relative movement along the drain conduit.

5. The self-cleaning food processor of claim 4, further comprising a drip cup disposed below the drip valve, the drip valve further comprising a valve nozzle extending above the drip cup, a portion of the drip channel being disposed at the valve nozzle, the valve nozzle and the drip tube being of unitary construction.

6. A self-cleaning food processor as defined in claim 2, wherein the drain valve further comprises a valve housing, the drain valve being provided with detection means for detecting the position of the valve element, the detection means comprising a trigger member provided on one of the valve element or the valve housing and a sensing member provided on the other of the valve element or the valve housing.

7. The self-cleaning food processor of claim 6 wherein the trigger member is a magnet disposed on the valve cartridge, the inductive member is a plurality of magnetic inductive elements disposed on the valve housing, the magnetic inductive elements correspond to the respective communication positions, and the magnet moves relative to the valve cartridge with respect to the valve housing to the respective communication positions to activate the magnetic inductive elements.

8. The self-cleaning food processor of claim 6, wherein the trigger member is a trigger rod disposed on the valve core, the sensor members are a plurality of sensor switches disposed on the valve housing, the sensor switches correspond to the respective communication positions, and the trigger rod moves with the valve core to the respective communication positions to trigger the sensor switches.

9. A self-cleaning food processor as defined in claim 1, wherein the drive means is further capable of driving the cartridge to move to a blocking position in which the cartridge closes the inlet, outlet and inlet ports.

10. The self-cleaning food processor of claim 1, wherein the drive mechanism comprises a drive motor and a lead screw coupled to the drive motor, the valve element having a threaded bore that engages the lead screw, the drive motor driving the lead screw to rotate to translate the valve element relative to the fluid discharge channel.