CN107997605B - Upper cover subassembly and cooking utensil - Google Patents

Abstract

The invention provides an upper cover assembly and a cooking utensil, wherein the upper cover assembly comprises an upper cover shell; the material cleaning device is used for cleaning materials and is arranged on the upper cover shell and provided with a sewage draining hole; the dirt collecting box is arranged on the upper cover shell and is positioned below the material cleaning device, and is provided with a dirt collecting port which is communicated with the dirt discharging hole to collect dirt after the material is cleaned; the dirt collecting box can be horizontally drawn, detached and assembled on the material cleaning device and/or the upper cover shell in a matched mode. According to the upper cover assembly provided by the invention, the dirt collecting box is arranged below the material cleaning device, dirt generated by the material cleaning device is directly discharged into the dirt collecting box under the action of self gravity, auxiliary devices such as a sewage valve and a pump are not required to be additionally arranged for sewage discharge, the structure is simple, the operation is easy, a pipeline is not required, the problem that materials are easy to adhere in a pipeline can be solved, and the production and manufacturing cost is reduced.

Description

Upper cover subassembly and cooking utensil

Technical Field

The invention relates to the field of household appliances, in particular to an upper cover assembly and a cooking appliance.

Background

In the related art, for cooking appliances such as rice cookers in the market, rice washing mainly adopts two modes of inner pot rice washing or outer rice washing and then transferring the rice into the inner pot through a pipeline, and at least the following technical defects exist:

(1) The main disadvantage of the rice washing mode of the inner pot is that the pollution discharge is difficult;

(2) And (5) transferring the washed rice into an inner pot through a pipeline.

The sewage discharge device adopting the two modes needs to be provided with a sewage valve or a pump for assisting in sewage discharge, has a complex structure and increases the production cost.

Disclosure of Invention

In order to solve at least one of the above problems, an object of the present invention is to provide a cover assembly.

It is still another object of the present invention to provide a cooking appliance.

In view of the above, according to one object of the present invention, there is provided an upper cover assembly including an upper cover housing; the material cleaning device is used for cleaning materials and is arranged on the upper cover shell and provided with a sewage draining hole; the dirt collecting box is arranged on the upper cover shell and is positioned below the material cleaning device, and is provided with a dirt collecting port which is communicated with the dirt discharging hole to collect dirt after the material is cleaned; the dirt collecting box can be horizontally drawn, detached and assembled on the material cleaning device and/or the upper cover shell in a matched mode.

According to the upper cover assembly provided by the invention, the dirt collecting box is arranged below the material cleaning device, dirt generated by the material cleaning device is directly discharged into the dirt collecting box under the action of self gravity, auxiliary devices such as a sewage valve and a pump are not required to be additionally arranged for sewage discharge, the structure is simple, the operation is easy, a pipeline is not required, the problem that materials are easy to adhere in a pipeline can be solved, and the production and manufacturing cost is reduced. Further, the dirt collecting box can be horizontally drawn and detached from the material cleaning device and/or the upper cover shell, so that the dirt collecting box is convenient to detach and clean, the sanitation of the product is guaranteed, bacteria generated by long-term use of the dirt collecting box is avoided, the sanitation of the cooking environment is influenced, the use experience of a user is improved, meanwhile, the dirt in the dirt collecting box is convenient to pour out, and the volume of the dirt collecting box is increased.

In addition, the upper cover assembly in the embodiment provided by the invention can also have the following additional technical characteristics:

in the above technical solution, preferably, the material cleaning device can be horizontally drawn, detached and assembled on the upper cover shell in a matching manner.

In the technical scheme, the detachable bottom of the material cleaning device is arranged on the upper cover shell, so that cleaning and maintenance of the material cleaning device are facilitated.

In the above technical solution, preferably, one of the dirt collecting box and the material cleaning device is provided with a slide way, and the other is provided with a sliding part which is matched with the slide way, so that the dirt collecting box can be horizontally drawn, detached and assembled on the material cleaning device in a matched manner; or the upper cover shell is provided with a containing space, and one side of the containing space is provided with an open notch, so that the dirt collecting box can be horizontally drawn, detached and separated or matched and sleeved in the containing space.

In this technical scheme, through setting up slide and sliding part as the equipment part of dirt collection box and material belt cleaning device, the equipment and the dismantlement of dirt collection box of being convenient for, the combination fault rate of slide and sliding part is low simultaneously, has reduced maintenance cost and manufacturing cost.

Or the dirt collecting box is assembled in the accommodating space, one side of the accommodating space is an open notch, the other side of the accommodating space is a closed, the dirt collecting box is horizontally pushed into the accommodating space, and meanwhile, the dirt collecting opening of the dirt collecting box is aligned with the drain outlet of the material cleaning device, so that an additional drain pipeline is not needed.

In the above technical solution, preferably, the other side of the accommodating space is a closed structure, and when the dirt collecting box is sleeved in the accommodating space, an end face of one side of the dirt collecting box abuts against the closed structure.

In the above technical scheme, preferably, a limit structure is arranged between the dirt collecting box and the material cleaning device, and the limit structure is used for controlling the dirt collecting box to be arranged at a designated position below the material cleaning device.

In this technical scheme, through being provided with limit structure between dirty box of collection and material belt cleaning device, can control dirty box of collection and install the assigned position department in material belt cleaning device below, make product stable in structure, improve safe performance.

In the above technical scheme, preferably, the limit structure comprises a limit groove and a limit rib matched with the limit groove, wherein one of the dirt collecting box and the upper cover shell is provided with the limit groove, the other one is provided with the limit rib, and the limit groove is matched with the limit rib so that the dirt collecting box is arranged at the appointed position of the upper cover shell.

In this technical scheme, carry out spacingly through spacing groove and spacing rib to the position of dirt collection box in the upper cover casing, simple structure, easy processing and operation promote user's use experience.

In the above technical solution, preferably, a sewage pipe inlet hole is provided on a sidewall of the sewage collecting box, which is located at the open cut of the accommodating space, for discharging sewage in the sewage collecting box.

In this technical scheme, set up the sewage pipe access hole on the lateral wall of album dirty box, discharge sewage through the sewage pipe, need not directly dismantle album dirty box again with sewage and pour, simplified the step of sewage emission, convenient operation has promoted user experience.

In any of the above embodiments, preferably, the material cleaning device includes: the plunger is provided with a cleaning cavity, and the cleaning cavity is provided with a feed inlet and a discharge outlet; the plunger sleeve is sleeved on the outer side of the plunger, the sewage draining hole is formed in the plunger sleeve, and the plunger sleeve is further provided with an inlet hole and a draining notch; and the driving device is connected with the plunger or the plunger sleeve, and drives one of the plunger or the plunger sleeve to move relative to the other, so that when the plunger is at a preset position, the inlet hole is communicated with the feed inlet to allow materials to enter the cleaning cavity, or the discharge hole is communicated with the discharge notch to allow the materials to be discharged, or the discharge hole is communicated with the sewage discharging hole to allow sewage to be discharged.

In the technical scheme, the plunger is provided with a cleaning cavity, the cleaning cavity is provided with a feed inlet and a discharge outlet, the plunger sleeve is sleeved on the outer side of the plunger and is provided with an inlet hole, a sewage draining hole and a draining notch, the driving device is connected with the plunger or the plunger sleeve, when the driving device drives one of the plunger or the plunger sleeve to move relative to the other, the inlet hole is communicated with the feed inlet, materials can enter the cleaning cavity, when the driving device drives one of the plunger or the plunger sleeve to move relative to the other, the discharge outlet can be discharged when the driving device drives one of the plunger or the plunger sleeve to move relative to the other, and sewage can be discharged when the driving device drives the one of the plunger or the plunger sleeve to communicate with the sewage draining hole. The material cleaning device provided by the invention adopts a piston structure to realize the processes of feeding, cleaning materials, discharging and the like, has a simple structure, is convenient to operate, can adopt gravity for discharging, does not need a sewage valve or a pump, can directly discharge the cleaned materials, does not need a pipeline, and can solve the problem that the materials are easy to adhere in a pipeline.

In the above technical solution, preferably, the preset position is one of a first preset position, a second preset position and a third preset position, the plunger sleeve is provided with a vent hole, and the feed inlet is communicated with the vent hole when the plunger is located at the first preset position, the second preset position and the third preset position; when the plunger is at a first preset position, the inlet hole is overlapped with the feed inlet, materials enter the cleaning cavity, when the plunger is at a second preset position, the discharge hole is overlapped with the sewage discharging hole, sewage is discharged, and when the plunger is at a third preset position, the discharge hole is communicated with the discharge notch, and the materials are discharged.

In this technical scheme, when driving the plunger to first preset position through drive arrangement, access hole and feed inlet coincidence, the material gets into in the washing cavity, when driving the plunger to second preset position through drive arrangement, discharge gate and blowdown hole coincidence, the filth is discharged into the dirt collection box, and when driving the plunger to the third preset position through drive arrangement, discharge gate and discharge incision intercommunication, the material is discharged to a plurality of processes such as feeding, washing material, blowdown and unloading have been realized.

In the above-described aspect, preferably, the driving device includes: a driving motor; and the transmission mechanism is connected with the driving motor and is abutted against the plunger or the plunger sleeve so as to drive the plunger and the plunger sleeve to move relatively.

In the technical scheme, a motor is adopted to drive the plunger or the plunger sleeve so as to enable the plunger or the plunger sleeve to move relatively, and when the plunger is at a preset position, the operations such as feeding, pollution discharge, discharging and the like can be realized.

In the above technical solution, preferably, the transmission mechanism includes a rack and pinion.

In the technical scheme, the rack can be arranged on the plunger or the plunger sleeve, and the motor drives the gear to rotate so as to drive the rack to do linear motion, thereby driving the plunger sleeve or the plunger to move.

In the above technical solution, preferably, the material cleaning device further includes: and the stirring device is communicated with the cleaning cavity and is used for stirring and cleaning materials in the cleaning cavity.

In this technical scheme, set up agitating unit in material belt cleaning device and stir the material that washs in the cavity, can make the washing of material more thoroughly.

In the above technical solution, preferably, the stirring device includes: the stirring motor is arranged outside the cleaning cavity and is provided with an output shaft; the stirring rod is arranged in the cleaning cavity; the cleaning cavity is provided with a contact hole, the stirring rod is connected to the output shaft through the contact hole, and the stirring motor drives the stirring rod to rotate to stir cleaning materials.

In the technical scheme, the mode of cleaning the materials adopts motor-driven stirring to clean, and the specific process can be described as follows, when a feed inlet on the cleaning cavity is opposite to an inlet hole on the plunger sleeve, liquid materials (such as water) and solid materials (such as rice) enter the cleaning cavity from the inlet hole, the stirring motor is started, and the materials roll under stirring of the stirring rod, so that the aim of cleaning the materials is fulfilled. After the cleaning action is completed, the plunger is pushed to move so that the cleaning cavity is opposite to the sewage discharging hole, sewage is discharged from the cleaning cavity to the sewage collecting box, the plunger is pushed to move after the sewage is discharged so that the discharge hole of the cleaning cavity is opposite to the discharge notch of the plunger sleeve, and the cleaned material is discharged.

In the above technical solution, preferably, the stirring device includes: the fan is arranged outside the cleaning cavity; one end of the air pipe is communicated with the fan; the cleaning cavity is provided with an air supply outlet, and the other end of the air pipe is communicated with the air supply outlet so as to convey air generated by the fan into the cleaning cavity.

In the technical scheme, the material can be cleaned by adopting wind power to drive water, and the specific process can be described as follows: when the feeding hole on the cleaning cavity is opposite to the inlet hole on the plunger sleeve, the air supply hole on the side face of the plunger supplies air, materials enter the cleaning cavity from the inlet hole, and water and the materials roll under the action of wind power, so that the aim of cleaning the materials is fulfilled. After the cleaning action is finished, air supply is stopped, the plunger is pushed to move so that the cleaning cavity is opposite to the sewage discharging hole, sewage is discharged from the cleaning cavity to the sewage collecting box, the plunger is pushed to move after the sewage is discharged so that the discharge hole of the cleaning cavity is opposite to the discharge notch of the plunger sleeve, and the cleaned material is discharged.

In the above technical scheme, preferably, the stirring device further comprises an impeller, the impeller is rotatably arranged at the air supply hole in the cleaning cavity, and the fan drives the impeller to rotate so as to stir the cleaning material.

In the technical scheme, an impeller is arranged at an air supply hole in the cleaning cavity, and the impeller is driven to rotate by wind generated by a fan to stir cleaning materials. The impeller can enable the materials to roll easily or the rolling degree is larger, and the cleaning effect is better.

In the above technical solution, preferably, the material cleaning device further includes a sealing member filled between the plunger and the plunger housing to seal the cleaning cavity.

In the technical scheme, the plunger of the material cleaning device moves linearly in the plunger sleeve, a sealing element is needed between the plunger and the plunger sleeve to ensure that water leakage is avoided, the plunger is filled with materials, if the gap between the plunger and the plunger sleeve is too large, granular materials can be clamped, and if the gap is small, the deformation part of the sealing element in motion can cause the plunger to be clamped as long as the deformation part of the sealing element is extruded into the gap, so that the size of the sealing element is proper, and the expected sealing effect is realized.

In the above technical solution, preferably, the sealing member is a sealing ring, and a mounting ring groove for accommodating the sealing member is provided outside the cleaning cavity.

In the technical scheme, a sealing ring with proper shape and specification is selected for sealing according to specific implementation conditions. When the sealing ring with the circular section is adopted, the section of the mounting groove can be arranged into a shape like a Chinese character kou, and spaces are reserved between the mounting groove and the sealing ring for compression deformation. The multistage sealing mode is simple, only a plurality of identical sealing rings are needed, a plurality of mounting grooves are correspondingly formed in the plunger, flanges are arranged on two sides of the plunger, the middle of the plunger is provided with a wavy or V-shaped sealing ring, the flanges on two sides of the sealing ring are used for positioning, the two sides of the sealing ring are lower than the plunger after being assembled to the plunger, the middle protruding part of the sealing ring is used for sealing, the wavy structure can form multistage sealing, and the plunger is extruded to shrink inwards.

In any of the above solutions, preferably, the inlet hole includes a liquid inlet hole and a feed hole, so that the liquid material and the solid material in the material enter the cleaning cavity through the liquid inlet hole and the feed hole, respectively.

In this technical scheme, liquid material and solid material can all get into the washing cavity through the access hole, just set up the entry that supplies the material to get into the washing cavity promptly, alternatively, also can set up feed liquor hole and feed port respectively, make liquid material and solid material get into the material respectively and wash the cavity, the entering of the material of being convenient for control, make liquid material and solid material keep apart, avoid different materials to mix in the possibility of unused material.

In the above technical solution, preferably, the plunger is of a regular shape or an irregular shape.

In this technical solution, the plunger can be designed to be of a regular or irregular shape, as required.

In the above technical solution, the plunger is preferably a cylindrical plunger or a prismatic plunger.

In the technical scheme, the cylindrical plunger and the prismatic plunger are easy to seal, easy to process and install, and can achieve space maximization under the conditions of limited length, height and width, and the requirements of structure miniaturization can be met.

In the above technical solution, preferably, the edge of the prismatic plunger is a chamfer or rounded structure.

In this technical scheme, set up the edge of prismatic plunger into chamfer or rounded structure, the sealing ring of being convenient for dress seals in the periphery of plunger on the one hand, and on the other hand also makes the product appearance pleasing to the eye, and uses safelyr, and the installation is more convenient.

In the above technical solution, preferably, the corresponding positions of the cylindrical plunger and the plunger sleeve are provided with cooperating anti-rotation structures.

In this technical scheme, when the shape of plunger is cylindrical, need set up anti-rotation structure to make feed inlet and the discharge gate of plunger can with the access hole, blowdown hole and the discharge incision intercommunication of plunger cover, guarantee the smoothness and smoothness of feeding, blowdown and discharge process.

In the above technical scheme, preferably, the anti-rotation structure is a limit groove and a limit protrusion matched with the limit groove, wherein one of the plunger and the plunger sleeve is provided with the limit groove, and the other is provided with the limit protrusion.

In this technical scheme, set up spacing groove and spacing arch and carry out spacingly, make feed inlet and the discharge gate of plunger can with the access hole, blowdown hole and the discharge incision intercommunication of plunger sleeve, realize feeding, blowdown and discharge process.

Yet another object of the present invention is to provide a cooking appliance including: the pan body and the upper cover assembly according to any one of the embodiments of the first aspect enclose a cooking chamber. The cooking utensil is provided with the upper cover assembly according to any one of the technical schemes, so that the cooking utensil has all the beneficial effects of the upper cover assembly, and the description is omitted.

In addition, the cooking appliance in the above embodiment provided by the invention may further have the following additional technical features:

in the above technical solution, preferably, the sewage treatment device further comprises a sewage pipe, wherein one end of the sewage pipe is connected with a sewage pipe access hole on the sewage collection box; the other end of the sewage pipe extends into the sewage tank, and sewage in the sewage collecting box is discharged into the sewage tank through the sewage pipe.

In this technical scheme, through setting up the sewage groove, directly guide the sewage in the dirt collecting box to the sewage groove in, increased the storage volume of sewage, simplified the culinary art process, the user need not often to dismantle dirt collecting box discharge sewage, has promoted user experience.

In the above technical solution, preferably, the cooking appliance is an electric cooker, an electric pressure cooker, an electric stewpot or an electric steamer.

In this technical scheme, the cooking utensil is preferably but not limited to an electric rice cooker, an electric pressure cooker, an electric stewpot or an electric steamer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 illustrates an assembled schematic view of a cap assembly according to an embodiment of the present invention;

FIG. 2 illustrates an exploded view of the upper cap assembly of the embodiment of FIG. 1;

FIG. 3 illustrates a perspective view of the upper cover assembly of the embodiment shown in FIG. 1;

FIG. 4 illustrates a perspective view of the dirt collection box of the embodiment illustrated in FIG. 2;

FIG. 5 shows a perspective view of a plunger of a material cleaning device according to one embodiment of the present invention;

FIG. 6 shows a perspective view of a plunger sleeve of a material cleaning device according to one embodiment of the present invention;

FIG. 7 shows a cross-sectional view of a material cleaning device in accordance with an embodiment of the present invention in a blowdown;

FIG. 8 shows an enlarged partial schematic view of the drain of area A of FIG. 7;

FIG. 9 shows a cross-sectional view of the cap assembly as fed in accordance with an embodiment of the present invention;

FIG. 10 illustrates an oblique view of the cap assembly as fed in accordance with an embodiment of the present invention;

FIG. 11 illustrates a cross-sectional view of the cover assembly during blowdown according to an embodiment of the invention;

FIG. 12 shows an enlarged schematic view of the drain of FIG. 11 at zone C;

FIG. 13 illustrates an oblique view of the upper cover assembly in accordance with an embodiment of the present invention when draining;

FIG. 14 shows a cross-sectional view of the cap assembly at discharge according to an embodiment of the present invention;

FIG. 15 shows an oblique view of the cap assembly at discharge according to an embodiment of the present invention;

FIG. 16 shows a cross-sectional view of an embodiment one of a stirring device of a material washing device according to an embodiment of the invention;

FIG. 17 shows a cross-sectional view of an embodiment II of a stirring device of a material washing device according to an embodiment of the invention;

FIG. 18 shows an exploded view of a cap assembly according to another embodiment of the present invention;

FIG. 19 shows an exploded perspective view of the cap assembly according to an embodiment of the present invention;

FIG. 20 shows a schematic view of a seal according to an embodiment of the invention;

FIG. 21 shows an enlarged partial schematic view of an embodiment one of the seal of section B of FIG. 20;

FIG. 22 shows an oblique view of the seal of FIG. 21;

FIG. 23 shows a cross-sectional view of the seal of FIG. 21;

FIG. 24 shows an enlarged partial schematic view of a second embodiment of the seal of section B of FIG. 20;

FIG. 25 shows an oblique view of the seal of FIG. 24;

FIG. 26 shows a side view of the seal of FIG. 24;

FIG. 27 shows a schematic view of an embodiment of the material cleaning apparatus of the present invention in which the plunger is a prismatic plunger;

FIG. 28 shows a schematic view of an embodiment of the material cleaning apparatus of the present invention in which the plunger is a cylindrical plunger;

figure 29 shows a schematic view of a cooking appliance according to an embodiment of the present invention,

the correspondence between the reference numerals and the component names in fig. 1 to 29 is:

1 upper cover assembly, 2 material cleaning device, 4 upper cover shell, 10 plunger, 12 cleaning cavity, 122 feed inlet, 124 discharge outlet, 126 air supply hole, 20 plunger sleeve, 202 inlet hole, 222 feed inlet hole, 224 feed inlet hole, 204 blow-down hole, 206 discharge notch, 208 vent hole, 22 first accommodation space, 220 second accommodation space, 30 stirring device, 302 stirring motor, 304 stirring rod, 306 fan, 308 air pipe, 40 driving device, 402 driving motor, 404 transmission mechanism, 406 rack and pinion, 50 dirt collecting box, 502 dirt receiving hole, 504 sewage inlet hole, 506 sewage pipe, 508 sewage groove, 60 sealing piece, 70 liquid source, 702 feed valve, 704 feed pipe, 80 storage device, 802 feed valve, 804 first fan, 902 air shuttle, 808 feed pipe, 90 pot body, cooking cavity.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

The upper cover assembly 1 and the cooking appliance according to some embodiments of the present application are described below with reference to fig. 1 to 29.

As shown in fig. 1 to 6, the present application provides an upper cover assembly 1 including an upper cover housing 4; the material cleaning device 2 is used for cleaning materials, the material cleaning device 2 is arranged on the upper cover shell 4, and the material cleaning device 2 is provided with a drain hole 204; the dirt collecting box 50 is arranged on the upper cover shell 4 and is positioned below the material cleaning device 2, the dirt collecting box 50 is provided with a dirt receiving port 502, and the dirt receiving port 502 is communicated with the dirt discharging hole 204 to collect dirt after cleaning the material; wherein, the dirt collecting box 50 can be horizontally drawn, detached or assembled on the material cleaning device 2 and/or the upper cover shell 4 in a matching way.

According to the upper cover assembly 1 provided by the invention, as shown in fig. 7, the dirt collecting box 50 is arranged below the material cleaning device 2, dirt generated by the material cleaning device 2 is directly discharged into the dirt collecting box 50 under the action of self gravity, auxiliary devices such as a sewage valve and a pump are not required to be additionally arranged for sewage discharge, the structure is simple, the operation is easy, a pipeline is not required, the problem that materials are easy to adhere in a pipeline can be solved, and the production and manufacturing cost is reduced. Further, the dirt collecting box 50 can be horizontally drawn and detached to be separated from the material cleaning device 2 and/or the upper cover shell 4, so that the dirt collecting box 50 is convenient to detach and clean, the use sanitation of products is guaranteed, bacteria generated by long-term use of the dirt collecting box 50 are avoided, the cooking environment sanitation is influenced, the use experience of a user is improved, meanwhile, dirt in the dirt collecting box 50 is convenient to pour out, and the volume of the dirt collecting box 50 is increased.

In one embodiment of the present invention, preferably, as shown in fig. 2, the material washing device 2 can be horizontally drawn to be detached or assembled in a fitting manner on the upper cover housing 4.

In this embodiment, the detachable bottom of the material cleaning device 2 is arranged on the upper cover shell 4, so that cleaning and maintenance of the material cleaning device are facilitated.

In one embodiment of the present invention, preferably, one of the dirt collecting box 50 and the material cleaning device 2 is provided with a slide way, and the other is provided with a sliding part matched with the slide way, so that the dirt collecting box 50 can be horizontally drawn, detached and assembled on the material cleaning device 2 in a matched manner; as shown in fig. 3, or the upper cover assembly 1 is provided with a containing space, one side of the containing space is provided with an open notch, so that the dirt collecting box 50 can be horizontally drawn, detached and matched or sleeved in the containing space.

In this embodiment, the second receiving space 220 is formed on the upper cover assembly, and the soil collecting box is disposed in the second receiving space 220. By arranging the slide way and the sliding part in the second accommodating space 220 as assembly parts of the dirt collecting box 50 and the material cleaning device 2, the dirt collecting box 50 is convenient to assemble and disassemble, the dirt collecting box 50 is convenient to clean and replace, meanwhile, the combined failure rate of the slide way and the sliding part is low, and the maintenance cost and the production cost are reduced.

In one embodiment of the present invention, preferably, the other side of the accommodating space is a closed structure, and when the dirt collecting box 50 is sleeved in the accommodating space, one side end surface of the dirt collecting box 50 abuts against the closed structure.

In one embodiment of the present invention, preferably, as shown in fig. 3 and 4, a limiting structure is provided between the soil collecting box 50 and the material washing device 2, and the limiting structure is used to control the soil collecting box 50 to be installed at a designated position under the material washing device 2.

In this embodiment, by providing a limiting structure between the dirt collecting box 50 and the material cleaning device 2, the dirt collecting box 50 can be controlled to be mounted at a designated position below the material cleaning device 2, so that the product structure is stable, and the safety use performance is improved.

In one embodiment of the present invention, preferably, as shown in fig. 3 and 4, the limiting structure includes a limiting groove and a limiting rib matched with the limiting groove, one of the dirt collecting box 50 and the upper cover housing 4 is provided with the limiting groove, and the other is provided with the limiting rib, and the limiting groove is matched with the limiting rib so that the dirt collecting box 50 is mounted at a designated position of the upper cover housing 4.

In this embodiment, the position of the dirt collecting box 50 in the upper cover shell 4 is limited by the limiting groove and the limiting rib, so that the dirt collecting box is simple in structure, easy to process and operate, and the use experience of a user is improved.

In one embodiment of the present invention, it is preferable that a sewage pipe inlet hole 504 is provided on a sidewall of the sump housing 50, which is located at an open cut of the receiving space, as shown in fig. 4, for discharging sewage inside the sump housing 50.

In this embodiment, the sidewall of the sewage collecting box 50 is provided with the sewage pipe 506 access hole 504, sewage is discharged through the sewage pipe 506, and the sewage is not required to be directly detached from the sewage collecting box 50 and then poured, so that the sewage discharging step is simplified, the operation is convenient, and the user experience is improved.

In one embodiment of the present invention, preferably, as shown in fig. 5 to 15, the material cleaning apparatus 2 includes: the plunger 10 is provided with a cleaning cavity 12, and the cleaning cavity 12 is provided with a feed port 122 and a discharge port 124; the plunger sleeve 20 is sleeved on the outer side of the plunger 10, the sewage drain hole 204 is arranged on the plunger sleeve 20, and the plunger sleeve 20 is also provided with an inlet hole 202 and a drain notch 206; and the driving device 40 is connected with the plunger 10 or the plunger sleeve 20, and the driving device 40 drives one of the plunger 10 or the plunger sleeve 20 to move relative to the other, so that when the plunger 10 is in a preset position, the inlet hole 202 is communicated with the inlet hole 122 for allowing materials to enter the cleaning cavity 12, or the outlet hole 124 is communicated with the discharge notch 206 for allowing materials to be discharged, or the outlet hole 124 is communicated with the sewage draining hole 204 for discharging sewage.

In this embodiment, as shown in fig. 5 and 6, the plunger 10 has a cleaning chamber 12, and the cleaning chamber 12 is provided with a feed port 122 and a discharge port 124, the plunger housing 20 is sleeved outside the plunger 10, and the plunger housing 20 is provided with an inlet port 202, a drain port 204, and a discharge slit 206, the driving device 40 is connected to the plunger 10 or the plunger housing 20, when the driving device 40 drives one of the plunger 10 or the plunger housing 20 to move relative to the other so that the plunger 10 is in a preset position, the inlet port 202 communicates with the feed port 122, so that material can enter the cleaning chamber 12, when the driving device 40 drives one of the plunger 10 or the plunger housing 20 to move relative to the other so that the discharge port 124 communicates with the discharge slit 206, as shown in fig. 7 and 8, when the driving device 40 drives one of the plunger 10 or the plunger housing 20 to move relative to the other so that the discharge port 124 communicates with the drain port 204, so that the material can be discharged. The material cleaning device 2 provided by the invention adopts a piston type structure to realize the processes of feeding, cleaning materials, discharging and the like, has a simple structure, is convenient to operate, can adopt gravity for discharging, does not need a sewage valve or a pump, can directly discharge the cleaned materials, does not need a pipeline, and can solve the problem that the materials are easy to adhere in a pipeline.

In one embodiment of the present invention, preferably, as shown in fig. 9 to 15, the preset position is one of a first preset position, a second preset position, and a third preset position, the plunger housing 20 is provided with a vent hole 208, and the feed port 122 communicates with the vent hole 208 when the plunger 10 is in the first preset position, the second preset position, and the third preset position; wherein, as shown in fig. 9 and 10, when the plunger 10 is at the first preset position, the inlet hole 202 and the inlet hole 122 are overlapped, the material enters the cleaning cavity 12, as shown in fig. 11 to 13, when the plunger 10 is at the second preset position, the outlet hole 124 is overlapped with the drain hole 204, the dirt is discharged, as shown in fig. 14 and 15, when the plunger 10 is at the third preset position, the outlet hole 124 is communicated with the discharge notch 206, and the material is discharged.

In this embodiment, when the plunger 10 is driven to the first preset position by the driving device 40, the inlet hole 202 and the inlet hole 122 are overlapped, the material enters the cleaning cavity 12, when the plunger 10 is driven to the second preset position by the driving device 40, the outlet hole 124 is overlapped with the drain hole 204, the dirt is discharged into the dirt collecting box 50, and when the plunger 10 is driven to the third preset position by the driving device 40, the outlet hole 124 is communicated with the discharge notch 206, and the material is discharged, so that a plurality of processes such as feeding, cleaning, draining, discharging and the like are realized.

In one embodiment of the present invention, preferably, as shown in fig. 9, the driving device 40 includes: a drive motor 402; and a transmission mechanism 404 connected with the driving motor 402 and abutting against the plunger 10 or the plunger sleeve 20 to drive the plunger 10 and the plunger sleeve 20 to move relatively.

In this embodiment, the plunger 10 or the plunger sleeve 20 is driven by a motor to move relatively, and when the plunger 10 is at a preset position, operations such as feeding, discharging and discharging can be realized.

In one embodiment of the present invention, preferably, the transmission 404 includes a rack and pinion 406, as shown in FIG. 9.

In this embodiment, the rack may be mounted on the plunger 10 or the plunger sleeve 20, and the motor drives the gear to rotate to move the rack linearly, thereby moving the plunger sleeve 20 or the plunger 10.

In one embodiment of the present invention, preferably, the material washing apparatus 2 further includes: and the stirring device 30 is communicated with the cleaning cavity 12 and is used for stirring and cleaning materials in the cleaning cavity 12.

In this embodiment, the stirring device 30 is arranged in the material cleaning device 2 to stir and clean the material in the cleaning cavity 12, so that the material can be cleaned more thoroughly.

In one embodiment of the present invention, preferably, as shown in fig. 16, the stirring device 30 includes a stirring motor 302, and the stirring motor 302 is disposed outside the cleaning chamber 12 and has an output shaft; and a stirring rod 304, wherein the stirring rod 304 is arranged in the cleaning cavity 12; wherein, wash cavity 12 has the through-hole, and stirring rod 304 is connected to the output shaft through the through-hole, and stirring motor 302 drives stirring rod 304 rotation to stir the washing material.

In this embodiment, the material is cleaned by motor-driven stirring, and the specific process can be described as follows, when the inlet 122 of the cleaning chamber 12 is opposite to the inlet hole of the plunger 10, the liquid material (e.g. water) and the solid material (e.g. rice) enter the cleaning chamber 12 from the inlet hole 202, the stirring motor 302 is started, and the material rolls under stirring of the stirring rod 304, so as to achieve the purpose of cleaning the material. After the cleaning action is completed, the plunger 10 is pushed to move so that the cleaning cavity 12 is opposite to the sewage draining hole 204, sewage is drained out of the cleaning cavity 12, the plunger 10 is pushed to move after the sewage is drained, so that the discharge hole 124 of the cleaning cavity 12 is opposite to the discharge notch 206 of the plunger 10 sleeve, and the cleaned material is drained.

In one embodiment of the present invention, preferably, as shown in fig. 17, the stirring device 30 includes a blower 306, and the blower 306 is disposed outside the cleaning chamber 12; and an air duct 308, wherein one end of the air duct 308 is communicated with the fan 306; wherein, the cleaning chamber 12 is provided with an air supply hole 126, and the other end of the air pipe 308 is communicated with the air supply hole 126 to send the air generated by the fan 306 into the cleaning chamber 12.

In this embodiment, the material may also be cleaned by wind driven water, and the specific process may be described as follows: when the feeding hole 122 on the cleaning cavity 12 is opposite to the inlet hole 202 on the plunger sleeve 20, the air supply hole 126 on the side surface of the plunger 10 is used for feeding materials into the cleaning cavity 12 from the inlet hole 202, and water and the materials roll under the action of wind force, so that the purpose of cleaning the materials is achieved. After the cleaning action is completed, air supply is stopped, the plunger 10 is pushed to move so that the cleaning cavity 12 is opposite to the sewage draining hole 204, sewage is drained out of the cleaning cavity 12, the plunger 10 is pushed to move after the sewage is drained so that the discharge hole 124 of the cleaning cavity 12 is opposite to the discharge notch 206 of the plunger sleeve 20, and the cleaned material is drained.

In one embodiment of the present invention, the stirring device 30 preferably further comprises an impeller rotatably disposed on the stirring rod 304 or at the air supply hole 126 inside the cleaning chamber 12, and the stirring rod 304 or the fan 306 drives the impeller to rotate to stir the cleaning material.

In this embodiment, on one hand, an impeller is disposed at the end of the stirring rod 304, and the motor drives the stirring rod 304 to rotate so as to drive the impeller to rotate; in one aspect, impellers are provided in the cleaning chamber 12 at the air supply openings 126 to agitate the cleaning material by the rotation of the impellers driven by the air generated by the fan 306. Above two kinds of structures can make the material roll easily or the degree of rolling is bigger through the impeller, and the cleaning performance is better.

In one embodiment of the present invention, preferably, as shown in fig. 18 to 26, a sealing member 60 is further included to be filled between the plunger 10 and the plunger housing 20 to seal the washing chamber 12.

In this embodiment, the plunger 10 of the material cleaning device 2 moves linearly in the plunger 20 sleeve, and a sealing member 60 is required between the plunger 10 and the sleeve to ensure that no water leakage occurs, because the plunger 10 contains material, if the gap between the plunger 10 and the plunger sleeve 20 is too large, granular material is blocked, if the gap is small, the deformed portion of the moving sealing member 60 is only a very small portion to squeeze into the gap, so that the plunger 10 is blocked, and therefore, the size of the sealing member 60 is selected to be suitable to achieve the desired sealing effect.

In one embodiment of the present invention, preferably, as shown in fig. 18 and 19, the seal 60 is a sealing ring, and the outside of the cleaning chamber 12 is provided with a mounting ring groove accommodating the seal 60.

In this embodiment, as shown in fig. 21 to 26, a gasket of an appropriate shape and size is selected for sealing according to the specific implementation. When the sealing ring with the circular section is adopted, the section of the mounting groove can be arranged into a shape like a Chinese character kou, and spaces are reserved between the mounting groove and the sealing ring for compression deformation. The multistage sealing mode is simple, only a plurality of identical sealing rings are needed, a plurality of mounting grooves are correspondingly formed in the plunger 10, flanges are arranged on two sides, the middle of each sealing ring is a wavy or V-shaped sealing ring, the flanges on two sides of each sealing ring are used for positioning, the two sides of each sealing ring are assembled on the plunger 10 and are lower than the plunger 10, the middle protruding part is used for sealing, the wavy structure can form multistage sealing, and the sealing rings can be extruded to shrink inwards.

In one embodiment of the present invention, the inlet aperture 202 preferably includes a liquid inlet aperture 222 and a feed aperture 224, as shown in fig. 29, for liquid and solid materials in the material to enter the cleaning chamber 12 through the liquid inlet aperture 222 and the feed aperture 224, respectively.

In this embodiment, both the liquid material and the solid material may enter the cleaning chamber 12 through the inlet hole 202, i.e. only one inlet for the material into the cleaning chamber 12 is provided, alternatively, the liquid inlet 222 and the inlet 224 may be provided separately, so that the liquid material and the solid material enter the material cleaning chamber 12 separately, which is convenient for controlling the entry of the materials, isolating the liquid material and the solid material, and avoiding the possibility of mixing different materials into the unused materials.

In one embodiment of the present invention, the plunger 10 is preferably regular or irregular in shape.

In this embodiment, the plunger 10 may be designed to be of a regular or irregular shape, as desired.

In one embodiment of the present invention, preferably, as shown in fig. 27 and 28, the plunger 10 is a cylindrical plunger 10 or a prismatic plunger 10.

In this embodiment, the cylindrical plunger 10 and the prismatic plunger 10 are easily sealed, have been easily processed and installed, and can achieve space maximization under the condition of a defined length, height and width, more meeting the demand for miniaturization of the structure.

In one embodiment of the present invention, the edges of the prismatic plunger 10 are preferably chamfered or rounded as shown in fig. 27.

In this embodiment, the edge of the prismatic plunger 10 is set to be in a chamfer or rounded structure, so that the sealing ring is sleeved on the periphery of the plunger 10 to seal, and the appearance of the product is attractive, the use is safer, and the installation is more convenient.

In one embodiment of the present invention, preferably, the corresponding positions of the cylindrical plunger 10 and plunger sleeve 20 are provided with cooperating anti-rotation structures, as shown in fig. 28.

In this embodiment, when the shape of the plunger 10 is a cylinder, an anti-rotation structure is required to enable the inlet 122 and the outlet 124 of the plunger 10 to communicate with the inlet 202, the drain 204 and the drain 206 of the plunger housing 20, so as to ensure the smoothness of the feeding, draining and discharging processes.

In one embodiment of the present invention, the anti-rotation structure is preferably a limit groove and a limit protrusion matched with the limit groove, wherein one of the plunger 10 and the plunger sleeve 20 is provided with the limit groove, and the other is provided with the limit protrusion.

In this embodiment, the limiting grooves and the limiting protrusions are provided to limit, so that the feed port 122 and the discharge port 124 of the plunger 10 can be communicated with the inlet hole 202, the drain hole 204 and the drain notch 206 of the sleeve of the plunger 10, and the feeding, draining and discharging processes are realized.

Yet another embodiment of the present invention provides a cooking appliance including: the pan body and the upper cover assembly 1 according to any of the embodiments of the first aspect described above, the pan body 90 and the upper cover assembly 1 enclose a composite cooking chamber 902. The cooking appliance is provided with the upper cover assembly 1 according to any one of the embodiments, so that the cooking appliance has all the beneficial effects of the upper cover assembly 1, and will not be described herein.

In one embodiment of the present invention, as shown in fig. 29, preferably, the sewage treatment apparatus further comprises a sewage pipe 506, wherein one end of the sewage pipe 506 is connected with the sewage pipe 506 access hole 504 on the sewage collecting box 50; a sewage tank 508, and the other end of the sewage pipe 506 extends into the sewage tank 508, and sewage in the sewage collecting tank 50 is discharged into the sewage tank 508 through the sewage pipe 506.

In this embodiment, by providing the sump 508, the sewage in the sump 50 is directly guided into the sump 508, thereby increasing the volume of the sewage, simplifying the cooking process, and improving the user experience without frequently disassembling the sump 50 to drain the sewage.

In one embodiment of the present invention, preferably, the cooking appliance is an electric rice cooker, an electric pressure cooker, an electric stewpot or an electric steamer.

In this embodiment, the cooking appliance is preferably, but not limited to, an electric rice cooker, an electric pressure cooker, an electric stewpot, or an electric steamer.

Specifically, as shown in fig. 29, the cooking appliance according to the embodiment of the present invention includes: the cooking chamber 902, the rice barrel (storage device 80), the rice valve (feed valve 802), the first fan 804, the air shuttle 806 and the air pipe (feed pipeline 808) are connected to the rice inlet 224 of the plunger sleeve 20 to form a rice feeding system of the automatic rice cooker; a tap (liquid source 70), a water inlet pipe 704, a water inlet valve 702 connected to the water inlet 222 of the plunger sleeve 20, and forming a water inlet system of the automatic rice cooker; the second fan 306 and the air pipe 308 are connected to the air inlet 126 of the plunger 10, and form a rice washing system of the automatic rice cooker together with the rice washing cavity (the washing cavity 12). The rice washing cavity (the washing cavity 12), the drain hole 204 at the lower part of the plunger sleeve 20, the sewage collecting box 50, the sewage pipe 506 and the sewage tank 508 form a sewage drainage system of the automatic rice cooker. The rice washing cavity (washing cavity 12), the plunger sleeve 20 is provided with a rice discharging notch 206, the material washing device 2 is provided with a rice discharging hole, and the inner pot (pot body) of the rice cooker forms a rice discharging and water discharging system of the automatic rice cooker.

As shown in fig. 9 and 10, when the plunger 10 is in the position (i.e., the first preset position), the plunger 10 and the plunger sleeve 20 form a rice washing chamber (washing chamber 12). Starting a stirring motor 302, and rolling the materials under stirring of a stirring rod 304 to achieve the aim of cleaning the materials; or wind enters the rice washing cavity (cleaning cavity 12) through the air supply hole 126 on the side surface of the plunger 10, and rice and water enter the cavity through the rice inlet (feeding hole 224) on the sleeve of the plunger 10 and the water inlet (liquid inlet 222). Wind drives the water and the rice to roll over, thereby achieving the purpose of washing the rice.

As shown in fig. 11 and 13, when the plunger 10 is in the position (i.e., the second preset position), the hole under the plunger 10 coincides with the drain hole 204 under the plunger sleeve 20, and the sewage is discharged from the drain hole 204 to the sewage collection box 50, so as to achieve the purpose of sewage disposal.

As shown in fig. 14 and 15, when the plunger 10 is in the position (i.e., the third preset position), the hole under the plunger 10 coincides with the slit under the plunger sleeve 20, and the rice and water come out of the slit and enter the inner pot (pot body) of the rice cooker, thereby achieving the purpose of discharging the rice and water into the inner pot (pot body) of the rice cooker.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, 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 present invention. In this specification, schematic representations of the above terms do not necessarily 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.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (25)

1. An upper cover assembly, comprising:

an upper cover housing;

the material cleaning device is used for cleaning materials and is arranged on the upper cover shell and provided with a sewage draining hole;

the dirt collecting box is arranged on the upper cover shell and is positioned below the material cleaning device, and is provided with a dirt collecting port which is communicated with the dirt discharging hole to collect dirt after the material is cleaned;

wherein the dirt collecting box can be horizontally drawn, detached and assembled on the material cleaning device and/or the upper cover shell in a matching way;

the material cleaning device includes:

the plunger is provided with a cleaning cavity, and the cleaning cavity is provided with a feed inlet and a discharge outlet;

the plunger sleeve is sleeved on the outer side of the plunger, the sewage draining hole is formed in the plunger sleeve, and the plunger sleeve is further provided with an inlet hole and a draining notch; and

the driving device is connected with the plunger or the plunger sleeve, and drives one of the plunger or the plunger sleeve to move relative to the other, so that when the plunger is positioned at a preset position, the inlet hole is communicated with the feed port to enable materials to enter the cleaning cavity, or the discharge port is communicated with the sewage draining hole to enable sewage to be discharged, or the discharge port is communicated with the discharging notch to enable the materials to be discharged.

2. The cover assembly of claim 1, wherein the cover assembly comprises a cover,

the material cleaning device can be horizontally drawn, detached and assembled on the upper cover shell in a matching way.

3. The cover assembly of claim 2, wherein,

one of the dirt collecting box and the material cleaning device is provided with a slideway, and the other is provided with a sliding part which is matched with the slideway, so that the dirt collecting box can be horizontally drawn, detached and assembled on the material cleaning device in a matched manner; or (b)

The upper cover shell is provided with a containing space, and one side of the containing space is provided with an open notch, so that the dirt collecting box can be horizontally drawn, detached and separated or matched and sleeved in the containing space.

4. The cover assembly of claim 3, wherein,

the other side of the accommodating space is a closed structure, and when the dirt collecting box is sleeved in the accommodating space, one side end face of the dirt collecting box abuts against the closed structure.

5. The cover assembly of claim 1, wherein the cover assembly comprises a cover,

a limiting structure is arranged between the dirt collecting box and the upper cover shell and used for controlling the dirt collecting box to be arranged at a designated position below the upper cover shell.

6. The cover assembly of claim 5, wherein the cover assembly comprises a cover,

the limiting structure comprises a limiting groove and limiting ribs matched with the limiting groove, wherein one of the dirt collecting box and the upper cover shell is provided with the limiting groove, the other one of the dirt collecting box and the upper cover shell is provided with the limiting ribs, and the limiting groove is matched with the limiting ribs so that the dirt collecting box is arranged at a designated position of the upper cover shell.

7. The cover assembly of claim 6, wherein the cover assembly comprises a cover,

the upper cover shell is provided with an accommodating space, and one side of the accommodating space is provided with an open notch so that the dirt collecting box can be horizontally drawn, detached and separated or matched and sleeved in the accommodating space;

the sewage collecting box is provided with a sewage pipe inlet hole on the side wall of the open notch of the accommodating space, and the sewage pipe inlet hole is used for discharging sewage in the sewage collecting box.

8. The lid assembly of any one of claims 1 to 7,

the preset position is one of a first preset position, a second preset position and a third preset position, the plunger sleeve is provided with a vent hole, and the feeding port is communicated with the vent hole when the plunger is positioned at the first preset position, the second preset position and the third preset position;

When the plunger is positioned at the first preset position, the inlet hole is overlapped with the feeding hole, the material enters the cleaning cavity, when the plunger is positioned at the second preset position, the discharging hole is overlapped with the sewage discharging hole, the sewage is discharged, and when the plunger is positioned at the third preset position, the discharging hole is communicated with the discharging notch, and the material is discharged.

9. The cover assembly of claim 8, wherein the driving means comprises:

a driving motor; and

the transmission mechanism is connected with the driving motor and is abutted to the plunger or the plunger sleeve so as to drive the plunger and the plunger sleeve to move relatively.

10. The cover assembly of claim 9, wherein the cover assembly comprises a cover,

the transmission mechanism comprises a gear and a rack.

11. The cover assembly of any one of claims 1 to 7, wherein the material cleaning apparatus further comprises:

and the stirring device is communicated with the cleaning cavity and is used for stirring and cleaning the materials in the cleaning cavity.

12. The cover assembly of claim 11, wherein the stirring device comprises:

The stirring motor is arranged outside the cleaning cavity and is provided with an output shaft; and

the stirring rod is arranged in the cleaning cavity;

the cleaning cavity is provided with a through hole, the stirring rod is connected to the output shaft through the through hole, and the stirring motor drives the stirring rod to rotate to stir and clean the materials.

13. The cover assembly of claim 11, wherein the stirring device comprises:

the fan is arranged outside the cleaning cavity; and

one end of the air pipe is communicated with the fan;

the cleaning cavity is provided with an air supply hole, and the other end of the air pipe is communicated with the air supply hole so as to convey air generated by the fan into the cleaning cavity.

14. The cover assembly of claim 13, wherein the stirring device further comprises:

the impeller is rotatably arranged at the air supply hole in the cleaning cavity, and the fan drives the impeller to rotate so as to stir and clean the materials.

15. The cover assembly of any one of claims 1 to 7, wherein the material cleaning apparatus further comprises:

And the sealing piece is filled between the plunger and the plunger sleeve to seal the cleaning cavity.

16. The cover assembly of claim 15, wherein,

the sealing element is a sealing ring, and an installation ring groove for accommodating the sealing element is arranged outside the cleaning cavity.

17. The lid assembly of any one of claims 1 to 7,

the inlet hole comprises a liquid inlet hole and a feeding hole, so that liquid materials and solid materials in the materials can enter the cleaning cavity through the liquid inlet hole and the feeding hole respectively.

18. The lid assembly of any one of claims 1 to 7,

the plunger is regular or irregular in shape.

19. The lid assembly of any one of claims 1 to 7,

the plunger is a cylindrical plunger or a prismatic plunger.

20. The lid assembly of claim 19, wherein the lid assembly comprises,

the edge of the prismatic plunger is in a chamfering or rounding structure.

21. The lid assembly of claim 19, wherein the lid assembly comprises,

the corresponding positions of the cylindrical plunger and the plunger sleeve are provided with matched anti-rotation structures.

22. The lid assembly of claim 21, wherein the lid assembly comprises,

the anti-rotation structure is a limit groove and limit protrusions matched with the limit groove, one of the plunger and the plunger sleeve is provided with the limit groove, and the other one of the plunger and the plunger sleeve is provided with the limit protrusions.

23. A cooking appliance, comprising:

a pot body; a kind of electronic device with high-pressure air-conditioning system

A cap assembly as claimed in any one of claims 1 to 22.

24. The cooking appliance of claim 23, further comprising:

one end of the sewage pipe is connected with a sewage pipe access hole on the sewage collecting box;

the sewage tank, the sewage pipe other end stretches into in the sewage tank, sewage in the dirt collecting box is discharged into the sewage tank through the sewage pipe.

25. The cooking appliance of claim 23, wherein the cooking appliance further comprises a cooking chamber,

the cooking utensil is one of an electric cooker, an electric pressure cooker, an electric stewpot or an electric steamer.