CN114568950B - Drain component and electric cooker - Google Patents

Abstract

The invention relates to the technical field of household appliances, in particular to a liquid draining assembly and an electric cooker. The liquid draining assembly comprises a driving mechanism and a heating mechanism, wherein one end of the driving mechanism is connected with the flow guiding pipe or the valve core, the other end of the driving mechanism is connected with the pot body, the heating mechanism heats the driving mechanism, so that the driving mechanism is thermally deformed to drive the flow guiding pipe or the valve core to move, the valve core is enabled to open or block the flow guiding pipe, and compared with a traditional liquid draining assembly, the liquid draining assembly is simple in structure, small in occupied space and difficult to fail. According to the electric cooker provided by the invention, the volume of the electric cooker can be effectively reduced by applying the liquid discharging assembly, and the electric cooker is not easy to fail.

Description

Drain component and electric cooker

Technical Field

The invention relates to the technical field of household appliances, in particular to a liquid draining assembly and an electric cooker.

Background

At present, low-sugar meal is suitable for people with diabetes. The traditional common electric rice cooker is used for cooking rice in a rice stewing way, so that the rice has high sugar content and is not suitable for diabetics to eat. In order to solve the problem, the electric cooker has a draining function, so that the rice is desugared, in order to drain water in the electric cooker, the electric cooker comprises a liquid draining assembly, the liquid draining assembly comprises a flow guiding pipe, a valve core and a driving mechanism, the flow guiding pipe is connected with the inside of the electric cooker, and the driving mechanism can drive the valve core to seal or open the flow guiding pipe, so that the draining function of the electric cooker is realized.

The existing driving mechanism comprises a motor and a multi-connecting rod mechanism, and the driving mechanism has the defects of complex structure, large occupied space and easy failure, so that the whole electric cooker has large volume and is easy to fail.

Disclosure of Invention

An object of the present invention is to provide a liquid discharge assembly that can simplify the structure, reduce the space occupation rate, and is less prone to malfunction.

Another objective of the present invention is to provide an electric rice cooker, which can effectively reduce the volume of the electric rice cooker and ensure that the electric rice cooker is not easy to fail by applying the liquid discharging assembly.

To achieve the purpose, the invention adopts the following technical scheme:

a drain assembly, comprising:

a flow guide pipe communicated with the interior of the pot body;

a valve core matched with the flow guide pipe and arranged to extend from the pot body towards the flow guide pipe;

one end of the driving mechanism is connected with the flow guide pipe or the valve core, and the other end of the driving mechanism is connected with the pot body; and

and the heating mechanism is arranged on the driving mechanism and is configured to heat the driving mechanism so as to enable the driving mechanism to be thermally deformed to drive the flow guide pipe or the valve core to move, and the valve core is enabled to open or close the flow guide pipe.

Preferably, the valve core is connected with the pan body, one end of the driving mechanism is connected with the flow guiding pipe, and the driving mechanism drives the flow guiding pipe to move up and down relative to the valve core when being deformed.

Preferably, the draft tube is made of an elastically deformable material, or the draft tube is a bellows.

Preferably, the drain assembly further comprises:

the liquid discharging cover is provided with a through hole, the liquid discharging cover is arranged on the pot body and covers the through hole, the liquid discharging cover is provided with a liquid discharging hole, and the flow guide pipe is positioned outside the pot body and communicated with the through hole.

Preferably, the valve core is connected with the liquid discharging cover and extends into the flow guide pipe, and the liquid discharging cover is detachably connected with the pot body.

Preferably, the flow guiding pipe comprises a connecting pipe and a liquid outlet pipe which are connected, one end of the connecting pipe, which is far away from the liquid outlet pipe, is connected with the pot body at the position of the through hole, a liquid outlet is formed at the connecting position of the connecting pipe and the liquid outlet pipe, and the valve core can be selectively opened or blocked.

Preferably, the valve core comprises a connecting part and a terminal, the connecting part is connected with the liquid discharging cover, the terminal is a cone, the liquid outlet is circular, and the cone can be inserted into the liquid outlet.

Preferably, the outside of honeycomb duct is provided with the lug, actuating mechanism includes bimetallic strip and shell fragment support, the one end of bimetallic strip with the pan body is connected, the other end of bimetallic strip is provided with the shell fragment support, the guide way has been seted up on the shell fragment support, the lug peg graft in the guide way and can be relative the guide way slides.

Preferably, the elastic sheet support comprises two connecting arms, the connecting arms are provided with guide grooves, two protruding blocks are arranged outside the guide pipe, and the two protruding blocks are respectively inserted into the corresponding guide grooves.

Preferably, the pot body comprises an outer pot and a base, the outer pot is arranged on the base, at least part of the guide pipe penetrates through and stretches out of the base, a limiting structure is arranged on the guide pipe which stretches out of the base, and the limiting structure can be in butt joint with the base.

Preferably, the cooker body further comprises an inner cooker detachably assembled inside the outer cooker, and the driving mechanism and the heating mechanism are mounted on the outer wall of the outer cooker.

Preferably, the bottom plate of the inner pot is provided with liquid leakage holes and supporting legs extending back to the bottom plate so as to form a liquid containing space between the inner pot and the outer pot.

Preferably, the valve core is disposed on a bottom wall of the outer pan so that the flow guide pipe communicates with the liquid accommodating space.

Preferably, the liquid discharging cover protrudes from the bottom wall of the outer pot towards the liquid accommodating space, and the liquid discharging hole is formed in the upper end face of the liquid discharging cover.

An electric cooker comprises a cooker body and a liquid draining assembly as described above.

Preferably, the cooker further comprises a body, wherein the body is detachably connected with the cooker body.

Preferably, one of the pan body and the machine body is provided with a fool-proof protrusion, and the other is provided with a fool-proof groove matched with the fool-proof protrusion.

The beneficial effects of the invention are as follows:

the liquid draining assembly comprises a driving mechanism and a heating mechanism, wherein one end of the driving mechanism is connected with the flow guiding pipe or the valve core, the other end of the driving mechanism is connected with the pot body, the heating mechanism heats the driving mechanism, so that the driving mechanism is thermally deformed to drive the flow guiding pipe or the valve core to move, the valve core is enabled to open or block the flow guiding pipe, and compared with a traditional liquid draining assembly, the liquid draining assembly is simple in structure, small in occupied space and difficult to fail.

According to the electric cooker provided by the invention, the volume of the electric cooker can be effectively reduced by applying the liquid discharging assembly, and the electric cooker is not easy to fail.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of an electric rice cooker according to an embodiment of the present invention;

fig. 2 is a sectional view of an electric rice cooker according to an embodiment of the present invention;

FIG. 3 is a block diagram of an inner pot provided by an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

fig. 5 is a schematic structural diagram of a second electric cooker according to an embodiment of the present invention;

FIG. 6 is a bottom view of a pan provided by an embodiment of the present invention;

FIG. 7 is a schematic view of a structure of a pan body according to an embodiment of the present invention;

FIG. 8 is a schematic view of a machine body according to an embodiment of the present invention;

FIG. 9 is a schematic view of a pan provided by an embodiment of the present invention;

FIG. 10 is a cross-sectional view of a draft tube provided by an embodiment of the present invention;

FIG. 11 is a schematic view of a drain assembly according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a liquid draining assembly according to a second embodiment of the present invention.

The figures are labeled as follows:

1000-electric cooker;

100-pot; 200-organism; 201-a water tank; 2011-plug tube; 202-a second plug terminal; 203-a display panel; 204-a first fool-proof groove; 205-a second foolproof bump;

1-a pot body; 11-an outer pot; 111-a liquid accommodation space; 112-a through hole; 12-inner pot; 121-an inner pot body; 1211-a handle; 122-a bottom plate; 1221-weep holes; 123-supporting legs; 13-a first plug terminal; 14-heating the structure; 15-a first foolproof bump; 16-a base; 17-a second fool-proof groove;

2-a liquid discharge assembly; 21-a flow guiding pipe; 211-connecting pipes; 212-a liquid outlet pipe; 213-a liquid outlet; 214-bumps; 215-a limiting part; 216-mounting; 217-sealing ring; 22-valve core; 221-terminal; 222-connection; 23-a driving mechanism; 231-bimetal; 232-spring plate brackets; 2321-a connecting arm; 23211-guide slots; 2322-fixed blocks; 24-heating mechanism; 241-heating block; 242-fixing plate; 25-a liquid discharge cover; 251-cover; 252-seals; 2511-weep hole.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1, the embodiment provides an electric cooker 1000, the electric cooker 1000 includes a pot 100 and a body 200, the pot 100 is mainly used for containing food and liquid to be made, the pot 100 is placed on the body 200, and the body 200 is used for realizing processing of food materials in the pot 100. The body 200 is provided with a display panel 203, and the display panel 203 is used for controlling various functions of the electric cooker 1000, such as heating, timing, mode switching, etc. The pot 100 is detachably connected with the machine body 200, and when the electric cooker 1000 needs to be used, the pot 100 and the machine body 200 can be installed together; when the electric rice cooker 1000 needs to be stored, the pan 100 and the body 200 can be detached, and the pan 100 and the body 200 can be stored separately. After the pan 100 is detached from the body 200, the pan 100 can be conveniently cleaned. Because more circuits are integrated on the machine body 200, the pan 100 is detachably connected with the machine body 200, and the pan 100 can be independently detached from the machine body 200 and then cleaned, so that water is prevented from entering the machine body 200, and normal use of the machine body 200 is prevented from being influenced. In addition, the weight of the individual pot 100 is smaller than that of the whole electric rice cooker 1000, and the difficulty of cleaning the electric rice cooker 1000 by a user can be reduced by cleaning the pot 100 alone.

The mode of use of the rice cooker 1000 will now be described with reference to fig. 2 and 3. As shown in fig. 2, the pot 100 includes a pot body 1, the pot body 1 includes an outer pot 11 and an inner pot 12, the inner pot 12 is placed in the outer pot 11, the inner pot 12 is used for placing food materials, due to the arrangement of the outer pot 11 and the inner pot 12, a good heat preservation effect on the food materials can be achieved, in addition, the outer pot 11 and the inner pot 12 are detachably connected, and the inner pot 12 can be independently taken out for cleaning, so that a good cleaning effect on the inner pot 12 is achieved. As shown in fig. 2 and 3, the inner pot 12 includes a cylindrical inner pot side wall 121, a bottom plate 122 and supporting legs 123, the bottom plate 122 is provided with liquid leakage holes 1221, and the supporting legs 123 are fixedly connected to the bottom plate 122 and extend away from the bottom plate 122. After the inner pan 12 is assembled in the outer pan 11, a liquid containing space 111 is formed between the bottom plate 122 of the inner pan 12 and the outer pan 11. During cooking, the food material to be processed is placed on the bottom plate 122; when the food material to be treated is required to be treated, the outer pot 11 is filled with liquid. When the amount of liquid is large, the liquid may flow upward from the liquid accommodating space 111 through the bottom plate 122 into the inner pan 12 to contact with the food material; when the amount of liquid is small, the liquid exists only in the liquid containing space 111 and is not in contact with the food material. The pot body 1 further comprises a first plug terminal 13 and a heating structure 14, a second plug terminal 202 matched with the first plug terminal 13 is arranged on the machine body 200, the first plug terminal 13 is plugged with the second plug terminal 202, the machine body 200 is electrically connected with the pot 100, an operator can realize the work of the heating structure 14 through an operation display panel 203, the heating structure 14 heats, and liquid in the liquid accommodating space 111 can cook food materials to be processed in the inner pot 12. In order to realize the heating effect of the liquid in the outer pot 11 faster and more balanced, the heating structure 14 can be a heating plate, the heating plate is paved at the bottom of the outer pot 11, the heating area of the heating plate is larger, and the liquid in the outer pot 11 can be heated faster and more balanced. In order to achieve better cleaning of the inner pot 12, as shown in fig. 3, a handle 1211 is provided at the end of the inner pot 121, and an operator can achieve the effect of quickly taking out the inner pot 12 from the outer pot 11 by pulling the handle 1211, so that the operator can clean the inner pot 12 conveniently.

In order to implement the process of desugaring the food material to be treated (for example, the food material is a steamed food material such as rice), the food material in the inner pot 12 needs to be steamed for a plurality of times, and the liquid containing more starch after each steaming needs to be discharged from the outer pot 11 and the middle pot, so as to implement the desugaring process of the food material to be treated. In order to realize the desugaring process of the food to be processed, as shown in fig. 2, a water tank 201 is arranged on the machine body 200, and a plugging tube 2011 is arranged on the water tank 201. The pot 100 further comprises a liquid discharging component 2 arranged at the bottom of the outer pot 11, the liquid discharging component 2 comprises a flow guide pipe 21, a valve core 22 and a driving mechanism, one end of the flow guide pipe 21 is communicated with the inside of the outer pot 11, the other end of the flow guide pipe 21 is connected with an inserting pipe 2011 in an inserting mode, the valve core 22 is arranged to extend from the pot body 1 towards the flow guide pipe 21, one end of the driving mechanism 23 is connected with the valve core 22 or one of the flow guide pipes 21, the other end of the driving mechanism 23 is connected with the pot body 1, and the driving mechanism 23 can enable the valve core 22 and the flow guide pipe 21 to move relatively to enable the valve core 22 to open or seal the flow guide pipe 21. When the heating structure 14 needs to cook the food materials in the pot body 1, the driving mechanism enables the valve core 22 to block the flow guide pipe 21 so as to keep the liquid in the outer pot 11 (in the liquid accommodating space 111 and/or in the inner pot 12); when the liquid needs to be discharged, the driving mechanism enables the valve core 22 to open the guide pipe 21, so that the liquid sequentially passes through the guide pipe 21 and the plug-in pipe 2011 and finally is discharged into the water tank 201 for storage. As a preferred scheme, as shown in fig. 1 and 2, the water tank 201 is detachably connected with the body of the machine body 200, so that the effect of rapidly discharging the liquid in the water tank 201 can be achieved, the operation of operators is convenient, the bacteria breeding caused by the storage of the liquid in the water tank 201 can be effectively avoided, and the health of users is ensured.

In order to better guide the liquid discharged by the guide pipe 21 into the plug pipe 2011, the liquid is prevented from leaking from the connection part of the through hole 112 of the guide pipe 21 and the plug pipe 2011, as shown in fig. 4, the guide pipe 21 is plugged into the inlet of the plug pipe 2011, the inlet of the plug pipe 2011 is horn-shaped, the cross section of the inlet is obliquely arranged from top to bottom towards the center line, the top end of the inlet is tightly abutted to the bottom of the pot 100, the guide pipe 21 can be completely coated by the bottom of the plug pipe 2011 and the bottom of the pot 100, and accordingly, the liquid can be prevented from leaking from the connection part of the guide pipe 21 and the plug pipe 2011. As a preferable scheme, the plugging tube 2011 can be made of elastic deformation materials such as rubber and silica gel, so that a good sealing effect between the plugging tube 2011 and the bottom of the pot 100 can be achieved.

As shown in fig. 2, since the pan 100 is detachably connected with the machine body 200, in order to avoid the careless touch of the operator with the liquid discharge assembly 2, the pan body 1 further comprises a base 16, and the base 16 is arranged to cover the outer side of the bottom of the outer pan 11 and cover the liquid discharge assembly 2, thereby protecting the liquid discharge assembly 2. As shown in fig. 4, at least part of the flow guiding tube 21 passes through and extends out of the base 16, a limiting structure 215 is arranged on the flow guiding tube 21 extending out of the base 16, the limiting structure 215 can be abutted against the base 16, the limiting structure 215 can prevent the flow guiding tube 21 from moving back and forth relative to the pot body 1, a good alignment effect of the flow guiding tube 21 and the plug-in pipe 2011 can be achieved, and the liquid in the flow guiding tube 21 can be ensured to smoothly enter the plug-in pipe 2011.

In the conventional electric rice cooker 1000, the first plug terminal 13 and the second plug terminal 202 are arranged along the center line of the electric rice cooker 1000, the guide pipe 21 and the plug pipe 2011 are usually located at one side of the center line of the electric rice cooker 1000, and the situation that the first plug terminal 13 and the second plug terminal 202 are well plugged, but the guide pipe 21 and the plug pipe 2011 are not right opposite to each other, which causes the liquid flowing out of the guide pipe 21 to flow into the circuit part of the machine body 200, and causes the machine body 200 to generate electric leakage phenomenon, so that operators generate electric shock risks, and the personal safety of the operators is affected. In order to solve the above problem, as shown in fig. 5, a first fool-proof protrusion 15 is provided on the outer sidewall of the outer pot 11, and a first fool-proof groove 204 is provided on the body 200. When the first plug terminal 13 and the second plug terminal 202 are joined together and the first foolproof protrusion 15 is plugged into the first foolproof groove 204, the flow guide tube 21 is plugged into the plug tube 2011, so that the situation that the flow guide tube 21 cannot be aligned with the plug tube 2011 can be effectively prevented, and liquid is prevented from flowing into the machine body 200 from the flow guide tube 21. In another embodiment, as shown in fig. 6 to 8, the bottom surface of the outer pot 11 is provided with a second foolproof protrusion 17, and a second foolproof groove 205 is correspondingly provided on the mating surface of the body 200, when the first plug terminal 13 and the second plug terminal 202 are joined together and the second foolproof protrusion 205 is plugged into the second foolproof groove 17, the flow guide tube 21 is plugged into the plug tube 2011, so that the situation that the flow guide tube 21 cannot be aligned with the plug tube 2011 can be effectively prevented, and liquid is prevented from flowing into the body 200 from the flow guide tube 21. It will be appreciated that the second fool-proof protrusions 17 may also be configured as grooves, and that correspondingly the second fool-proof grooves 205 are configured as protrusions, as well as the above-described effect. In addition, in one electric cooker 1000, a combination of the first fool-proof protrusion 15 and the first fool-proof groove 204 and/or a combination of the second fool-proof protrusion 17 and the second fool-proof protrusion 205 may be provided.

The conventional driving mechanism generally includes a motor and a multi-link mechanism, an input end of the multi-link mechanism is connected with an output end of the motor, an output end of the multi-link mechanism is connected with the valve core 22, and the motor drives the multi-link mechanism to move, so that the valve core 22 opens or blocks the flow guide pipe 21. However, the motor and the multi-link mechanism have complex structures, large occupied space and easy failure, so that the whole electric rice cooker 1000 has large volume and easy failure.

In order to solve the above-mentioned problems, as shown in fig. 9, the driving mechanism 23 of the present embodiment is a bimetal mechanism, and the liquid discharging assembly 2 further includes a heating mechanism 24, where the heating mechanism 24 is used for heating the bimetal mechanism. One end of the driving mechanism 23 is connected with the flow guide pipe 21 or the valve core 22, the other end of the driving mechanism 23 is connected with the pot body 1, and the heating mechanism 24 is used for heating the driving mechanism 23 so that the driving mechanism 23 is deformed by heating to drive the flow guide pipe 21 or the valve core 22 to move, and the valve core 22 is used for opening or sealing the flow guide pipe 21. The drain assembly 2 of the embodiment is simple in structure, small in occupied space and difficult to fail compared with the drain assembly 2 formed by a motor and a multi-link mechanism by using the bimetal mechanism and the heating mechanism 24, so that the whole small size of the electric cooker 1000 is achieved, and the effect of difficult failure is achieved.

Specifically, as shown in fig. 4 and 9, the valve core 22 is disposed on the bottom wall of the outer pot 11, so that the flow guiding tube 21 is communicated with the liquid accommodating space 111, the driving mechanism 23 includes a bimetal 231, one end of the bimetal 231 is connected with the flow guiding tube 21, the other end of the bimetal 231 is connected with the pot body 1, and the upper and lower layers of materials of the bimetal 231 have different thermal expansion coefficients, when the heating mechanism 24 heats the bimetal 231, one end of the bimetal 231 connected with the flow guiding tube 21 can be bent upwards or downwards, so as to drive the flow guiding tube 21 to move along the up and down direction, thereby realizing that the valve core 22 opens or seals the flow guiding tube 21. The driving mechanism 23 of the present embodiment bends downward when heated, and the bimetal 231 includes two material layers from top to bottom, and the thermal expansion coefficient of the upper material layer is larger than that of the lower material layer, for example, the upper material layer is Ni36, and the lower material layer is Mn72Ni10Cu18.

In other embodiments, the valve core 22 may be connected to the pan body 1 through the driving mechanism 23, and when the bimetal 231 deforms, the valve core 22 can be driven to move up and down, so as to achieve the approach or separation of the valve core 22 relative to the flow guiding tube 21, and also achieve the opening or blocking of the flow guiding tube 21 by the valve core 22.

When the driving mechanism 23 drives the flow guide 21 to move up and down in fig. 4 (as indicated by the arrow in fig. 4) relative to the valve core 22, in order to achieve a good elastic deformation of the flow guide 21, the flow guide 21 may be made of an elastically deformable material such as rubber, silica gel, or the like. In addition, the flow guiding tube 21 may be a corrugated tube, and the corrugated tube can generate larger elastic deformation through its own structure, so as to prevent the flow guiding tube 21 from being damaged.

In order to smoothly discharge the liquid in the outer pot 11 into the flow guide pipe 21, as shown in fig. 2, 3 and 4, the liquid discharge assembly 2 further comprises a liquid discharge cover 25, a through hole 112 is formed in the bottom wall of the outer pot 11, the liquid discharge cover 25 is arranged on the pot body 1 and covers the through hole 112, a liquid discharge hole 2511 (see fig. 11) is formed in the liquid discharge cover 25, the flow guide pipe 21 is located outside the pot body 1 and is communicated with the through hole 112, and the liquid in the outer pot 11 can enter the flow guide pipe 21 through the liquid discharge hole 2511, so that the liquid is discharged.

Specifically, as shown in fig. 4, the valve element 22 is provided on the discharge cap 25 and extends into the draft tube 21. The flow guiding tube 21 comprises a connecting tube 211 and a liquid outlet tube 212 which are connected, one end of the connecting tube 211 far away from the liquid outlet tube 212 is connected with the pot body 1 at the position of the through hole 112, a liquid outlet 213 (shown in fig. 10) is formed at the connecting position of the connecting tube 211 and the liquid outlet tube 212, and the valve core 22 can selectively open or close the liquid outlet 213. Specifically, as shown in fig. 4, the valve core 22 includes a terminal 221 and a connecting portion 222, the connecting portion 222 is fixed on the liquid discharge cap 25, and the terminal 221 can selectively open or close the liquid outlet 213.

In order to achieve a good sealing effect of the terminal 221 when the liquid outlet 213 is plugged, the terminal 221 is a cone, the liquid outlet 213 is circular, and the cone can be inserted into the liquid outlet 213 to form an annular sealing structure, so that the sealing effect of the terminal 221 and the liquid outlet 213 is improved. In order to further enhance the sealing effect of the terminal 221 when the liquid outlet 213 is sealed, as shown in fig. 10, an annular seal ring 217 is formed at the position of the liquid outlet 213, and the seal ring 217 is abutted against the terminal 221, thereby realizing a preferable sealing effect.

In addition, because the outer pot 11 is wholly cleaned, the liquid discharge cover 25 and the valve core 22 are difficult to clean, bacteria are easy to breed in the liquid discharge cover 25 and the valve core 22, and the health of a user is influenced.

In order to mount the flow guide tube 21 on the outer pot 11, as shown in fig. 4, the flow guide tube 21 further includes a mounting member 216 with a stepped cross section, the mounting member 216 is arranged on the outer pot 11 in a penetrating manner, one end of the mounting member 216 extends into the outer pot 11, the other end extends out of the outer pot 11, and the flow guide tube 21 is connected with one end of the mounting member 216 extending out of the outer pot 11. In order to realize the detachable connection of the liquid discharge cover 25 and the pan body 1, as shown in fig. 4, the liquid discharge cover 25 is detachably connected with one end of the mounting piece 216 extending into the outer pan 11. When the tapping cover 25 is inserted into one end of the mounting member 216 extending into the outer pot 11, in order to prevent the tapping cover 25 from falling off from the mounting member 216, the tapping cover 25 includes a cover 251 and a sealing member 252, wherein the sealing member 252 is disposed between the mounting member 216 and the cover 251, and the sealing member 252 may be a rubber block or a silicone block, etc.

In addition, as shown in fig. 2 and 4, the liquid discharge cover 25 protrudes from the bottom wall of the outer pot 11 toward the liquid accommodating space 111, and the liquid discharge hole 2511 is formed in the upper end surface of the liquid discharge cover 25, so that a certain amount of liquid can be temporarily stored between the upper end surface of the liquid discharge cover 25 and the bottom wall of the outer pot 11 all the time, dry burning of the outer pot 11 is avoided, fire is avoided, and use safety is ensured.

In addition, the motion track of the end of the bimetal 231 far away from the pot body 1 is an arc, if the driving mechanism 23 is directly and fixedly connected with the guide pipe 21, the motion track of the connection part of the guide pipe 21 and the bimetal 231 is an arc, so that the guide pipe 21 and the plug pipe 2011 cannot be directly opposite, and liquid can leak from between the guide pipe 21 and the plug pipe 2011. In order to solve the above problem, as shown in fig. 11, the outside of the flow guiding tube 21 is provided with a bump 214, the driving mechanism 23 further includes a spring plate bracket 232, one end of the bimetal 231 is connected with the pan body 1, and the other end of the bimetal 231 is provided with the spring plate bracket 232. The spring plate support 232 is provided with a guide groove 23211, and the protruding block 214 is inserted into the guide groove 23211 and can slide relative to the guide groove 23211. When the spring plate support 232 on the bimetallic strip 231 moves in an arc manner, the protruding block 214 slides along the guide groove 23211 and moves up and down under the drive of the spring plates 232, so that good coaxiality of the guide pipe and the plug-in pipe 2011 can be ensured, the guide pipe 21 and the plug-in pipe 2011 are ensured to be opposite, and leakage of liquid from the guide pipe 21 and the plug-in pipe 2011 is avoided.

As shown in fig. 12, preferably, the spring plate support 232 includes two connection arms 2321 and a fixing block 2322, the two connection arms 2321 are connected with the fixing block 2322, the fixing block 2322 is connected with the bimetal 231, the connection arm 2321 is provided with a guide groove 23211, two protruding blocks 214 are arranged outside the guide tube 21, the two protruding blocks 214 are respectively inserted into the corresponding guide grooves 23211, so that the force on two sides of the guide tube 21 is uniform, and the guide tube 21 is guaranteed to move well along the vertical direction.

In order to stably fix the heating mechanism 24 on the driving mechanism 23, as shown in fig. 11 and 12, the heating mechanism 24 includes a heating block 241 and a fixing plate 242, the heating block 241 is disposed between the fixing plate 242 and the bimetal 231, the fixing plate 242 is fixed to the bottom of the outer pot 11, and the fixing plate 242 and the bimetal 231 can firmly clamp the heating block 241.

For easy understanding, the process of making desugared rice in the electric rice cooker 1000 will now be described: step (1): rice is placed in the inner pot 12, water is added into the outer pot 11, and the water passes through the water leakage hole 1211, so that the heating structure 14 works, and the rice cooker 1000 starts to steam rice. Step (2): after steaming the rice for a predetermined time (which may be achieved by programming control, which is well known to those skilled in the art and will not be described herein), the heating block 241 heats the bimetal 231, and thus the liquid outlet 213 is opened and discharged until the rice soup does not contact the rice. Step (3): the heating block 241 is stopped (this can also be achieved by programming control, which is well known to those skilled in the art and will not be described here), the liquid outlet 213 is thus blocked, the heating structure 14 continues to heat the liquid in the liquid containing chamber 111, and the rice is steamed by using steam. The rice soup discharged in the step (2) takes away part of starch in the rice, thereby completing the preparation of the desugared rice.

Note that the basic principles and main features of the present invention and advantages of the present invention are shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (15)

1. A drain assembly for an electric rice cooker, comprising:

a pan (100) and a machine body (200), wherein the pan (100) is used for containing food and liquid to be manufactured, the pan (100) is placed on the machine body (200), the machine body (200) is used for realizing the treatment of food materials in the pan (100), the pan (100) comprises a pan body (1), and the machine body (200) is detachably connected with the pan body (1);

a draft tube (21) communicated with the interior of the pot body (1);

a valve core (22) matched with the flow guide pipe (21) and arranged to extend from the pot body (1) towards the flow guide pipe (21);

the driving mechanism (23) is connected with the flow guide pipe (21) or the valve core (22) at one end and the pot body (1) at the other end, the driving mechanism (23) further comprises a bimetallic strip (231), one end of the bimetallic strip (231) is connected with the flow guide pipe (21), and the other end of the bimetallic strip (231) is connected with the pot body (1); and

and a heating mechanism (24) disposed on the driving mechanism (23) and configured to heat the driving mechanism (23) so as to deform the driving mechanism (23) by heating to drive the flow guide pipe (21) or the valve core (22) to move so as to open or close the flow guide pipe (21), wherein the heating mechanism (24) comprises a heating block (241) and a fixing plate (242), and the heating block (241) is disposed between the fixing plate (242) and the bimetal (231).

2. The drain assembly of the electric rice cooker according to claim 1, wherein the valve core (22) is connected with the cooker body (1), one end of the driving mechanism (23) is connected with the flow guide pipe (21), and the driving mechanism (23) drives the flow guide pipe (21) to move up and down relative to the valve core (22) when being deformed.

3. The drain assembly of an electric rice cooker according to claim 2, characterized in that the guide tube (21) is made of an elastically deformable material or the guide tube (21) is a bellows.

4. The drain assembly of claim 2, further comprising:

the liquid discharging cover (25), through-hole (112) has been seted up on the pot body (1), liquid discharging cover (25) set up in on the pot body (1) and cover and establish through-hole (112) department, liquid discharging hole (2511) has been seted up on liquid discharging cover (25), honeycomb duct (21) are located the outside of the pot body (1) and with through-hole (112) are linked together.

5. The drain assembly of the electric rice cooker according to claim 4, wherein the valve core (22) is connected with the drain cover (25) and extends into the guide pipe (21), and the drain cover (25) is detachably connected with the cooker body (1).

6. The drain assembly of the electric rice cooker according to claim 4, wherein the flow guiding tube (21) comprises a connecting tube (211) and a drain tube (212) which are connected, one end of the connecting tube (211) away from the drain tube (212) is connected with the pan body (1) at the position of the through hole (112), a liquid outlet (213) is formed at the connection position of the connecting tube (211) and the drain tube (212), and the valve core (22) can selectively open or close the liquid outlet (213).

7. The drain assembly of the electric rice cooker according to claim 6, wherein the valve core (22) comprises a connecting portion (222) and a terminal (221), the connecting portion (222) is connected with the drain cover (25), the terminal (221) is a cone, the liquid outlet (213) is circular, and the cone can be inserted into the liquid outlet (213).

8. The drain assembly of claim 6, wherein the exterior of the flow guiding tube (21) is provided with a bump (214), the driving mechanism (23) further comprises a spring plate bracket (232), one end of the bimetal (231) is provided with the spring plate bracket (232), the spring plate bracket (232) is provided with a guide groove (23211), and the bump (214) is inserted into the guide groove (23211) and can slide relative to the guide groove (23211).

9. The drain assembly of claim 8, wherein the spring plate bracket (232) includes two connecting arms (2321), a guide groove (23211) is formed in the connecting arm (2321), two protruding blocks (214) are arranged outside the guide pipe (21), and the two protruding blocks (214) are respectively inserted into the corresponding guide grooves (23211).

10. The drain assembly of the electric rice cooker according to claim 9, wherein the pot body (1) comprises an outer pot (11) and a base (16), the outer pot (11) is arranged on the base (16), at least part of the flow guide pipe (21) penetrates through and extends out of the base (16), a limiting structure (215) is arranged on the flow guide pipe (21) extending out of the base (16), and the limiting structure (215) can be abutted with the base (16).

11. The drain assembly of the electric rice cooker according to claim 10, wherein the cooker body (1) further comprises an inner cooker (12) detachably assembled inside the outer cooker (11), and the driving mechanism (23) and the heating mechanism (24) are mounted on an outer wall of the outer cooker (11).

12. The drain assembly of the rice cooker according to claim 11, wherein a drain hole (1221) and a leg (123) extending away from the bottom plate (122) are formed on the bottom plate (122) of the inner pot (12) to form a liquid containing space (111) between the inner pot (12) and the outer pot (11).

13. The drain assembly of the electric rice cooker according to claim 12, wherein the valve core (22) is provided on a bottom wall of the outer pot (11) so that the flow guide pipe (21) communicates with the liquid containing space (111).

14. The drain assembly of the electric rice cooker according to claim 12, wherein the drain cover (25) protrudes from the bottom wall of the outer pot (11) toward the liquid accommodating space (111), and the drain hole (2511) is provided at an upper end surface of the drain cover (25).

15. The drain assembly of the electric rice cooker according to claim 1, wherein one of the pot body (1) and the machine body (200) is provided with a fool-proof protrusion, and the other is provided with a fool-proof groove matched with the fool-proof protrusion.