Cooking utensilTechnical Field
The invention relates to a cooking appliance, in particular to an improvement of a pot cover of the cooking appliance.
Background
Currently, electric pressure cookers and electric rice cookers have become small household appliances in stock home kitchens. Electric pressure cooker and electric rice cooker in market have reservation and heat preservation function. In summer, the external temperature is high, and when long-time reservation or heat preservation is carried out, foods such as rice, broth and the like are prone to be soaked and deteriorated, so that the user experience is poor. At present, fresh-keeping is generally performed by means of air extraction, freezing and the like. The electric pressure cooker with the fresh-keeping function comprises a cooker body and a cooker cover covered on the cooker body, wherein the cooker cover comprises a surface cover, a lining and an inner cover which are sequentially arranged from outside to inside. The inner lining is provided with an air extractor, and when air extraction and fresh keeping are needed, the air extractor can extract the gas in the pot through the sealed air extraction cavity. When cooking, the air pumping cavity is not communicated with the cooking cavity inside the pot body. After the user finishes cooking and holds food, the pot cover is buckled on the pot body. Because the food in the pot is hotter, steam is continuously generated, so that the pressure in the pot is increased. Because of the lack of a pressure relief channel, it can become difficult when the user uncaps again, resulting in a poor user experience.
Disclosure of Invention
The invention mainly aims to provide a cooking appliance so as to solve the problem of poor user experience of the cooking appliance in the prior art.
In order to achieve the aim, the invention provides a cooking utensil which comprises a cooking cavity, an air suction cavity, a first communication channel, a floater, a one-way mechanism and a one-way mechanism, wherein the first communication channel is arranged between the air suction cavity and the cooking cavity so that gas in the cooking cavity can be sucked out through the air suction cavity, the air suction port of the air suction device is communicated with the air suction cavity, the floater is movably arranged in the first communication channel and has an air suction position for enabling the air suction cavity to be communicated with the cooking cavity and a sealing position for enabling the air suction cavity to be not communicated with the cooking cavity, the floater is in the air suction position in a non-working state of the cooking utensil, the floater driving mechanism drives the floater to move from the air suction position to the sealing position, the floater moves to the air suction position under the action of gravity, and the one-way mechanism enables the gas in the air suction cavity to be discharged to the outside through the one-way mechanism and enables the outside atmosphere not to enter the air suction cavity through the one-way mechanism.
By applying the technical scheme of the invention, the cooking utensil comprises the floater which is movably arranged in the first communication channel, the floater is provided with the air suction position for enabling the air suction cavity to be communicated with the cooking cavity and the sealing position for enabling the air suction cavity to be not communicated with the cooking cavity, and the floater is positioned at the air suction position in the non-working state of the cooking utensil. The cooking utensil further comprises a one-way mechanism, and the one-way mechanism can enable gas in the air pumping cavity to be discharged to the outside through the one-way mechanism, and enable the outside atmosphere to be unable to enter the air pumping cavity through the one-way mechanism. After the user finishes cooking and takes food, steam is continuously generated due to the fact that the food in the cooking cavity is hot, and the pressure in the cooking cavity is increased. Because the cooking utensil is in the non-operating condition, the float is in the position of bleeding, and the unidirectional mechanism can make the gas in the pumping chamber discharge to the external world through unidirectional mechanism. The steam in the cooking cavity can enter the pumping cavity through the float and then finally be discharged to the outside through the one-way mechanism. Like this, the pressure in the cooking chamber can be reduced to above-mentioned structure, avoids the phenomenon of user's difficulty of uncapping to take place, thereby improved user experience, solved the user of cooking utensil among the prior art and used the poor problem of experience.
Further, the unidirectional mechanism comprises a second communication channel and a switch mechanism arranged on the second communication channel, when the switch mechanism is in an open state, the second communication channel is communicated with the air pumping cavity and the outside atmosphere, so that gas in the air pumping cavity can be discharged to the outside through the second communication channel, when the switch mechanism is in a closed state, the second communication channel is blocked, the air pumping cavity and the outside atmosphere are not communicated with each other, so that the outside atmosphere cannot enter the air pumping cavity through the second communication channel, and the cooking utensil further comprises a control device for controlling the switch mechanism to switch between the open state and the closed state.
Further, when the cooking appliance is in the non-operating state, the switching mechanism is in the open state.
Further, the switch mechanism is arranged in the middle of the second communication channel, the switch mechanism separates the second communication channel into a first communication section communicated with the air suction cavity and a second communication section communicated with the outside, the switch mechanism comprises a blocking structure, the blocking structure is movably arranged at the outlet of the first communication section or the inlet of the second communication section, when the switch mechanism is in an open state, the blocking structure is prevented from avoiding the outlet of the first communication section and the inlet of the second communication section, and when the switch mechanism is in a closed state, the blocking structure is blocked at the outlet of the first communication section or the inlet of the second communication section.
Further, the switch mechanism further comprises a shell, the plugging structure is arranged inside the shell, a first connector and a second connector are arranged on the shell, an outlet of the first communication section is communicated with a channel in the first connector, and an inlet of the second communication section is communicated with a channel in the second connector.
Further, the blocking structure comprises a push rod structure and a sealing structure arranged at the end part of the push rod structure.
Further, the switch mechanism further comprises a driving part for driving the plugging structure to move.
The cooking utensil further comprises a pot body and a pot cover, wherein the pot body is used for containing food to be cooked, the pot cover is arranged on the pot body, the pot cover comprises a surface cover, an inner liner and an inner cover which are sequentially arranged from top to bottom, a sealing part is arranged on the pot cover, a cavity formed by the sealing part and the inner cover forms a pumping cavity, a cooking cavity is formed by the inner cover and the cavity formed by the inner cover and the pot body, and a first communication channel is arranged on the inner cover.
Further, the lining is provided with an installation opening, the sealing part comprises a sealing cover arranged at the installation opening and a sealing ring arranged between the installation opening and the inner cover, the sealing ring and the inner cover jointly form an air pumping cavity, and a first through hole communicated with the air suction opening and a second through hole communicated with an inlet of the first communication section are arranged on the sealing cover.
Further, a first magnetic block is arranged on the floater, the first magnetic block is provided with a first magnetic pole, the floater driving mechanism comprises a second magnetic block, the second magnetic block is provided with a second magnetic pole, the first magnetic pole is different from the second magnetic pole, when the first magnetic block corresponds to the second magnetic block, the floater moves to a sealing position under the attractive force of the second magnetic block, and when the distance between the second magnetic block and the first magnetic block is larger than a preset distance, the floater moves to an air extraction position under the action of gravity of the floater.
Further, the float driving mechanism further comprises a rotating support which is pivotally arranged above the air pumping cavity, the rotating support rotates on the horizontal plane, and the second magnetic block is arranged at one end of the rotating support far away from the pivot shaft of the rotating support.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic front view of a structure of an embodiment of a cooking appliance according to the present invention;
Fig. 2 shows a schematic longitudinal sectional structure of the cooking appliance of fig. 1;
FIG. 3 illustrates an exploded view of a pot, an inner lid and a liner of the cooking appliance of FIG. 1;
FIG. 4 illustrates an exploded view of a pan and liner of the cooking appliance of FIG. 1;
FIG. 5 shows a schematic cross-sectional structure of the cooking appliance of FIG. 1 when the pot body is mated with the lid;
fig. 6 shows an enlarged structural schematic view at a of the cooking appliance of fig. 5;
fig. 7 illustrates a schematic perspective view of a liner of the cooking appliance of fig. 1;
fig. 8 illustrates an internal structural schematic view of a switching mechanism of the cooking appliance of fig. 7;
FIG. 9 shows a schematic partial cross-sectional structural view of the float of the cooking appliance of FIG. 1 in a suction position;
Fig. 10 shows an enlarged structural schematic view of a cooking appliance of fig. 9 at B;
FIG. 11 shows a schematic partial cross-sectional view of the float of the cooking appliance of FIG. 1 in a sealed position, and
Fig. 12 shows an enlarged structural schematic view of the cooking appliance of fig. 9 at C.
Wherein the above figures include the following reference numerals:
1. Cooking cavity, 2, pumping cavity, 10, pot body, 20, pot cover, 21, face cover, 22, lining, 23, inner cover, 231, first communication channel, 32, sealing cover, 321, first through hole, 322, second through hole, 33, sealing ring, 40, pumping device, 41, air suction port, 42, air exhaust port, 50, float, 70, first magnetic block, 80, float driving mechanism, 81, second magnetic block, 82, electromagnetic valve, 83, rotating bracket, 90, unidirectional mechanism, 91, second communication channel, 911, first communication section, 9111, outlet, 912, second communication section, 9121, inlet, 92, switching mechanism, 921, blocking structure, 9211, push rod structure, 9212, sealing structure, 922, outer shell, 9221, first connector, 9222, second connector, 923, driving part, 110 and third connector.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 12, the cooking appliance of the present embodiment includes a cooking chamber 1, an air extraction chamber 2, an air extraction device 40, a float 50, a float driving mechanism 80, and a one-way mechanism 90. Wherein, a first communication channel 231 is arranged between the pumping chamber 2 and the cooking chamber 1 so that the gas in the cooking chamber 1 can be pumped out through the pumping chamber 2. The suction opening 41 of the suction device 40 communicates with the suction chamber 2. The float 50 is movably disposed in the first communication passage 231, the float 50 has a suction position where the suction chamber 2 communicates with the cooking chamber 1 and a sealing position where the suction chamber 2 does not communicate with the cooking chamber 1, and the float 50 is in the suction position in the non-operating state of the cooking appliance. The float drive mechanism 80 drives the float 50 from the suction position to the sealing position, and the float 50 moves to the suction position by its gravity. The unidirectional mechanism 90 enables the gas in the pumping chamber 2 to be discharged to the outside through the unidirectional mechanism 90, and prevents the outside atmosphere from entering the pumping chamber 2 through the unidirectional mechanism 90.
By applying the technical solution of the present embodiment, the cooking appliance includes the float 50 movably disposed in the first communication channel, the float 50 has the pumping position for communicating the pumping chamber 2 with the cooking chamber 1 and the sealing position (i.e. the position where the float 50 is located in fig. 10) for not communicating the pumping chamber 2 with the cooking chamber 1, and the float 50 is located in the pumping position (i.e. the position where the float 50 is located in fig. 8) in the non-operating state of the cooking appliance. The cooking appliance further comprises a one-way mechanism 90, and the one-way mechanism 90 can enable gas in the air extraction cavity 2 to be discharged to the outside through the one-way mechanism 90, and enable the outside atmosphere to not enter the air extraction cavity 2 through the one-way mechanism 90. When the user finishes cooking and takes food, the pot cover is closed. Since the food in the cooking cavity 1 is hot, steam is continuously generated, so that the pressure in the cooking cavity 1 increases. Since the cooking appliance is in the non-operating state, the float 50 is in the pumping position, and the one-way mechanism 90 enables the gas in the pumping chamber 2 to be discharged to the outside through the one-way mechanism 90. The steam in the cooking chamber 1 can thus enter the pumping chamber 2 through the float 50 and then finally be discharged to the outside through the one-way mechanism 90. Like this, above-mentioned structure can reduce the pressure in the cooking chamber 1, avoids the phenomenon of user's difficulty of uncapping to take place, thereby improved user experience, solved the user of cooking utensil among the prior art and used the poor problem of experience.
As shown in fig. 7 to 12, in the present embodiment, the unidirectional mechanism 90 includes a second communication passage 91 and a switching mechanism 92 provided on the second communication passage 91, the second communication passage 91 communicates the pumping chamber 2 with the outside atmosphere when the switching mechanism 92 is in an open state so that the gas in the pumping chamber 2 can be discharged to the outside through the second communication passage 91, the second communication passage 91 is blocked when the switching mechanism 92 is in a closed state, the pumping chamber 2 and the outside atmosphere are not communicated with each other so that the outside atmosphere cannot enter the pumping chamber 2 through the second communication passage 91, and in the present embodiment, the cooking appliance further includes a control device that controls the switching mechanism 92 to switch between the open state and the closed state. Specifically, when the control device receives the air extraction signal, the float 50 is located at the air extraction position, the control device controls the air extraction device 40 to extract air, and controls the switch mechanism 92 to make the switch mechanism 92 in a closed state, so that the air extraction cavity 2 is not communicated with the outside, and smooth extraction of the air in the air extraction cavity 2 and the cooking cavity 1 is ensured. When the control device receives the cooking signal and the float driving mechanism 80 fails, the control device can control the switch mechanism 92 to be opened, so that the air suction cavity 2 is communicated with the outside. After the communication, the pressure in the air extraction cavity 2 is equal to the external pressure, and the pressure difference between the gas in the cooking cavity 1 and the air extraction cavity 2 is increased along with the increase of the pressure in the cooking cavity 1, so that when the pressure difference is enough to overcome the gravity of the floater 50, the floater 50 can float to a sealing position. The structure enables the cooking cavity 1 to be normally pressed up even if the float driving mechanism 80 is invalid during cooking, so that the cooking effect of the cooking appliance is ensured.
In the present embodiment, when the cooking appliance is in the non-operating state, the switching mechanism 92 is in the open state. Specifically, when the user finishes cooking and takes food, the pot cover is closed. Since the food in the cooking cavity 1 is hot, steam is continuously generated, so that the pressure in the cooking cavity 1 increases. Since the cooking appliance is in the inactive state, the float 50 is in the suction position and the switching mechanism 92 is in the open state. Thus, steam in the cooking chamber 1 can enter the pumping chamber 2 through the float 50 and then enter the second communication passage 91. Then, the steam introduced into the second communication passage 91 passes through the switching mechanism 92 and is finally discharged to the outside. Therefore, the structure can reduce the pressure in the cooking cavity 1, and avoid the phenomenon that a user uncovers the cover difficultly, thereby improving the user experience and solving the problem that the user of the cooking appliance in the prior art has poor use experience.
As shown in fig. 7 and 8, in the present embodiment, the switching mechanism 92 is provided in the middle of the second communication passage 91, the switching mechanism 92 partitions the second communication passage 91 into a first communication section 911 communicating with the pumping chamber 2 and a second communication section 912 communicating with the outside, the switching mechanism 92 includes a blocking structure 921, the blocking structure 921 is movably provided at an outlet 9111 of the first communication section 911 or an inlet 9121 of the second communication section 912, the blocking structure 921 is dodged at the outlet 9111 of the first communication section 911 and at the inlet 9121 of the second communication section 912 when the switching mechanism 92 is in an open state, and the blocking structure 921 is blocked at the outlet 9111 of the first communication section 911 or at the inlet 9121 of the second communication section 912 when the switching mechanism 92 is in a closed state. Preferably, in the present embodiment, when the switching mechanism 92 is in the on state, the blocking structure 921 is away from the outlet 9111 of the first communication section 911, and the steam in the pumping chamber 2 flows back to the switching mechanism 92 after entering the first communication section 911. As the blocking structure 921 avoids the outlet 9111 of the first communication section 911. Thus, steam will enter the interior of the switch mechanism 92 from the outlet 9111 and then enter the second communication 912 from the inlet 9121. The steam introduced into the second communication section 912 can be finally discharged to the outside. The structure is simple and easy to realize.
As shown in fig. 7 and 8, in the present embodiment, the switching mechanism 92 further includes a housing 922, the blocking structure 921 is disposed inside the housing 922, a first connector 9221 and a second connector 9222 are disposed on the housing 922, the outlet 9111 of the first communication section 911 communicates with a passage in the first connector 9221, and the inlet 9121 of the second communication section 912 communicates with a passage in the second connector 9222. Preferably, in this embodiment, the first connector 9221 communicates with the pumping chamber 2 through a first hose, the passage in the first hose forming the first communication segment 911. The second connector 9222 communicates with the outside through a second hose, and a passage in the second hose forms a second communication section 912.
In the present embodiment, as shown in fig. 7, a third joint 110 is disposed on the liner 22, the third joint 110 is disposed on the liner 22 in a penetrating manner, one end of the second hose is connected to the second joint 9222, and the other end of the second hose is sleeved on the third joint 110 so that steam can be discharged to the outside through the third joint 110.
It should be noted that, the air extractor 40 further includes an air outlet 42, a third hose is sleeved on the air outlet 42, and an end of the third hose, which is far away from the air outlet 42, is connected to the second hose, so that the air exhausted from the air outlet 42 can be exhausted to the outside through the third connector 110.
As shown in fig. 8, in the present embodiment, the blocking structure 921 includes a push rod structure 9211 and a sealing structure 9212 provided at an end of the push rod structure 9211. When the switch mechanism 92 is in the closed state, the push rod structure 9211 pushes the sealing structure 9212 against the end of the first connector 9221 away from the first hose. The structure is simple, and the sealing structure 9212 has better blocking effect and prevents air leakage.
As shown in fig. 8, in the present embodiment, the switching mechanism 92 further includes a driving portion 923 that drives the blocking structure 921 to move. The above structure can provide a driving force for the occlusion structure 921.
As shown in fig. 1 to 6 and 9 to 12, in the present embodiment, the cooking appliance includes a pot body 10 and a pot cover 20. Wherein the pan body 10 is used for containing food to be cooked. The pot cover 20 is covered on the pot body 10, the pot cover 20 comprises a surface cover 21, a lining 22 and an inner cover 23 which are sequentially arranged from top to bottom, a sealing part is arranged on the pot cover 20, a cavity formed by the sealing part and the inner cover 23 forms a pumping cavity 2, a cavity formed by the inner cover 23 and the pot body 10 forms a cooking cavity 1, and a first communication channel 231 is arranged on the inner cover 23. The structure is simple and easy to realize.
As shown in fig. 9 to 12, in the present embodiment, the liner 22 is provided with a mounting opening, the sealing portion includes a sealing cap 32 provided at the mounting opening and a sealing ring 33 provided between the mounting opening and the inner cap 23, the sealing cap 32, the sealing ring 33 and the inner cap 23 together form the air extraction chamber 2, and the sealing cap 32 is provided with a first through hole 321 communicating with the air inlet 41 and a second through hole 322 communicating with the inlet of the first communicating section 911. The sealing ring 33 is disposed between the inner liner 22 and the inner cover 23, so as to prevent air from entering the gap between the inner liner 22 and the inner cover 23 during air extraction, avoid air leakage, and ensure air extraction efficiency.
As shown in fig. 9 to 12, in the present embodiment, the first magnetic block 70 is provided on the float 50, the first magnetic block 70 has a first magnetic pole, the float driving mechanism 80 includes a second magnetic block 81, the second magnetic block 81 has a second magnetic pole, the first magnetic pole is different from the second magnetic pole, when the first magnetic block 70 corresponds to the second magnetic block 81, the float 50 is moved to the sealing position by the attractive force of the second magnetic block 81, and when the distance between the second magnetic block 81 and the first magnetic block 70 is greater than the predetermined distance, the float 50 is moved to the air suction position by its own gravity. Specifically, when the second magnetic block 81 approaches the first magnetic block 70, the float 50 having the first magnetic block 70 moves upward to the sealing position by the magnetic force. When the second magnetic block 81 moves away from the first magnetic block 70 until the second magnetic block 81 loses the attractive force to the first magnetic block 70, the float 50 moves downward to the air extraction position by its own gravity. The structure is simple and easy to realize.
As shown in fig. 3, 4 and 11, in the present embodiment, the float driving mechanism 80 further includes a rotating bracket 83, the rotating bracket 83 is pivotably provided above the air extracting chamber 2, the rotating bracket 83 rotates on a horizontal plane, and the second magnet 81 is provided at an end of the rotating bracket 83 remote from the pivot shaft of the rotating bracket 83. Specifically, when the control device receives the cooking signal, the rotating bracket 83 rotates so that the second magnet 81 swings to above the suction chamber 2. The first magnet 70 on the float 50 rises to the sealing position by receiving the attractive force of the second magnet 81. When the control device receives the air extraction signal, one end of the rotating bracket 83 with the second magnetic block swings in a direction away from the air extraction cavity 2, and when the rotating bracket 83 swings to a preset position, the second magnetic block 81 does not attract the first magnetic block 70 any more. At this time, the float 50 having the first magnet 70 falls back to the suction position due to its own weight. The structure is simple, and the production cost is low. In this embodiment, the float driving mechanism 80 further includes a solenoid valve 82, and the solenoid valve 82 drives the rotation bracket 83 to rotate. The structure is simple and easy to realize.
In this embodiment, the cooking appliance is an electric pressure cooker.
In this embodiment, the cooking appliance further includes a heating device for heating food in the pot 10.
The above description is only of the preferred embodiments 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.