Cooking appliances capable of cooking with and without pressure

Abstract

The present invention provides a cooking utensil capable of achieving pressure cooking and pressureless cooking, comprising: a pot body for holding food to be cooked, a heating device being arranged in the pot body; a pot cover, the pot cover being arranged on the pot body; an exhaust assembly, the exhaust assembly comprising a pipe body, the pipe body comprising an air inlet, a first exhaust port and a second exhaust port, a pressure limiting structure being arranged at the first exhaust port, a switch structure being arranged at the second exhaust port, the switch structure being able to close or open the second exhaust port, when the switch structure is opened, the cooking utensil exhausts air through the second exhaust port, and when the switch structure is closed, the cooking utensil exhausts air through the first exhaust port. The technical solution of the present invention solves the problem that the pressureless cooking function of the electric pressure cooker in the prior art is poor.

Description

Technical Field

[0001] The invention relates to a cooking utensil, in particular to a cooking utensil capable of realizing pressure cooking and pressure-free cooking. Background Art

[0002] Electric pressure cookers are commonly used cooking appliances. Among them, the conventional electric pressure cookers perform pressure-free cooking in the following manner: a push rod or other push-up structure pushes a pressure-limiting valve, and separates the plug of the pressure-limiting valve from the outlet of the exhaust pipe, so that the two ends of the exhaust pipe are connected to the pot body and the outside respectively. However, since the diameter of the exhaust pipe of the electric pressure cooker is reduced, the exhaust volume is insufficient, and thus pressure-free cooking cannot be truly achieved. Summary of the invention

[0003] The main purpose of the present invention is to provide a cooking device that can realize pressure cooking and pressureless cooking, so as to solve the problem that the pressureless cooking function of the electric pressure cooker in the prior art is poor.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a cooking utensil that can realize pressure cooking and pressure-free cooking, comprising: a pot body, used to hold food to be cooked, and a heating device is arranged in the pot body; a pot cover, which is arranged on the pot body; an exhaust assembly, the exhaust assembly comprises a pipe body, the pipe body comprises an air inlet, a first exhaust port and a second exhaust port, a pressure limiting structure is arranged at the first exhaust port, and a switch structure is arranged at the second exhaust port, the switch structure can close or open the second exhaust port, when the switch structure is turned on, the cooking utensil is exhausted through the second exhaust port, and when the switch structure is turned off, the cooking utensil is exhausted through the first exhaust port.

[0005] By applying the technical solution of the present invention, a first exhaust port and a second exhaust port are provided on the tube body, and the opening or closing of the second exhaust port is controlled by a switch structure, so that the cooking appliance can perform pressure cooking or pressureless cooking. Furthermore, since two exhaust ports are provided on the tube body, the second exhaust port can be provided larger, so as to achieve true pressureless cooking. Therefore, the technical solution of the present invention solves the problem that the pressureless cooking function of the electric pressure cooker in the prior art is poor.

[0006] Furthermore, the lower end of the tube body is connected to the inside of the pot body, the upper end of the tube body forms a first exhaust port, the side wall of the tube body has an exhaust hole, the exhaust hole forms a second exhaust port, and the pressure limiting structure is a pressure limiting valve arranged at the upper end of the tube body.

[0007] Further, the tube body includes a first tube body and a second tube body which are nested with each other, wherein the first tube body is fixedly arranged on the pot cover, the second tube body can move relative to the first tube body, the pressure limiting valve is arranged on the top end of the second tube body, the exhaust hole is arranged on the side wall of the first tube body and / or the side wall of the second tube body, and the side wall of the second tube body and / or the side wall of the first tube body form a switch structure, wherein the second tube body has a first exhaust position and a second exhaust position relative to the first tube body, when the second tube body is in the first exhaust position, the exhaust hole is blocked, and the exhaust assembly is in the first exhaust state, and when the second tube body is in the second exhaust position, the exhaust hole is opened, and the exhaust assembly is in the second exhaust state.

[0008] Furthermore, the cooking appliance further comprises a driving mechanism and a transmission mechanism connected to each other, the transmission mechanism cooperates with the second tube body, and the driving mechanism drives the transmission mechanism to move so that the second tube body moves relative to the first tube body.

[0009] Furthermore, the exhaust assembly also includes an elastic member, which is arranged between the first tube body and the second tube body. The elastic member applies elastic force to the second tube body and keeps the second tube body in the first exhaust position. The driving mechanism drives the second tube body to move from the first exhaust position to the second exhaust position.

[0010] Furthermore, the exhaust assembly also includes a mounting seat, which is provided with a mounting through hole. The mounting seat is sleeved outside the first tube body through the mounting through hole, the second tube body is sleeved outside the first tube body, and the lower end of the second tube body is connected to the mounting seat, wherein a positioning protrusion is provided on the outer wall of the first tube body, and the two ends of the elastic member are respectively abutted against the positioning protrusion and the mounting seat.

[0011] Furthermore, the exhaust hole is arranged on the outer side wall of the second tube body, and the side wall of the first tube body forms a switch structure. When the second tube body is in the first exhaust position, the first tube body blocks the exhaust hole, and the driving mechanism pushes the mounting seat and moves the second tube body upward to move the second tube body to the second exhaust position. When the second tube body is in the second exhaust position, the first tube body avoids the exhaust hole.

[0012] Furthermore, the second tube body includes a small diameter section, a transition section and a large diameter section which are connected in sequence, the pressure limiting valve sleeve is arranged outside the small diameter section, the inner diameter of the large diameter section is larger than the outer diameter of the first tube body, the large diameter section is sleeved outside the first tube body, and the lower end of the large diameter section is connected to the mounting seat, wherein the exhaust hole is arranged on the transition section, and the upper end of the side wall of the first tube body forms a switch structure, and when the second tube body is in the first exhaust position, the upper end of the side wall of the first tube body abuts against the inner wall of the transition section to close the exhaust hole.

[0013] Furthermore, a sealing structure is provided at the upper end of the first tube body, and when the second tube body is in the first exhaust position, the sealing structure blocks the exhaust hole.

[0014] Furthermore, the mounting seat includes a bottom wall and an annular side wall connected to the bottom wall, the mounting through hole is arranged on the bottom wall, and the lower end of the large diameter section and the annular side wall are connected together by a threaded structure.

[0015] Furthermore, the transmission mechanism includes a sliding member, which is movably arranged below the second tube body, and the sliding member includes a pushing protrusion, wherein during the sliding process of the sliding member, the pushing protrusion pushes the lower surface of the second tube body to move the second tube body from the first exhaust position to the second exhaust position.

[0016] Furthermore, the sliding member is provided with an avoidance groove which passes through the upper and lower surfaces of the sliding member, and the first tube body is penetrated in the avoidance groove so that the sliding member can abut against both sides of the bottom surface of the second tube body.

[0017] Furthermore, the cooking utensil further comprises a guide post, which is fixedly arranged on the pot cover and penetrates the avoidance groove, and the guide post and the first tube body define the sliding direction of the sliding part.

[0018] Further, in the sliding direction of the sliding member, the end of the pushing protrusion is provided with a guiding inclined surface.

[0019] Furthermore, the driving mechanism includes a driving member, and the driving member drives the sliding member to move along a straight line.

[0020] Furthermore, the transmission mechanism also includes a slide groove portion connected to the end of the sliding member, a guide groove is arranged on the slide groove portion, and an extension direction of the guide groove and a sliding direction of the sliding member have a preset angle, wherein the driving member includes a rotating rod, and a connecting protrusion is arranged at the end of the rotating rod, and the connecting protrusion is embedded in the guide groove. During the rotation of the rotating rod, the connecting protrusion slides in the guide groove to drive the sliding member to move in a straight line.

[0021] Furthermore, the driving mechanism also includes a handle arranged on the pot cover and a rotating seat arranged in the pot cover, and the handle and the rotating rod are both connected to the rotating seat so that the rotating rod can be driven to rotate synchronously when the handle is rotated.

[0022] Furthermore, the pot body is provided with pot teeth, the pot lid includes a locking cover, the locking cover is provided with cover teeth, and the rotating seat is connected to the locking cover so that the locking cover can be driven to rotate synchronously when the handle is turned, wherein, when the handle is turned and the locking cover is driven to rotate until the cover teeth and the pot teeth are locked with each other, the exhaust hole is closed, and when the handle is turned and the locking cover is driven to rotate until the cover teeth and the pot teeth are misaligned with each other, the exhaust hole is opened.

[0023] Furthermore, the pot cover includes an inner liner, a locking cover is arranged below the inner liner, and the lower end of the first tube body passes through the inner liner and the locking cover and is connected to the pot body.

[0024] Furthermore, the cooking appliance is an electric pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 A schematic structural diagram of a cooking appliance according to a first embodiment of the present invention is shown;

[0027] Figure 2 Shows Figure 1 Exploded diagram of cooking utensils;

[0028] Figure 3 Shows Figure 2 The enlarged schematic diagram at A in the middle;

[0029] Figure 4 Shows Figure 1 A schematic diagram of the structure of the transmission part of the cooking utensil;

[0030] Figure 5 Shows Figure 1 A schematic structural diagram of the inner lining of the pot cover when the second tube body of the cooking utensil is in the first exhaust position;

[0031] Figure 6 Shows Figure 5 The enlarged schematic diagram of point B in the middle;

[0032] Figure 7 Shows Figure 5 A schematic cross-sectional view of a pot lid of a cooking utensil;

[0033] Figure 8 Shows Figure 7 The enlarged schematic diagram at C in the middle;

[0034] Fig. 9 Shows Figure 1 A schematic diagram of the structure of the inner lining of the pot cover when the second tube body of the cooking utensil is in the second exhaust position;

[0035] Fig.10 Shows Fig. 9 The enlarged schematic diagram at D in the middle;

[0036] Fig.11 Shows Fig. 9 A schematic cross-sectional view of a pot lid of a cooking utensil;

[0037] Fig.12 Shows Fig.11 An enlarged schematic diagram of the cooking utensil at point E;

[0038] Fig.13 A schematic structural diagram of a transmission structure of a cooking appliance according to a second embodiment of the present invention is shown;

[0039] Fig.14 A schematic structural diagram of a transmission structure of a cooking appliance according to a third embodiment of the present invention is shown;

[0040] Fig.15 Shows Fig.14 A schematic diagram of the structure of the exhaust assembly of the cooking appliance from a bottom side perspective;

[0041] Fig.16 A schematic structural diagram of a locking cover of a cooking utensil according to a fourth embodiment of the present invention is shown;

[0042] Fig.17 Shows Fig.16 A schematic diagram of the structure of the inner lining of the cooking utensil;

[0043] Fig.18 Shows Fig.17 The enlarged schematic diagram at F in the middle;

[0044] Fig.19 Shows Fig.16 A schematic diagram of the cooperation between the lock cover, the drive mechanism and the exhaust assembly when the second tube body of the cooking appliance is in the first exhaust position;

[0045] Fig. 20 Shows Fig.16 A schematic diagram of the structure of the cooking device when the second tube moves from the first exhaust position to the second exhaust position;

[0046] Fig.21 Shows Fig. 20 The enlarged schematic diagram at G in the middle; and

[0047] Fig. 22 Shows Fig. 20 Schematic diagram of the cooperation between the locking cover, driving mechanism and exhaust assembly of the cooking appliance.

[0048] The above drawings include the following reference numerals:

[0049] 10. pot body; 11. pot teeth; 20. pot cover; 21. lining; 211. arc groove; 22. lock cover; 221. cover teeth; 222. lock cover body; 223. connecting column; 30. exhaust assembly; 31. first tube body; 311. positioning convex edge; 32. second tube body; 321. small diameter section; 322. transition section; 323. large diameter section; 33. pressure limiting valve; 34. exhaust hole; 35. elastic member; 36. mounting seat; 361. mounting through hole; 362. bottom wall; 363. annular side wall; 37. sealing structure; 40. driving mechanism; 41. sliding member; 411. push-up protrusion; 412. avoidance groove; 413. guiding inclined surface; 42. driving member; 421. connecting protrusion; 43. slide groove; 431, guide groove; 432, first groove section; 433, second groove section; 434, transition connecting section; 50, handle; 60, rotating seat; 70, positioning structure; 71, positioning protrusion; 72, positioning groove. DETAILED DESCRIPTION

[0050] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0053] like Figures 1 to 3As shown, the cooking utensil capable of pressure cooking and pressureless cooking in the first embodiment includes a pot body 10, a pot cover 20, an exhaust assembly 30 and a driving mechanism 40. The pot body 10 is used to hold the food to be cooked, and a pot tooth 11 is arranged on the pot body 10. The pot cover 20 is arranged on the pot body 10, and the pot cover 20 includes a locking cover 22, and a cover tooth 221 is arranged on the locking cover 22. The exhaust assembly 30, the exhaust assembly 30 includes a pipe body, and the pipe body includes an air inlet, a first exhaust port and a second exhaust port. A pressure limiting structure is arranged at the first exhaust port, and a switch structure is arranged at the second exhaust port, and the switch structure can close or open the second exhaust port. When the switch structure is opened, the cooking utensil exhausts air through the second exhaust port, and when the switch structure is closed, the cooking utensil exhausts air through the first exhaust port. The driving mechanism 40, the driving mechanism 40 is connected to the locking cover 22 and the switch structure. When the driving mechanism 40 drives the locking cover 22 to rotate until the cover tooth 221 and the pot tooth 11 are locked with each other, the switch structure closes the second exhaust port. The driving mechanism 40 drives the locking cover 22 to rotate until the cover teeth 221 and the pot teeth 11 are misaligned with each other, and the switch structure opens the second exhaust port.

[0054] By applying the technical solution of this embodiment, a first exhaust port and a second exhaust port are provided on the tube body, and the opening or closing of the second exhaust port is controlled by the switch structure, so that the cooking appliance can perform pressure cooking or pressure-free cooking. Furthermore, since two exhaust ports are provided on the tube body, the second exhaust port can be set larger, so as to achieve true pressure-free cooking. Furthermore, the driving mechanism drives the locking cover and the switch structure at the same time, and when the first exhaust port is used for exhaust, that is, pressure cooking is performed, the cover teeth and the pot cover are locked with each other, thereby ensuring cooking safety. Therefore, the technical solution of this embodiment solves the problem that the pressure-free cooking function of the electric pressure cooker in the prior art is poor.

[0055] like Figure 3 As shown, in the technical solution of the first embodiment, the lower end of the tube body is connected to the pot body 10, the upper end of the tube body forms a first exhaust port, the side wall of the tube body has an exhaust hole 34, the exhaust hole 34 forms a second exhaust port, and the pressure limiting structure is a pressure limiting valve 33 arranged at the upper end of the tube body. Specifically, when the switch structure closes the second exhaust port, the steam in the pot body 10 is exhausted through the upper end of the tube body. Since the pressure limiting valve 33 is arranged at the upper end of the tube body, the cooking appliance performs a pressure cooking mode at this time. When the switch structure opens the second exhaust port, the resistance of the steam at the second exhaust port is much smaller than the resistance at the first exhaust port, so the cooking appliance performs a pressure-free cooking at this time.

[0056] like Figures 5 to 12As shown, in the technical solution of the first embodiment, the tube body includes a first tube body 31 and a second tube body 32 which are nested with each other. The first tube body 31 is fixedly arranged on the pot cover 20, the second tube body 32 can move relative to the first tube body 31, and the pressure limiting valve 33 is arranged at the top of the second tube body 32. The exhaust hole 34 is arranged on the side wall of the first tube body 31 and / or the side wall of the second tube body 32, and the side wall of the second tube body 32 and / or the side wall of the first tube body 31 form a switch structure. The second tube body 32 has a first exhaust position and a second exhaust position relative to the first tube body 31. When the second tube body 32 is in the first exhaust position, the exhaust hole 34 is blocked, and the exhaust assembly 30 is in the first exhaust state. When the second tube body 32 is in the second exhaust position, the exhaust hole 34 is opened, and the exhaust assembly 30 is in the second exhaust state. Specifically, in this embodiment, the exhaust hole 34 is arranged on the outer side wall of the second tube body 32, that is, during the relative movement of the first tube body 31 and the second tube body 32 up and down, the side wall of the first tube body 31 can block the exhaust hole 34 or open the exhaust hole 34. That is, in the structure of the first embodiment, the side wall of the first tube body 31 forms the above-mentioned switch structure. In addition, those skilled in the art can understand that the above-mentioned exhaust hole can also be arranged on the side wall of the first tube body 31, in which case, the side wall of the second tube body 32 forms the above-mentioned switch structure. In another embodiment not shown, the exhaust hole 34 can be arranged on the side wall of the first tube body 31 and the side wall of the second tube body 32, that is, during the relative movement of the first tube body 31 and the second tube body up and down, when the two exhaust holes 34 are aligned with each other, the second exhaust port is opened. When the two exhaust holes 34 are misaligned with each other, the second exhaust port is closed. In the above-mentioned embodiment, the side wall of the first tube body 31 and the side wall of the second tube body 32 jointly form the above-mentioned switch structure.

[0057] Of course, in an embodiment not shown, the switch structure may also be a valve, a solenoid valve, various commonly used switch components, etc., which are arranged at the exhaust hole 34 .

[0058] like Figure 4 As shown, in the technical solution of the second embodiment, the cooking appliance further includes a transmission mechanism connected to the driving mechanism 40, the transmission mechanism cooperates with the second tube body 32, and the driving mechanism 40 drives the transmission mechanism to move so that the second tube body 32 moves relative to the first tube body 31. Specifically, the driving mechanism 40 drives the transmission mechanism to move, and during the movement, the transmission mechanism drives the second tube body 32 to move up and down, thereby switching the second tube body 32 between the first exhaust position and the second exhaust position. In fact, during the up and down movement of the second tube body 32, the side wall of the first tube body 31 blocks or opens the exhaust hole 34.

[0059] like Figures 5 to 12As shown, in the technical solution of the first embodiment, the exhaust assembly 30 further includes an elastic member 35, which is disposed between the first tube body 31 and the second tube body 32. The elastic member 35 applies an elastic force to the second tube body 32 and keeps the second tube body 32 in the first exhaust position, and the driving mechanism 40 drives the second tube body 32 to move from the first exhaust position to the second exhaust position. Specifically, the driving mechanism 40 applies an upward force toward the second tube body 32, so that the second tube body 32 overcomes the elastic force of the elastic member 35 and moves upward to the second exhaust position. When the driving mechanism 40 does not apply a driving force to the second tube body 32, the elastic member 35 causes the second tube body 32 to move downward and reset to the first exhaust position.

[0060] like Figure 8 As shown, in the technical solution of the first embodiment, the exhaust assembly 30 further includes a mounting seat 36, and a mounting through hole 361 is provided on the mounting seat 36. The mounting seat 36 is sleeved outside the first tube body 31 through the mounting through hole 361, and the second tube body 32 is sleeved outside the first tube body 31, and the lower end of the second tube body 32 is connected to the mounting seat 36, wherein a positioning convex edge 311 is provided on the outer wall of the first tube body 31, and the two ends of the elastic member 35 are respectively abutted against the positioning convex edge 311 and the mounting seat 36. Specifically, the mounting seat 36 is a cylindrical structure with an open upper end, and the mounting through hole 361 is provided on the bottom wall of the mounting seat 36. Preferably, the elastic member 35 is a spring, and the above-mentioned arrangement enables the spring to continuously apply a downward force to the second tube body 32 and provide a reset force.

[0061] like Figure 8 As shown, in the technical solution of the first embodiment, the exhaust hole 34 is arranged on the outer side wall of the second tube body 32, and the side wall of the first tube body 31 forms a switch structure. When the second tube body 32 is in the first exhaust position, the first tube body 31 blocks the exhaust hole 34, and the driving mechanism 40 pushes the mounting seat 36 and moves the second tube body 32 upward, so that the second tube body 32 moves to the second exhaust position. When the second tube body 32 is in the second exhaust position, the first tube body 31 avoids the exhaust hole 34. Of course, as described above, the exhaust hole 34 can also be arranged on the outer side wall of the first tube body 31, or the exhaust hole 34 can be arranged on both the outer side wall of the first tube body 31 and the outer side wall of the second tube body 32.

[0062] like Figure 8As shown, in the technical solution of the first embodiment, the second tube body 32 includes a small diameter section 321, a transition section 322 and a large diameter section 323 which are connected in sequence. The pressure limiting valve 33 is sleeved outside the small diameter section 321, the inner diameter of the large diameter section 323 is larger than the outer diameter of the first tube body 31, the large diameter section 323 is sleeved outside the first tube body 31, and the lower end of the large diameter section 323 is connected to the mounting seat 36. Among them, the exhaust hole 34 is arranged on the transition section 322, and the upper end of the side wall of the first tube body 31 forms a switch structure. When the second tube body 32 is in the first exhaust position, the upper end of the side wall of the first tube body 31 abuts against the inner wall of the transition section 322 to close the exhaust hole 34. Specifically, the inner diameter of the large diameter section 323 is relatively large, so that the lower end of the second tube body 32 can be sleeved outside the first tube body 31. The inner diameter of the small diameter section 321 is relatively small, so that pressure cooking can be achieved. The transition section 322 connects the large diameter section 323 and the small diameter section 321. The exhaust hole 34 is arranged on the transition section 322, so that the second tube body 32 can be separated from the exhaust hole 34 by slightly moving upward, thereby ensuring the stability of switching between pressure cooking and non-pressure cooking. Furthermore, in order to better block the exhaust hole 34, the inner wall surface of the transition section 322 is a wall surface extending horizontally, thereby preventing the exhaust hole 34 from leaking due to the tilt of the wall surface.

[0063] like Figure 8 As shown, in the technical solution of the first embodiment, a sealing structure 37 is provided at the upper end of the first tube body 31, and when the second tube body 32 is in the first exhaust position, the sealing structure 37 blocks the exhaust hole 34. Specifically, the sealing structure 37 is a sealing sleeve, which is sleeved on the upper end of the first tube body 31. At the same time, an air hole is provided in the middle of the sealing sleeve, so as to ensure that the exhaust assembly 30 can achieve normal exhaust.

[0064] like Figure 8 As shown, in the technical solution of the first embodiment, the mounting seat 36 includes a bottom wall 362 and an annular side wall 363 connected to the bottom wall 362. The mounting through hole 361 is provided on the bottom wall 362, and the lower end of the large diameter section 323 and the annular side wall 363 are connected together by a threaded structure. Specifically, the above structure makes the exhaust assembly 30 easy to assemble, disassemble and install.

[0065] like Figure 4 and Figure 6 As shown, in the technical solution of the first embodiment, the transmission mechanism includes a sliding member 41, and the sliding member 41 is movably arranged below the second tube body 32. The sliding member 41 includes a pushing protrusion 411, wherein during the sliding process of the sliding member 41, the pushing protrusion 411 pushes the lower surface of the second tube body 32 to move the second tube body 32 from the first exhaust position to the second exhaust position. Specifically, from Figure 6 and Fig.10It can be seen that when the sliding member 41 slides toward the exhaust assembly 30, the push-up protrusion 411 applies an upward force to the second tube body 32 and moves the second tube body 32 to the second exhaust position. When the push-up protrusion 411 slides back to the position away from the exhaust assembly 30, the second tube body 32 is reset to the first exhaust position under the action of the elastic member 35.

[0066] like Figure 6 and Fig.10 As shown, in the technical solution of the first embodiment, the sliding member 41 is provided with an avoidance groove 412, which passes through the upper and lower surfaces of the sliding member 41, and the first tube body 31 is penetrated in the avoidance groove 412, so that the sliding member 41 can abut against both sides of the bottom surface of the second tube body 32. Specifically, the extension direction of the avoidance groove 412 is the sliding direction of the sliding member 41. The above structure enables the sliding member 41 to push the second tube body 32 upward from both sides of the mounting seat 36, thereby ensuring that the second tube body 32 rises steadily and preventing the exhaust hole 34 from leaking due to the deflection of the second tube body 32.

[0067] like Figure 6 and Fig.10 As shown, in the technical solution of the first embodiment, the cooking appliance further comprises a guide post, which is fixedly arranged on the pot cover 20 and penetrates the avoidance groove 412, and the guide post and the first tube body 31 define the sliding direction of the sliding member 41. Specifically, the first tube body 31 and the guide post define the sliding member 41 to slide in a straight line direction.

[0068] As shown in Figure 4, Figure 6 and Fig.10 As shown, in the technical solution of the first embodiment, a guiding slope 413 is provided at the end of the pushing protrusion 411 along the sliding direction of the sliding member 41. The guiding slope 413 prevents the sliding member 41 from getting stuck with the mounting seat 36 during the sliding process.

[0069] like Figure 6 and Fig.10 As shown, in the technical solution of the first embodiment, the driving mechanism 40 includes a driving member 42, and the driving member 42 drives the sliding member 41 to move along a straight line. The driving member 42 can be a conventional driving structure such as a solenoid valve and a motor.

[0070] like Figure 6 and Fig.10As shown, in the technical solution of the first embodiment, the transmission mechanism also includes a slide groove portion 43 connected to the end of the sliding member 41, and a guide groove 431 is provided on the slide groove portion 43, and the extension direction of the guide groove 431 and the sliding direction of the sliding member 41 have a preset angle. Among them, the driving member 42 includes a rotating rod, and a connecting protrusion 421 is provided at the end of the rotating rod, and the connecting protrusion 421 is embedded in the guide groove 431. During the rotation of the rotating rod, the connecting protrusion 421 slides in the guide groove 431 to drive the sliding member 41 to move along a straight line. Preferably, the extension direction of the guide groove 431 and the sliding direction of the sliding member 41 are arranged perpendicularly. When the rotating rod rotates, a distance difference is generated between the starting position of the connecting protrusion 421 in the sliding direction of the sliding member 41. Therefore, when the connecting protrusion 421 slides in the guide groove 431, the above distance is converted into the forward and backward movement of the sliding member 41. When the rotating rod swings in different directions, the sliding member 41 swings forward or backward respectively.

[0071] like Figures 5 to 12 As shown, in the technical solution of the first embodiment, the driving mechanism 40 also includes a handle 50 disposed on the pot cover 20 and a rotating seat 60 disposed inside the pot cover 20. The handle 50 and the rotating rod are both connected to the rotating seat 60 so that the rotating rod can be driven to rotate synchronously when the handle 50 is rotated, wherein the rotating seat 60 is connected to the lock cover 22 so that the lock cover 22 can be driven to rotate synchronously when the handle 50 is rotated. Specifically, the above structure enables that when the user rotates the handle 50, the locking cover 22 is driven to rotate while the rotating rod is also driven to rotate. Furthermore, when the user rotates the handle and causes the cover teeth 221 and the pot teeth 11 to interlock with each other, the rotating rod is driven to rotate. Fig.10 The position swings to Figure 6 At this time, the push-up protrusion 411 is misaligned with the second tube body 32, and the second tube body is in the first exhaust position. At this time, the cooking utensil is in a state of pressurized cooking, and the cover teeth 221 and the pot teeth 11 are locked with each other to ensure cooking safety. When the user rotates the handle in the opposite direction and separates the cover teeth 221 and the pot teeth 11 from each other, the rotating rod is Figure 6 The position swings to Fig.10 At this time, the push-up protrusion 411 is located below the second tube body 32 and pushes the second tube body 32 to move upward. At this time, the second tube body 32 is in the second exhaust position, and the cooking utensil is in a pressure-free cooking state.

[0072] Furthermore, the above structure can also release the pressure in the pot body 10 when the pot cover 20 is unlocked after cooking is finished.

[0073] like Figure 7As shown, in the technical solution of the first embodiment, the pot cover 20 includes an inner lining 21, a locking cover 22 is arranged below the inner lining 21, and the lower end of the first tube 31 passes through the inner lining 21 and the locking cover 22 and communicates with the pot body 10. Specifically, the first tube 31 is fixedly arranged on the inner lining 21. A mounting hole for avoiding the first tube 31 is arranged in the middle of the locking cover 22.

[0074] Preferably, the above-mentioned cooking utensil is an electric pressure cooker. Of course, some open flame cookers that adopt pressure limiting valve exhaust can also adopt the above-mentioned structure.

[0075] like Fig.13 As shown, the difference between the second embodiment and the first embodiment of the cooking device according to the present application is that the structure of the guide groove 431 is different. Specifically, the guide groove 431 includes two groove sections that are offset along the vertical direction and the sliding direction of the sliding member 41. The above structure enables the sliding distance of the sliding member 41 to be longer when the connecting protrusion 421 slides in the guide groove 431. The above structure can make the structure more compact and ensure the stability of switching between the pressure cooking mode and the pressure-free cooking mode.

[0076] like Fig.13 As shown, in the technical solution of the second embodiment, the guide groove 431 includes a first groove section 432, a second groove section 433 and a transition connecting section 434 connected therebetween. The first groove section 432 and the second groove section 433 are staggered. Preferably, the inner wall of the guide groove 431 is in an arc shape and prevents the connecting protrusion 421 from getting stuck during the sliding process.

[0077] like Fig.14 and Fig.15 As shown, the difference between the third embodiment of the cooking utensil according to the present application and the first embodiment is that a positioning structure is provided between the exhaust assembly 30 and the sliding member 41. The positioning structure enables the exhaust assembly to remain in a state of pressure-free cooking. Specifically, the positioning structure 70 includes a positioning groove provided on the bottom wall 362 and a positioning protrusion provided on the push-up protrusion 411 of the sliding member 41. When the sliding member 41 moves to the point where the push-up protrusion 411 is located below the mounting seat 36, the positioning protrusion 71 is embedded in the positioning groove 72, so that the second tube body 32 can be maintained in the second exhaust position, and prevents the second tube body 32 from being reset incorrectly due to the influence of the elastic member 35.

[0078] like Figures 16 to 22As shown, the difference between the fourth embodiment and the first embodiment of the cooking utensil according to the present application is that the driving method of the sliding member 41 is different. Specifically, in the fourth embodiment, the locking cover 22 directly drives the sliding member 41 to slide when it rotates. Specifically, the locking cover 22 includes a locking cover body 222 and a connecting column 223 arranged on the upper surface of the locking cover body 222. Among them, the cover teeth 221 are arranged at the lower edge of the side of the locking cover body 222. An arc groove 211 is arranged on the inner lining, and the connecting column 223 passes through the arc groove 211 upwards and then directly passes through the guide groove 431. Combined with Fig.19 and Fig. 22 It can be seen that when the lock cover 22 rotates, the lock cover 22 can directly drive the second tube 32 to switch between the first row position and the second exhaust position. Compared with the first embodiment, in the technical solution of the fourth embodiment, when the lock cover 22 rotates, the slider 41 is directly driven to slide. Since there are fewer intermediate transmission parts, the driving accuracy can be guaranteed, and the second tube 32 can be guaranteed to move in a predetermined manner, thereby ensuring the switching stability between pressure cooking and pressure-free cooking.

[0079] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0080] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0081] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0082] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooking appliance capable of achieving pressure cooking and pressureless cooking, characterized in that: include: A pot body (10) is used to hold food to be cooked, and a heating device is provided in the pot body; A pot cover (20), wherein the pot cover (20) is arranged on the pot body (10); An exhaust assembly (30), the exhaust assembly (30) comprising a pipe body, the pipe body comprising an air inlet, a first exhaust port and a second exhaust port, the first exhaust port being provided with a pressure limiting structure, the second exhaust port being provided with a switch structure, the switch structure being capable of closing or opening the second exhaust port, the cooking utensil being exhausted through the second exhaust port when the switch structure is opened, and the cooking utensil being exhausted through the first exhaust port when the switch structure is closed; The area of ​​the second exhaust port is larger than the area of ​​the first exhaust port; The lower end of the tube body is connected to the inside of the pot body (10), the upper end of the tube body forms the first exhaust port, the side wall of the tube body has an exhaust hole (34), and the pressure limiting structure is a pressure limiting valve (33) arranged at the upper end of the tube body.

2. The cooking device according to claim 1, characterized in that: The exhaust hole (34) forms the second exhaust port.

3. The cooking device according to claim 2, characterized in that: The tube body comprises a first tube body (31) and a second tube body (32) which are nested with each other, wherein the first tube body (31) is fixedly arranged on the pot cover (20), the second tube body (32) is movable relative to the first tube body (31), the pressure limiting valve (33) is arranged at the top end of the second tube body (32), the exhaust hole (34) is arranged on the side wall of the first tube body (31) and / or the side wall of the second tube body (32), and the side wall of the second tube body (32) and / or the side wall of the first tube body (31) form the switch structure, The second tube body (32) has a first exhaust position and a second exhaust position relative to the first tube body (31); when the second tube body (32) is in the first exhaust position, the exhaust hole (34) is blocked and the exhaust component (30) is in the first exhaust state; when the second tube body (32) is in the second exhaust position, the exhaust hole (34) is opened and the exhaust component (30) is in the second exhaust state.

4. The cooking device according to claim 3, characterized in that: The cooking appliance further comprises a driving mechanism (40) and a transmission mechanism which are connected to each other, wherein the transmission mechanism cooperates with the second tube body (32), and the driving mechanism (40) drives the transmission mechanism to move so that the second tube body (32) moves relative to the first tube body (31).

5. The cooking device according to claim 4, characterized in that: The exhaust assembly (30) further comprises an elastic member (35), wherein the elastic member (35) is arranged between the first tube body (31) and the second tube body (32), wherein the elastic member (35) applies an elastic force to the second tube body (32) and keeps the second tube body (32) at the first exhaust position, and the driving mechanism (40) drives the second tube body (32) to move from the first exhaust position to the second exhaust position.

6. The cooking device according to claim 5, characterized in that: The exhaust assembly (30) further comprises a mounting seat (36), the mounting seat (36) being provided with a mounting through hole (361), the mounting seat (36) being sleeved on the outside of the first tube body (31) through the mounting through hole (361), the second tube body (32) being sleeved on the outside of the first tube body (31), and the lower end of the second tube body (32) being connected to the mounting seat (36), wherein a positioning protrusion (311) is provided on the outer side wall of the first tube body (31), and the two ends of the elastic member are respectively disposed in contact with the positioning protrusion (311) and the mounting seat (36).

7. The cooking device according to claim 6, characterized in that: The exhaust hole (34) is arranged on the outer side wall of the second tube body (32); the side wall of the first tube body (31) forms the switch structure; when the second tube body (32) is in a first exhaust position, the first tube body (31) blocks the exhaust hole (34); the driving mechanism (40) pushes the mounting seat (36) and moves the second tube body (32) upward, so that the second tube body (32) moves to the second exhaust position; when the second tube body (32) is in the second exhaust position, the first tube body (31) avoids the exhaust hole (34).

8. The cooking device according to claim 6, characterized in that: The second tube body (32) comprises a small diameter section (321), a transition section (322) and a large diameter section (323) which are connected in sequence; the pressure limiting valve (33) is sleeved outside the small diameter section (321); the inner diameter of the large diameter section (323) is larger than the outer diameter of the first tube body (31); the large diameter section (323) is sleeved outside the first tube body (31); the lower end of the large diameter section (323) is connected to the mounting seat (36); the exhaust hole (34) is arranged on the transition section (322); the upper end of the side wall of the first tube body (31) forms the switch structure; when the second tube body (32) is in the first exhaust position, the upper end of the side wall of the first tube body (31) abuts against the inner wall of the transition section (322) to close the exhaust hole (34).

9. The cooking device according to claim 8, characterized in that: A sealing structure (37) is provided at the upper end of the first tube body (31), and when the second tube body (32) is in the first exhaust position, the sealing structure (37) blocks the exhaust hole (34).

10. The cooking appliance according to claim 8, characterized in that The mounting seat (36) comprises a bottom wall (362) and an annular side wall (363) connected to the bottom wall (362); the mounting through hole (361) is arranged on the bottom wall (362); and the lower end of the large diameter section (323) and the annular side wall (363) are connected together via a threaded structure.

11. The cooking device according to claim 4, characterized in that: The transmission mechanism comprises a sliding member (41), wherein the sliding member (41) is movably arranged below the second tube body (32), and the sliding member (41) comprises a pushing protrusion (411), wherein during the sliding process of the sliding member (41), the pushing protrusion (411) pushes the lower surface of the second tube body (32) to move the second tube body (32) from the first exhaust position to the second exhaust position.

12. The cooking device according to claim 11, characterized in that: The sliding member (41) is provided with an avoidance groove (412), the avoidance groove (412) passes through the upper and lower surfaces of the sliding member (41), and the first tube body (31) is inserted into the avoidance groove (412), so that the sliding member (41) can abut against both sides of the bottom surface of the second tube body (32).

13. The cooking device according to claim 12, characterized in that: The cooking utensil further comprises a guide column, which is fixedly arranged on the pot cover (20) and penetrates the avoidance groove (412), and the guide column and the first tube body (31) define the sliding direction of the sliding member (41).

14. The cooking appliance according to claim 11, characterized in that In the sliding direction of the sliding member (41), a guiding inclined surface (413) is provided at the end of the pushing protrusion (411).

15. The cooking appliance according to claim 11, characterized in that The driving mechanism (40) comprises a driving member (42), and the driving member (42) drives the sliding member (41) to move along a straight line.

16. The cooking appliance according to claim 15, characterized in that The transmission mechanism also includes an end slide groove portion (43) connected to the sliding member (41), and a guide groove (431) is provided on the slide groove portion (43). The extension direction of the guide groove (431) and the sliding direction of the sliding member (41) have a preset angle, wherein the driving member (42) includes a rotating rod, and a connecting protrusion (421) is provided at the end of the rotating rod, and the connecting protrusion (421) is embedded in the guiding groove (431). When the rotating rod rotates, the connecting protrusion (421) slides in the guiding groove (431) to drive the sliding member (41) to move along a straight line.

17. The cooking appliance according to claim 16, characterized in that The driving mechanism (40) further comprises a handle (50) arranged on the pot cover (20) and a rotating seat (60) arranged inside the pot cover (20); the handle (50) and the rotating rod are both connected to the rotating seat (60) so that when the handle (50) is rotated, the rotating rod can be driven to rotate synchronously.

18. The cooking appliance according to claim 17, characterized in that The pot body (10) is provided with pot teeth (11), the pot cover (20) comprises a locking cover (22), the locking cover (22) is provided with cover teeth (221), the rotating seat (60) is connected to the locking cover (22), so that when the handle (50) is rotated, the locking cover (22) can be driven to rotate synchronously. When the handle (50) is rotated and the locking cover (22) is driven to rotate until the cover teeth (221) and the pot teeth (11) are locked with each other, the exhaust hole (34) is closed; when the handle (50) is rotated and the locking cover (22) is driven to rotate until the cover teeth (221) and the pot teeth (11) are misaligned with each other, the exhaust hole (34) is opened.

19. The cooking appliance according to claim 18, characterized in that The pot cover (20) comprises an inner lining (21), the locking cover (22) is arranged below the inner lining (21), and the lower end of the first tube (31) passes through the inner lining (21) and the locking cover (22) and is connected to the inside of the pot body (10).

20. The cooking appliance according to claim 1, characterized in that The cooking utensil is an electric pressure cooker.

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