Cooking appliances that enable both pressure cooking and non-pressure cooking

Abstract

The present invention provides a cooking appliance capable of both pressure- and pressure-free cooking, comprising: a pot body for holding food to be cooked, the pot body being provided with pot teeth; a pot lid disposed on the pot body, the pot lid including a locking cover provided with lid teeth; an exhaust assembly comprising a tubular body including 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 capable of closing or opening the second exhaust port; and a drive mechanism connected to the locking cover and the switch structure. When the driving mechanism drives the locking cover to rotate until the lid teeth and the pot teeth interlock, the switch structure closes the second exhaust port. When the driving mechanism drives the locking cover to rotate until the lid teeth and the pot teeth are misaligned, the switch structure opens the second exhaust port. The technical solution of the present invention solves the problem of poor pressure-free cooking performance of conventional electric pressure cookers.

Description

Technical Field

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

[0002] Electric pressure cookers are common cooking appliances. Prior art electric pressure cookers achieve pressureless cooking by using a push rod or other push-up structure to push against a pressure-limiting valve, separating the valve plug from the exhaust pipe opening. This allows the exhaust pipe to communicate with the pot and the outside world, respectively. However, due to the reduced diameter of the exhaust pipe, the exhaust volume is insufficient, making true pressureless cooking impossible. Summary of the Invention

[0003] The main purpose of the present invention is to provide a cooking appliance 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 objectives, the present invention provides a cooking utensil that can realize pressure cooking and pressureless cooking, comprising: a pot body for holding food to be cooked, the pot body being provided with pot teeth; a pot lid, the pot lid being provided on the pot body, the pot lid comprising a locking cover, and the locking cover being provided with cover teeth; 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, 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, when the switch structure is opened, the cooking utensil is exhausted through the second exhaust port, and when the switch structure is closed, the cooking utensil is exhausted through the first exhaust port; a driving mechanism, the driving mechanism being connected to the locking cover and the switch structure, when the driving mechanism drives the locking cover to rotate until the cover teeth and the pot teeth are locked with each other, the switch structure closes the second exhaust port, and when the driving mechanism drives the locking cover to rotate until the cover teeth and the pot teeth are misaligned with each other, the switch structure opens the second exhaust port.

[0005] Using the technical solution of the present invention, a first exhaust port and a second exhaust port are provided on the tube body. The second exhaust port is controlled by a switch mechanism to open or close, thereby enabling the cooking appliance to perform either pressure cooking or pressureless cooking. Furthermore, since the tube body is provided with two exhaust ports, the second exhaust port can be larger, thus achieving true pressureless cooking. Furthermore, the drive mechanism simultaneously actuates the locking lid and the switch mechanism. When the first exhaust port is venting, i.e., pressure cooking is performed, the cover teeth and the pot lid interlock, thereby ensuring safe cooking. Therefore, the technical solution of the present invention solves the problem of poor pressureless cooking performance in existing electric pressure cookers.

[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] Furthermore, the tube body includes a first tube body and a second tube body that 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 at the top of the second tube body, and 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 includes a transmission mechanism connected to the driving mechanism, 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 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 connected in sequence, the pressure limiting valve is sleeved 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. 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 provided 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. 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 passed through 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 passes through the avoidance groove, and the guide post and the first tube body define the sliding direction of the sliding part.

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

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

[0020] Furthermore, the transmission mechanism also includes an end slide groove portion connected to the sliding member, a guide groove is provided on the slide groove portion, and the extension direction of the guide groove and the sliding direction of the sliding member have a preset angle, wherein the driving member includes a rotating rod, and a connecting protrusion is provided 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 inside the pot cover. The handle and the rotating rod are both connected to the rotating seat so that when the handle is rotated, the rotating rod can be driven to rotate synchronously. The rotating seat is connected to the lock cover so that when the handle is rotated, the lock cover can be driven to rotate synchronously.

[0022] Furthermore, the pot cover includes an inner lining, a locking cover is arranged below the inner lining, and the lower end of the first tube body passes through the inner lining and the locking cover and is communicated with the pot body.

[0023] Furthermore, the cooking appliance is an electric pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 shows a structural schematic diagram of a cooking utensil according to a first embodiment of the present invention;

[0026] Figure 2 Shown Figure 1 Exploded diagram of cooking utensils;

[0027] Figure 3 Shown Figure 2 A in the middle is an enlarged schematic diagram;

[0028] Figure 4 Shown Figure 1 A schematic diagram of the structure of the transmission part of the cooking appliance;

[0029] Figure 5 Shown Figure 1 A schematic structural diagram of the inner lining of the pot lid when the second tube body of the cooking utensil is in the first exhaust position;

[0030] Figure 6 Shown Figure 5 The enlarged schematic diagram of point B in the middle;

[0031] Figure 7 Shown Figure 5 A schematic cross-sectional view of a pot lid of a cooking utensil;

[0032] Figure 8 Shown Figure 7 The enlarged schematic diagram of point C in the middle;

[0033] Figure 9 Shown Figure 1 A schematic structural diagram of the inner lining of the pot lid when the second tube body of the cooking utensil is in the second exhaust position;

[0034] Figure 10 Shown Figure 9 The enlarged schematic diagram of point D in the middle;

[0035] Figure 11 Shown Figure 9 A schematic cross-sectional view of a pot lid of a cooking utensil;

[0036] Figure 12 Shown Figure 11 An enlarged schematic diagram of the cooking appliance at point E;

[0037] Figure 13 A schematic structural diagram of a transmission structure of a cooking appliance according to a second embodiment of the present invention is shown;

[0038] Figure 14 A schematic structural diagram of a transmission structure of a cooking appliance according to a third embodiment of the present invention is shown;

[0039] Figure 15 Shown Figure 14 A schematic structural diagram of the exhaust assembly of the cooking appliance from a bottom side perspective;

[0040] Figure 16 A schematic structural diagram of a locking cover of a cooking utensil according to a fourth embodiment of the present invention is shown;

[0041] Figure 17 Shown Figure 16 A schematic diagram of the structure of the inner lining of the cooking utensil;

[0042] Figure 18 Shown Figure 17 The enlarged schematic diagram at F in the middle;

[0043] Figure 19 Shown Figure 16 A schematic diagram of the cooperation between the locking cover, the driving mechanism and the exhaust assembly when the second tube body of the cooking appliance is in the first exhaust position;

[0044] Figure 20 Shown Figure 16 A schematic structural diagram of the cooking utensil when the second tube moves from the first exhaust position to the second exhaust position;

[0045] Figure 21 Shown Figure 20 A magnified schematic diagram of point G in the middle; and

[0046] Figure 22 Shown Figure 20 Schematic diagram of the lock cover, drive mechanism and exhaust assembly of the cooking appliance.

[0047] The above drawings include the following reference numerals:

[0048] 10. Pot body; 11. Pot teeth; 20. Pot cover; 21. Liner; 211. Arc groove; 22. Locking cover; 221. Cover teeth; 222. Locking cover body; 223. Connecting column; 30. Exhaust assembly; 31. First tube body; 311. Positioning flange; 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; 36 2. Bottom wall; 363. Annular side wall; 37. Sealing structure; 40. Driving mechanism; 41. Sliding member; 411. Pushing protrusion; 412. Avoiding groove; 413. Guide slope; 42. Driving member; 421. Connecting protrusion; 43. Sliding groove portion; 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

[0049] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this 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.

[0050] 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, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way 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 making creative work are within the scope of protection of this application.

[0051] 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] like Figures 1 to 3As shown, the cooking device capable of both pressure- and pressure-free cooking according to the first embodiment includes a pot body 10, a lid 20, an exhaust assembly 30, and a drive mechanism 40. The pot body 10 is used to hold food to be cooked and is provided with a pot tooth 11. The lid 20 is mounted on the pot body 10 and includes a locking cover 22 with a cover tooth 221. The exhaust assembly 30 comprises a tubular body, which includes an air inlet, a first exhaust port, and a second exhaust port. The first exhaust port is provided with a pressure limiting structure, and the second exhaust port is provided with a switch structure that can close or open the second exhaust port. When the switch structure is open, the cooking device exhausts air through the second exhaust port; when the switch structure is closed, the cooking device exhausts air through the first exhaust port. The drive mechanism 40 is connected to the locking cover 22 and the switch structure. When the driving mechanism 40 rotates the locking cover 22 until the cover tooth 221 and the pot tooth 11 interlock, 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.

[0053] Using the technical solution of this embodiment, the tube body is provided with a first exhaust port and a second exhaust port. A switch mechanism controls the opening or closing of the second exhaust port, thereby enabling the cooking appliance to perform either pressure cooking or pressureless cooking. Furthermore, since the tube body is provided with two exhaust ports, the second exhaust port can be larger, thus achieving true pressureless cooking. Furthermore, the drive mechanism simultaneously actuates the locking lid and the switch mechanism. When the first exhaust port is venting, i.e., pressure cooking is performed, the cover teeth and the pot lid interlock, thereby ensuring safe cooking. Therefore, the technical solution of this embodiment solves the problem of poor pressureless cooking performance in conventional electric pressure cookers.

[0054] like Figure 3 As shown, in the technical solution of this first embodiment, the lower end of the tube body communicates with the interior of the pot body 10, the upper end of the tube body forms a first exhaust port, and the sidewall of the tube body has an exhaust hole 34, which forms a second exhaust port. The pressure limiting structure is a pressure-limiting valve 33 disposed at the upper end of the tube body. Specifically, when the switch mechanism closes the second exhaust port, steam within the pot body 10 is exhausted through the upper end of the tube body. Because the pressure-limiting valve 33 is disposed at the upper end of the tube body, the cooking appliance now operates in a pressure-controlled cooking mode. When the switch mechanism opens the second exhaust port, the steam resistance at the second exhaust port is much lower than that at the first exhaust port, so the cooking appliance now operates in a pressure-free cooking mode.

[0055] like Figures 5 to 12As shown, in the technical solution of embodiment 1, the tube body includes a first tube body 31 and a second tube body 32 that 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 vent 34 is provided on the outer wall of the second tube 32. That is, during the vertical relative movement of the first and second tubes 31, 32, the sidewall of the first tube 31 can block or open the vent 34. In other words, in the structure of Example 1, the sidewall of the first tube 31 forms the aforementioned switch structure. Furthermore, those skilled in the art will appreciate that the vent can also be provided on the sidewall of the first tube 31, in which case the sidewall of the second tube 32 forms the aforementioned switch structure. In another embodiment (not shown), vents 34 can be provided on both the sidewalls of the first and second tubes 31, 32. That is, during the vertical relative movement of the first and second tubes, when the two vents 34 align, the second vent is opened. When the two vents 34 are misaligned, the second vent is closed. In the above embodiment, the sidewalls of the first and second tubes 31 and 32 jointly form the aforementioned switch structure.

[0056] 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 .

[0057] like Figure 4 As shown, in the technical solution of the second embodiment, the cooking appliance further includes a transmission mechanism connected to a drive mechanism 40. The transmission mechanism cooperates with the second tube body 32. The drive 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 drive mechanism 40 drives the transmission mechanism to move. 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.

[0058] like Figures 5 to 12As shown, in the technical solution of Example 1, the exhaust assembly 30 also 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 maintains the second tube body 32 in the first exhaust position. The drive mechanism 40 drives the second tube body 32 from the first exhaust position to the second exhaust position. Specifically, the drive mechanism 40 applies an upward force toward the second tube body 32, thereby causing the second tube body 32 to overcome the elastic force of the elastic member 35 and move upward to the second exhaust position. When the drive 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 return to the first exhaust position.

[0059] like Figure 8 As shown, in the technical solution of embodiment 1, the exhaust assembly 30 also includes a mounting seat 36, and a mounting through hole 361 is provided on the mounting seat 36. The mounting seat 36 is sleeved on the outside of the first tube body 31 through the mounting through hole 361, and the second tube body 32 is sleeved on the outside of 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 protrusion 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 protrusion 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 setting method enables the spring to continuously apply a downward force to the second tube body 32 and provide a reset force.

[0060] like Figure 8 As shown, in the technical solution of the first embodiment, the exhaust hole 34 is provided on the outer 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. 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 provided on the outer wall of the first tube body 31, or on the outer walls of both the first tube body 31 and the second tube body 32.

[0061] like Figure 8As shown, in the technical solution of Example 1, the second tube body 32 includes a small-diameter section 321, a transition section 322, and a large-diameter section 323, which are sequentially connected. 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 sleeves outside the first tube body 31, and the lower end of the large-diameter section 323 is connected to the mounting seat 36. The exhaust hole 34 is provided in the transition section 322. 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 the inner wall of the transition section 322 to close the exhaust hole 34. Specifically, the larger inner diameter of the large-diameter section 323 allows the lower end of the second tube body 32 to sleeve outside the first tube body 31. The smaller inner diameter of the small-diameter section 321 enables pressure cooking. The transition section 322 connects the large-diameter section 323 and the small-diameter section 321. The vent 34 is located on the transition section 322, allowing the second tube 32 to be separated from the vent 34 with a slight upward movement, ensuring stability when switching between pressure- and non-pressure-controlled cooking. Furthermore, to better seal the vent 34, the inner wall of the transition section 322 extends horizontally, preventing leakage from the vent 34 due to a tilted wall.

[0062] like Figure 8 As shown, in the technical solution of this first embodiment, a sealing structure 37 is provided at the upper end of the first tube 31. When the second tube 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 that is mounted on the upper end of the first tube 31. Furthermore, an air hole is provided in the middle of the sealing sleeve to ensure that the exhaust assembly 30 can properly exhaust air.

[0063] like Figure 8 As shown, in the technical solution of the first embodiment, the mounting base 36 includes a bottom wall 362 and an annular side wall 363 connected to the bottom wall 362. A mounting through hole 361 is provided in 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. Specifically, this structure facilitates the assembly, disassembly, and installation of the exhaust assembly 30.

[0064] like Figure 4 and Figure 6 As shown, in the technical solution of embodiment 1, the transmission mechanism includes a sliding member 41, which 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 Figure 10As can be seen, when the slider 41 slides toward the exhaust assembly 30, the push-up protrusion 411 exerts an upward force on the second tube 32, causing the second tube 32 to move to the second exhaust position. When the push-up protrusion 411 slides back to a position away from the exhaust assembly 30, the second tube 32 is restored to the first exhaust position under the action of the elastic member 35.

[0065] like Figure 6 and Figure 10 As shown, in the technical solution of the first embodiment, a relief groove 412 is provided on the sliding member 41. The relief groove 412 runs through the upper and lower surfaces of the sliding member 41. The first tube 31 is inserted into the relief groove 412 so that the sliding member 41 can abut against both sides of the bottom surface of the second tube 32. Specifically, the extension direction of the relief groove 412 is the sliding direction of the sliding member 41. The above structure enables the sliding member 41 to push the second tube 32 upward from both sides of the mounting seat 36, thereby ensuring the smooth rise of the second tube 32 and preventing the exhaust hole 34 from leaking due to the deflection of the second tube 32.

[0066] like Figure 6 and Figure 10 As shown, in the technical solution of the first embodiment, the cooking appliance further includes a guide post, which is fixedly mounted on the pot cover 20 and passes through the avoidance groove 412. The guide post and the first tube body 31 define the sliding direction of the slider 41. Specifically, the first tube body 31 and the guide post limit the slider 41 to slide in a straight line.

[0067] As shown in Figure 4, Figure 6 and Figure 10 As shown, in the technical solution of embodiment 1, 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.

[0068] like Figure 6 and Figure 10 As shown, in the technical solution of embodiment 1, the driving mechanism 40 includes a driving member 42, which 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, a motor, etc.

[0069] like Figure 6 and Figure 10As shown, in the technical solution of Example 1, the transmission mechanism further includes a chute portion 43 connected to the end of the slider 41. The chute portion 43 is provided with a guide groove 431. The extension direction of the guide groove 431 is at a predetermined angle with the sliding direction of the slider 41. The driving member 42 includes a rotating rod. The end of the rotating rod is provided with a connecting protrusion 421. The connecting protrusion 421 is embedded in the guide groove 431. During rotation of the rotating rod, the connecting protrusion 421 slides within the guide groove 431, driving the slider 41 to move linearly. Preferably, the extension direction of the guide groove 431 is perpendicular to the sliding direction of the slider 41. When the rotating rod rotates, a distance difference is generated between the starting position of the connecting protrusion 421 and the sliding direction of the slider 41. Therefore, when the connecting protrusion 421 slides within the guide groove 431, this distance is converted into forward and backward movement of the slider 41. When the rotating rod swings in different directions, the slider 41 swings forward or backward, respectively.

[0070] like Figures 5 to 12 As shown, in the technical solution of embodiment 1, the driving mechanism 40 also includes a handle 50 provided on the pot cover 20 and a rotating seat 60 provided 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. The rotating seat 60 is connected to the lock cover 22 so that when the handle 50 is rotated, the lock cover 22 can be driven to rotate synchronously. Specifically, the above structure enables that when the user rotates the handle 50, the lock 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 rotated. Figure 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 appliance is in a pressurized cooking state, 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, the rotating rod is Figure 6 The position swings to Figure 10 At this time, the pushing 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 appliance is in a pressure-free cooking state.

[0071] Furthermore, the above structure can also release the pressure in the pot body 10 when the pot lid 20 is unlocked after cooking is completed.

[0072] like Figure 7As shown, in the technical solution of Example 1, the pot lid 20 includes an inner lining 21, a locking cover 22 is disposed 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 interior of the pot body 10. Specifically, the first tube 31 is fixedly mounted on the inner lining 21. A mounting hole is provided in the middle of the locking cover 22 to avoid the first tube 31.

[0073] 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.

[0074] like Figure 13 As shown, the difference between Example 2 and Example 1 of the cooking device of the present application lies in the structure of the guide groove 431. Specifically, the guide groove 431 comprises two groove segments offset perpendicular to the sliding direction of the slider 41. This structure allows the slider 41 to slide further when the connecting protrusion 421 slides within the guide groove 431. This structure makes the cooking device more compact and ensures stable switching between pressure- and non-pressure-cooking modes.

[0075] like Figure 13 As shown, in the technical solution of Example 2, the guide groove 431 includes a first groove section 432, a second groove section 433, and a transition connecting section 434 connecting the first and second groove sections 432 and 433. The first and second groove sections 432 and 433 are staggered. Preferably, the inner wall of the guide groove 431 is arc-shaped to prevent the connecting protrusion 421 from getting stuck during the sliding process.

[0076] like Figure 14 and Figure 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 pressure-free cooking state. 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 until the push-up protrusion 411 is located below the mounting seat 36, the positioning protrusion 71 is embedded in the positioning groove 72, thereby enabling the second tube body 32 to remain in the second exhaust position and preventing the second tube body 32 from being mistakenly reset due to the influence of the elastic member 35.

[0077] 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 provided on the upper surface of the locking cover body 222. Among them, the cover teeth 221 are provided at the lower edge of the side of the locking cover body 222. An arc groove 211 is provided on the inner lining, and the connecting column 223 passes through the arc groove 211 upwards and is directly provided in the guide groove 431. Combined with Figure 19 and Figure 22 As can be seen, when the locking cover 22 rotates, it directly drives the second tube 32 to switch between the first row position and the second exhaust position. Compared to the first embodiment, the fourth embodiment directly drives the sliding member 41 when the locking cover 22 rotates. Due to the fewer intermediate transmission components, the driving accuracy is guaranteed, ensuring that the second tube 32 moves in the predetermined manner, and ensuring the stability of the switch between pressure cooking and non-pressure cooking.

[0078] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​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 drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0079] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0080] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. 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 figures. For example, if the device in the 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.

[0081] 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.

[0082] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A cooking appliance capable of both pressure cooking and non-pressure cooking, characterized in that: include: A pot body (10) is used to hold food to be cooked, the pot body (10) is provided with pot teeth (11), and the pot body is provided with a heating device; A pot cover (20), the pot cover (20) being arranged on the pot body (10), the pot cover (20) comprising a locking cover (22), and the locking cover (22) being provided with a covering tooth (221); 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 exhausting air through the second exhaust port when the switch structure is open to perform pressureless cooking, and the cooking utensil exhausting air through the first exhaust port when the switch structure is closed to perform pressured cooking; a driving mechanism (40), wherein the driving mechanism (40) is connected to the locking cover (22) and the switch structure, and when the driving mechanism (40) drives the locking cover (22) to rotate until the cover teeth (221) and the pot teeth (11) are locked with each other, the switch structure closes the second exhaust port; and when 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, the switch structure opens the second exhaust port; The lower end of the tube body is in communication with the interior 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), the exhaust hole (34) forms the second exhaust port, and the pressure limiting structure is a pressure limiting valve (33) provided at the upper end of the tube body.

2. The cooking appliance according to claim 1, wherein 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 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.

3. The cooking appliance according to claim 2, wherein: The cooking appliance further comprises a transmission mechanism connected to the driving mechanism (40), the transmission mechanism cooperating 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).

4. The cooking appliance according to claim 3, wherein: The exhaust assembly (30) further includes an elastic member (35), wherein the elastic member (35) is arranged between the first tube body (31) and the second tube body (32), and the elastic member (35) applies elastic force to the second tube body (32) to keep 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.

5. The cooking appliance according to claim 4, characterized in that The exhaust assembly (30) further includes a mounting seat (36), wherein a mounting through hole (361) is provided on the mounting seat (36), and the mounting seat (36) is sleeved on the outside of the first tube body (31) through the mounting through hole (361), and the second tube body (32) is sleeved on the outside of 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 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 abutted against the positioning protrusion (311) and the mounting seat (36).

6. The cooking appliance according to claim 5, characterized in that 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 the switch structure. When the second tube body (32) is in the 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).

7. The cooking appliance according to claim 5, wherein: The second tube body (32) comprises a small diameter section (321), a transition section (322) and a large diameter section (323) 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), wherein the exhaust hole (34) is provided on the transition section (322), and the upper end of the side wall of the first tube body (31) forms the switch structure, and 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).

8. The cooking appliance according to claim 7, wherein: 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).

9. The cooking appliance according to claim 7, wherein: 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 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 via a threaded structure.

10. The cooking appliance according to claim 3, wherein The transmission mechanism includes a sliding member (41), the sliding member (41) is movably arranged below the second tube body (32), and 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.

11. The cooking appliance according to claim 10, wherein 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 (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 (32).

12. The cooking appliance according to claim 11, wherein The cooking utensil further comprises a guide post, which is fixedly arranged on the pot cover (20) and passes through the avoidance groove (412); the guide post and the first tube body (31) define the sliding direction of the sliding member (41).

13. The cooking appliance according to claim 10, wherein In the sliding direction of the sliding member (41), a guiding inclined surface (413) is provided at the end of the pushing protrusion (411).

14. The cooking appliance according to claim 10, wherein 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.

15. The cooking appliance according to claim 14, wherein The transmission mechanism further includes an end slot portion (43) connected to the sliding member (41), a guide slot (431) being provided on the slot portion (43), an extension direction of the guide slot (431) and a sliding direction of the sliding member (41) having a preset angle, wherein the driving member (42) includes a rotating rod, an end portion of the rotating rod being provided with a connecting protrusion (421), the connecting protrusion (421) being embedded in the guide slot (431), and the connecting protrusion (421) sliding in the guide slot (431) during the rotation of the rotating rod, thereby driving the sliding member (41) to move in a straight line.

16. The cooking appliance according to claim 15, wherein The driving mechanism (40) further comprises a handle (50) provided on the pot cover (20) and a rotating seat (60) provided in the pot cover (20), wherein 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. The rotating seat (60) is connected to the locking cover (22) so that the locking cover (22) can be driven to rotate synchronously when the handle (50) is rotated.

17. The cooking appliance according to claim 16, wherein 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 communicated with the interior of the pot body (10).

18. The cooking appliance according to claim 1, wherein The cooking utensil is an electric pressure cooker.

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