cooking utensils

Abstract

A cooking appliance comprises: a pot body for holding food to be cooked; a lid mounted on the pot body and provided with an exhaust passage; a pressure-limiting valve disposed in the exhaust passage; a transmission member mounted on the lid; and a drive device mounted on the lid. The drive device is offset from the pressure-limiting valve by a certain distance and is capable of pushing the transmission member, causing the transmission member to horizontally push against the pressure-limiting valve, thereby opening the pressure-limiting valve. The technical solution of the present invention effectively solves the problem of air trapping in conventional electric pressure cookers, which results in the lid opening and closing being difficult.

Description

Technical Field

[0001] The present invention relates to a cooking utensil, and in particular to an improvement of a cover opening structure of the cooking utensil. Background Art

[0002] As living standards improve, electric cooking appliances are becoming increasingly popular. Electric pressure cookers, as an alternative to traditional pressure cookers, are particularly popular and are becoming increasingly popular. Electric pressure cookers consist of a pot and a lid that covers the pot. Current electric pressure cookers often exhibit the following issues: Before heating, if the cold air inside the pot is not promptly exhausted, the lid may close tightly, causing the pot to stick to the pot. Furthermore, as the heated food cools, the air inside the pot expands and contracts, which can also cause the pot to stick to the pot. These issues arise because the air pressure inside the pot decreases as the temperature drops, falling below the pressure outside. This can prevent the lid from opening smoothly upon further use, a phenomenon commonly known as air entrapment. Once this air entrapment occurs, the lid opens and closes awkwardly, making it uncomfortable to use. It's difficult for users to separate the lid from the pot by force, which not only affects the user experience but also increases the risk of injury and reduces safety. Summary of the Invention

[0003] The main purpose of the present invention is to provide a cooking utensil to solve the problem of gas trapping in electric pressure cookers in the prior art, which causes the lid to open and close unsmoothly.

[0004] To achieve the above-mentioned objectives, the present invention provides a cooking utensil, comprising: a pot body for holding food to be cooked; a pot lid, disposed on the pot body and provided with an exhaust passage; a pressure-limiting valve, disposed on the exhaust passage; a transmission member, disposed on the pot lid; and a drive device, disposed on the pot lid, the drive device being offset from the pressure-limiting valve by a certain distance and capable of pushing the transmission member, causing the transmission member to horizontally push the pressure-limiting valve, thereby opening the pressure-limiting valve.

[0005] Using the technical solution of the present invention, a drive device controls the pressure-limiting valve via a transmission member. When opening the lid, the user controls the drive device to raise the pressure-limiting valve. At this point, the exhaust passage opens, allowing air to escape from the pot body or enter the pot body, thereby balancing the pressure difference between the pot body and the outside world. This allows the user to open the pot lid smoothly, avoiding situations where the pot lid bounces off due to the pressure difference caused by the high air pressure inside the pot, causing harm to the user; or where the pot lid becomes attached to the pot body and cannot be opened due to the low air pressure inside the pot, affecting user experience. The drive device is offset from the pressure-limiting valve and controls the pressure-limiting valve via a transmission member, facilitating the arrangement of the various components on the pot lid, fully utilizing the space in the pot lid, and optimizing the pot lid structure.

[0006] Furthermore, the transmission member is a rocker arm pivotally arranged on the pot cover, the first end of the rocker arm is in contact with the pressure limiting valve, and the driving device controls the rocker arm to swing and thus controls the opening of the pressure limiting valve.

[0007] Furthermore, the driving device includes a push rod, and a transmission member is arranged between the pressure-limiting valve and the push rod. The transmission member is controlled by the push rod and thus controls the opening and closing of the pressure-limiting valve.

[0008] Furthermore, the pot lid is provided with a cover body which covers the pressure limiting valve, the cover body is provided with an air outlet connected to the outside, the first end of the rocker arm passes through the side wall of the cover body, and a sealing structure is provided between the rocker arm and the cover body.

[0009] Furthermore, the sealing structure is an elastic sealing structure, and when the rocker arm is not subjected to external force, the elastic sealing structure can reset the rocker arm through elastic force.

[0010] Furthermore, a through hole is provided on the sealing structure, and the first end of the rocker rod is passed through the through hole.

[0011] Furthermore, the driving device also includes a solenoid valve, the movement direction of the valve stem of the solenoid valve is parallel to the push rod, the end of the valve stem cooperates with the rocker arm, and the solenoid valve is controlled by an electrical signal so that the valve stem pushes the rocker arm to swing.

[0012] Furthermore, the push rod is slidably arranged above the solenoid valve.

[0013] Furthermore, the driving device further comprises an accommodating space for accommodating the electromagnetic valve and a push rod base, the push rod base cover is arranged on the accommodating space, and the push rod is slidably arranged in the push rod base.

[0014] Furthermore, a guide column is provided on the push rod base, and a guide hole arranged along the movement direction of the push rod is provided on the push rod, and the guide column is inserted into the guide hole.

[0015] Furthermore, a positioning piece is provided on the guide post to prevent the push rod from detaching from the guide post.

[0016] Furthermore, a spring is provided between the push rod base and the push rod and arranged along the movement direction of the push rod, a first baffle is provided on the push rod and cooperates with the first end of the spring, and a second baffle is provided on the push rod base and cooperates with the second end of the spring.

[0017] Furthermore, a lid-opening piece is provided on the pot lid, and the lid-opening piece rotates so that the pot teeth of the pot body engage with the cover teeth of the pot lid or the pot teeth of the pot body and the cover teeth of the pot lid are misaligned. The lid-opening piece includes an extending arm that controls the driving device. During the process of rotating to open the lid, the extending arm pushes the push rod and then opens the pressure limiting valve, so that the internal pressure of the pot body can be balanced with the outside through the exhaust channel before the pot lid is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 A schematic structural diagram of an embodiment of a pot cover of a cooking utensil according to the present invention is shown;

[0020] Figure 2 Shown Figure 1 Schematic diagram of the exploded structure of the pot lid;

[0021] Figure 3 Shown Figure 2 A schematic top view of the pot lid in the open state;

[0022] Figure 4 Shown Figure 3 AA direction cross-sectional schematic diagram of the pot cover;

[0023] Figure 5 Shown Figure 4 A partial cross-sectional view of the pot cover in the BB direction; and

[0024] Figure 6 Shown Figure 2 A top view of the pot lid in the closed state.

[0025] The above drawings include the following reference numerals:

[0026] 10. Pot lid; 20. Exhaust channel; 30. Lid opening member; 31. Extending arm; 40. Pressure limiting valve; 50. Driving device; 51. Push rod; 53. Solenoid valve; 54. Accommodating space; 55. Push rod base; 56. Guide column; 57. Guide hole; 58. Positioning member; 59. Spring; 60. Cover body; 61. Air outlet; 62. Sealing structure; 70. Rocker arm. DETAILED DESCRIPTION

[0027] 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.

[0028] Figure 1 A schematic structural diagram of an embodiment of a pot cover of a cooking utensil according to the present invention is shown; Figure 2 Shown Figure 1 Schematic diagram of the decomposition structure of the pot lid. Figure 1 and Figure 2As shown, the cooking device of this embodiment includes a pot body, a pot lid 10, a pressure-limiting valve 40, a transmission member, and a drive device 50. The pot body is used to hold food to be cooked. The pot lid 10 is mounted on the pot body and is provided with an exhaust duct 20. The pressure-limiting valve 40 is disposed on the exhaust duct 20, and the transmission member is disposed on the pot lid 10. The drive device 50 is disposed on the pot lid 10. The drive device 50 is offset from the pressure-limiting valve 40 by a certain distance and can push the transmission member, causing the transmission member to horizontally push against the pressure-limiting valve 40, thereby opening the pressure-limiting valve 40.

[0029] Using the technical solution of this embodiment, the drive device 50 controls the pressure-limiting valve 40 via a transmission member. When opening the lid, the user controls the drive device 50 to raise the pressure-limiting valve 40. At this time, the exhaust passage 20 opens, allowing air to escape from the pot body or enter the pot body to balance the pressure difference between the pot body and the outside world. This allows the user to open the pot lid 10 smoothly, avoiding situations where the pot lid 10 bounces off due to the pressure difference when opening the pot due to high air pressure inside the pot, causing harm to the user; or situations where the pot lid 10 is stuck to the pot body and cannot be opened when opening the pot due to low air pressure inside the pot, affecting user use. The drive device 50 is offset from the pressure-limiting valve 40 and controls the pressure-limiting valve 40 via a transmission member, facilitating the arrangement of the various components on the pot lid 10, fully utilizing the space of the pot lid 10, and optimizing the structure of the pot lid 10.

[0030] Specifically, if Figure 1 and Figure 2 As shown, the transmission member of this embodiment is a swing arm 70 pivotally mounted on the pot lid 10. The first end of the swing arm 70 contacts the pressure-limiting valve 40. The driving device 50 controls the swing arm 70 to swing, thereby controlling the opening of the pressure-limiting valve 40. The driving device 50 includes a push rod 51. The transmission member is disposed between the pressure-limiting valve 40 and the push rod 51. The transmission member is controlled by the push rod 51, thereby controlling the opening and closing of the pressure-limiting valve 40. The swing arm 70 controls the pressure-limiting valve 40 by rotating. A small movement of the driving device 50 near the rotation axis of the swing arm 70 can cause the first end of the swing arm 70 to make a large displacement, thereby effectively controlling the pressure-limiting valve 40. The above structure is simple and easy to implement.

[0031] Furthermore, if Figure 1 and Figure 2 As shown, the cooker lid 10 of this embodiment is provided with a cover body 60 that covers the pressure-limiting valve 40. The cover body 60 is provided with an air outlet 61 that communicates with the outside. The first end of a swing rod 70 passes through the side wall of the cover body 60, and a sealing structure 62 is provided between the swing rod 70 and the cover body 60. The cover body 60 can keep the exhaust channel 20 sealed, preventing liquid or food debris from entering the cooker lid 10 with the escaping gas and affecting the normal operation of the push rod 51, the swing rod 70 and other structures.

[0032] Furthermore, the sealing structure 62 of this embodiment is an elastic sealing structure. When the rocker arm 70 is not subjected to external forces, the elastic sealing structure can reset the rocker arm 70 through its elastic force. The elastic sealing structure 62 allows the rocker arm 70 to move away from the pressure-limiting valve 40 when the pot lid 10 is closed and the push rod 51 moves away from the rocker arm 70. Consequently, the pressure-limiting valve 40 can reset under its own weight, closing the exhaust passage 20. This structure eliminates the need for a separate reset mechanism in the pot lid 10, saving space within the pot lid 10 and reducing production costs.

[0033] Specifically, if Figure 2 As shown, the sealing structure 62 of this embodiment is provided with a through hole, through which the first end of the rocker arm 70 is inserted. This structure enhances the sealing effect and maximizes the fit between the rocker arm 70 and the pressure-limiting valve 40. This prevents liquid or food debris from entering the pot lid 10 through the gap between the rocker arm 70 and the cover 60, and also prevents the rocker arm 70 from being unable to fully lift the pressure-limiting valve 40 when controlling the pressure-limiting valve 40 through the sealing structure 62, resulting in ineffective operation.

[0034] Furthermore, if Figure 1 and Figure 2 As shown, the drive device 50 of this embodiment also includes a solenoid valve 53. The valve stem of the solenoid valve 53 moves parallel to the push rod 51. The end of the valve stem engages with the rocker 70. The solenoid valve 53 is controlled by an electrical signal, causing the valve stem to push the rocker 70 to swing. The push rod 51 and the solenoid valve 53 together control the pressure-limiting valve 40, providing a double safety. The solenoid valve 53 controls the pressure-limiting valve 40 as needed through an electrical signal, thereby controlling the gas pressure within the pot and enhancing the flexibility of the cooking appliance.

[0035] Further, Figure 3 Shown Figure 2 A schematic top view of the pot lid in the open state; Figure 4 Shown Figure 3 AA direction cross-sectional view of the pot cover. Figures 2 to 4 As shown, the push rod 51 of this embodiment is slidably arranged above the electromagnetic valve 53. The push rod 51 and the electromagnetic valve 53 have similar functions and the same movement direction. They are stacked on each other to save space and facilitate the spatial structure arrangement of the pot cover 10.

[0036] In order to further save space and make the structure compact, Figures 1 to 4 As shown, in this embodiment, the driving device 50 further includes a receiving space 54 for receiving the solenoid valve 53 and a push rod base 55. The push rod base 55 is covered on the receiving space 54, and the push rod 51 is slidably disposed in the push rod base 55. The push rod base 55 serves as a base for the push rod 51 to limit the movement direction of the push rod 51, and also serves as a cover for the receiving space 54 to protect the safety of electrical components such as the solenoid valve 53.

[0037] In addition, if Figures 2 to 4 As shown, a guide post 56 is provided on the push rod base 55, and a guide hole 57 is provided on the push rod 51 along the movement direction of the push rod 51. The guide post 56 is inserted into the guide hole 57. In the above structure, the guide post 56 slides in the guide hole 57 to control the movement direction of the push rod 51. The structure is simple and the effect is obvious.

[0038] Specifically, if Figures 2 to 4 As shown, in this embodiment, a positioning member 58 is provided on the guide post 56. The positioning member 58 abuts against the upper surface of the push rod 51 to prevent the push rod 51 from disengaging from the push rod base 55 during movement. A spring 59 is disposed between the push rod base 55 and the push rod 51, arranged along the direction of movement of the push rod 51. The push rod 51 is provided with a first stopper that engages with the first end of the spring 59, and the push rod base 55 is provided with a second stopper that engages with the second end of the spring 59. The spring 59 resets the push rod 51, resulting in a simple structure.

[0039] In addition, if Figure 1 and Figure 2 As shown, the pot lid 10 of this embodiment is further provided with a lid opening member 30. The lid opening member 30 rotates so that the pot teeth of the pot body engage with the cover teeth of the pot lid 10 or the pot teeth of the pot body and the cover teeth of the pot lid 10 are misaligned. The lid opening member 30 includes an extending arm 31 that controls the driving device 50. During the process of rotating to open the lid, the extending arm 31 pushes the push rod 51 and then opens the pressure limiting valve 40, so that the internal pressure of the pot body can be balanced with the outside through the exhaust channel 20 before the pot lid 10 is opened.

[0040] Specifically, such as Figure 3 and Figure 4 As shown, at this time, the pot cover 10 is in the open state, the extended arm 31 pushes the push rod 51 and then the swing rod 70 swings, and the pressure limiting valve 40 is lifted, and the exhaust channel 20 is opened to balance the air pressure inside and outside the pot. To achieve the above functions, Figure 5 Shown Figure 4 BB direction partial cross-sectional view of the pot cover. Figure 5 As shown, the pot lid 10 can be provided with an inclined surface that cooperates with the pressure-limiting valve 40, so that the pressure-limiting valve 40 rises along the inclined surface during rotation, lifting the pressure-limiting valve 40 and opening the exhaust passage 20. This prevents the pot lid from popping open or sucking the pot due to the pressure difference between the inside and outside. When the rocker 70 returns to its original position, the pressure-limiting valve 40 slides down the inclined surface under its own weight and returns to its original position, closing the exhaust passage 20.

[0041] Figure 6 Shown Figure 2 A top view of the pot lid in the closed state. Figure 6As shown, when the lid is closed for cooking, the lid opening member 30 is in the locked position, the extending arm 31 is away from the push rod 51, and the push rod 51 returns to its initial position under the action of the spring 59. The rocker arm 70 also returns to its initial position under the elastic action of the sealing structure 62, thereby allowing the pressure limiting valve 40 to reset and close the exhaust passage 20.

[0042] When forming the pot lid of the actual product, the lid opening part may not be in direct contact with the solenoid valve due to the limitation of the spatial structure. For the pot lid in the above situation, setting a push rod above the solenoid valve can also make up for the height difference between the lid opening part and the solenoid valve, so as to achieve the purpose of balancing the air pressure inside and outside the pot body before the pot lid is opened.

[0043] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0044] The drive mechanism controls the pressure-limiting valve via a transmission component. When opening the lid, the user controls the drive mechanism to raise the pressure-limiting valve, opening the exhaust duct and allowing air to escape from the pot body or enter the pot body, thereby balancing the pressure differential between the pot body and the outside world. This allows the user to open the pot lid smoothly, preventing the pot lid from bouncing open due to the pressure differential caused by high pressure inside the pot, potentially causing injury, or from becoming stuck to the pot body due to low pressure inside the pot, potentially preventing user access. The drive mechanism is offset from the pressure-limiting valve and controls it via a transmission component, facilitating the layout of the pot lid components, fully utilizing the pot lid's space, and optimizing its structure.

[0045] 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 utensil, characterized in that: include: The pot body is used to hold the food to be cooked; A pot cover (10) is provided on the pot body, and an exhaust passage (20) is provided on the pot cover (10); a pressure limiting valve (40), arranged on the exhaust passage (20); A transmission member, arranged on the pot cover (10); a driving device (50) disposed on the pot cover (10), the driving device (50) being spaced a certain distance away from the pressure-limiting valve (40) and capable of pushing the transmission member, causing the transmission member to horizontally push the pressure-limiting valve (40), thereby opening the pressure-limiting valve (40); The transmission member is a swing rod (70) pivotally arranged on the pot cover (10), a first end of the swing rod (70) contacts the pressure-limiting valve (40), and a second end of the swing rod (70) is pivotally connected to the pot cover (10), and the driving device (50) is located between the first end and the second end of the swing rod (70), and the driving device (50) controls the swing of the swing rod (70) and thereby controls the opening of the pressure-limiting valve (40); The driving device (50) includes a push rod (51), the transmission member is arranged between the pressure-limiting valve (40) and the push rod (51), and the transmission member is controlled by the push rod (51) to control the opening and closing of the pressure-limiting valve (40); The driving device (50) further comprises a solenoid valve (53), the movement direction of the valve stem of the solenoid valve (53) is parallel to the push rod (51), the end of the valve stem cooperates with the rocker (70), and the solenoid valve (53) is controlled by an electrical signal so that the valve stem pushes the rocker (70) to swing.

2. The cooking appliance according to claim 1, wherein The pot cover (10) is provided with a cover body (60) covering the pressure-limiting valve (40); the cover body (60) is provided with an air outlet (61) communicating with the outside; the first end of the swing rod (70) passes through the side wall of the cover body (60); and a sealing structure (62) is provided between the swing rod (70) and the cover body (60).

3. The cooking appliance according to claim 2, wherein: The sealing structure (62) is an elastic sealing structure, and when the rocker arm (70) is not subjected to external force, the elastic sealing structure can reset the rocker arm (70) through elastic force.

4. The cooking appliance according to claim 2, wherein: The sealing structure (62) is provided with a through hole, and the first end of the rocker rod (70) is passed through the through hole.

5. The cooking appliance according to claim 1, wherein The push rod (51) is slidably arranged above the solenoid valve (53).

6. The cooking appliance according to claim 5, wherein: The driving device (50) further comprises a receiving space (54) for receiving the solenoid valve (53) and a push rod base (55), wherein the push rod base (55) is covered on the receiving space (54), and the push rod (51) is slidably disposed in the push rod base (55).

7. The cooking appliance according to claim 6, characterized in that A guide column (56) is provided on the push rod base (55), a guide hole (57) arranged along the movement direction of the push rod (51) is provided on the push rod (51), and the guide column (56) is inserted into the guide hole (57).

8. The cooking appliance according to claim 7, wherein: A positioning piece (58) is provided on the guide post (56) to prevent the push rod (51) from detaching from the guide post.

9. The cooking appliance according to claim 6, wherein A spring (59) is provided between the push rod base (55) and the push rod (51) and is arranged along the movement direction of the push rod (51). A first baffle is provided on the push rod (51) and is matched with the first end of the spring (59). A second baffle is provided on the push rod base (55) and is matched with the second end of the spring (59).

10. The cooking appliance according to claim 1, wherein The pot lid (10) is provided with a lid opening member (30), and the lid opening member (30) rotates so that the pot teeth of the pot body engage with the cover teeth of the pot lid (10) or the pot teeth of the pot body and the cover teeth of the pot lid (10) are misaligned. The lid opening member (30) includes an extending arm (31) for controlling the driving device (50). During the process of rotating the lid, the extending arm (31) pushes the push rod (51) to open the pressure limiting valve (40), so that the internal pressure of the pot body can be balanced with the outside through the exhaust channel (20) before the pot lid (10) is opened.

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