Pressure cooker cover and pressure cooker

Abstract

The utility model discloses a pressure cooker cover and a pressure cooker, and relates to the field of pressure cookers, a body is provided with a spring bolt assembly, an exhaust valve and an opening and closing mechanism linked with the spring bolt assembly, and the spring bolt assembly comprises at least two spring bolts; the opening and closing mechanism comprises a first driving part used for opening the exhaust valve and a second driving part used for driving the spring bolt assembly to be opened and closed in the radial direction of the body, the first driving part is connected with and drives the second driving part, and the second driving part is fixedly connected with the spring bolt assembly; an opening stopping rod is arranged on the body and moves between a first position for limiting the movement of the second driving piece and a second position for allowing the movement of the second driving piece along with the change of pressure; under the condition that the first driving piece opens the exhaust valve, the opening stopping rod moves from the first position to the second position so that the first driving piece can drive the second driving piece to move, and the second driving piece drives the spring bolt assembly to be opened and closed in the radial direction of the body. The exhaust valve has the advantages of convenience in exhaust and high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, in particular to a pressure cooker cover and a pressure cooker. Background Art

[0002] A pressure cooker is a kitchen appliance that uses high-pressure steam to speed up the cooking process. The pot body and the lid are combined to form a sealed space. Its characteristic is that it increases the boiling point of water by increasing the pressure in the pot, thereby achieving high-temperature cooking and greatly improving cooking efficiency.

[0003] The pressure cooker in the related art has poor reliability because the pressure inside the cooker is high during cooking, and opening the cover after cooking is easy to cause a cover-opening accident. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a pressure cooker cover and a pressure cooker, which have the advantages of convenient exhaust and high safety.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pressure cooker lid comprises a body, wherein a locking tongue assembly, an exhaust valve, and an opening and closing mechanism linked with the locking tongue assembly are arranged on the body, wherein the locking tongue assembly comprises at least two locking tongues; the opening and closing mechanism comprises a first driving member for opening the exhaust valve and a second driving member for driving the locking tongue assembly to open and close radially along the body, wherein the first driving member is connected to and drives the second driving member, and the second driving member is fixedly connected to the locking tongue assembly; a stopper rod is arranged on the body, wherein the stopper rod moves between a first position restricting the movement of the second driving member and a second position allowing the movement of the second driving member as pressure changes; when the first driving member opens the exhaust valve, the stopper rod moves from the first position to the second position so that the first driving member drives the second driving member to move, and the second driving member drives the locking tongue assembly to open and close radially along the body.

[0007] Optionally, the main body is provided with an actuator cooperating with the opening and closing mechanism, the actuator is constructed as a button, and the actuator is provided with a first bevel tooth having a first inclined surface and a second bevel tooth having a second inclined surface; the first driving member is provided with a third bevel tooth having a third inclined surface, and the second driving member is provided with a fourth bevel tooth having a fourth inclined surface; when the actuator moves toward the first driving member and the second driving member, the first inclined surface abuts and cooperates with the third inclined surface so that the actuator can drive the first driving member, and the second inclined surface abuts and cooperates with the fourth inclined surface so that the actuator can drive the second driving member; the distance between the first inclined surface and the third inclined surface is smaller than the distance between the second inclined surface and the fourth inclined surface so that the actuator drives the first driving member first and then drives the second driving member.

[0008] Optionally, a guide groove is provided on the first driving member, and the second driving member includes a first driving plate and a second driving plate arranged opposite to each other, the first driving plate and the second driving plate are both connected to the locking tongue, a guide column extending into the guide groove is formed on the first driving plate, and the fourth bevel tooth is provided on the second driving plate, and the guide column moves in the guide groove to open the exhaust valve.

[0009] Optionally, a return spring is provided between the first drive plate and the second drive plate, and between the second drive plate and the first drive member.

[0010] Optionally, the first driving member is constructed as a turntable, and the second driving member includes a first driving plate and a second driving plate arranged opposite to each other, the first driving plate and the second driving plate are both connected to the locking tongue, a guide column is arranged on the first driving plate, and an arc-shaped guide groove corresponding to the guide column one by one is opened on the first driving member, and when the first driving member rotates, the guide groove drives the guide column to move in the guide groove to open and close the locking tongue assembly.

[0011] Optionally, the main body is provided with an actuating member cooperating with the opening and closing mechanism, the actuating members are configured in two and both are connected to the first driving member, and the two actuating members move closer to or farther away from each other to rotate the first driving member.

[0012] Optionally, a return spring is arranged between the two actuating members.

[0013] Optionally, the main body is provided with an actuator that cooperates with the first driving member, and the actuator is constructed as a knob; the first driving member has claws distributed along its circumference, and the actuator has square holes distributed along its circumference that cooperate with the claws, and the square holes correspond one-to-one with the claws. When the actuator rotates, it can drive the first driving member to rotate.

[0014] Optionally, the main body is provided with an actuating member cooperating with the first driving member, the actuating member includes a handle and a push plate rotatably connected to the handle, and the handle drives the push plate to translate by rotation to drive the first driving member to rotate.

[0015] Optionally, the main body is provided with an actuator that cooperates with the opening and closing mechanism, the actuator includes a handle with a cavity and a push rod passing through the cavity, the handle is provided with a give-way groove, one end of the push rod is connected to the first driving member, and the other end of the push rod passes through the give-way groove; the first driving member is formed with a protrusion on the side facing the exhaust valve, the exhaust valve includes a valve core that moves between an open position and a closed position, the protrusion is located on a side of the valve core close to the handle, when the handle moves in a direction away from the first driving member, the give-way groove drives the push rod to rotate, and the first driving member moves the valve core from the closed position to the open position under the drive of the push rod.

[0016] Optionally, the second driving member includes a connecting plate and a first driving plate and a second driving plate rotatably arranged at both ends of the connecting plate, the second driving plate is connected to the first driving member to drive the connecting plate to rotate under the action of the first driving member, and the first driving plate approaches or moves away from the second driving plate as the connecting plate rotates to realize the opening and closing of the locking tongue assembly.

[0017] Optionally, a return spring is disposed between the first driving plate and the body, and between the first driving member and the body.

[0018] Optionally, the main body is provided with an actuator cooperating with the opening and closing mechanism, and the actuator is constructed to rotate a push rod provided on the first driving member; a protrusion is formed on the side of the first driving member facing the exhaust valve, and the exhaust valve includes a valve core moving between an open position and a closed position, and the protrusion is located on the side of the valve core away from the push rod, and when the push rod rotates toward the valve core, the protrusion causes the valve core to move from the closed position to the open position under the action of the push rod.

[0019] Optionally, the second driving member includes a connecting plate and a first driving plate and a second driving plate rotatably arranged at both ends of the connecting plate, the second driving plate is connected to the first driving member to drive the connecting plate to rotate under the action of the first driving member, and the first driving plate approaches or moves away from the second driving plate as the connecting plate rotates to realize the opening and closing of the locking tongue assembly; a return spring is arranged between the first driving plate and the main body and between the first driving member and the main body.

[0020] Optionally, the first driving member is provided with an arc-shaped guide groove which is radially symmetrically arranged along the main body, and the second driving member includes a first driving plate and a second driving plate which are relatively arranged, the first driving plate and the second driving plate are both connected to the locking tongue, and the first driving plate and the second driving plate are both provided with guide columns; the main body is provided with an actuator fixed to the first driving member, and the actuator opens the exhaust valve by translation and drives the guide column to move along the guide groove to open and close the locking tongue assembly.

[0021] In addition, the utility model also provides a pressure cooker, comprising a pot body and a pot cover, wherein the pot cover comprises any one of the pressure cooker covers described above. The reasoning process of the beneficial effects of the pressure cooker provided by the utility model and the pressure cooker cover described above is similar, and will not be repeated here.

[0022] The present application greatly enhances the sealing effect of the pressure cooker and improves the safety factor of the pressure cooker by setting a locking tongue assembly interlocked with the pot body on the pot cover. At the same time, an exhaust valve that is synchronously controlled with the locking tongue assembly is set on the pot cover. The user first lifts the exhaust valve to release pressure before opening the locking tongue assembly through the opening and closing mechanism, thereby reducing the pressure in the pot to the greatest extent, achieving exhaust and opening and closing of the locking tongue assembly in one step, improving the safety performance of the pressure cooker, and meeting the humanized needs and safety assurance concepts of contemporary household appliances.

[0023] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully presented in conjunction with the drawings, but it is not a limitation of the technical solution of the utility model. In addition, these features, elements and components appearing in each of the following texts and drawings are multiple, and are marked with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is a schematic structural diagram of a pressure cooker according to Embodiment 1 of the present utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the pot cover in Example 1;

[0027] Figure 3 for Figure 2 A schematic diagram of the structure from another angle;

[0028] Figure 4 is a cross-sectional view of the pot cover in Example 1;

[0029] Figure 5 It is a schematic structural diagram of the pressure cooker of Example 2;

[0030] Figure 6 It is a partial structural schematic diagram of the pot cover in Example 2;

[0031] Figure 7 is a cross-sectional view of the pot cover in Example 2;

[0032] Figure 8 A cross-sectional view of another structure of a pot cover in Example 2;

[0033] Fig. 9 A schematic diagram of a portion of a pot cover having another structure in Embodiment 2

[0034] Fig.10 is a schematic structural diagram of the pressure cooker in Example 3;

[0035] Fig.11 This is a partial structural schematic diagram of a pot cover in Example 3;

[0036] Fig.12 This is a partial structural schematic diagram of a pot cover in Example 3;

[0037] Fig.13 It is a partial structural schematic diagram of the pot cover in Example 4;

[0038] Fig.14 This is a partial structural schematic diagram of the pot cover in Example 5.

[0039] Among them, 1. pot cover; 11. locking tongue; 12. exhaust valve; 121. valve core; 13. opening and closing mechanism; 131. first driving member; 1311. protrusion; 1312. third oblique tooth; 1313. guide groove; 132. second driving member; 1321. first driving plate; 1321a. guide column; 1322. second driving plate; 1322a. fourth oblique tooth; 1323. connecting plate; 133. reset spring; 14. stop rod; 15. actuator; 151. first oblique tooth; 152. second oblique tooth; 153. handle; 154. handle; 155. push plate; 1531. make way groove; 156. push rod; 2. pot body. DETAILED DESCRIPTION

[0040] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0041] References in this specification to "one embodiment" or "an example" or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment of the present patent disclosure. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0042] Embodiment 1:

[0043] like Figures 1 to 4 As shown, this embodiment provides a pressure cooker cover, including a body, on which a locking tongue assembly, an exhaust valve 12, and an opening and closing mechanism 13 linked with the locking tongue assembly are arranged, the locking tongue assembly includes at least two locking tongues 11; the opening and closing mechanism 13 includes a first driving member 131 for opening the exhaust valve 12 and a second driving member 132 for driving the locking tongue assembly to open and close radially along the body, the first driving member 131 is connected to and drives the second driving member 132, and the second driving member 132 is fixedly connected to the locking tongue assembly; a stop rod 14 is arranged on the body, and the stop rod 14 moves between a first position that limits the movement of the second driving member 132 and a second position that allows the second driving member 132 to move as the pressure changes; when the first driving member 131 opens the exhaust valve 12, the stop rod 14 moves from the first position to the second position so that the first driving member 131 drives the second driving member 132 to move, and the second driving member 132 drives the locking tongue assembly to open and close radially along the body.

[0044] In this embodiment, the main body is provided with an exhaust valve 12 for exhausting the inside of the pot body 2, a locking tongue assembly for clamping the edge of the pot body 2, and an opening and closing mechanism 13 that is linked with the locking tongue assembly and drives the locking tongue assembly to open and close. When the pot cover 1 needs to be closed, the locking tongue assembly will tightly clamp the edge of the pot body 2 to prevent steam and heat from leaking from the gap, thereby maintaining the pressure and temperature in the pot, so that the food can be cooked faster and more evenly. When the pot cover 1 needs to be opened, the locking tongue assembly will open outward to release the clamping of the pot body 2, so that the pot cover 1 can be opened smoothly. Specifically, the opening and closing mechanism 13 includes a first driving member 131 for opening the exhaust valve 12 and a second driving member 132 connected to the locking tongue assembly and used to drive the locking tongue assembly to open and close along the radial direction of the main body, and the second driving member 132 can also be driven by the first driving member 131 to achieve one-key exhaust and opening and closing, simplifying the operating steps of the pressure cooker. In addition, for safety reasons, the main body is also provided with a stopper rod 14, which moves up and down between a first position and a second position as the pressure in the pot body 2 changes, that is, when the pressure in the pot is high, the stopper rod 14 is in the first position and is located on the moving path of the second driving member 132 to limit the movement of the second driving member 132 and prevent the pot cover 1 from being opened. When the exhaust valve 12 is opened and the pressure in the pot gradually decreases to a safe level, the stopper rod 14 will move to the second position and no longer hinder the movement of the second driving member 132. At this time, the second driving member 132 can drive the locking tongue assembly to open the pot cover 1. Before the pressure in the pot is fully released, the stopper rod 14 can prevent the pot cover 1 from opening suddenly due to misoperation by the user to avoid causing danger.

[0045] In this embodiment, the sealing effect of the pressure cooker is greatly enhanced and the safety factor of the pressure cooker is improved by arranging a locking tongue assembly interlocked with the pot body 2 on the pot cover 1. At the same time, an exhaust valve 12 which is linked and synchronously controlled with the locking tongue assembly is arranged on the pot cover 1. Before the user controls the locking tongue assembly to open through the opening and closing mechanism 13, the exhaust valve 12 is lifted to release the pressure, thereby reducing the pressure in the pot to the greatest extent, and the exhaust and opening and closing of the locking tongue assembly are realized in one step, thereby improving the safety performance of the pressure cooker and meeting the humanized needs and safety guarantee concepts of contemporary household appliances.

[0046] The lock tongue assembly includes at least two lock tongues 11 that move away from or approach each other radially along the body, and the lock tongues 11 correspond one-to-one to the second driving member 132; the body is provided with an actuating member 15 that cooperates with the opening and closing mechanism 13, and the actuating member 15 drives the opening and closing mechanism 13 to drive the lock tongues 11 to move away from or approach each other.

[0047] In this embodiment, the locking tongue assembly includes at least two locking tongues 11 that are radially away from or close to each other along the body. The number of locking tongues 11 corresponds to the number of second driving members 132. Each second driving member 132 is fixedly connected to a locking tongue 11, thereby achieving precise clamping and releasing actions.

[0048] The exhaust valve 12 includes a valve core 121 that moves between an open position and a closed position. A protrusion 1311 for moving the valve core 121 from the closed position to the open position is formed on a side of the first driving member 131 that faces the exhaust valve 12 .

[0049] In this embodiment, when the pressure in the pot body 2 needs to be released, the first driving member 131 is driven to move toward one side of the exhaust valve 12 by operating the actuator 15. During this movement, the protrusion 1311 formed on the first driving member 131 will contact the valve core 121 of the exhaust valve 12, and the protrusion 1311 pushes the valve core 121 from the closed position to the open position. After the valve core 121 is opened, the steam in the pot body 2 can be released through the exhaust valve 12, thereby reducing the pressure in the pot body 2.

[0050] The main body is provided with an actuator 15 that cooperates with the opening and closing mechanism 13. The actuator 15 is constructed as a button. The actuator 15 is provided with a first oblique tooth 151 having a first inclined surface and a second oblique tooth 152 having a second inclined surface; the first driving member 131 is provided with a third oblique tooth 1312 having a third inclined surface, and the second driving member 132 is provided with a fourth oblique tooth 1322a having a fourth inclined surface; when the actuator 15 moves toward the first driving member 131 and the second driving member 132, the first inclined surface abuts and cooperates with the third inclined surface so that the actuator 15 can drive the first driving member 131, and the second inclined surface abuts and cooperates with the fourth inclined surface so that the actuator 15 can drive the second driving member 132; the distance between the first inclined surface and the third inclined surface is smaller than the distance between the second inclined surface and the fourth inclined surface so that the actuator 15 first drives the first driving member 131 and then drives the second driving member 132.

[0051] In this embodiment, when the pot cover 1 needs to be opened, the user can operate the actuator 15 that cooperates with the opening and closing mechanism 13. The actuator 15 can be a button, a handle or other forms of operating devices to drive the opening and closing mechanism 13 to work. The first driving member 131 in the opening and closing mechanism 13 is responsible for opening the exhaust valve 12, and the second driving member 132 drives the lock tongue 11 to move away from each other along the radial direction of the body according to the action of the first driving member 131 through its fixed relationship with the lock tongue 11, so that the lock tongue 11 is released from the edge of the pot body 2, and the pot cover 1 is allowed to be opened. When the actuator 15 is pressed, the actuator 15 will move toward the first driving member 131 and the second driving member 132. In this process, the first inclined surface will abut and cooperate with the third inclined surface so that the actuator 15 can drive the first driving member 131 to move, and when the first driving member 131 moves to the valve core 121, the valve core 121 will be lifted to exhaust the exhaust valve 12. At the same time, the second inclined surface will also abut against the fourth inclined surface, so that the actuator 15 can drive the second driving member 132 to drive the locking tongue assembly to open. In addition, the distance between the first inclined surface and the third inclined surface is smaller than the distance between the second inclined surface and the fourth inclined surface, which ensures that the actuator 15 will first contact and drive the first driving member 131 when moving, and then contact and drive the second driving member 132. This sequence ensures that the exhaust valve 12 (controlled by the first driving member 131) will be opened first and begin to release the pressure in the pot body 2, and then the locking tongue assembly (controlled by the second driving member 132) will be driven to open and close, ensuring the safety of the pressure cooker. The cooperation of the actuator 15 and the opening and closing mechanism 13 ensures that the pressure in the pot body 2 has been fully released before opening the pot cover 1, thereby avoiding the danger caused by excessive pressure. At the same time, the cooperation of the bevel teeth and the inclined surface also provides a stable and reliable power transmission, ensuring that each component can work in a coordinated and efficient manner.

[0052] A guide groove 1313 is formed on the first driving member 131, and the second driving member 132 includes a first driving plate 1321 and a second driving plate 1322 arranged opposite to each other. The first driving plate 1321 and the second driving plate 1322 are both connected to the locking tongue 11. A guide column 1321a extending into the guide groove 1313 is formed on the first driving plate 1321, and a fourth oblique tooth 1322a is provided on the second driving plate 1322. The guide column 1321a moves in the guide groove 1313 to open the exhaust valve 12.

[0053] In this embodiment, the guide column 1321a formed on the first driving plate 1321 extends into the guide groove 1313, so that when the first driving member 131 moves, the guide column 1321a will move in the guide groove 1313, and the first driving member 131 does not drive the first driving plate 1321 to move, but only pushes the exhaust valve 12 to exhaust. When the pressure in the pot is reduced to a certain extent, the stop rod 14 falls and no longer interferes with the movement of the first driving plate 1321. At this time, the guide column 1321a also moves to the end of the guide groove 1313, and the end of the guide groove 1313 pushes the first driving plate 1321 to start moving toward the center of the body, and the first driving plate 1321 drives the locking tongue 11 to leave the pot body 2. It should be noted that the fourth inclined surface is in the opposite direction to the third inclined surface, that is, the actuator 15 drives the first driving member 131 and the second driving plate 1322 to move in opposite directions. Since the second drive plate 1322 is provided with a fourth oblique tooth 1322a, when the actuator 15 abuts and cooperates with the fourth oblique tooth 1322a through its second inclined surface, the actuator 15 drives the second drive plate 1322 to move toward the center of the body, and the second drive plate 1322 drives the locking tongue 11 to leave the pot body 2, thereby opening the pot cover 1.

[0054] A return spring 133 is disposed between the first driving plate 1321 and the second driving plate 1322 , and between the second driving plate 1322 and the first driving member 131 .

[0055] When the first drive plate 1321 is displaced, the return spring 133 provides a reverse force to restore the first drive plate 1321 to its initial position. Similarly, when the second drive plate 1322 is displaced, the return spring 133 also helps the first drive plate 1321 return to its original position, so that the entire system has better dynamic response and recovery capabilities.

[0056] This embodiment further provides a pressure cooker, comprising a cooker body 2 and a cooker cover 1, wherein the cooker cover 1 comprises the aforementioned pressure cooker cover 1.

[0057] Embodiment 2:

[0058] like Figures 5 to 7 As shown, in this embodiment, a pressure cooker cover 1 is provided, which differs from Embodiment 1 in the following aspects.

[0059] The main body is provided with an actuator 15 that cooperates with the opening and closing mechanism 13, the first driving member 131 is constructed as a turntable, the second driving member 132 includes a first driving plate 1321 and a second driving plate 1322 that are arranged opposite to each other, the first driving plate 1321 and the second driving plate 1322 are both connected with the lock tongue 11, the first driving plate 1321 is provided with a guide column 1321a, and the first driving member 131 is provided with an arc-shaped guide groove 1313 that corresponds to the guide column 1321a one by one. When the first driving member 131 rotates, the guide groove 1313 drives the guide column 1321a to move in the guide groove 1313 to open and close the lock tongue assembly.

[0060] In this embodiment, when the first driving member 131 (turntable) rotates, the guide slot 1313 drives the guide column 1321a to move in the guide slot 1313 along its arc path. Since the guide column 1321a is connected to the first driving plate 1321, the movement of the guide column 1321a drives the first driving plate 1321 and the second driving plate 1322 to move together. Since the first driving plate 1321 and the second driving plate 1322 are both connected to the lock tongue 11, the movement of the first driving plate 1321 and the second driving plate 1322 further drives the lock tongue assembly to open and close. By rotating the first driving member 131 (turntable), the user can easily control the opening and closing degree of the lock tongue assembly, thereby realizing the opening and closing of the pot cover 1. At the same time, the cooperation of the guide column 1321a and the arc guide slot 1313 ensures the stability and reliability of the lock tongue assembly during the opening and closing process.

[0061] There are two actuating members 15 and both are connected to the first driving member 131 . The two actuating members 15 move closer to or farther from each other to rotate the first driving member 131 .

[0062] In this embodiment, when the user squeezes the two actuators 15 toward the middle, the two actuators 15 will apply a rotational torque to the first driving member 131, causing the first driving member 131 to rotate counterclockwise or clockwise. This rotational action will drive other components connected to the first driving member 131 (such as the guide column 1321a and the lock tongue assembly) to move accordingly, thereby realizing the opening or closing of the lock tongue assembly.

[0063] A return spring 133 is arranged between the two actuating members 15 .

[0064] In this embodiment, when the user operates the actuator 15 to drive the first driving member 131 to rotate, the return spring 133 will be compressed or stretched. Once the user releases the actuator 15, the return spring 133 will quickly return to its original shape, thereby driving the actuator 15 back to the initial position.

[0065] In this embodiment, the actuating member 15 also has other modes and structures for driving the first driving member 131 to rotate, two of which are exemplified below.

[0066] like Figure 8 As shown, the main body is provided with an actuator 15 that cooperates with the first driving member 131, and the actuator 15 is constructed as a knob; the first driving member 131 has claws distributed along its circumference, and the actuator 15 has square holes that cooperate with the claws distributed along its circumference, and the square holes correspond to the claws one by one. When the actuator 15 rotates, it can drive the first driving member 131 to rotate.

[0067] The first driving member 131 has claws distributed along its circumference. These claws are used to cooperate with the actuator 15 to transmit the rotational force. The actuator 15 is configured as a knob, and the user can control the opening and closing of the bolt assembly by rotating the actuator 15. The actuator 15 has square holes distributed along its circumference, and the square holes correspond to the claws on the first driving member 131 one by one.

[0068] Or, if Fig. 9 As shown, the body is provided with an actuating member 15 cooperating with the first driving member 131 , and the actuating member 15 includes a handle 154 and a push plate 155 rotatably connected to the handle 154 , and the handle 154 drives the push plate 155 to translate by rotation to drive the first driving member 131 to rotate.

[0069] The body is provided with an actuating member 15 that cooperates with the first driving member 131. The actuating member 15 includes a handle 154 and a push plate 155 that is rotatably connected to the handle. The user drives the push plate 155 to translate by operating the handle 154, thereby driving the first driving member 131 to rotate, so as to realize the opening and closing of the bolt assembly.

[0070] The remaining components of this embodiment are basically the same as those of Embodiment 1 and will not be described in detail here.

[0071] Embodiment 3:

[0072] like Figures 10 to 12 As shown, this embodiment provides a pressure cooker cover 1, which differs from Embodiment 1 as follows.

[0073] The main body is provided with an actuator 15 that cooperates with the opening and closing mechanism 13. The actuator 15 includes a handle 153 with a cavity and a push rod 156 passing through the cavity. The handle 153 is provided with a clearance groove 1531. One end of the push rod 156 is connected to the first driving member 131, and the other end of the push rod 156 passes through the clearance groove 1531; the first driving member 131 is formed with a protrusion 1311 on the side facing the exhaust valve 12, and the exhaust valve 12 includes a valve core 121 that moves between an open position and a closed position. The protrusion 1311 is located on a side of the valve core 121 close to the handle 153. When the handle 153 moves in a direction away from the first driving member 131, the clearance groove 1531 drives the push rod 156 to rotate, and the first driving member 131 moves the valve core 121 from the closed position to the open position under the drive of the push rod 156.

[0074] In this embodiment, when the user wants to open the valve core 121 to release pressure, the handle 153 is moved in a direction away from the first drive member 131. As the handle 153 moves, the clearance groove 1531 drives the push rod 156 to rotate. Since the other end of the push rod 156 is connected to the first drive member 131 and cannot move freely, a rotation torque is generated. When the push rod 156 rotates, it drives the first drive member 131 to rotate or move. The protrusion 1311 on the first drive member 131 interacts with the valve core 121, so that the valve core 121 moves from the closed position to the open position.

[0075] The second driving member 132 includes a connecting plate 1323 and a first driving plate 1321 and a second driving plate 1322 rotatably arranged at both ends of the connecting plate 1323. The second driving plate 1322 is connected to the first driving member 131 to drive the connecting plate 1323 to rotate under the action of the first driving member 131. The first driving plate 1321 approaches or moves away from the second driving plate 1322 as the connecting plate 1323 rotates to realize the opening and closing of the lock tongue assembly.

[0076] In this embodiment, when the first driving member 131 moves, it interacts with the second driving plate 1322. The second driving plate 1322 moves under the action of the first driving member 131, and this movement is transmitted to the first driving plate 1321 through the second driving plate 1322 via the connecting plate 1323. Since the two ends of the connecting plate 1323 are respectively connected to the first driving plate 1321 and the second driving plate 1322, the first driving plate 1321 will approach the second driving plate 1322 as the connecting plate 1323 rotates. The first driving plate 1321 is connected to the locking tongue assembly, so when the first driving plate 1321 approaches the second driving plate 1322, the two locking tongues 11 will also approach accordingly, that is, the locking tongue 11 leaves the pot body 2.

[0077] A return spring 133 is disposed between the first driving plate 1321 and the body, and between the first driving member 131 and the body.

[0078] In this embodiment, a return spring 133 is arranged between the first drive plate 1321 and the body. When the first drive plate 1321 is moved by the driving force, the return spring 133 will be compressed or stretched. Once the driving force disappears, the return spring 133 will release the stored energy and push the first drive plate 1321 back to the initial position. A return spring 133 is also arranged between the first drive member 131 and the body. When the first drive member 131 moves, the return spring 133 will deform accordingly. When the external force disappears, the return spring 133 will help the first drive member 131 return to the initial position, and then the second drive plate 1322 connected to the first drive member 131 will also return to the initial position, ensuring the stability and reliability of the system.

[0079] The remaining components of this embodiment are basically the same as those of Embodiment 1 and will not be described in detail here.

[0080] Embodiment 4:

[0081] like Fig.13 As shown, this embodiment provides a pressure cooker cover 1, which differs from Embodiment 1 as follows.

[0082] The main body is provided with an actuator 15 that cooperates with the opening and closing mechanism 13, and the actuator 15 is constructed to rotate a push rod 156 arranged on a first driving member 131; a protrusion 1311 is formed on the side of the first driving member 131 facing the exhaust valve (12), and the exhaust valve 12 includes a valve core 121 that moves between an open position and a closed position. The protrusion 1311 on the first driving member 131 is located on the side of the valve core 121 away from the push rod 156. When the push rod 156 rotates toward the valve core 121, the protrusion 1311 causes the valve core 121 to move from the closed position to the open position under the action of the push rod 156.

[0083] In this embodiment, when the user needs to open the valve core 121 to release the pressure, the push rod 156 can be rotated to rotate the push rod 156 toward the valve core 121, and in this process, the push rod 156 contacts the protrusion 1311 on the first driving member 131. As the push rod 156 rotates further, the protrusion 1311 pushes the valve core 121 from the closed position to the open position under the action of the push rod 156. Once the valve core 121 reaches the open position, steam or pressure can pass freely. The difference between this embodiment and embodiment 3 is that the relative position of the protrusion 1311 and the valve core 121 is different, so the moving direction of the push rod 156 is also opposite.

[0084] The second driving member 132 includes a connecting plate 1323 and a first driving plate 1321 and a second driving plate 1322 rotatably arranged at both ends of the connecting plate 1323. The second driving plate 1322 is connected to the first driving member 131 to drive the connecting plate 1323 to rotate under the action of the first driving member 131. The first driving plate 1321 approaches or moves away from the second driving plate 1322 as the connecting plate 1323 rotates to realize the opening and closing of the lock tongue assembly. A return spring 133 is configured between the first driving plate 1321 and the main body and between the first driving member 131 and the main body.

[0085] In this embodiment, when the first driving member 131 moves, it interacts with the second driving plate 1322. The second driving plate 1322 moves under the action of the first driving member 131, and this movement is transmitted to the first driving plate 1321 through the second driving plate 1322 via the connecting plate 1323. Since the two ends of the connecting plate 1323 are respectively connected to the first driving plate 1321 and the second driving plate 1322, the first driving plate 1321 will approach the second driving plate 1322 as the connecting plate 1323 rotates. The first driving plate 1321 is connected to the locking tongue assembly, so when the first driving plate 1321 approaches the second driving plate 1322, the two locking tongues 11 will also approach accordingly, that is, the locking tongue 11 leaves the pot body 2.

[0086] The remaining components of this embodiment are basically the same as those of Embodiment 1 and will not be described in detail here.

[0087] Embodiment 5:

[0088] In this embodiment, if Fig.14 As shown, the first driving member 131 is provided with an arc-shaped guide groove 1313 which is radially symmetrically arranged along the main body, and the second driving member 132 includes a first driving plate 1321 and a second driving plate 1322 which are relatively arranged, and the first driving plate 1321 and the second driving plate 1322 are both connected with a lock tongue 11, and the first driving plate 1321 and the second driving plate 1322 are both provided with a guide column 1321a; the main body is provided with an actuator 15 fixedly connected to the first driving member 131, and the actuator 15 opens the exhaust valve 12 by translation and drives the guide column 1321a to move along the guide groove 1313 to open and close the lock tongue assembly.

[0089] The translational movement of the actuator 15 first triggers the opening mechanism of the exhaust valve 12, allowing the steam or pressure in the pot body 2 to be released. As the actuator 15 further translates, the guide post 1321a is driven to move along the guide groove 1313. Since the first drive plate 1321 and the second drive plate 1322 are both connected to the guide post 1321a, the two drive plates will also move accordingly, thereby causing the locking tongue 11 to open and close.

[0090] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A pressure cooker cover, comprising a body, characterized in that: The body is provided with a lock tongue assembly, an exhaust valve (12), and an opening and closing mechanism (13) linked to the lock tongue assembly, wherein the lock tongue assembly comprises at least two lock tongues (11); the opening and closing mechanism (13) comprises a first driving member (131) for opening the exhaust valve (12) and a second driving member (132) for driving the lock tongue assembly to open and close radially along the body, the first driving member (131) is connected to and drives the second driving member (132), and the second driving member (132) is fixedly connected to the lock tongue assembly; A stop rod (14) is provided, and the stop rod (14) moves between a first position for limiting the movement of the second driving member (132) and a second position for allowing the second driving member (132) to move as pressure changes; when the first driving member (131) opens the exhaust valve (12), the stop rod (14) moves from the first position to the second position so that the first driving member (131) drives the second driving member (132) to move, and the second driving member (132) drives the locking tongue assembly to open and close radially along the body.

2. The pressure cooker cover according to claim 1, characterized in that: The body is provided with an actuating member (15) cooperating with the opening and closing mechanism (13); the actuating member (15) is configured as a button; the actuating member (15) is provided with a first oblique tooth (151) having a first inclined surface and a second oblique tooth (152) having a second inclined surface; the first driving member (131) is provided with a third oblique tooth (1312) having a third inclined surface, and the second driving member (132) is provided with a fourth oblique tooth (1322a) having a fourth inclined surface; when the actuating member (15) is directed toward the first driving member (131) and the second driving member (132), the actuating member (15) is provided with a first oblique tooth (151) having a first inclined surface and a second oblique tooth (152) having a second inclined surface. When the actuator (132) moves, the first inclined surface abuts against the third inclined surface so that the actuator (15) can drive the first driving member (131), and the second inclined surface abuts against the fourth inclined surface so that the actuator (15) can drive the second driving member (132); the distance between the first inclined surface and the third inclined surface is smaller than the distance between the second inclined surface and the fourth inclined surface so that the actuator (15) first drives the first driving member (131) and then drives the second driving member (132).

3. The pressure cooker cover (1) according to claim 2, characterized in that: The first driving member (131) is provided with a guide groove (1313), and the second driving member (132) comprises a first driving plate (1321) and a second driving plate (1322) which are arranged opposite to each other, the first driving plate (1321) and the second driving plate (1322) are both connected to the locking tongue (11), the first driving plate (1321) is formed with a guide column (1321a) extending into the guide groove (1313), the second driving plate (1322) is provided with the fourth oblique tooth (1322a), and the guide column (1321a) moves in the guide groove (1313) to open the exhaust valve (12).

4. The pressure cooker cover according to claim 3, characterized in that: A return spring (133) is provided between the first drive plate (1321) and the second drive plate (1322), and between the second drive plate (1322) and the first drive member (131).

5. The pressure cooker cover according to claim 1, characterized in that: The first driving member (131) is configured as a rotating disk, and the second driving member (132) comprises a first driving plate (1321) and a second driving plate (1322) which are arranged opposite to each other, the first driving plate (1321) and the second driving plate (1322) are both connected to the locking tongue (11), a guide column (1321a) is arranged on the first driving plate (1321), and an arc-shaped guiding groove (1313) corresponding to the guide column (1321a) is opened on the first driving member (131), and when the first driving member (131) rotates, the guide groove (1313) drives the guide column (1321a) to move in the guide groove (1313) so that the locking tongue assembly opens and closes.

6. The pressure cooker cover according to claim 5, characterized in that: The main body is provided with an actuating member (15) cooperating with the opening and closing mechanism (13); the actuating members (15) are configured in two and both are connected to the first driving member (131); the two actuating members (15) move closer to or farther from each other to enable the first driving member (131) to rotate.

7. The pressure cooker cover according to claim 6, characterized in that: A return spring (133) is arranged between the two actuating members (15).

8. The pressure cooker cover according to claim 5, characterized in that: The main body is provided with an actuating member (15) cooperating with the first driving member (131), and the actuating member (15) is constructed as a knob; the first driving member (131) is provided with claws distributed along its circumference, and the actuating member (15) is provided with square holes cooperating with the claws distributed along its circumference, and the square holes correspond to the claws one by one, and when the actuating member (15) rotates, it can drive the first driving member (131) to rotate.

9. The pressure cooker cover according to claim 5, characterized in that: The main body is provided with an actuating member (15) cooperating with the first driving member (131), and the actuating member (15) includes a handle (154) and a push plate (155) rotatably connected to the handle (154), and the handle (154) drives the push plate (155) to translate by rotation to drive the first driving member (131) to rotate.

10. The pressure cooker cover according to claim 1, characterized in that: The main body is provided with an actuating member (15) cooperating with the opening and closing mechanism (13), the actuating member (15) comprising a handle (153) having a cavity and a push rod (156) passing through the cavity, the handle (153) is provided with a clearance groove (1531), one end of the push rod (156) is connected to the first driving member (131), and the other end of the push rod (156) passes through the clearance groove (1531); a protrusion (1311) is formed on one side of the first driving member (131) facing the exhaust valve (12), and the The exhaust valve (12) includes a valve core (121) that moves between an open position and a closed position. The protrusion (1311) is located on a side of the valve core (121) close to the handle (153). When the handle (153) moves in a direction away from the first driving member (131), the clearance groove (1531) drives the push rod (156) to rotate. The first driving member (131) moves the valve core (121) from the closed position to the open position under the drive of the push rod (156).

11. The pressure cooker cover according to claim 8, characterized in that: The second driving member (132) comprises a connecting plate (1323) and a first driving plate (1321) and a second driving plate (1322) rotatably arranged at two ends of the connecting plate (1323); the second driving plate (1322) is connected to the first driving member (131) so as to drive the connecting plate (1323) to rotate under the action of the first driving member (131); the first driving plate (1321) approaches or moves away from the second driving plate (1322) as the connecting plate (1323) rotates so as to realize the opening and closing of the locking tongue assembly.

12. The pressure cooker cover according to claim 9, characterized in that: A return spring (133) is disposed between the first driving plate (1321) and the body, and between the first driving member (131) and the body.

13. The pressure cooker cover according to any one of claims 1 to 10, characterized in that: The main body is provided with an actuating member (15) cooperating with the opening and closing mechanism (13), and the actuating member (15) is constructed to rotate a push rod (156) provided on the first driving member (131); a protrusion (1311) is formed on a side of the first driving member (131) facing the exhaust valve (12), and the exhaust valve (12) includes a valve core (121) moving between an open position and a closed position, and the protrusion (1311) is located on a side of the valve core (121) away from the push rod (156). When the push rod (156) rotates toward the valve core (121), the protrusion (1311) causes the valve core (121) to move from the closed position to the open position under the action of the push rod (156).

14. The pressure cooker cover according to claim 11, characterized in that: A return spring (133) is disposed between the first driving plate (1321) and the body, and between the first driving member (131) and the body.

15. The pressure cooker cover according to claim 1, characterized in that: The first driving member (131) is provided with an arc-shaped guide groove (1313) which is radially symmetrically arranged along the main body; the second driving member (132) comprises a first driving plate (1321) and a second driving plate (1322) which are arranged opposite to each other; the first driving plate (1321) and the second driving plate (1322) are both connected to the locking tongue (11); the first driving plate (1321) and the second driving plate (1322) are both provided with a guide column (1321a); ​​the main body is provided with an actuating member (15) fixedly connected to the first driving member (131); the actuating member (15) opens the exhaust valve (12) by translation and drives the guide column (1321a) to move along the guide groove (1313) so that the locking tongue assembly is opened and closed.

16. A pressure cooker, comprising a cooker body (2) and a cooker cover (1), characterized in that: The pot cover (1) comprises the pressure cooker cover according to any one of claims 1 to 12.

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