NL2023837B1

NL2023837B1 - Intelligent pressure-controlled pressure cooker

Info

Publication number: NL2023837B1
Application number: NL2023837A
Authority: NL
Inventors: Wu Xianfeng; Li Guiyu
Original assignee: Nanjing Enwell Tech Service Co Ltd
Priority date: 2018-10-18
Filing date: 2019-09-17
Publication date: 2020-08-19
Also published as: DE102018131350B4; NL2023837A; CN109222634A; DE102018131350A1

Abstract

INTELLIGENT PRES SURE-CONTROLLED PRESSURE COOKER The present application provides an intelligent pressure-controlled pressure 5 cooker, comprising a pot body, a pot cover, a safety valve, a linkage mechanism and an electromagnetic attraction mechanism. In application, if the air pressure in the pot body is higher than a preset value, a pressure relief body in the safety valve is jacked up to form a gap, and gas is discharged from the pot body through the gap to realize pressure control. 10 When gas needs to be discharged, the electromagnetic attraction mechanism is started, and a magnetic ﬂoat is adsorbed by magnetism to form a moving action; in addition, the formed moving action is transmitted to a gas discharge body through the linkage mechanism to rotate the gas discharge body, so that first gas discharge holes and second gas discharge 15 holes are communicated to form a gas discharge passage, and the gas in the pot body is discharged. According to the present application, two operations of pressure control and gas discharge can be accomplished through one safety valve, avoiding arranging multiple valve bodies on the pot cover, and improving the reliability of the pressure cooker. In addition, 20 the gas in the pot body is discharged through electromagnetic adsorption, avoiding manually starting a gas discharge valve, and reducing the scald probability.

Description

INTELLIGENT PRESSURE-CONTROLLED PRESSURE COOKER FIELD OF THE INVENTION

[0001] The present application relates to the field of intelligent home technologies, and in particular to an intelligent pressure-controlled pressure cooker.

BACKGROUND OF THE INVENTION

[0002] A high pressure cooker, also called a pressure cooker and a pressure pot, 1s a cooking pot to enable water to reach a higher temperature without boiling by applying pressure to the water, so as to accelerate the efficiency of stewing food according to the physical phenomenon that the boiling temperature of a liquid rises under high pressure. In practical application, as water in a pressure cooker gradually changes to the gaseous state, the pressure in the pressure cooker gradually increases. In order to avoid overpressure explosion, a safety valve is disposed on the pressure cooker.

[0003] A safety valve 1s usually disposed on a pot cover of a pressure cooker, and serves as a pressure safety valve. When the air pressure in the pot exceeds an upper pressure limit, the safety valve is automatically opened to release some gas in the pot to reduce the air pressure in the pot. A venting valve is usually further disposed on the pressure cooker for being manually opened to release the gas in the pot at the end of cooking, so that the air pressure inside and outside the pot is kept constant. Thus,

overpressure explosion or scalding a user is avoided at the moment the pressure cooker is opened. It can be seen that an existing pressure cooker needs to be provided with a safety valve and a venting valve on a pot cover, thus reducing the use reliability of the pot; in addition, it is easy to scald a user when gas is discharged at the end of cooking.

SUMMARY OF THE INVENTION

[0004] The present application provides an intelligent pressure-controlled pressure cooker to solve the problem that a traditional pressure cooker has low reliability and it is easy to scald a user.

[0005] The intelligent pressure-controlled pressure cooker provided in the present application comprises a pot body and a pot cover, wherein a safety valve is disposed on the pot cover, a linkage mechanism for connecting the safety valve is disposed inside the pot cover, and an electromagnetic attraction mechanism 1s disposed on a side wall of the pot body.

[0006] The safety valve comprises a valve body housing; venting holes are disposed on the top of the valve body housing, and a stepped pipe is disposed at the bottom of the valve body housing; a return spring, a gas discharge body and a pressure relief body are sequentially disposed inside the valve body housing from top to bottom; first gas discharge holes are disposed inside the gas discharge body, and second gas discharge holes are disposed inside the pressure relief body: the gas discharge body 1s rotatable relative to the pressure relief body so that the first gas discharge holes andthe second gas discharge holes are communicated or misaligned with each other; a rotating portion is disposed on a side of the gas discharge body to drive the gas discharge body to rotate; one end of the return spring is connected to the top inner side of the valve body housing, and the other end is in contact with the gas discharge body; the bottom of the pressure relief body is brought into contact with the stepped pipe by the elastic force of the return spring; and when the air pressure inside the pot body exceeds a preset value, the pressure relief body is jacked up, and excess gas is discharged through the venting holes.

[0007] The linkage mechanism comprises a transmission rod set and a magnetic float; one end of the transmission rod set 1s hinged to the rotating portion, and the other end is connected to the magnetic float; the transmission rod set transmits a moving action of the magnetic float to drive the gas discharge body to rotate; the magnetic float is disposed at an edge of the pot cover, and after the pot cover 1s mounted on the pot body, the magnetic float is located directly above the electromagnetic attraction mechanism so that the electromagnetic attraction mechanism drives the magnetic float to move through magnetic attraction.

[0008] It can be seen from the above technical solution that in practical use of the intelligent pressure-controlled pressure cooker provided in the present application, if the air pressure generated in the pot body during cooking is higher than the preset value, the pressure relief body in thesafety valve is jacked up, and a gap is formed between the pressure relief body and the valve body housing, so that gas in the pot body is discharged from the pot body through the formed gap and the venting holes. After the air pressure in the pot body is lower than the preset value, the pressure relief body is restored to an initial position by the return spring to maintain a high pressure in the pot body.

[0009] When gas needs to be discharged at the end of cooking, the electromagnetic attraction mechanism is started, so that the electromagnetic attraction mechanism generates magnetism, and the magnetic float is adsorbed to form a moving action; in addition, the formed moving action is transmitted to the gas discharge body through the linkage mechanism to rotate the gas discharge body, so that the first gas discharge holes mn the gas discharge body and the second gas discharge holes in the pressure relief body are communicated to form a gas discharge passage, the gas in the pot body is discharged, and the air pressure in the pot body 1s reduced.

[0010] According to the present application, two operations of pressure control and gas discharge can be accomplished through one safety valve, avoiding arranging multiple valve bodies on the pot cover, and improving the reliability of the pressure cooker. In addition, the gas in the pot body is discharged through electromagnetic adsorption, avoiding manually starting a gas discharge valve, and reducing the scald probability.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 1s a schematic structural diagram of an intelligent pressure-controlled pressure cooker according to the present application;

[0012] FIG. 2 is a schematic sectional view of a safety valve of a pressure 5 cooker according to the present application;

[0013] FIG. 3 is a schematic top sectional view of the safety valve of the pressure cooker according to the present application;

[0014] FIG. 4 is a schematic structural diagram of the safety valve of the pressure cooker in an initial state according to the present application;

[0015] FIG. 5 1s a schematic structural diagram of the safety valve of the pressure cooker in a pressure relief state according to the present application;

[0016] FIG. 6 ís a schematic structural diagram of a linkage mechanism of the pressure cooker according to the present application.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Referring to FIG. 1, FIG. 1 is a schematic structural diagram of an intelligent pressure-controlled pressure cooker according to the present application. It can be seen from FIG. 1 that the intelligent pressure-controlled pressure cooker provided in the present application comprises a pot body 1 and a pot cover 2, wherein the pot body 1 and the pot cover 2 are used in combination, and the pot body 1 and the pot cover 2 are sized, so that the pot cover 2 1s mounted on the pot body 1 to maintainsufficient sealing.

[0018] Generally, the pot body 1 has a cylindrical structure, and the pot cover 2 has a disc-shaped structure adapted to the pot body 1. In practical application, the pot body 1 is used to hold food to be stewed. According to different heating principles of the pressure cooker, the pot body 1 should also have different structures. For example, when the pressure cooker is an electric pressure cooker, a heating inner bowl and an outer casing may also be disposed in the pot body 1, wherein a corresponding electro-thermal device is disposed in the outer casing, and the heating inner bowl 1s used to hold food.

[0019] In the technical solution provided in the present application, a safety valve 3 is disposed on the pot cover 2, a linkage mechanism 4 for connecting the safety valve 3 is disposed inside the pot cover 2, and an electromagnetic attraction mechanism 5 1s disposed on a side wall of the pot body 1. In practical application, in order not to affect the cooking process of food in the pot body 1 and the action accuracy of the linkage mechanism 4, the pot cover 2 may have a double-layer structure. The safety valve 3 penetrates the double-layer structure of the pot cover 2, and the linkage mechanism 4 is disposed between an outer layer and an inner layer of the pot cover 2. An action is transmitted by a rod structure, and the linkage mechanism 4 may extend from the position of the safety valve 3 to the electromagnetic attraction mechanism 5. In the present application, thepot cover 2 in the double-layer structure can not only isolate the linkage mechanism 4 from a cooking space in the pot body 1, but also reduce the heat dissipation during a stewing process, so that food can absorb more heat, thereby improving the efficiency of food stewing. In addition, the double-layer structure can also lower the temperature of the outer layer of the pot cover 2, preventing a user from being scalded by the pot cover 2 when the pot cover 2 is touched or opened.

[0020] Further, as shown in FIG. 1, the safety valve 3 is disposed at a center position of the pot cover 2, and two linkage mechanisms 4 are symmetrically disposed on both sides of the safety valve 3. Correspondingly, two electromagnetic attraction mechanisms 5 are symmetrically disposed on the side wall of the pot body 1. On the one hand, arranging the safety valve 3 at the center position of the pot cover 2 can improve the overall aesthetics of the pot cover; on the other hand, arranging the safety valve 3 at the center position can also facilitate the symmetrical arrangement of the linkage mechanisms 4 from two directions. The symmetrically arranged linkage mechanisms 4 can collectively initiate an action to rotate the gas discharge body 34, reducing adsorption force requirements for the electromagnetic attraction mechanisms 5, and reducing attraction requirements for the electromagnetic attraction mechanisms 5.

[0021] As shown in FIG. 2, the safety valve 3 comprises a valve bodyhousing 31 located at the outermost side. The valve body housing 31 functions to facilitate the mounting of the entire safety valve 3 on the pot cover 2. In practical application, the safety valve 3 is directly exposed to the cooking space, which has a large amount of steam and a higher temperature. Therefore, in order to avoid scalding a user, the surface of the valve body housing 31 should be provided with a protective layer made of a non-metallic material (e.g., resin). Venting holes 311 are disposed on the top of the valve body housing 31, and a stepped pipe 312 is disposed at the bottom of the valve body housing 31. The venting holes 311 may be evenly distributed at the center of the safety valve 3 for forming a venting passage of the pot.

[0022] A return spring 33, a gas discharge body 34 and a pressure relief body 35 are sequentially disposed inside the valve body housing 31 from top to bottom. In practical application, the return spring 33, the gas discharge body 34 and the pressure relief body 35 are encapsulated inside the valve body housing 31. Only a hole for passing a linkage mechanism 4 1s disposed at a side of the valve body housing 31, and the hole should ensure the sealing property under the premise that the linkage mechanism 4 slides in the hole, i.e, preventing gas that enters the gap between the valve body housing 31 and the gas discharge body 34 as well as the pressure relief body 35 from affecting an action of the linkage mechanism 4.

[0023] First gas discharge holes 361 are disposed inside the gas dischargebody 34, and second gas discharge holes 362 are disposed inside the pressure relief body 35; the gas discharge body 34 is rotatable relative to the pressure relief body 35 so that the first gas discharge holes 361 and the second gas discharge holes 362 are communicated or misaligned with each other. In the present application, both the gas discharge body 34 and the pressure relief body 35 may have a cylindrical structure, and the gas discharge body 34 and the pressure relief body 35 have a coaxial relationship, so that positions of the first gas discharge holes 361 and the second gas discharge holes 362 more easily correspond to each other to form a communicated or misaligned relationship. The first gas discharge holes 361 and the second gas discharge holes 362 may be circular through holes or curved strip holes that penetrate the gas discharge body 34 and the pressure relief body 35, respectively. In order to increase the gas release efficiency, the number of the first gas discharge holes 361 and the number of the second gas discharge holes 362 are plural and identical.

[0024] In practical application, in an initial state or during cooking, as shown in FIG. 4, the positions of the first gas discharge holes 361 and the second gas discharge holes 362 are staggered from each other. At this time, gas in the pot body 1 does not enter a cavity inside the valve body housing 31 through the second gas discharge holes 362, that is, no passage is formed. When gas in the pot body 1 needs to be released, the gas discharge body 34 is rotated so that positions of the first gas discharge holes 361 andthe second gas discharge holes 362 overlap, as shown in FIG. 2, a gas passage 1s formed. At this time, the gas in the pot body 1 enters the cavity imside the valve body housing 31 from the second gas discharge holes 362 through the first gas discharge holes 361, and then is released to an external environment through the venting holes 311.

[0025] In order to facilitate rotating the gas discharge body 34, as shown in FIG. 3, a rotating portion 37 1s disposed on a side of the gas discharge body 34 to drive the gas discharge body 34 to rotate. In practical application, if the safety valve 3 is disposed at the center position of the pot cover 2 and two linkage mechanisms 4 and two electromagnetic attraction mechanisms 5 are disposed, two rotating portions 37 may be two symmetrically disposed for respectively connecting the two linkage mechanisms 4, so that the gas discharge body 34 is rotated by the two linkage mechanisms 4 to reduce the driving force requirement. If the safety valve 3 is not disposed at the center position of the pot cover 2, the safety valve 3 can be placed as close as possible to an electromagnetic attraction mechanism 5 to shorten the length of a linkage mechanism 4.

[0026] In some embodiments of the present application, the safety valve 3 further comprises a valve body shaft 32; the valve body shaft 32 is disposed inside the valve body housing 31, and perpendicular to the top of the valve body housing 31; the valve body shaft 32 penetrates the return spring 33 and the gas discharge body 34, and the bottom of the valve body shaft 32extends into the pressure relief body 35; the gas discharge body 34 and the pressure relief body 35 are slidable along the valve body shaft 32. In this embodiment, the valve body shaft 32 is fixed inside the valve body housing 31 so that the gas discharge body 34 rotates about the valve body shaft 32.

[0027] Further, the portion where the valve body shaft 32 is in contact with the gas discharge body 34 1s a cylindrical structure so that the gas discharge body 34 rotates with the valve body shaft 32 as a rotating shaft; the portion where the valve body shaft 32 1s in contact with the pressure relief body 35 1s provided with a protrusion for preventing the pressure relief body 35 from rotating. In this embodiment, the protrusion can prevent the pressure relief body 35 from rotating with the gas discharge body 34 during the rotation of the gas discharge body 34, thereby facilitating staggering the positions of the first gas discharge holes 361 and the second gas discharge holes 362 from each other.

[0028] In the technical solution provided in the present application, one end of the return spring 33 is connected to the top inner side of the valve body housing 31, and the other end is in contact with the gas discharge body 34. The bottom of the pressure relief body 35 is brought into contact with the stepped pipe 312 by the elastic force of the return spring 33.

[0029] In order to control the pressure in the pot body 1 during the cooking process and avoid the danger caused by excessive pressure, automatic pressure relief can be realized by the pressure relief body 35. That is, whenthe pressure in the pot body 1 does not exceed a designed maximum pressure value, the bottom of the pressure relief body 35 is mn contact with the valve body housing 31 as shown in FIG. 4. When the air pressure inside the pot body 1 exceeds the designed maximum pressure value, that is, in a pressure relief state, the gas in the pot body 1 will jack up the pressure relief body 35 to form a gap, as shown in FIG. 5, and excess gas is discharged through the venting holes 311.

[0030] In practical use, due to the continuous heating of ingredients, the air pressure in a pot is also getting larger and larger. When the pressure in the pot is too large, it will seriously damage the sealing property of the pot, and even cause danger. Therefore, when the pressure in the pot body 1 exceeds the designed maximum pressure value, the pressure relief body 35 is jacked up by the pressure force in the pot body 1, so that a gap is formed between the pressure relief body 35 and the bottom of the valve body housing 31 to discharge some gas and reduce the air pressure in the pot body 1. Obviously, the magnitude of the designed maximum pressure value depends on the sum of the elastic force of the return spring 33 and the gravity of the pressure relief body 35. When a preset pressure value is relatively high, the return spring 33 having a relatively large elastic force may be used or the weight of the pressure relief body 35 may be increased, so that the pressure relief body 35 is not easily jacked up; when the designed maximum pressure value is relatively low, the return spring 33 having a relativelysmall elastic force may be used, or the weight of the pressure relief body 35 may be reduced, or the return spring 33 may not be used, so that the pressure relief body 35 can be jacked up by a relatively small pressure.

[0031] As shown in FIG. 6 and FIG. 3, the linkage mechanism 4 comprises atransmission rod set 41 and a magnetic float 42. The transmission rod set 41 1s used for transmitting an action of the magnetic float 42 to the safety valve 3; the magnetic float 42 is made of a magnetic material such as an alloy material of iron, cobalt, and nickel, and used for generating a movement by the magnetic force of the electromagnetic attraction mechanism 5. In order to control the action of the gas discharge body 34, one end of the transmission rod set 41 is hinged to the rotating portion 37, and the other end is connected to the magnetic float 42. The magnetic float 42 is disposed at an edge of the pot cover 2, and after the pot cover 2 is mounted on the pot body 1, the magnetic float 42 is located directly above the electromagnetic attraction mechanism 5 so that the electromagnetic attraction mechanism 5 drives the magnetic float 42 to move through magnetic attraction; then the moving action of the magnetic float 42 is transmitted through the transmission rod set 41 to drive the gas discharge body 34 to rotate.

[0032] In some embodiments of the present application, as shown in FIG. 3 and FIG. 6, the transmission rod set 41 comprises a first connecting rod 411, a transmission rod 412 and a second connecting rod

413. One end of the first connecting rod 411 is hinged to the rotating portion 37, and the other end is connected to the transmission rod 412 to convert the movement of the transmission rod 412 into the rotation of the gas discharge body 34; one end of the second connecting rod 413 is connected to the magnetic float 42, and the other end is connected to the transmission rod 412 to transmit the moving action of the magnetic float 42 to the transmission rod 412.

[0033] In the present embodiment, the moving action of the magnetic float 42 can be transmitted by the interaction between the first connecting rod 411, the transmission rod 412 and the second connecting rod 413. That is, the movement of the magnetic float 42 in a vertical direction is first transmitted to the transmission rod 412 through the second connecting rod 413, so that the transmission rod 412 also moves when the magnetic float 42 performs the action in the vertical direction. Then, the movement of the transmission rod 412 is transmitted to the rotating portion 37 through the first connecting rod 411 to convert the movement of the transmission rod 412 into the rotation of the gas discharge body 34.

[0034] In some embodiments of the present application, as shown in FIG. 6, the magnetic float 42 further comprises a floating shaft 421, a floating block 422 and a floating spring 423; the floating block 422 has a block structure made of a magnetic material; the floating shaft 421 penetrates the floating block 422 and the floating spring 423. In this embodiment, thefloating shaft 421 can move the floating block 422 along the floating shaft

421. Therefore, the floating shaft 421 can be placed vertically, thereby moving the floating block 422 in the vertical direction. In addition, the floating shaft 421 can also facilitate achieving the correspondence between the position of the floating block 422 and the position of the electromagnetic attraction mechanism 5 after the pot cover 2 is mounted on the pot body 1, so that the floating block 422 is easily attracted by the magnetic force generated by the electromagnetic attraction mechanism 5.

[0035] The lower end of the floating spring 423 is connected to the floating block 422, and the upper end is fixed on the outer casing of the pot body 1 to reset the floating block 422 by the elastic force of the floating spring 423. The floating spring 423 can restore the position of the floating block 422 to an initial position by the elastic force when the electromagnetic attraction mechanism 5 does not attract the floating block 422, so that the pot cover 2 can be opened.

[0036] Further, as shown in FIG. 6, the electromagnetic attraction mechanism 5 comprises an electromagnetic coil 51 and an adsorbing body 52; the adsorbing body 52 is disposed at the top of the electromagnetic coil 51 so that the magnetic float 42 is adsorbed by the adsorbing body 52 after the electromagnetic coil 51 is energized. In this embodiment, the adsorbing body 52 may have a cylindrical structure made of a soft magnetic material, and the electromagnetic coil 51 is wound around the adsorbing body 52;

through the magnetic effect of current, after the electromagnetic coil 51 is energized, the adsorbing body 52 generates magnetism to adsorb the floating block 422. Due to the use of the soft magnetic material, after the electromagnetic coil 51 is de-energized, the magnetism on the adsorbing body 52 quickly disappears, so that the floating block 422 is restored to the initial position.

[0037] In some embodiments of the present application, the pressure cooker further comprises a controller 6 and a pressure sensor 7; the pressure sensor 7 is disposed on an inner side wall of the pot body 1, and the controller 6 is connected to the electromagnetic attraction mechanism 5 and the pressure sensor 7, respectively, so that the air pressure inside the pot body 1 is detected by the pressure sensor 7, and the electromagnetic attraction mechanism 5 is controlled to stop attracting the magnetic float 42 when the air pressure is balanced with the outside. By arranging the controller 6 and the pressure sensor 7, it can be automatically determined whether the pressure in the pot body 1 is balanced with the outside when the pressure cooker performs gas discharge, thus automatically controlling the magnetic force of the electromagnetic attraction mechanism 5 on the magnetic float 42 to be capable of manually opening the pot cover 2.

[0038] Further, the pressure cooker provided in the present application may further comprise a communication module. The communication module can establish a communication connection between a user's smart terminaldevice, such as a mobile phone, a tablet computer, etc., and a electromagnetic attraction mechanism 5 or the controller 6, thereby controlling the electromagnetic attraction mechanism 5 by using the smart terminal device, that 1s, the communication module can transmit an operation command on a user terminal to the controller 6 or the electromagnetic attraction mechanism 5 to cause a corresponding action. For example, when a user will perform a gas discharge operation, a control command can be issued through the smart terminal device; after receiving the control command, the controller 6 or the electromagnetic attraction mechanism 5 controls the electromagnetic coil 51 to be energized to form a magnetic attraction effect.

[0039] It can be seen from the above technical solution that in practical use of the intelligent pressure-controlled pressure cooker provided in the present application, if the air pressure generated in the pot body 1 during cooking is higher than the preset value, the pressure relief body 35 in the safety valve 3 is jacked up, and a gap is formed between the pressure relief body 35 and the valve body housing 31, so that gas in the pot body 1 is discharged from the pot body 1 through the formed gap and the venting holes 311. After the air pressure in the pot body 1 is lower than the preset value, the pressure relief body is restored to an initial position by the return spring 33 to maintain a high pressure in the pot body 1.

[0040] When gas needs to be discharged at the end of cooking, theelectromagnetic attraction mechanism 5 is started, so that the electromagnetic attraction mechanism 5 generates magnetism, and the magnetic float 42 is adsorbed to form a moving action; in addition, the formed moving action is transmitted to the gas discharge body 34 through the linkage mechanism 4 to rotate the gas discharge body 34, so that the first gas discharge holes 361 in the gas discharge body 34 and the second gas discharge holes 362 in the pressure relief body 35 are communicated to form a gas discharge passage, the gas in the pot body 1 is discharged, and the air pressure in the pot body 1 is reduced.

According to the present application, two operations of pressure control and gas discharge can be accomplished through one safety valve 3, avoiding arranging multiple valve bodies on the pot cover 2, and improving the reliability of the pressure cooker.

In addition, the gas in the pot body 1 is discharged through electromagnetic adsorption, avoiding manually starting a gas discharge valve, and reducing the scald probability.

Claims

CONCLUSIONS

An intelligent pressure-controlled pressure cooker, comprising a pot body and a pot lid, wherein a safety valve is arranged on the pot lid, a coupling mechanism for connecting the safety valve is arranged inside the pot lid, and an electromagnetic attraction mechanism is arranged on a side wall of the pot body: wherein the safety valve includes a valve body housing; vent holes are provided on the top of the valve body housing, and a stepped pipe is provided on the bottom of the valve body housing; a return spring, a gas discharge body and a pressure discharge body are arranged sequentially from top to bottom within the valve body housing; first gas vent holes are provided inside the gas vent body, and second gas vent holes are provided inside the pressure discharge body; wherein the gas discharge body is rotatable with respect to the pressure discharge body so that the first gas discharge holes and the second gas discharge holes communicate with or deviate from each other; a rotating portion is provided on one side of the gas discharge body for rotating the gas discharge body; one end of the return spring 1s connected to the top inner side of the valve body housing, and the other end m in contact with the gas discharge body; the bottom of the pressure discharge body is brought into contact with the stepped pipe by the elastic force of the return spring, and when the air pressure within the pot body exceeds a predetermined value, the pressure discharge body is jacked up and excess gas is vented through the vent holes; and the clutch mechanism includes a transmission rod set and a magnetic float; one end of the transmission rod set is hingedly connected to the rotating portion, and the other end is connected to the magnetic float; wherein the transmission rod set transmits a moving action of the magnetic float to rotate the gas discharge body; the magnetic float is mounted on an edge of the pot lid, and after the pot lid is mounted on the pot body, the magnetic float is located directly above the electromagnetic attraction mechanism so that the electromagnetic attraction mechanism drives the magnetic float to move by magnetic attraction.

The intelligent pressure-controlled pressure cooker according to claim 1, wherein the pressure cooker further comprises a regulator and a pressure sensor, the pressure sensor being disposed on an inner side wall of the pot body, and the regulator being connected to the electromagnetic attraction mechanism and the pressure sensor, respectively, so that the air pressure in the pot body is detected by the pressure sensor, and the electromagnetic attraction mechanism is controlled to stop pulling the magnetic float when the air pressure is in balance with the external air pressure.

The intelligent pressure controlled pressure cooker of claim 1, wherein the safety valve further comprises a valve body shaft; the valve body shaft is disposed in the valve body housing and perpendicular to the top of the valve body housing; the valve body shaft passes through the return spring and the gas discharge body, and the bottom of the valve body shaft protrudes into the pressure discharge body; wherein the gas discharge body and the pressure discharge body are slidable along the valve body shaft.

The intelligent pressure-controlled pressure cooker according to claim 3, wherein the portion where the valve body shaft contacts the gas discharge body is a cylindrical structure such that the gas discharge body rotates with the valve body shaft as a rotating axis; wherein the portion where the valve body shaft contacts the pressure discharge body is provided with a protrusion to prevent the pressure discharge body from rotating.

The intelligent pressure-controlled pressure cooker of claim 1, wherein the transmission rod set comprises a first connecting rod, a transmission rod and a second connecting rod; wherein one end of the first connecting rod is pivotally connected to the rotating portion, and the other end is connected to the transmission rod to convert the movement of the transmission rod into the rotation of the gas discharge body; wherein one end of the second connecting rod 1s connected to the magnetic float, and the other end connected to the transmission rod to transmit the moving action of the magnetic float to the transmission rod.