CN211380798U - Cooking utensil and pot cover subassembly and pressure-starting protection valve thereof - Google Patents

Abstract

The utility model discloses a cooking utensil and pot cover subassembly and pressure rise protection valve thereof, cooking utensil has the culinary art chamber, the pot cover subassembly includes: the cover body is provided with a sensing piece; a pressure-raising protection valve, said pressure-raising protection valve comprising: the valve body is movably arranged on the cover body between a first position and a second position and is provided with a steam channel, a first steam inlet, a second steam inlet and a steam outlet which are respectively communicated with the steam channel, and the first steam inlet is positioned between the second steam inlet and the steam outlet; the magnetic part is arranged on the valve body; the valve core is movably arranged in the steam channel between an initial position and a pressure relief position, the valve core blocks the second steam inlet when in the initial position, and the valve core opens the second steam inlet when in the pressure relief position. According to the utility model discloses a cooking utensil's pot cover subassembly, the structure is few, simple structure, and with low costs.

Description

Cooking utensil and pot cover subassembly and pressure-starting protection valve thereof

Technical Field

The utility model relates to a cooking utensil technical field particularly, relates to a cooking utensil's pot cover subassembly, has cooking utensil of cooking utensil's pot cover subassembly and the pressure-starting protection valve that is used for cooking utensil.

Background

In the cooking utensil in the related art, the zero-pressure detection magnetic-sensing floater and the pressure relief device are generally in split design, and have more structural parts, more complex structures and higher cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a cooking utensil's pot cover subassembly, cooking utensil's pot cover subassembly structure is few, simple structure, and the cost is also lower.

The utility model discloses still provide one kind and have cooking utensil of cooking utensil's pot cover subassembly.

The utility model discloses still provide a pressure-starting protection valve for cooking utensil.

According to the utility model discloses cooking utensil's pot cover subassembly of first aspect embodiment, cooking utensil has the cooking chamber, the pot cover subassembly includes: the cover body is provided with a sensing piece; a pressure-raising protection valve, said pressure-raising protection valve comprising: the valve body is movably arranged on the cover body between a first position and a second position and is provided with a steam channel, a first steam inlet, a second steam inlet and a steam outlet which are respectively communicated with the steam channel, and the first steam inlet is positioned between the second steam inlet and the steam outlet; the magnetic part is arranged on the valve body; the valve core is movably arranged in the steam channel between an initial position and a pressure relief position, the valve core blocks the second steam inlet when in the initial position, and the valve core opens the second steam inlet when in the pressure relief position, wherein when the valve body is in the first position, the first steam inlet is communicated with the cooking cavity, and the valve core is in the initial position; when the pressure of the cooking cavity reaches the pressure rise pressure, the valve body moves to the second position, the cover body blocks the first steam inlet, and the magnetic part is communicated with the induction part; when the pressure of the cooking cavity reaches the pressure relief pressure, the valve core moves to the pressure relief position to enable the second steam inlet to be communicated with the steam outlet, and the pressure relief pressure is greater than the pressure starting pressure.

According to the pot cover assembly of the cooking appliance, when the valve body is located at the first position, the valve core is located at the initial position, the valve core blocks the second steam inlet, the first steam inlet is communicated with the cooking cavity, and at the moment, cold air in the cooking cavity enters the steam channel from the first steam inlet and is discharged through the steam outlet; when the pressure of the cooking cavity reaches the pressure, the valve body moves to the second position, the cover body blocks the first steam inlet, and the magnetic part moves along with the valve body to communicate with the sensing part; when the pressure of the cooking cavity continues to increase and reaches the pressure relief pressure, the valve core moves to the pressure relief position, and at the moment, the second steam inlet is opened, so that instant pressure relief is realized. Therefore, the pressure relief function and the zero pressure detection function are integrated on the pressure starting protection valve, and the pressure relief device and the zero pressure detection device do not need to be arranged on the cover body respectively, so that the structural part of the cover body is reduced, the structure is simpler, and the cost is lower.

In addition, according to the utility model discloses cooking utensil's pot cover subassembly still has following additional technical characterstic:

according to some embodiments of the utility model, the valve body is equipped with the holding tank, the magnetic part is installed in the holding tank.

In some embodiments of the present invention, the one end of the steam channel is connected to the bottom wall of the holding tank, a sealing gasket is disposed in the holding tank, and the sealing gasket is sealed and plugged to the one end of the steam channel.

In some embodiments of the present invention, the valve cartridge comprises: a valve plate; the sealing ring is sleeved on the valve plate to open and close the second steam inlet; and one end of the elastic piece is abutted against the bottom of the accommodating groove, the other end of the elastic piece is connected with the valve plate, and the elastic piece has a force which normally drives the valve plate to the second steam inlet.

In some embodiments of the present invention, a positioning column is disposed at one end of the valve plate close to the second steam inlet, and the positioning column is fitted in the second steam inlet; one end of the valve plate close to the steam exhaust port is provided with a spring positioning column, and at least one part of the elastic piece is sleeved on the periphery of the spring positioning column.

In some embodiments of the present invention, the inner peripheral wall of the valve body is provided with a sealing step, the sealing ring is supported on the sealing step, the pressure of the cooking cavity reaches the pressure relief pressure, and the sealing ring is separated from the sealing step.

According to the utility model discloses a some embodiments, the cover is equipped with the jump ring just on the valve body the jump ring stretches into in the steam passage, the outer peripheral face of case is equipped with the backstop platform, the case is in during initial position jump ring backstop the last edge of backstop platform, the case is in during the pressure release position jump ring backstop the lower edge of backstop platform.

The utility model discloses an in some embodiments, the magnetic part sets up the upper end of valve body, the steam vent sets up the magnetic part below, the jump ring sets up the below of steam vent.

In some embodiments of the present invention, the clamp spring is disposed on the first steam inlet, and the clamp spring passes through the first steam inlet and stretches into the steam channel.

According to some embodiments of the utility model, the valve body is equipped with leads vapour portion, the terminal surface of leading vapour portion has leads the vapour groove, lead the vapour groove intercommunication the second admission mouth just link up lead the outer peripheral face of vapour portion.

According to some embodiments of the present invention, the pot cover assembly of the cooking appliance further comprises: the steam exhaust valve is arranged on the cover body and is provided with a steam exhaust channel, the steam exhaust channel is communicated with the cooking cavity and the external space when the pressure of the cooking cavity reaches a pressure limiting pressure, and the pressure limiting pressure is greater than the pressure starting pressure and less than the pressure relief pressure.

According to the utility model discloses cooking utensil of second aspect embodiment includes: a lid assembly for a cooking appliance according to embodiments of the first aspect of the present invention; the cover body covers the pot body, and the cooking cavity is defined by the cover body and the pot body together.

According to the utility model discloses cooking utensil utilizes cooking utensil's pot cover subassembly as above, the structure is few, simple structure and with low costs.

According to the utility model discloses a rise pressure protection valve for cooking utensil of third aspect embodiment includes: the method comprises the following steps: the upper end of the valve body is provided with an accommodating groove, a steam channel, a first steam inlet, a second steam inlet and a steam outlet which are respectively communicated with the steam channel, and the first steam inlet is positioned between the second steam inlet and the steam outlet; the magnetic part is arranged in the accommodating groove, the steam outlet is arranged below the magnetic part, and the second steam inlet is arranged at the lower end of the valve body; a valve cartridge movably disposed within the vapor passage between an initial position and a pressure relief position, wherein the valve cartridge comprises: a valve plate; the sealing ring is sleeved on the valve plate; the elastic piece, a pot head of elastic piece is established on the valve block and other end butt in the bottom of holding tank, the elastic piece has will the valve block often drives to the power of second steam inlet, the case is in during initial position the sealing washer shutoff second steam inlet, the case is in during the pressure release position the sealing washer is opened the second steam inlet.

According to some embodiments of the utility model, the jump ring sets up on the first steam inlet, the jump ring passes through first steam inlet stretches into steam channel.

According to the pressure-starting protection valve for the cooking utensil provided by the embodiment of the utility model, before starting pressure, cold air in the cooking utensil is discharged through the first air inlet and the steam channel; after the pressure is raised, the valve body is lifted, the first steam inlet is blocked, and the magnetic part is communicated with the induction part on the cooking utensil. When the valve core is positioned at the initial position, the elastic piece drives the valve plate to the second steam inlet, and the sealing ring blocks the second steam inlet; when the pressure in the cooking utensil reaches the pressure relief pressure, the pressure overcomes the elastic force of the elastic piece and lifts the valve plate upwards, the valve core moves to the pressure relief position, and at the moment, the second steam inlet is opened by the sealing ring, so that instantaneous pressure relief is realized, and safety protection is achieved. Therefore, the pressure starting protection valve integrates the pressure relief function and the zero pressure detection function, and has the advantages of few structural components, simple structure and lower cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a cross-sectional view of a cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pot cover assembly of a cooking appliance according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a pot cover assembly of a cooking appliance according to an embodiment of the present invention;

fig. 4 is an exploded view of a pressure-rise protection valve for a cooking appliance according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a pressure-rise protection valve for a cooking appliance according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a pressure protection valve for a cooking appliance according to an embodiment of the present invention.

Reference numerals:

cooking appliance 1, pot lid assembly 10 of cooking appliance,

A cover body 100, a cooking cavity 101, a sensing member 110, a valve seat 120,

The pressure-starting protection valve 200, the valve body 210, the steam channel 211, the first steam inlet 212, the second steam inlet 213, the steam outlet 214, the accommodating groove 215, the sealing gasket 216, the steam guide part 217, the steam guide groove 218, the magnetic part 220, the valve core 230, the valve plate 231, the sealing ring 232, the elastic part 233, the positioning column 234, the stopping table 235, the spring positioning column 236, the snap spring 240, the clamping groove 241, the float gasket 250, the pressure-starting protection valve,

And a pan body 20.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A pot cover assembly 10 of a cooking appliance according to an embodiment of the first aspect of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, according to the pot cover assembly 10 of the cooking appliance of the embodiment of the present invention, the cooking appliance has a cooking cavity 101, and the pot cover assembly 10 includes: a cover body 100 and a pressure-starting protection valve 200.

Specifically, the cover 100 is provided with a sensor 110. For example, the sensing member 110 may be a reed switch. The start-up pressure protection valve 200 includes: a valve body 210, a magnetic member 220, and a valve spool 230. The valve body 210 is movably provided on the cover body 100 between a first position shown in fig. 2 and a second position shown in fig. 3, and for example, the valve body 210 is movable in the axial direction (i.e., up-down direction) of the cover body 100.

The valve body 210 has a steam passage 211, and a first steam inlet 212, a second steam inlet 213 and a steam outlet 214 respectively communicated with the steam passage 211, wherein the first steam inlet 212 is located between the second steam inlet 213 and the steam outlet 214, that is, the first steam inlet 212 is located above the second steam inlet 213 and below the steam outlet 214. The magnetic member 220 is provided on the valve body 210, and the magnetic member 220 may be a magnet, for example. The valve member 230 is movably disposed in the steam passage 211 between an initial position shown in fig. 5 and a relief position shown in fig. 6, the valve member 230 blocks the second steam inlet 213 in the initial position, and the valve member 230 opens the second steam inlet 213 in the relief position.

Wherein, when the valve body 210 is at the first position, the first steam inlet 212 is communicated with the cooking cavity 101 and the valve core 230 is at the initial position; when the pressure of the cooking cavity 101 reaches the pressure, the valve body 210 moves to the second position, the cover body 100 blocks the first steam inlet 212, and the magnetic element 220 communicates with the sensing element 110; when the pressure in the cooking cavity 101 reaches the relief pressure, the valve element 230 moves to the relief position to communicate the second steam inlet 213 with the steam outlet 214, and the relief pressure is greater than the pressure.

For example, the cover 100 is provided with a valve seat 120, the valve body 210 is movably disposed in the valve seat 120, and a float gasket 250 is sleeved on a lower end of the valve body 210. When the valve body 210 is located at the first position, the valve core 230 is located at the initial position, the valve core 230 blocks the second steam inlet 213, the first steam inlet 212 is communicated with the cooking cavity 101, and at this time, cold air in the cooking cavity 101 enters the steam channel 211 through the first steam inlet 212 and is discharged through the steam outlet 214; when the pressure of the cooking cavity 101 reaches the pressure-rise pressure, the valve body 210 moves to the second position, the float gasket 250 cooperates with the valve seat 120 to block the first steam inlet 212, the passage between the first steam inlet 212 and the cooking cavity 101 fails, and the magnetic member 220 moves along with the valve body 210 to communicate with the sensing member 110; when the pressure in the cooking cavity 101 continues to increase and reaches the pressure relief pressure, the valve core 230 moves to the pressure relief position, and at this time, the second steam inlet 213 is opened, thereby achieving instant pressure relief.

According to the utility model discloses cooking utensil's pot cover subassembly 10 has integrateed pressure release function and zero pressure and has detected the function, need not set up pressure relief device and zero pressure detection device on lid 100 respectively for the structure of lid 100 becomes few, the structure is fairly simple, and the cost is also lower.

According to some embodiments of the present invention, as shown in fig. 2 and 3, the valve body 210 is provided with a receiving groove 215, and the magnetic member 220 is installed in the receiving groove 215, so that the magnetic member 220 can be relatively securely installed on the valve body 210. For example, the magnetic member 220 can be pressed in the accommodating groove 215 by riveting the valve body 210, so that the magnetic member 220 can move along with the valve body 210 without falling off, the magnetic member 220 and the sensing member 110 are ensured to communicate, the reed switch senses the closing of the magnetic field, and the output signal informs that the pressure is in the cooking cavity 101, thereby prompting that the cover cannot be opened.

In some embodiments of the present invention, as shown in fig. 2, one end of the steam channel 211 penetrates through the bottom wall of the accommodating groove 215, a sealing gasket 216 is disposed in the accommodating groove 215, and the sealing gasket 216 blocks the one end of the steam channel 211. For example, the housing groove 215 is separated from the upper end of the steam channel 211 by a gasket 216, and the gasket 216 makes the housing groove 215 not communicate with the upper end of the steam channel 211. Thus, one end of the steam channel 211 penetrating through the bottom wall of the accommodating groove 215 can be kept in a sealed state, the influence of steam on the magnetic member 220 is avoided, and the structure is simple.

In the related art, the pressure relief device realizes sealing and pressure relief through the change of the skirt edge state of the pressure relief sealing ring. Specifically, when the pressure in the cooker is normal, the skirt edge of the pressure relief sealing ring is sealed with the side wall of the sinking platform on the cover plate; when the pressure in the cooker is abnormal (namely the pressure relief pressure is reached), the pressure in the cooker turns over the skirt edge of the pressure relief sealing ring, and the instant pressure relief is realized. Therefore, the pressure relief pressure value is easily influenced by the hardness of the silicon rubber piece, namely the pressure relief sealing ring, and the hardness of the pressure relief sealing ring is not easy to control, so that the pressure relief pressure value is unstable.

To this end, in some embodiments of the present invention, as shown in fig. 4-6, the valve core 230 includes: valve plate 231, sealing ring 232 and elastic member 233. Specifically, the sealing ring 232 is fitted over the valve plate 231 to open and close the second steam inlet 213, for example, the sealing ring 232 may be an O-ring. One end (e.g., upper end) of the elastic member 233 abuts against the bottom of the receiving groove 215, the other end (e.g., lower end) of the elastic member 233 is connected to the valve plate 231, and the elastic member 233 has a force to normally drive the valve plate 231 toward the second steam inlet 213. For example, the elastic member 233 may be a spring, the upper end surface of the valve plate 231 is provided with a spring positioning column 236, and the lower end of the spring is sleeved on the spring positioning column 236, so as to facilitate assembling the spring on the valve plate 231. The force that normally drives the valve plate 231 toward the second steam inlet 213 at this time is a spring force.

As shown in fig. 5, when the valve core 230 is located at the initial position, the spring drives the valve plate 231 toward the second steam inlet 213, and the sealing ring 232 closes the second steam inlet 213; as shown in fig. 6, when the valve core 230 is in the pressure relief position, the pressure in the cooking cavity 101 overcomes the spring force to lift the valve plate 231 upward, so as to lift the sealing ring 232 away from the second steam inlet 213, and the sealing ring 232 opens the second steam inlet 213. Therefore, the pressure can be controlled through the spring force of the spring, and the pressure relief pressure value is relatively stable.

In some embodiments of the present invention, as shown in fig. 5, a positioning column 234 is disposed at one end (e.g., lower end) of the valve plate 231 near the second steam inlet 213, and the positioning column 234 is fitted in the second steam inlet 213. One end (e.g., the upper end) of the valve plate 231 near the steam outlet 214 is provided with a spring positioning post 236, and at least a portion of the elastic member 233 is sleeved on the outer periphery of the spring positioning post 236.

For example, the positioning pillar 234 may be designed to have an elliptical cylindrical structure, that is, the cross-sectional shape of the positioning pillar 234 may be elliptical, so as to facilitate the entry of the second steam inlet 213 and prevent blockage. Thereby, the valve sheet 231 can be smoothly moved along the axial direction (e.g., up and down direction) of the steam channel 211, thereby improving the reliability of the structure.

In some embodiments of the present invention, as shown in fig. 5, the inner peripheral wall of the valve body 210 is provided with a sealing step, the sealing ring 232 is supported on the sealing step, and when the pressure of the cooking cavity 101 reaches the pressure relief pressure, the sealing ring 232 is separated from the sealing step. Thus, the sealing ring 232 is easily separated by the sealing step.

According to some embodiments of the present invention, as shown in fig. 5 and fig. 6, the valve body 210 is sleeved with the snap spring 240 and the snap spring 240 extends into the steam channel 211, the outer peripheral surface of the valve core 230 is provided with the stopping platform 235, the snap spring 240 stops the upper edge of the stopping platform 235 when the valve core 230 is at the initial position, and the snap spring 240 stops the lower edge of the stopping platform 235 when the valve core 230 is at the pressure release position. For example, as shown in fig. 5, when the valve core 230 is located at the initial position, the snap spring 240 stops the upper edge of the stop table 235, and the sealing ring 232 seals the second steam inlet 213; as shown in fig. 6, when the pressure in the cooking cavity 101 reaches the relief pressure, the valve core 230 is located at the relief position, and since the snap spring 240 stops the lower edge of the stop table 235 at this time, that is, the valve core 230 is clamped on the snap spring 240, the sealing ring 232 loses the seal with the second steam inlet 213, so that the pressure is relieved instantaneously. Therefore, when the pressure in the cooking cavity 101 is abnormal, the pressure can be released in time, and the purpose of safety protection is achieved.

In some embodiments of the present invention, as shown in fig. 5, the magnetic member 220 is disposed at the upper end of the valve body 210, the steam outlet 214 is disposed below the magnetic member 220, and the clamp spring 240 is disposed below the steam outlet 214. Thus, the structure is simple and reliable.

In some embodiments of the present invention, as shown in fig. 5, the clamp spring 240 is disposed on the first steam inlet 212, and the clamp spring 240 extends into the steam channel 211 through the first steam inlet 212, that is, both ends of the clamp spring 240 are fitted in the first steam inlet 212 and extend into the steam channel 211. Thus, the structure is simple and compact, and the installation is convenient. Wherein, the outer peripheral surface of the valve body 210 can be provided with a clamping groove 241, and the clamp spring 240 is matched in the clamping groove 241, so that the structure is firmer.

According to some embodiments of the present invention, as shown in fig. 4, the valve body 210 is provided with a steam guiding portion 217, the end surface of the steam guiding portion 217 is provided with a steam guiding groove 218, and the steam guiding groove 218 communicates with the second steam inlet 213 and penetrates through the outer peripheral surface of the steam guiding portion 217. For example, the steam guide groove 218 is designed as a cross-shaped groove which penetrates the outer circumferential surface of the steam guide part 217, so that air can be introduced into both the end surface and the side surface of the steam guide part 217, thereby preventing the steam from being blocked by food.

According to some embodiments of the present invention, the pot lid assembly 10 of the cooking appliance further comprises: and the steam exhaust valve is arranged on the cover body 100 and is provided with a steam exhaust channel, the steam exhaust channel is communicated with the cooking cavity 101 and the external space when the pressure of the cooking cavity 101 reaches a pressure limiting pressure, and the pressure limiting pressure is greater than the pressure starting pressure and less than the pressure relief pressure. Thus, when the pressure in the cooking cavity 101 reaches the pressure limiting pressure, the steam exhaust function can be realized by using the steam exhaust valve.

Other constructions and operations of the lid assembly 10 of the cooking appliance according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

A cooking appliance 1 according to an embodiment of the second aspect of the present invention is described below with reference to the drawings.

As shown in fig. 1, a cooking appliance 1 according to an embodiment of the present invention includes: the pot lid assembly 10 and the pot body 20 of the cooking appliance according to the embodiment of the first aspect of the present invention. Wherein, the cover body 100 is covered on the pot body 20, and the cooking cavity 101 is defined by the cover body 100 and the pot body 20.

According to the utility model discloses cooking utensil 1, utilize as above cooking utensil's pot cover subassembly 10, the structure is few, simple structure and with low costs.

Other constructions and operations of the cooking appliance 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

A pressure-starting protection valve 200 for a cooking appliance according to an embodiment of the third aspect of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 4 to 6, a pressure-rising protection valve 200 for a cooking appliance according to an embodiment of the present invention includes: a valve body 210, a magnetic member 220, and a valve spool 230.

Specifically, the valve body 210 has a receiving groove 215, a steam passage 211, and a first steam inlet 212, a second steam inlet 213, and a steam outlet 214 that are respectively communicated with the steam passage 211, the first steam inlet 212 is located between the second steam inlet 213 and the steam outlet 214, the valve body 210 has a steam guide portion 217, an end surface of the steam guide portion 217 has a steam guide groove 218, and the steam guide groove 218 communicates with the second steam inlet 213 and penetrates an outer circumferential surface of the steam guide portion 217. The magnetic member 220 is mounted in the receiving groove 215, the steam discharge port 214 is provided below the magnetic member 220, and the second steam inlet port 213 is provided at the lower end of the valve body 210. One end of the steam passage 211 penetrates the bottom wall of the housing groove 215, a gasket 216 is provided in the housing groove 215, and the gasket 216 seals one end of the steam passage 211. A valve spool 230 is movably disposed within the steam passage 211 between an initial position and a pressure relief position.

Wherein, the spool 230 includes: valve plate 231, sealing ring 232 and elastic member 233. Specifically, the sealing ring 232 is fitted over the valve plate 231. One end of the elastic member 233 is sleeved on the valve plate 231 and the other end abuts against the bottom of the accommodating groove 215, the elastic member 233 has a force that drives the valve plate 231 toward the second steam inlet 213, the sealing ring 232 blocks the second steam inlet 213 when the valve core 230 is at the initial position, and the sealing ring 232 opens the second steam inlet 213 when the valve core 230 is at the pressure relief position.

For example, the cover 100 is provided with a valve seat 120, the valve body 210 is movably disposed in the valve seat 120, and a float gasket 250 is sleeved on a lower end of the valve body 210. Before the pressure rise, the cold air in the cooking appliance 1 is discharged through the first air inlet 212 and the steam channel 211; after the pressure is raised, the valve body 210 is lifted, the float gasket 250 cooperates with the valve seat 120 to block the first steam inlet 212, and the magnetic member 220 communicates with the sensing member 110 on the cooking appliance 1. As shown in fig. 5, when the valve core 230 is located at the initial position, the elastic member 233 drives the valve plate 231 toward the second steam inlet 213, the clamp spring 240 stops the upper edge of the stop table 235, and the sealing ring 232 blocks the second steam inlet 213; as shown in fig. 6, when the pressure in the cooking appliance 10 reaches the relief pressure, the pressure overcomes the elastic force of the elastic member 233 to lift the valve plate 231 upward to lift the sealing ring 232 away from the second steam inlet 213, and the valve core 230 reaches the relief position, because the snap spring 240 stops the lower edge of the stopping table 235 at this time, that is, the valve core 230 is clamped on the snap spring 240, the sealing ring 232 loses the seal of the second steam inlet 213, thereby achieving instant relief and achieving safety protection.

According to some embodiments of the present invention, as shown in fig. 5, the clamp spring 240 is disposed on the first steam inlet 212, and the clamp spring 240 extends into the steam channel 211 through the first steam inlet 212. Thus, the structure is simple and compact, and the installation is convenient.

According to the utility model discloses a rise pressure protection valve 200 for cooking utensil, integrated pressure release function and zero pressure and detected the function to the cost is lower.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, "first feature" and "second feature" may include one or more of the features, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or the first and second features being in contact not directly but via another feature therebetween. The first feature being "on," "over" and "above" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

It is to be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. A lid assembly for a cooking appliance, the cooking appliance having a cooking cavity, the lid assembly comprising:

the cover body is provided with a sensing piece;

a pressure-raising protection valve, said pressure-raising protection valve comprising:

the valve body is movably arranged on the cover body between a first position and a second position and is provided with a steam channel, a first steam inlet, a second steam inlet and a steam outlet which are respectively communicated with the steam channel, and the first steam inlet is positioned between the second steam inlet and the steam outlet;

the magnetic part is arranged on the valve body;

a valve core movably arranged in the steam channel between an initial position and a pressure relief position, wherein the valve core blocks the second steam inlet when in the initial position and opens the second steam inlet when in the pressure relief position, wherein,

when the valve body is at the first position, the first steam inlet is communicated with the cooking cavity, and the valve core is at the initial position;

when the pressure of the cooking cavity reaches the pressure rise pressure, the valve body moves to the second position, the cover body blocks the first steam inlet, and the magnetic part is communicated with the induction part;

when the pressure of the cooking cavity reaches the pressure relief pressure, the valve core moves to the pressure relief position to enable the second steam inlet to be communicated with the steam outlet, and the pressure relief pressure is greater than the pressure starting pressure.

2. The pot cover assembly of a cooking appliance according to claim 1, wherein the valve body is provided with a receiving groove in which the magnetic member is mounted.

3. The lid assembly of claim 2, wherein one end of the steam channel extends through a bottom wall of the receiving groove, and a gasket is disposed in the receiving groove and seals the one end of the steam channel.

4. The lid assembly of a cooking appliance of claim 2, wherein the valve cartridge comprises:

a valve plate;

the sealing ring is sleeved on the valve plate to open and close the second steam inlet;

and one end of the elastic piece is abutted against the bottom of the accommodating groove, the other end of the elastic piece is connected with the valve plate, and the elastic piece has a force which normally drives the valve plate to the second steam inlet.

5. The lid assembly of claim 4, wherein a positioning post is disposed at an end of the valve plate close to the second steam inlet, and the positioning post is engaged with the second steam inlet; one end of the valve plate close to the steam exhaust port is provided with a spring positioning column, and at least one part of the elastic piece is sleeved on the periphery of the spring positioning column.

6. The lid assembly of claim 4, wherein the inner peripheral wall of the valve body is provided with a sealing step, the sealing ring abuts against the sealing step, and the sealing ring is separated from the sealing step when the pressure in the cooking cavity reaches the pressure relief pressure.

7. The pot cover assembly of the cooking appliance according to claim 1, wherein a snap spring is sleeved on the valve body and extends into the steam channel, a stopping table is arranged on the outer peripheral surface of the valve core, the snap spring stops the upper edge of the stopping table when the valve core is in the initial position, and the snap spring stops the lower edge of the stopping table when the valve core is in the pressure relief position.

8. The lid assembly of a cooking appliance of claim 7, wherein the magnetic member is disposed at an upper end of the valve body, the steam outlet is disposed below the magnetic member, and the clamp spring is disposed below the steam outlet.

9. The lid assembly of claim 7, wherein the snap spring is disposed on the first steam inlet, the snap spring extending into the steam channel through the first steam inlet.

10. The lid assembly of cooking utensil of claim 1 wherein the valve body is provided with a steam guide portion, the end surface of the steam guide portion having a steam guide groove, the steam guide groove communicating with the second steam inlet and penetrating the outer circumferential surface of the steam guide portion.

11. The pot cover assembly of the cooking appliance of any one of claims 1-10, further comprising:

the steam exhaust valve is arranged on the cover body and is provided with a steam exhaust channel, the steam exhaust channel is communicated with the cooking cavity and the external space when the pressure of the cooking cavity reaches a pressure limiting pressure, and the pressure limiting pressure is greater than the pressure starting pressure and less than the pressure relief pressure.

12. A cooking appliance, comprising:

the pot cover assembly of the cooking appliance of any one of claims 1-11;

the cover body covers the pot body, and the cooking cavity is defined by the cover body and the pot body together.

13. A pressure-activated protection valve for a cooking appliance, comprising:

the upper end of the valve body is provided with an accommodating groove, a steam channel, a first steam inlet, a second steam inlet and a steam outlet which are respectively communicated with the steam channel, and the first steam inlet is positioned between the second steam inlet and the steam outlet;

the magnetic part is arranged in the accommodating groove, the steam outlet is arranged below the magnetic part, and the second steam inlet is arranged at the lower end of the valve body;

a valve element movably disposed in the steam passage between an initial position and a pressure relief position,

the valve core includes:

a valve plate;

the sealing ring is sleeved on the valve plate;

the elastic piece, a pot head of elastic piece is established on the valve block and other end butt in the bottom of holding tank, the elastic piece has will the valve block often drives to the power of second steam inlet, the case is in during initial position the sealing washer shutoff second steam inlet, the case is in during the pressure release position the sealing washer is opened the second steam inlet.

14. The pressure-rising protection valve for the cooking utensil as claimed in claim 13, wherein a snap spring is sleeved on the valve body, the snap spring is arranged on the first steam inlet, and the snap spring extends into the steam channel through the first steam inlet.

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