CN213017940U - Pressure stabilizing valve and gas stove - Google Patents

Abstract

The utility model discloses a pressure stabilizing valve and a gas cooker, wherein the pressure stabilizing valve comprises a first shell, a second shell and a pressure regulating component; the second shell is connected with the first shell; the pressure regulating assembly comprises a diaphragm and a pressure regulating rod connected with the diaphragm, the diaphragm is connected between the first shell and the second shell and correspondingly forms a first cavity and a second cavity in a sealing connection mode with the first shell and the second shell, at least two air outlet channels communicated with the second cavity are arranged on the second shell, the end face of the air outlet end of the second shell is a flange connecting surface, an air inlet channel communicated with the second cavity is arranged on the second shell, the diaphragm can drive the pressure regulating rod to move up and down, and the lower end of the pressure regulating rod can be matched with the air outlet of the air inlet channel to regulate the air flow. The gas cooking utensils include the surge damping valve, the plug valve of being connected with the surge damping valve and the furnace end of being connected with the plug valve, plug valve and furnace end all are equipped with at least two and corresponding with the quantity that sets up of air outlet channel. The utility model discloses a surge damping valve can make things convenient for the assembled joint of gas cooking utensils.

Description

Pressure stabilizing valve and gas stove

Technical Field

The utility model relates to a gas valve utensil field, in particular to surge damping valve and gas cooking utensils.

Background

In the existing multi-burner gas cooker, a single pressure stabilizing valve is generally adopted at the air inlet end of the multi-burner gas cooker, the pressure stabilizing valve is respectively connected with a plurality of plug valves through shunt tubes, each plug valve is independently connected with one burner, during use, gas is input from the single pressure stabilizing valve, is output after the pressure of the gas is stabilized and regulated through the pressure stabilizing valve, is respectively conveyed to the plug valves through the shunt tubes, and is controlled by the plug valves to convey the gas to the burners, so that the gas supply of the multi-burner gas cooker is realized. The structure is complex, the assembly and the connection are troublesome, and the whole volume of the cooker is large, so that the cooker is inconvenient to place and use.

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 pressure stabilizing valve, it can directly be connected with a plurality of plug valves, simple structure makes things convenient for the assembled connection of gas cooking utensils.

The utility model discloses still provide a gas cooking utensils of having this surge damping valve.

According to the utility model discloses a surge damping valve of first aspect embodiment, it includes first casing, second casing and pressure regulating subassembly; the second shell is connected with the first shell; the pressure regulating subassembly include the diaphragm and with the pressure regulating pole that the diaphragm is connected, the diaphragm connect in first casing with between the second casing, the diaphragm with first casing sealing connection forms first cavity, the diaphragm with second casing sealing connection forms the second cavity, be equipped with on the second casing all with two at least outlet channel of second cavity intercommunication, the terminal surface that outlet channel outlet end was given vent to anger is flange joint face, be equipped with on the second casing with the inlet channel of second cavity intercommunication, the diaphragm can be deformed and extend in order to drive the pressure regulating pole reciprocates, the lower extreme of pressure regulating pole can with inlet channel's gas outlet cooperation regulation air flow.

According to the utility model discloses surge damping valve, it has following beneficial effect at least: during the use, single surge damping valve is connected with the plug valve through the flange joint face of outlet channel, and the gas gets into from inlet channel, thereby stabilizes output pressure through the effect control air input of diaphragm and pressure regulating pole, through outlet channel and the flange joint face that sets up two at least, it can directly be connected with a plurality of plug valves, and its simple structure makes things convenient for the equipment connection of gas cooking utensils, can reduce the manufacturing cost of gas cooking utensils.

According to some embodiments of the utility model, the flange joint face is inclined to the axis setting of air outlet channel. Through setting up flange joint face slope in outlet channel's axis, can make things convenient for surge damping valve and plug valve to be inclination and be connected, along the ascending occupation space size of outlet channel's axis direction during the reduction connection, be convenient for reduce gas cooking utensils's volume.

According to some embodiments of the utility model, inlet channel's gas outlet sets up and is located the middle part of second cavity, outlet channel is provided with two and is located respectively the left and right sides of second casing. Through setting up two air outlet channel, can be applicable to the gas cooking utensils of two furnace ends, air inlet channel's gas outlet sets up and is located the middle part of second cavity to and two air outlet channel are located the left and right sides of second casing respectively, can make things convenient for evenly giving vent to anger of gas, and make things convenient for two air outlet channel to correspond and be connected with two plug valves, make things convenient for the connection of plug valve to arrange.

According to some embodiments of the utility model, inlet channel's gas outlet department can be dismantled and be connected with the go-between, the lower extreme of pressure regulating pole is worn to establish the go-between and is equipped with and is located regulating plug portion among the inlet channel, the pressure regulating pole can be relative the second casing reciprocates, the upper end of regulating plug position be coniform structure and can the butt in the go-between. When gas enters, the gas enters the second cavity through the connecting ring of the gas inlet channel, and when the gas inlet pressure is higher and the gas inlet amount is larger, the diaphragm extends upwards by the gas with higher pressure and gas inlet amount, the pressure regulating rod is driven to move upwards, and the regulating plug part moves upwards, so that the gas inlet area of the gas outlet of the gas inlet channel is reduced, the gas inlet amount is reduced, and the pressure stabilization is realized; when gas inlet pressure is too big, the air input is too big, the diaphragm upwards extends the distance bigger, drives pressure regulating pole rebound and makes adjusting plug portion butt on the go-between, closes the admit air in the second cavity, opens once more after gas pressure reduces in the second cavity, realizes the steady voltage, its simple structure, and realizes easily that pressure regulating pole can adjust the purpose of air flow with inlet channel's gas outlet cooperation.

According to some embodiments of the utility model, be equipped with the elastic component in the first cavity, the both ends of elastic component respectively with the pressure regulating subassembly with first casing is connected. Through setting up the elastic component, when the diaphragm upwards extends, compression elastic component, elastic component apply elasticity on the diaphragm, can make the pressure regulating subassembly intake pressure of gas well balanced, and can make things convenient for the reseing of pressure regulating subassembly.

According to some embodiments of the utility model, there is the regulating part through threaded connection on the first casing, the lower extreme of regulating part with the upper end of elastic component is connected, the lower extreme butt of elastic component in the pressure regulating subassembly. Through setting up the regulating part for the elastic component acts on that the elasticity of pressure regulating subassembly is adjustable, can be convenient right the utility model discloses carry out the suitability and adjust, improve the utility model discloses a reliability.

According to some embodiments of the utility model, the pressure regulating subassembly still includes the stabilizer blade, wear to establish the upper end of pressure regulating pole the diaphragm and with stabilizer blade fixed connection, the stabilizer blade with the up end laminating of diaphragm, the lower extreme butt of elastic component in the stabilizer blade, be equipped with on the pressure regulating pole along the butt boss of radial protruding formation, butt boss butt in the lower terminal surface of diaphragm. Through setting up voltage stabilizing piece and butt boss, both are located the upper and lower terminal surface of diaphragm respectively and press from both sides the diaphragm and establish, can improve the connection stability of pressure regulating rod to the voltage stabilizing piece can avoid the diaphragm to take place the shake under the effect of gas pressure, thereby avoids the pressure regulating rod to produce the swing, improves the utility model discloses a stability and reliability.

According to some embodiments of the utility model, be equipped with the spacing post by the protruding formation of lower to upper on the second casing, spacing post is used for the restriction the diaphragm degree of extending downwards. Through setting up spacing post, make the diaphragm excessively extend downwards when can avoiding the regulating part to adjust, influence the normal use of pressure regulating subassembly, improve the utility model discloses a reliability.

According to some embodiments of the present invention, the first housing is provided with an air vent communicating with the first cavity, and the first cavity passes through the air vent and the outside air. Make first cavity and outside air intercommunication through setting up the air vent, can make things convenient for the upper and lower extension of diaphragm.

According to the utility model discloses a second aspect embodiment gas cooking utensils, it includes plug valve, furnace end and according to the utility model discloses the surge damping valve of above-mentioned first aspect embodiment, the plug valve with the furnace end all is equipped with two at least, just gas outlet channel set up quantity with the plug valve set up quantity all with the furnace end set up quantity corresponding, the inlet end of plug valve with surge damping valve gas outlet channel one-to-one connects through the flange structure, the furnace end with the plug valve one-to-one is connected.

According to the utility model discloses gas cooking utensils, it has following beneficial effect at least: through adopting foretell surge damping valve, a plurality of plug valves can be directly be connected with a plurality of outlet channel one-to-one of surge damping valve, and every plug valve is connected in order to realize air feed control with every furnace end, and its connection is simple, and the be convenient for gas cooking utensils's assembled joint can reduce gas cooking utensils's whole volume, and can save manufacturing cost, the be convenient for production and application.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a pressure maintaining valve according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the pressure maintaining valve of FIG. 1;

FIG. 3 is one of the schematic cross-sectional structural views of the pressure maintaining valve of FIG. 1;

FIG. 4 is a second schematic cross-sectional view of the regulator valve of FIG. 1;

FIG. 5 is a schematic top view of the second housing of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the second housing of FIG. 5;

fig. 7 is a schematic view of a partial structure of a gas cooker according to an embodiment of the present invention.

Reference numerals:

the first casing 100, the first cavity 110, the adjusting piece 120 and the vent 130;

the second housing 200, the second cavity 210, the air outlet channel 220, the flange joint surface 221, the air inlet channel 230, the connection ring 231, and the spacing column 240;

the pressure regulating assembly 300, a membrane 310, a pressure regulating rod 320, a regulating plug part 321, an abutting boss 322 and a pressure stabilizing sheet 330;

elastic member 400, plug valve 500, furnace end 600.

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.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, left, right, etc., referred to the orientation description is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number.

If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 2 and 5, a pressure maintaining valve includes a first housing 100, a second housing 200, and a pressure regulating assembly 300; the second housing 200 is connected to the first housing 100; pressure regulating subassembly 300 includes diaphragm 310 and the pressure regulating pole 320 of being connected with diaphragm 310, diaphragm 310 is connected between first casing 100 and second casing 200, diaphragm 310 forms first cavity 110 with first casing 100 sealing connection, diaphragm 310 forms second cavity 210 with second casing 200 sealing connection, be equipped with two at least outlet channel 220 that all communicate with second cavity 210 on the second casing 200, outlet channel 220 gives vent to anger the terminal surface of end and is flange joint face 221, be equipped with the inlet channel 230 with second cavity 210 intercommunication on the second casing 200, diaphragm 310 can deform the extension and reciprocate in order to drive pressure regulating pole 320, the lower extreme of pressure regulating pole 320 can adjust the air output with the gas outlet cooperation of inlet channel 230.

During the use, single pressure stabilizing valve is connected with plug valve 500 through the flange joint face 221 of outlet channel 220, and the gas gets into from inlet channel 230, thereby stabilizes output pressure through the effect control air input of diaphragm 310 and pressure regulating pole 320, through outlet channel 220 and the flange joint face 221 who sets up at least two, it can directly be connected with a plurality of plug valves 500, its simple structure makes things convenient for the equipment connection of gas cooking utensils, can reduce the manufacturing cost of gas cooking utensils.

In the present embodiment, as shown in fig. 2, 3 and 4, the second housing 200 and the first housing 100 are connected by bolts, and the diaphragm 310 is interposed between the second housing 200 and the first housing 100. In practical applications, the connection manner, the specific structure, and the like between the first casing 100 and the second casing 200 may also be changed according to practical application requirements, and those skilled in the art can understand that the number and the distribution of the pressure regulating rods 320 and the diaphragms 310 may also be set according to practical application requirements, and therefore, detailed descriptions are omitted here, and detailed descriptions are provided below.

In some embodiments, flanged surface 221 is disposed obliquely to an axis of outlet channel 220. In this embodiment, as shown in fig. 5 and 6, the flange connection surface 221 is inclined to the axis of the gas outlet channel 220, so that the pressure stabilizing valve and the plug valve 500 can be conveniently connected at an inclined angle, the size of the occupied space in the axis direction of the gas outlet channel 220 during connection is reduced, and the volume of the gas cooker is conveniently reduced. In practical applications, the inclination angle and the inclination direction of the flange connection surface 221 can be set according to practical needs, and are not limited herein.

In some embodiments, the air outlet of the air inlet channel 230 is disposed upward and located in the middle of the second cavity 210, and the air outlet channels 220 are disposed in two and located at the left and right sides of the second housing 200, respectively. In this embodiment, as shown in fig. 3, 5 and 6, the air outlet channel 220 is provided with two and is located the both sides of second casing 200 respectively, can be applicable to the gas cooking utensils of two furnace ends 600, the gas outlet of air inlet channel 230 sets up and is located the middle part of second cavity 210 up, two air outlet channel 220 are located the left and right sides of second casing 200 respectively, can make things convenient for the even of gas to give vent to anger, and make things convenient for two air outlet channel 220 to correspond and be connected with two plug valves 500, make things convenient for the connection of plug valves 500 to arrange. In practical application, four air outlet channels 220 may be provided according to practical application requirements, and the distribution mode may be set according to practical application requirements, which is not limited herein.

In some embodiments, a connection ring 231 is detachably connected to the air outlet of the air inlet channel 230, the lower end of the pressure regulating rod 320 penetrates through the connection ring 231 and is provided with a regulating plug portion 321 located in the air inlet channel 230, the pressure regulating rod 320 can move up and down relative to the second housing 200, and the upper end of the regulating plug portion 321 is in a conical structure and can abut against the connection ring 231.

In the present embodiment, as shown in fig. 3 and 4, the connection ring 231 is connected to the air outlet of the air inlet channel 230 through interference fit, when gas enters, the gas enters the second cavity 210 through the connection ring 231 of the air inlet channel 230, when the gas inlet pressure is relatively high and the air inlet amount is relatively large, the pressure difference exists between the first cavity 110 and the second cavity 210 due to the relatively high pressure and the air inlet amount, so that the diaphragm 310 extends upward, the pressure regulating rod 320 is driven to move upward, the regulating plug portion 321 moves upward, and the regulating plug portion 321 is matched with the connection ring 231, so that the air inlet area of the air outlet of the air inlet channel 230 is reduced, the air inlet amount is reduced, and pressure stabilization is realized; when the gas inlet pressure is too large and the gas inlet amount is too large, the upward extension distance of the membrane 310 is larger, the pressure regulating rod 320 is driven to move upwards to enable the regulating plug portion 321 to abut against the connecting ring 231, the gas inlet in the second cavity 210 is closed, after the gas pressure in the second cavity 210 is reduced, the membrane 310 resets to enable the pressure regulating rod 320 to move downwards, the regulating plug portion 321 is separated from the connecting ring 231, the gas outlet of the gas inlet channel 230 is opened again, the gas continues to enter, the pressure regulation is realized, the structure is simple, and the purpose that the pressure regulating rod 320 can be matched with the gas outlet of the gas inlet channel 230 to regulate the ventilation amount is easily realized.

In practical application, the connecting ring 231 can be detachably connected to the air outlet of the air inlet channel 230 in a clamping or threaded manner, so that the pressure regulating rod 320 can be matched with the air outlet of the air inlet channel 230 to regulate the air flow, and an elastic sheet capable of shielding the air outlet can be arranged at the air outlet of the air inlet channel 230; of course, the specific structure and connection mode of the pressure adjusting rod 320 can be set according to the actual use requirement, and are not limited herein.

In some embodiments, an elastic member 400 is disposed in the first cavity 110, and both ends of the elastic member 400 are connected to the pressure regulating assembly 300 and the first housing 100, respectively. In this embodiment, as shown in fig. 2, 3 and 4, the elastic member 400 is a spring, and by providing the elastic member 400, when the diaphragm 310 extends upwards, the elastic member 400 is compressed, and the elastic member 400 exerts an elastic force on the diaphragm 310, so that the pressure regulating assembly 300 can better balance the intake pressure of the gas, and the purpose of pressure stabilization is achieved, and the elastic member 400 can also facilitate the resetting of the pressure regulating assembly 300. In practical applications, the specific connection mode of the elastic member 400 is not limited herein as long as it can act on the pressure regulating assembly 300.

In some embodiments, the first housing 100 is screwed with the adjusting member 120, the lower end of the adjusting member 120 is connected with the upper end of the elastic member 400, and the lower end of the elastic member 400 abuts against the pressure regulating assembly 300. In this embodiment, as shown in fig. 2, fig. 3 and fig. 4, through setting up regulating part 120 for the elasticity that elastic component 400 acted on pressure regulating assembly 300 is adjustable, can be convenient right the utility model discloses carry out the suitability and adjust, improve the utility model discloses a reliability. In practical applications, the specific structure of the adjusting member 120 may be set according to practical needs, and is not limited herein.

In some embodiments, the pressure regulating assembly 300 further includes a pressure stabilizing plate 330, the upper end of the pressure regulating rod 320 penetrates through the membrane 310 and is fixedly connected to the pressure stabilizing plate 330, the pressure stabilizing plate 330 is attached to the upper end surface of the membrane 310, the lower end of the elastic member 400 abuts against the pressure stabilizing plate 330, an abutting boss 322 formed along a radial direction is disposed on the pressure regulating rod 320, and the abutting boss 322 abuts against the lower end surface of the membrane 310. In this embodiment, as shown in fig. 2, fig. 3 and fig. 4, through setting up pressure stabilizing piece 330 and butt boss 322, both are located the upper and lower terminal surface of diaphragm 310 respectively and press from both sides diaphragm 310 and establish, can improve the connection stability of pressure regulating pole 320 to pressure stabilizing piece 330 can avoid diaphragm 310 to take place the shake under the effect of gas pressure, thereby avoids pressure regulating pole 320 to produce the swing, improves the utility model discloses a stability and reliability. In practical application, the pressure regulating rod 320 may be fixedly connected to the pressure stabilizing piece 330 by means of screw connection or interference fit, and the specific structures of the pressure stabilizing piece 330 and the abutting boss 322 may be changed according to practical needs, without limitation.

In some embodiments, the second housing 200 is provided with a limiting column 240 formed by protruding from the bottom to the top, and the limiting column 240 is used for limiting the downward extension degree of the diaphragm 310. In this embodiment, as shown in fig. 2, 5 and 6, the two limiting posts 240 are provided, and by providing the limiting posts 240, the diaphragm 310 can be prevented from extending downward excessively during adjustment of the adjusting member 120, which affects normal use of the pressure regulating assembly 300 and improves reliability of the present invention. In practical applications, the number and specific structure of the limiting pillars 240 can be changed according to practical needs, such as prismatic shape and cylindrical shape, without limitation.

In some embodiments, the first casing 100 is provided with a vent 130 communicating with the first cavity 110, and the first cavity 110 communicates with the outside air through the vent 130. In this embodiment, as shown in fig. 1, 2 and 4, the first casing 100 is provided with the vent 130, the first cavity 110 is communicated with the outside air through the vent 130, and when the membrane 310 is deformed by extending up and down, the air in the first cavity 110 can be prevented from being compressed or increased, which facilitates the extending up and down of the membrane 310. In practical applications, the specific structure of the vent 130 may be changed according to practical needs, and is not limited herein.

According to the utility model discloses a gas cooking utensils of second aspect embodiment, it includes plug valve 500, furnace end 600 and according to the utility model discloses the surge damping valve of above-mentioned first aspect embodiment, plug valve 500 and furnace end 600 all are equipped with two at least, and the quantity that sets up of outlet channel 220 and plug valve 500 all is corresponding with the quantity that sets up of furnace end 600, and plug valve 500's inlet end is connected through the flange structure with the outlet channel 220 one-to-one of surge damping valve, and furnace end 600 is connected with plug valve 500 one-to-one.

According to the utility model discloses gas cooking utensils, it is through adopting foretell surge damping valve, and a plurality of plug valves 500 can be directly be connected with a plurality of gas outlet channel 220 one-to-one of surge damping valve, and every plug valve 500 is connected with every furnace end 600 in order to realize air feed control, and it is simple to connect, and the gas cooking utensils's of being convenient for assembled joint can reduce gas cooking utensils's whole volume, and can save manufacturing cost, the production and application of being convenient for.

In this embodiment, as shown in fig. 7, two furnace ends 600, two plug valves 500 and two air outlet channels 220 are provided, the two furnace ends 600 are correspondingly connected with the two plug valves 500 one by one, and the two plug valves 500 are correspondingly connected with the two air outlet channels 220 one by one. In practical applications, the number of the air outlet channels 220 may also be varied according to the number of the burners 600, and is not limited herein.

Since other configurations of the gas cooker of the embodiments of the present invention are known to those skilled in the art, they will not be described in detail herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A pressure maintaining valve, comprising:

a first housing (100);

a second housing (200) connected to the first housing (100);

a pressure regulating assembly (300) comprising a membrane (310) and a pressure regulating rod (320) connected with the membrane (310), the diaphragm (310) is connected between the first housing (100) and the second housing (200), the diaphragm (310) is connected with the first shell (100) in a sealing way to form a first cavity (110), the diaphragm (310) is connected with the second shell (200) in a sealing way to form a second cavity (210), at least two air outlet channels (220) which are communicated with the second cavity (210) are arranged on the second shell (200), the end surface of the air outlet end of the air outlet channel (220) is a flange connecting surface (221), the second shell (200) is provided with an air inlet channel (230) communicated with the second cavity (210), the membrane (310) can deform and stretch to drive the pressure regulating rod (320) to move up and down, the lower end of the pressure regulating rod (320) can be matched with an air outlet of the air inlet channel (230) to regulate ventilation volume.

2. The pressure maintaining valve according to claim 1,

the flange connecting surface (221) is arranged obliquely to the axis of the air outlet channel (220).

3. The pressure maintaining valve according to claim 1,

the air outlet of the air inlet channel (230) is arranged upwards and is positioned in the middle of the second cavity (210), and the two air outlet channels (220) are respectively positioned on the left side and the right side of the second shell (200).

4. A pressure maintaining valve according to claim 3,

a connecting ring (231) is detachably connected to an air outlet of the air inlet channel (230), the lower end of the pressure regulating rod (320) penetrates through the connecting ring (231) and is provided with a regulating plug portion (321) located in the air inlet channel (230), the pressure regulating rod (320) can move up and down relative to the second shell (200), and the upper end of the regulating plug portion (321) is in a conical structure and can abut against the connecting ring (231).

5. The pressure maintaining valve according to claim 1,

an elastic piece (400) is arranged in the first cavity (110), and two ends of the elastic piece (400) are respectively connected with the pressure regulating assembly (300) and the first shell (100).

6. A pressure maintaining valve according to claim 5,

the first shell (100) is connected with an adjusting piece (120) through threads, the lower end of the adjusting piece (120) is connected with the upper end of the elastic piece (400), and the lower end of the elastic piece (400) is abutted to the pressure adjusting assembly (300).

7. A pressure maintaining valve according to claim 6,

the pressure regulating assembly (300) further comprises a pressure stabilizing piece (330), the upper end of the pressure regulating rod (320) penetrates through the membrane (310) and is fixedly connected with the pressure stabilizing piece (330), the pressure stabilizing piece (330) is attached to the upper end face of the membrane (310), the lower end of the elastic piece (400) is abutted to the pressure stabilizing piece (330), an abutting boss (322) formed along the radial direction in a protruding mode is arranged on the pressure regulating rod (320), and the abutting boss (322) is abutted to the lower end face of the membrane (310).

8. A pressure maintaining valve according to claim 6,

the second shell (200) is provided with a limiting column (240) formed by protruding from bottom to top, and the limiting column (240) is used for limiting the downward extension degree of the diaphragm (310).

9. The pressure maintaining valve according to claim 1,

the first shell (100) is provided with a vent hole (130) communicated with the first cavity (110), and the first cavity (110) is communicated with the outside air through the vent hole (130).

10. The utility model provides a gas cooking utensils, characterized in that, including plug valve (500), furnace end (600) and according to any one of claims 1 to 9 steady voltage valve, plug valve (500) with furnace end (600) all are equipped with at least two, just give vent to anger passageway (220) set up quantity with the quantity that sets up of plug valve (500) all with the quantity that sets up of furnace end (600) is corresponding, the inlet end of plug valve (500) with steady voltage valve give vent to anger passageway (220) one-to-one and connect through the flange structure, furnace end (600) with plug valve (500) one-to-one is connected.

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