CN114251488A - Gas valve and gas stove - Google Patents

Abstract

The invention belongs to the technical field of gas control, and particularly relates to a gas valve and a gas stove. The invention aims to solve the problems that the existing gas valve can not control the gas circuit of a certain ring of fire cover independently and can not meet the control requirement of a user on a plurality of influences of fire. The first valve core assembly of the gas valve can enable the main valve cavity to be communicated with the gas inlet channel after the first action and enable the main valve cavity to be communicated with the first gas outlet channel after the second action; the second spool assembly is configured to enable the secondary valve chamber to communicate with the second outlet passage after a third action. Through the arrangement, the main valve body and the auxiliary valve body share one air inlet channel, and the opening and closing of the air inlet channel are controlled through the first valve core assembly, so that the structure is simplified; and the opening and closing of the first air outlet channel and the second air outlet channel are respectively and independently controlled through the first valve core assembly and the second valve core assembly, so that the independent control of the gas flow of different gas circuits is realized, and the requirement of a user on the control of fire diversity is met.

Description

Gas valve and gas stove

Technical Field

The invention belongs to the technical field of gas control, and particularly relates to a gas valve and a gas stove.

Background

The gas stove is a kitchen utensil which is heated by direct fire with gas fuel such as liquefied petroleum gas, artificial gas, natural gas and the like. A gas valve is usually installed in a gas stove to adjust the gas output of the burner end of the gas stove, so as to achieve the purpose of adjusting the fire.

The combustor usually includes many ring fire covers such as two rings, three rings, and the gas valve can only the gas circuit of each ring fire cover of synchro control, promptly, opens or closes each ring fire cover simultaneously, increases or reduces the gas flow of each ring fire cover, can not control one of them ring fire cover alone, so can not satisfy the demand of user to firepower variety control.

Accordingly, there is a need in the art for a new gas valve and gas range that solves the above problems.

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problems that the existing gas valve cannot control a gas circuit of a certain annular fire cover independently and cannot meet the control requirement of a user on a plurality of influences of fire, the invention provides a gas valve and a gas stove.

The gas valve includes: the valve comprises a valve body, a first valve core assembly and a second valve core assembly; the valve body comprises a main valve body part and at least one auxiliary valve body part; the main valve body is provided with a main valve chamber, and an air inlet channel and at least one first air outlet channel which are respectively communicated with the main valve chamber; the auxiliary valve body part is provided with an auxiliary valve chamber communicated with the main valve chamber and at least one second air outlet channel communicated with the auxiliary valve chamber; the first spool assembly is positioned within the main valve chamber and is configured to block the main valve chamber from the inlet channel and the first outlet channel and to enable the main valve chamber to communicate with the inlet channel after a first event and to enable the main valve chamber to communicate with the first outlet channel after a second event; the second valve core component is positioned in the auxiliary valve chamber and is configured to be capable of blocking the auxiliary valve chamber and the second air outlet channel and enabling the auxiliary valve chamber to be communicated with the second air outlet channel after a third action.

In an optional technical scheme of the gas valve, the air inlet channel is provided with an electromagnetic valve; the first valve core assembly comprises a first valve rod and a propping piece, the first valve rod is connected with the main valve body, one end of the propping piece is connected with the bottom end of the first valve rod, the other end of the propping piece is abutted to the electromagnetic valve, and the propping piece can prop the electromagnetic valve open when the first valve rod is pressed down, so that the air inlet channel is communicated with the main valve cavity.

In an optional technical scheme of the gas valve, the first valve core assembly further comprises a first valve core, and the first valve core is provided with at least one first gas passing channel communicated with the main valve chamber; the first valve core is connected with the first valve rod, and the first valve core is driven by the first valve rod to rotate so as to enable the first air passing channel to be communicated with the first air outlet channel.

In an optional technical scheme of the gas valve, the first gas passing channel comprises a first central cavity communicated with the main valve cavity and at least one first through hole penetrating through a side wall of the first central cavity; the side wall of the first central cavity is opposite to the first air outlet channel so as to seal the main valve cavity and the first air outlet channel; the first valve core is driven by the first valve rod to rotate so that the first through hole is opposite to the first air outlet channel.

In an optional technical scheme of the gas valve, a plurality of first through holes are formed in the side wall of the first central cavity, and the first through holes are arranged at intervals along the circumferential direction of the first central cavity; the main valve body is provided with a plurality of first air outlet channels; the first valve core is driven by the first valve rod to rotate to a preset position, so that the first through hole is communicated with the first air outlet channel.

In an optional technical scheme of the gas valve, a first mounting channel is arranged at the top of the first central cavity, and a first limiting groove extending along the axial direction of the first valve rod is arranged on the side wall of the first mounting channel; the first valve rod is provided with a first limiting arm contained in the first limiting groove, the first valve rod penetrates through the first installation channel and the first central cavity to be connected with the abutting piece, the first valve rod can move up and down relative to the first valve core, and the first valve rod can drive the first valve core to rotate relative to the main valve cavity.

In an optional aspect of the above gas valve, the second spool assembly includes a second stem and a second spool, the second stem is connected to the secondary valve body, and the second spool is connected to the second stem; the second valve core is provided with at least one second gas passing channel communicated with the auxiliary valve cavity, and the second valve core is driven by the second valve rod to enable the second gas passing channel to be communicated with the second gas outlet channel.

In an optional technical scheme of the gas valve, the second gas passing channel comprises a second central cavity communicated with the auxiliary valve cavity and at least one second through hole penetrating through a side wall of the second central cavity; the side wall of the second central cavity is opposite to the second air outlet channel so as to seal the auxiliary valve cavity and the second air outlet channel; the second valve core is driven by the second valve rod to rotate so that the second through hole is opposite to the second air outlet channel.

In an optional technical scheme of the gas valve, a plurality of second through holes are formed in the side wall of the second central cavity, and the second through holes are arranged at intervals along the circumferential direction of the second central cavity; the auxiliary valve body part is provided with a plurality of second air outlet channels; the second valve core is driven by the second valve rod to rotate to a preset position, so that the preset second through hole is communicated with the preset second air outlet channel.

The gas range includes: a burner and the gas valve described above; the combustor comprises at least one first injection pipe and at least one second injection pipe, a first gas outlet channel of the gas valve is communicated with the first injection pipe, and a second gas outlet channel of the gas valve is communicated with the second injection pipe

As will be understood by those skilled in the art, the gas valve and the gas stove of the present invention have a gas valve body comprising a main valve body portion and at least one auxiliary valve body portion; the main valve body is provided with a main valve chamber, and an air inlet channel and at least one first air outlet channel which are respectively communicated with the main valve chamber; the auxiliary valve body part is provided with an auxiliary valve chamber communicated with the main valve chamber and at least one second air outlet channel communicated with the auxiliary valve chamber; the first valve core assembly is positioned in the main valve cavity and is configured to be capable of plugging the main valve cavity and the air inlet channel and the first air outlet channel, and enabling the main valve cavity to be communicated with the air inlet channel after a first action and the main valve cavity to be communicated with the first air outlet channel after a second action; the second valve core assembly is positioned in the auxiliary valve chamber and is configured to be capable of blocking the auxiliary valve chamber and the second air outlet channel and enabling the auxiliary valve chamber to be communicated with the second air outlet channel after a third action. Through the arrangement, the main valve body and the auxiliary valve body share one air inlet channel, and the opening and closing of the air inlet channel are controlled through the first valve core assembly, so that the structure is simplified; and through the switching of first valve core subassembly and second valve core subassembly difference independent control first outlet channel and second outlet channel respectively, realize the independent control to the gas flow of different gas circuits, satisfy the demand of user to firepower variety control, and then improve user satisfaction.

Drawings

Preferred embodiments of the gas valve and the gas range of the present invention will be described below with reference to the accompanying drawings. The attached drawings are as follows:

FIG. 1 is a schematic view of the gas valve of the present invention in one orientation;

FIG. 2 is a schematic view of the gas valve of the present invention in another orientation;

FIG. 3 is a schematic structural view of a first valve core assembly of the present invention;

FIG. 4 is an exploded view of the first valve cartridge assembly of the present invention

FIG. 5 is a top plan view of the gas valve of the present invention closed;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;

FIG. 7 is a cross-sectional view E-E of FIG. 5;

FIG. 8 is a cross-sectional view F-F of FIG. 5;

FIG. 9 is a top plan view of the gas valve of the present invention open;

FIG. 10 is a sectional view A-A of FIG. 9;

FIG. 11 is a cross-sectional view B-B of FIG. 9;

fig. 12 is a cross-sectional view C-C of fig. 9.

In the drawings:

1. a first valve core assembly; 11. a first valve stem; 12. a propping piece; 121. a connecting portion; 122. a transition section; 123. a butting part; 124. a support portion; 13. a first valve spool; 131. a first central lumen; 132. a first via hole; 133. a third via hole; 134. a first installation aisle; 135. A first limit groove; 14. a first valve handle; 141. a first spacing arm; 142. a clamping groove; 15. A first mounting bracket; 151. inserting a tongue; 16. a first mounting plate; 171. a clamping piece; 172. pressing a plate; 173. a connecting member; 18. a first elastic member; 19. a screw; 20. a second elastic member; 21. A seal ring; 2. a second spool assembly; 22. a second central lumen; 23. a second via hole; 3. a main valve body portion; 31. a main valve chamber; 32. an air intake passage; 321. an electromagnetic valve; 322. an air inlet; 33. a first air outlet channel; 331. a first air outlet joint; 34. a third air outlet channel; 341. a third air outlet joint; 35. a limiting member; 4. a secondary valve body portion; 41. a secondary valve chamber; 42. a second air outlet channel; 421. a second air outlet joint; 5. a connecting portion; 51. a communication channel; 52. a connecting plate.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the gas valve of the present invention is described in connection with a three-ring fire cover, this is not intended to be limiting, and other dual-ring, four-ring, five-ring, etc. multi-ring fire covers may be used with the gas valve of the present invention.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Some gas cookers include an inner ring fire cover, a middle ring fire cover, and an outer ring fire cover to provide greater combustion area and fire power. The existing gas valve generally comprises a valve body and a valve core, wherein a gas inlet channel, an inner ring gas outlet channel, a middle ring gas outlet channel and an outer ring gas outlet channel are arranged on the valve body, three vent holes are formed in the valve core, and when the vent holes are communicated with the ring gas outlet channels, gas is opened through the ring fire cover. That is, the simultaneous opening and closing and the size adjustment of the fire covers can be controlled only at the same time. Thus, the requirement of the user for controlling the fire diversity cannot be met, for example, when the user uses a small pot, the user hopes to close the outer ring fire; as another example, the user may wish to turn off the inner ring fire when only peripheral heating is desired.

In view of this, the gas valve of the present invention includes a main valve body and an auxiliary valve body, and the main valve body and the auxiliary valve body are communicated through a gas passageway, the main valve body and the auxiliary valve body are respectively provided with a gas passage, and the main valve core and the auxiliary valve core respectively control the opening and closing of the gas passage independently, so as to realize the independent control of a certain ring fire cover gas path, and meet the requirement of a user on the control of fire diversity.

The preferred technical solution of the gas valve and the gas range of the present invention will be described with reference to the above gas range.

Referring first to fig. 1 and 2, fig. 1 is a schematic view showing one direction of the gas valve of the present invention, and fig. 2 is a schematic view showing the other direction of the gas valve of the present invention. As shown in fig. 1 and 2, an embodiment of the present invention provides a gas valve including: the valve comprises a valve body, a first valve core assembly 1 and a second valve core assembly 2; the valve body comprises a main valve body part 3 and at least one auxiliary valve body part 4; the main valve body 3 is provided with a main valve chamber 31 and an inlet passage 32 and at least one first outlet passage 33 respectively communicating with the main valve chamber 31; the sub valve body portion 4 is provided with a sub valve chamber 41 communicating with the main valve chamber 31 and at least one second outlet passage 42 communicating with the sub valve chamber 41; the first valve core assembly 1 is located in the main valve chamber 31, and the first valve core assembly 1 is configured to be capable of blocking the main valve chamber 31 from the air inlet channel 32 and the first air outlet channel 33, and to enable the main valve chamber 31 to be communicated with the air inlet channel 32 after a first action and enable the main valve chamber 31 to be communicated with the first air outlet channel 33 after a second action; the second spool assembly 2 is located within the secondary valve chamber 41, and the second spool assembly 2 is configured to be able to block the secondary valve chamber 41 and the second outlet channel 42, and to enable the secondary valve chamber 41 and the second outlet channel 42 to communicate after a third action.

The valve body includes a main valve body portion 3, a sub valve body portion 4, and a connecting portion 5 connecting the main valve body portion 3 and the sub valve body portion 4, and a communication passage 51 is provided in the connecting portion 5 so that the main valve chamber 31 and the sub valve chamber 41 communicate with each other. Alternatively, the valve body is an integrally formed one-piece, that is, the main valve body portion 3, the sub valve body portion 4, and the connecting portion 5 are an integrally formed one-piece, so that the processing is facilitated. In the present embodiment, the case where the valve body includes one sub valve body portion 4 is described as an example, but the structure of the valve body is not limited to this, and for example, the valve body may include two, three, or other sub valve body portions 4 to supply air to different fire covers, so that the fire power can be controlled individually for each fire cover.

The main valve body 3 is provided with a main valve chamber 31, an inlet passage 32 and a first outlet passage 33, wherein the main valve chamber 31 is respectively communicated with the inlet passage 32 and the first outlet passage 33, and the first valve core assembly 1 is installed in the main valve chamber 31. The first valve core assembly 1 controls the connection and disconnection between the main valve chamber 31 and the inlet channel 32 and the first outlet channel 33, and specifically, in the non-operating state, referring to fig. 5 to 8, under the action of the first valve core assembly 1, the main valve chamber 31 is separated from the inlet channel 32 and the first outlet channel 33, respectively, and at this time, the gas is not communicated. Referring to fig. 9 to 12, after the first action, the first valve core assembly 1 can communicate the main valve chamber 31 with the intake passage 32, and at this time, the gas enters the main valve chamber 31 through the intake passage 32; after the second operation, the first valve core assembly 1 can communicate the main valve chamber 31 with the first outlet passage 33, and at this time, the gas in the main valve chamber 31 can be discharged through the first outlet passage 33. As can be seen, the first valve body assembly 1 controls the opening and closing of the inlet passage 32 and the opening and closing of the first outlet passage 33 independently.

The sub valve body portion 4 is provided with a sub valve chamber 41 and a second outlet passage 42, the sub valve chamber 41 communicates with the second outlet passage 42, and the second spool assembly 2 is mounted in the sub valve chamber 41. The second valve core assembly 2 controls the on-off of the auxiliary valve chamber 41 and the second outlet channel 42, and specifically, in the non-working state, referring to fig. 5 to 8, under the action of the second valve core assembly 1, the auxiliary valve chamber 41 is separated from the second outlet channel 42, and at the moment, the fuel gas is not passed. Referring to fig. 9 to 12, after the third operation, the second spool assembly 2 can communicate the sub-valve chamber 41 with the second outlet passage 42, and at this time, the gas in the main valve chamber 31 is discharged through the second outlet passage 42.

It can be understood that, in the gas valve provided by the embodiment of the present invention, the main valve body portion 3 and the auxiliary valve body portion share one air inlet channel 32, and the opening and closing of the air inlet channel 32 is controlled by the first valve core assembly 1, which is beneficial to simplifying the structure; and the opening and closing of the first air outlet channel 33 and the second air outlet channel 42 are respectively and independently controlled through the first valve core assembly 1 and the second valve core assembly 2, so that the control of the gas flow of different gas paths is realized.

Therefore, the gas valve provided by the embodiment of the invention has the advantages that the valve body comprises a main valve body part 3 and at least one auxiliary valve body part 4; the main valve body 3 is provided with a main valve chamber 31 and an inlet passage 32 and at least one first outlet passage 33 respectively communicating with the main valve chamber 31; the sub valve body portion 4 is provided with a sub valve chamber 41 communicating with the main valve chamber 31 and at least one second outlet passage 42 communicating with the sub valve chamber 41; the first valve core assembly 1 is located in the main valve chamber 31, and the first valve core assembly 1 is configured to be capable of blocking the main valve chamber 31 from the air inlet channel 32 and the first air outlet channel 33, and to enable the main valve chamber 31 to be communicated with the air inlet channel 32 after a first action and enable the main valve chamber 31 to be communicated with the first air outlet channel 33 after a second action; the second spool assembly 2 is located within the secondary valve chamber 41, and the second spool assembly 2 is configured to be able to block the secondary valve chamber 41 and the second outlet channel 42, and to enable the secondary valve chamber 41 and the second outlet channel 42 to communicate after a third action. Through the arrangement, the main valve body part 3 and the auxiliary valve body part share one air inlet channel 32, and the opening and closing of the air inlet channel 32 are controlled through the first valve core assembly 1, so that the structure is simplified; and the opening and closing of the first air outlet channel 33 and the second air outlet channel 42 are respectively and independently controlled through the first valve core assembly 1 and the second valve core assembly 2, so that the independent control of the gas flow of different gas paths is realized, the requirement of a user on the control of firepower diversity is met, and the satisfaction degree of the user is further improved.

Referring to fig. 1 and 2, in a specific implementation, the intake passage 32 is installed with a solenoid valve 321, specifically, the electronic valve 321 is installed on the intake passage 32, and the solenoid valve 321 blocks the intake port 322 from the main valve chamber 31.

With reference to fig. 3 and 4, the first valve core assembly 1 includes a first valve rod 11 and an abutting member 12, the first valve rod 11 is connected to the main valve body 3, one end of the abutting member 12 is connected to the bottom end of the first valve rod 11, the other end of the abutting member 12 abuts against the electromagnetic valve 321, and the abutting member 12 can push the electromagnetic valve 321 open when the first valve rod 11 is pressed down, so that the air inlet passage 32 is communicated with the main valve chamber 31.

In some optional examples, a first valve handle 14 is connected to the top end of the first valve stem 11, the first valve handle 14 is connected to the main valve body 3, and the first valve handle 14 can drive the first valve stem 11 and the abutting piece 12 to move up and down relative to the main valve body 3. When the first valve stem 11 is pushed down by the first valve handle 14, the abutting piece 12 can open the electromagnetic valve 321, so that the air inlet passage 32 communicates with the main valve chamber 31. Therefore, the first action is that the first valve handle 14 drives the first valve rod 11 and the abutting piece 12 to press down.

Specifically, the first mounting bracket 15 and the first mounting plate 16 are provided at the top end of the main valve chamber 31, and the screws 19 are screwed into threaded holes provided in the main valve body 3 after passing through connection holes provided in the first mounting bracket 15 and the first mounting plate 16, respectively, to fix the first mounting bracket 15 and the first mounting plate 16 to the main valve body 3. Wherein, first installing support 15 and first mounting panel 16 are provided with the mounting hole with main valve chamber 31 intercommunication respectively, and the mounting hole that first installing support 15 and first mounting panel 16 set up is passed through to the low side of first valve handle 14, wears to establish in main valve chamber 31, is connected with the top of first valve rod 11. The first mounting bracket 15 and the first mounting plate 16 are arranged at an interval, a connecting assembly and a first elastic member 18 are arranged between the first mounting bracket 15 and the first mounting plate 16, and the first valve handle 14 penetrates through the connecting assembly 17 and the first elastic member 18. The connecting assembly includes a clamping member 171, a pressing plate 172 and a connecting member 173, wherein the clamping member 171 is clamped in the clamping groove 142 in the first valve handle 14, and the clamping member 171 is in interference connection with the connecting member 173. The first mounting bracket 15 is provided with a tongue 151, and the tongue 151 passes through an avoiding opening provided on the connecting member 173 to be connected with a rectangular socket provided on the pressing plate 172. Under the elastic force of the first elastic member 18, the pressing plate 172 and the connecting member 173 drive the engaging member 171 to abut against the first mounting bracket 15. When the first valve handle 14 is pressed down, the first valve handle 14 drives the clamping member 171, the connecting member 173 and the pressing plate 172 to be disengaged from the latch 151, and the pressing plate triggers the micro switch to ignite the igniter.

Both ends of the first elastic member 18 abut against the connection member 17 and the first mounting plate 16, respectively. Wherein the first elastic member 18 may be a conical spring, so that the first valve handle 14 is restored to an original position after being pressed down. At this time, the solenoid valve 321 is connected to the thermocouple to form a flameout protection device, and when the air inlet passage 32 is communicated with the main valve chamber 31 or the thermocouple is burned, a certain electric potential is generated to act on the solenoid valve 321, so that the solenoid valve 321 maintains the open state in fig. 10 without keeping the first valve handle 14 in the pressed state all the time.

The abutting member 12 is located in the main valve chamber 31 and connected to the bottom end of the first valve stem 11, specifically referring to fig. 3 and 4, the abutting member 12 includes a connecting portion 121, a transition portion 122, an abutting portion 123 and a supporting portion 124, with reference to fig. 10, the connecting portion 121 is connected to the bottom end of the first valve stem 11, and the abutting portion 123 abuts against the solenoid valve 321; the connecting part 121 and the abutting part 123 are arranged at intervals up and down, the transition part 122 is positioned between the connecting part 121 and the abutting part 123, and the connecting part 121, the transition part 122 and the abutting part 123 form a zigzag-like structure; the supporting portion 124 is located at the top of the transition portion 122 and is used for abutting against the sidewall of the main valve chamber 31, so that the connecting portion 121 of the abutting member 12 applies force, the abutting portion 123 bears force, and the supporting portion 124 is located between the two points and abuts against the sidewall of the main valve chamber 31, thereby forming a lever structure, so that the abutting member 12 abuts against the electromagnetic valve 321, and the operation is simple, labor-saving and convenient.

Referring to fig. 2, the main valve body 3 further includes a limiting member 35, the limiting member 35 is connected to the rear side of the main valve chamber 31 in a sealing manner, and the limiting member 35 is provided with a limiting space to prevent the abutting member 12 from swinging in the main valve chamber 31, so that the abutting member 12 rotates under the action of the supporting portion 124 to jack the solenoid valve 321.

Thus, in this implementation, the first valve core assembly 1 includes the first valve rod 11 and the abutting member 12, and the first valve rod 11 moves downward relative to the main valve chamber 31, so as to press the abutting member 12 downward, so that the abutting member 12 abuts against the electromagnetic valve 321, and the air inlet passage 32 communicates with the main valve chamber 31.

On the basis of the above embodiment, with continued reference to fig. 3 and 4, the first valve core assembly 1 further includes a first valve core 13, and the first valve core 13 is provided with at least one first gas passing passage communicated with the main valve chamber 31; the first valve core 13 is connected with the first valve rod 11, and the first valve core 13 is driven by the first valve rod 11 to rotate so as to communicate the first air passing channel with the first air outlet channel 33.

The first valve element 13 is accommodated in the main valve chamber 31, the upper portion of the first valve element 13 has a cylindrical structure, the lower portion thereof has a conical structure, and the main valve chamber 31 is provided with a conical chamber portion which is matched with the conical structure. The first valve core 13 is connected with the first valve rod 11, and under the driving of the first valve handle 14, the first valve rod 11 moves up and down relative to the first valve core 13, and the first valve rod 11 drives the first valve core 13 to rotate.

The first valve core 13 is provided with at least one first gas passing channel, and one end of the first gas passing channel is communicated with the main valve chamber 31. When the outer wall of the first valve core 13 is opposite to the first air outlet channel 33, the first air outlet channel 33 is in a blocking state with the main valve chamber 31, and at this time, gas cannot enter the first air outlet channel 33. When the first valve handle 14 rotates to drive the first valve rod 11 and the first valve core 13 to rotate to the preset position, the first air passing channel is communicated with the first air outlet channel 33, so that the first air outlet channel 33 is communicated with the main valve chamber 31. In addition, by controlling the rotation angle of the first valve handle 14, the area of the interface between the first air passing channel and the first air outlet channel 33 is controlled, so as to achieve the purpose of controlling the gas flow rate of the first air outlet channel 33.

In one possible example, referring to fig. 9 to 12, the first gas passing channel comprises a first central cavity 131 communicating with the main valve chamber 31 and at least one first through hole 132 passing through a side wall of the first central cavity 131. Specifically, a first central cavity 131 is provided in the conical structure of the first valve element 13, and the first central cavity 131 is coaxial with the first valve element 13. A first via hole 132 is disposed on a sidewall of the first central cavity 131, and the first via hole 132 penetrates through the thickness of the first central cavity 131, that is, the first via hole 132 communicates with the first central cavity 131.

Referring to fig. 7 and 8, when the sidewall of the first central cavity 131 is opposite to the first air outlet channel 33, the main valve chamber 31 is sealed from the first air outlet channel 33, that is, the space between the main valve chamber 31 and the first air outlet channel 33 is sealed. When the first valve core 13 is driven by the first valve rod 11 to rotate until the first through hole 132 is opposite to the first air outlet channel 33, the first through hole 132 is communicated with the first air outlet channel 33, so that the first air outlet channel 33 is communicated with the main valve chamber 31 through the first through hole 132 and the first central cavity 131. In a state where the main valve chamber 31 communicates with the inlet passage 32, referring to fig. 11 and 12, the gas in the main valve chamber 31 enters the first outlet passage 33 through the first central cavity 131 and the first via hole 132. Of course, by controlling the rotation angle of the first valve core 13, the area of the first through hole 132 opposite to the interface of the first air outlet channel 33 can be controlled, that is, the gas flow in the first air outlet channel 33 can be controlled, so as to control the fire power

In this example, the first air passing channel includes the first central cavity 131 and the first through hole 132, so that the first through hole 132 opened in the side wall of the first valve core 13 is opposite to the first air outlet channel 33 arranged in the side wall of the main valve chamber 31 opposite to the side wall of the first valve core 13, that is, the first air outlet channel 33 can be communicated with the main valve chamber 31, and the structure is simple and the operation is convenient.

In some specific implementations, the sidewall of the first central cavity 131 is provided with a plurality of first vias 132, e.g., two, three, etc.; and a plurality of first via holes 132 are arranged at intervals along the circumferential direction of the first central cavity 131. The plurality of first vias 132 are disposed at intervals along the circumferential direction of the first central cavity 131, which is to be understood broadly, that is, the plurality of first vias 132 are located at different positions along the circumferential direction of the first central cavity 131, and the plurality of first vias 132 are located at the same height of the first central cavity 131, or the plurality of first vias 132 are located at different positions along the circumferential direction of the first central cavity 131, and the plurality of first vias 132 are located at different heights of the first central cavity 131. This is advantageous in improving the arrangement space of the first via 132.

Accordingly, the main valve body 3 is provided with a plurality of first outlet channels 33, and the number of the first outlet channels 33 is equal to the number of the first via holes 132. When the first valve core 13 is driven by the first valve rod 11 to rotate to a predetermined position, so that the first through hole 132 at the predetermined position is communicated with the predetermined first gas outlet channel 33, that is, when the first valve core 13 rotates to different positions relative to the main valve chamber 31, the first through hole 132 at different positions is communicated with different first gas outlet channels 33, thereby realizing the independent control of different gas outlet channels.

Illustratively, referring to fig. 12, two first vias 132 are disposed at intervals in the circumferential direction of the first central cavity 131, and for convenience of description, one of the first vias is defined as a third via 133; accordingly, two first outlet channels 33 are provided, and for convenience of description, one of first outlet channels 33 is defined as a third outlet channel 34. In the present embodiment, when the first through hole 132 communicates with the first air outlet channel 33, the third through hole 133 also communicates with the third air outlet channel 34, that is, at this time, the first valve core assembly 1 simultaneously controls the opening and closing of the first air outlet channel 33 and the third air outlet channel 34 by the gas. Of course, a person skilled in the art can also change the positions of the first through hole 132 and the third through hole 133 to make the first through hole 132 and the first air outlet channel 33, and the third through hole 133 and the third air outlet channel 34 not communicate simultaneously, that is, the first valve core assembly 1 controls the opening and closing of the gas in the first air outlet channel 33 and the third air outlet channel 34 separately.

Therefore, in the gas valve provided by the embodiment of the present invention, the first valve core 13 is provided with the plurality of first through holes 132, and the main valve body 3 can be provided with the plurality of first gas outlet channels 33, so that the first valve core assembly 1 can control the gas opening and closing of the plurality of first gas outlet channels 33, the diversity of different gas pipeline control is improved, and the requirement of a user on the diversity of fire control is further met.

In a specific implementation manner, a first mounting channel 134 is arranged at the top of the first central cavity 131, and a first limit groove 135 extending along the axial direction of the first valve rod 11 is arranged on the side wall of the first mounting channel 134; the first valve rod 11 is provided with a first limiting arm 141 accommodated in the first limiting groove 135, the first valve rod 11 passes through the first mounting channel 134 and the first central cavity 131 to be connected with the abutting part 12, the first valve rod 11 can move up and down relative to the first valve core 13, and the first valve rod 11 can drive the first valve core 13 to rotate relative to the main valve chamber 31.

In this implementation, referring to fig. 3, 4, 6 and 10, the first valve stem 11 is accommodated in the first installation channel 134 and the first central cavity 131, and the top end of the first valve stem 11 is connected to the first valve handle 14, for example, the top end of the first valve stem 11 is in interference connection with an installation groove provided at the bottom end of the first valve handle 14.

The first mounting channel 134 is a stepped channel, the diameter of the top of the first mounting channel 134 is larger, and the diameter of the end close to the first central cavity 131 is smaller, so that the second elastic member 20 is mounted at the part with the larger diameter, the second elastic member 20 may be a conical spring, which is sleeved on the outer side of the first valve rod 11, and the two ends of the conical spring are respectively abutted to the step of the first mounting channel 134 and the first valve handle 14. By providing the second elastic member 20, the first elastic member 18 is engaged, so that the first valve handle 14 and the first valve stem 11 can be restored to the initial positions after the completion of the depression. And, be provided with sealing washer 21 between the step department of second elastic component 20 and first dark commentaries on classics passageway 134, avoid the gas to leak through first installation passageway 134.

A first stopper groove 135 is provided at a side wall of the first mounting passage 134, and the first stopper groove 135 extends in the axial direction of the first valve stem 11. The first valve rod 11 is provided with a first limiting arm 141, and the first limiting arm 141 is accommodated in the first limiting groove 135. Therefore, the first valve rod 11 can drive the first valve core 13 to rotate, and the first limiting groove 135 provides a limiting effect on the pressing position of the first valve rod 11.

In the present embodiment, the first valve stem 11 is connected to the first valve handle 14, and the first stopper arm 141 is provided on the first valve handle 14. The first stopper arm 141 extends radially along the first valve handle 14. Optionally, the first valve handle 14 is provided with a plurality of first stopper arms 141, for example, two, three, at intervals along the circumferential direction thereof; correspondingly, a plurality of first limiting grooves 135 are formed in the side wall of the first mounting channel 134, and the number of the first limiting grooves 135 is the same as that of the first limiting arms 141, and the positions of the first limiting grooves are in one-to-one correspondence, so that the reliability and stability of the connection between the first valve handle 14 and the first valve core 13 are improved.

Through the arrangement, the first valve rod 11 passes through the first installation channel 134 and the first central cavity 131 to be connected with the abutting part 12, the first valve rod 11 can move up and down along the first limiting groove 135 relative to the first valve core 13, and at the moment, the first valve rod 11 drives the first valve core 13 to move down to form a first action; the first valve rod 11 can drive the first valve core 13 to rotate relative to the main valve chamber 31, and the first valve rod 11 drives the first valve core 13 to rotate relative to the main valve chamber 31, so that the first via hole 132 is communicated with the first air outlet channel 33, which is the second action.

The structure of the second spool assembly 2 will be described with reference to fig. 3 and 4.

Specifically, the second spool assembly 2 includes a second stem and a second spool, the second stem is connected with the auxiliary valve body portion 4, and the second spool is connected with the second stem; the second valve core is provided with at least one second gas passing channel communicated with the auxiliary valve chamber 41, and the second valve core is driven by the second valve rod to enable the second gas passing channel to be communicated with the second gas outlet channel 42.

The second valve rod may have the same structure as the first valve rod 11, the second valve spool may have the same structure as the first valve spool 13, and the second valve spool may be provided with a different number of second gas passing passages than the first valve spool 13.

When the outer wall of the second valve core is opposite to the second gas outlet channel 42, the second gas outlet channel 42 is in a blocking state with the auxiliary valve chamber 41, and at this time, the gas cannot enter the second gas outlet channel 42. When the second valve stem rotates to drive the second valve spool to rotate to the preset position, the second air passing channel is communicated with the second air outlet channel 42, so that the second air outlet channel 42 is communicated with the auxiliary valve chamber 41. In addition, the area of the interface between the second gas passing channel and the second gas outlet channel 42 is controlled by controlling the rotation angle of the second valve rod, so that the purpose of controlling the gas flow of the second gas outlet channel 42 is achieved.

In a possible example, with reference to fig. 9 to 12, the second air passage comprises a second central chamber 22 communicating with the secondary valve chamber 41 and at least one second through hole 23 passing through the side wall of the second central chamber 22; the side wall of the second central cavity 22 is opposite to the second outlet channel 42 to seal the auxiliary valve cavity 41 from the second outlet channel 42; the second valve core is driven by the second valve rod to rotate so that the second through hole 23 is opposite to the second air outlet channel 42.

Referring to fig. 7 and 8, when the side wall of second central cavity 22 is opposite to second outlet channel 42, sub-valve chamber 41 is sealed off from second outlet channel 42, that is, between sub-valve chamber 41 and second outlet channel 42 is sealed off. When the second valve core is driven by the second valve rod to rotate until the second through hole 23 is opposite to the second air outlet channel 42, the second through hole 23 is communicated with the second air outlet channel 42, so that the second air outlet channel 42 is communicated with the auxiliary valve chamber 41 through the second through hole 23 and the second central cavity 22. In a state where the main valve chamber 31 is communicated with the intake passage 32, referring to fig. 11 and 12, the gas in the main valve chamber 31 enters the sub valve chamber 41 through the communication passage 51, and the gas in the sub valve chamber 41 enters the second outlet passage 42 through the second center chamber 22 and the second through hole 23.

Of course, a user can control the area of the interface of the second through hole 23 opposite to the interface of the second air outlet channel 42 by controlling the rotation angle of the second valve core, so that the purpose of controlling the flow of the fuel in the second air outlet channel 42 is achieved, and the firepower is further controlled.

In this example, the second air passing channel includes the second central cavity 22 and the second via hole 23, so that the second via hole 23 formed in the side wall of the second valve core is opposite to the second air outlet channel 42 formed in the side wall of the auxiliary valve chamber 41 opposite to the side wall of the second valve core, that is, the second air outlet channel 42 and the auxiliary valve chamber 41 can be communicated, and the structure is simple and the operation is convenient.

It should be noted that, the second valve core assembly 2 provided by the embodiment of the present invention is different from the first valve core assembly 1 in that the bottom of the second valve rod of the second valve core assembly 2 is not connected to the abutting member 12; the number of the second vias 23 and the number of the first vias 132 may be the same or different; the second valve core assembly 2 is the same as the first valve core assembly 1 in other structures, so that the gas valve is convenient to assemble and process in structure.

In some specific embodiments, the side wall of the second central cavity 22 is provided with a plurality of second vias 23, for example, two, three, etc.; and a plurality of second via holes 23 are provided at intervals in the circumferential direction of the second central cavity 22. The plurality of second via holes 23 are arranged at intervals along the circumferential direction of the second central cavity 22, which is taken as a broad sense, that is, the positions of the plurality of second via holes 23 along the circumferential direction of the second central cavity 22 are different, and the plurality of second via holes 23 are at the same height of the second central cavity 22; alternatively, the positions of the plurality of second via holes 23 along the circumferential direction of the second central cavity 22 are different, and the plurality of second via holes 23 are located at different heights of the second central cavity 22. This is advantageous in increasing the arrangement space of the second via 23.

Accordingly, the sub valve body portion 4 is provided with a plurality of second outlet channels 42, and the number of the second outlet channels 42 is the same as the number of the second via holes 23. When the second valve core is driven by the second valve rod to rotate to a preset position, the preset second via hole 23 is communicated with the preset second air outlet channel 42. That is, when the second valve core rotates to different positions relative to the auxiliary valve chamber 41, the second through holes 23 at different positions are communicated with different second air outlet channels 42, so that the separate control of different gas outlet channels is realized.

The embodiment of the invention also provides a gas stove, which comprises a burner and a gas valve; the burner comprises at least one first injection pipe and at least one second injection pipe, a first gas outlet channel 33 of the gas valve is communicated with the first injection pipe, and a second gas outlet channel 42 of the gas valve is communicated with the second injection pipe.

Referring to fig. 1 and 2, a gas valve according to an embodiment of the present invention will be described by way of example in which the main valve body portion 3 is provided with two gas outlet passages (i.e., the first gas outlet passage 33 and the third gas outlet passage 34), and the sub valve body portion 4 is provided with one second gas outlet passage 42. A first air outlet joint 331 is arranged at a port of the first air outlet channel 33, and the first air outlet joint 331 is connected with the first nozzle through a transfer pipe or directly connected with the first nozzle; a second air outlet joint 421 is arranged at a port of the second air outlet channel 42, the second air outlet joint 421 is connected with the second nozzle through a transfer pipe or directly connected with the second nozzle, a third air outlet joint 341 is arranged at a port of the third air outlet channel 34, and the third air outlet joint 341 is connected with the third nozzle through a transfer pipe or directly connected with the third nozzle.

In addition, the gas stove provided by the embodiment of the invention further comprises a stove head, wherein the stove head is provided with a three-ring fire cover which is respectively an inner ring fire cover, an outer ring fire cover and a middle ring fire cover. The burner comprises a first injection pipe, a second injection pipe and a third injection pipe, wherein one end of the first injection pipe is communicated with the first nozzle, and the other end of the first injection pipe is communicated with the inner ring fire cover; one end of the second injection pipe is communicated with the second nozzle, and the other end of the second injection pipe is communicated with the outer ring fire cover; one end of the third injection pipe is communicated with the third nozzle, and the other end of the third injection pipe is communicated with the middle fire cover. Of course, the connection relationship between the three injection pipes and the fire cover is not limited to this, and is only exemplified here.

The operation of the gas valve and the gas range according to the present invention will be described with reference to fig. 5 to 12.

Referring to fig. 5 to 8, at this time, the gas valve is in a closed state. Specifically, referring to fig. 6, the solenoid valve 321 blocks the air inlet passage 32, and the gas in the gas supply line communicating with the gas inlet 322 cannot enter the main valve chamber 41. The side walls of the first valve element 13 face the first outlet passage 33 and the second outlet passage 34, respectively, and at this time, the first valve element 13 seals the main valve chamber 41 from the first outlet passage 33 and the second outlet passage 34. Meanwhile, a side wall of the second valve spool faces the second outlet passage 42, and the second valve spool seals the sub-valve chamber 41 from the second outlet passage 42.

Referring to fig. 9 to 12, the gas valve is in an open state at this time. Specifically, referring to fig. 10, the first valve handle 14 is pressed downward, the first valve handle 14 drives the first valve rod 11 to move downward relative to the first valve core 13, the abutting member 12 is pressed downward to open the electromagnetic valve 321, so that the air inlet channel is communicated with the main valve chamber 41, and the gas in the gas supply pipeline enters the main valve chamber 41; the gas in the main valve chamber 41 enters the sub valve chamber 41 through the communication passage 51.

On one hand, the first valve handle 14 is rotated, the first valve handle 14 drives the first valve rod 11 and the first valve core 13 to rotate, so that the first through hole 132 is communicated with the first air outlet channel 33, the third through hole 133 is communicated with the third air outlet channel 34, the fuel gas in the main valve chamber 41 enters the first central cavity 131, and then enters the first air outlet channel 33 and the third air outlet channel 34 through the first through hole 132 and the third through hole 133 respectively, so that the inner ring fire cover and the middle ring fire cover are supplied with gas; and the relative areas of the interfaces of the first through hole 132 and the first air outlet channel 33 and the interfaces of the third through hole 133 and the third air outlet channel 34 are adjusted by controlling the rotation angle of the first valve handle 14, so that the firepower of the inner ring fire cover and the middle ring fire cover is controlled.

On the other hand, the second valve handle is rotated, the second valve handle drives the second valve rod and the second valve core to rotate, so that the second through hole 23 is communicated with the second gas outlet channel 42, and the fuel gas in the auxiliary valve chamber 41 enters the second gas outlet channel 42 through the second central cavity 22 and the second through hole 23, so that the outer ring fire cover is supplied with gas; and the relative area of the interface of the second through hole 23 and the second air outlet channel 42 is adjusted by controlling the rotation angle of the second valve handle, so that the firepower of the outer ring fire cover is controlled.

In summary, the gas valve of the gas stove of the present invention comprises a main valve body portion 3 and at least one auxiliary valve body portion 4; the main valve body 3 is provided with a main valve chamber 31 and an inlet passage 32 and at least one first outlet passage 33 respectively communicating with the main valve chamber 31; the sub valve body portion 4 is provided with a sub valve chamber 41 communicating with the main valve chamber 31 and at least one second outlet passage 42 communicating with the sub valve chamber 41; the first valve core assembly 1 is located in the main valve chamber 31, and the first valve core assembly 1 is configured to be capable of blocking the main valve chamber 31 from the air inlet channel 32 and the first air outlet channel 33, and to enable the main valve chamber 31 to be communicated with the air inlet channel 32 after a first action and enable the main valve chamber 31 to be communicated with the first air outlet channel 33 after a second action; the second spool assembly 2 is located within the secondary valve chamber 41, and the second spool assembly 2 is configured to be able to block the secondary valve chamber 41 and the second outlet channel 42, and to enable the secondary valve chamber 41 and the second outlet channel 42 to communicate after a third action. Through the arrangement, the main valve body part 3 and the auxiliary valve body part share one air inlet channel 32, and the opening and closing of the air inlet channel 32 are controlled through the first valve core assembly 1, so that the structure is simplified; and the opening and closing of the first air outlet channel 33 and the second air outlet channel 42 are respectively and independently controlled through the first valve core assembly 1 and the second valve core assembly 2, so that the independent control of the gas flow of different gas paths is realized, the requirement of a user on the control of firepower diversity is met, and the satisfaction degree of the user is further improved.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A gas valve, comprising: the valve comprises a valve body, a first valve core assembly and a second valve core assembly; the valve body comprises a main valve body part and at least one auxiliary valve body part;

the main valve body is provided with a main valve chamber, and an air inlet channel and at least one first air outlet channel which are respectively communicated with the main valve chamber;

the auxiliary valve body part is provided with an auxiliary valve chamber communicated with the main valve chamber and at least one second air outlet channel communicated with the auxiliary valve chamber;

the first spool assembly is positioned within the main valve chamber and is configured to block the main valve chamber from the inlet channel and the first outlet channel and to enable the main valve chamber to communicate with the inlet channel after a first event and to enable the main valve chamber to communicate with the first outlet channel after a second event;

the second valve core component is positioned in the auxiliary valve chamber and is configured to be capable of blocking the auxiliary valve chamber and the second air outlet channel and enabling the auxiliary valve chamber to be communicated with the second air outlet channel after a third action.

2. A gas valve as claimed in claim 1, wherein the intake passage is fitted with a solenoid valve;

the first valve core assembly comprises a first valve rod and a propping piece, the first valve rod is connected with the main valve body, one end of the propping piece is connected with the bottom end of the first valve rod, the other end of the propping piece is abutted to the electromagnetic valve, and the propping piece can prop the electromagnetic valve open when the first valve rod is pressed down, so that the air inlet channel is communicated with the main valve cavity.

3. A gas valve as claimed in claim 2, wherein the first spool assembly further comprises a first spool provided with at least one first gas passing passage communicating with the main valve chamber;

the first valve core is connected with the first valve rod, and the first valve core is driven by the first valve rod to rotate so as to enable the first air passing channel to be communicated with the first air outlet channel.

4. A gas valve as claimed in claim 3, wherein the first gas passage comprises a first central bore communicating with the main valve chamber and at least one first through-bore extending through a side wall of the first central bore; the side wall of the first central cavity is opposite to the first air outlet channel so as to seal the main valve cavity and the first air outlet channel;

the first valve core is driven by the first valve rod to rotate so that the first through hole is opposite to the first air outlet channel.

5. A gas valve as claimed in claim 4, wherein the side wall of the first central chamber is provided with a plurality of first through holes, and the plurality of first through holes are arranged at intervals along the circumference of the first central chamber; the main valve body is provided with a plurality of first air outlet channels;

the first valve core is driven by the first valve rod to rotate to a preset position, so that the first through hole is communicated with the first air outlet channel.

6. A gas valve as claimed in claim 4, wherein the top of the first central chamber is provided with a first mounting channel, the side wall of which is provided with a first limit groove extending in the axial direction of the first valve stem; the first valve rod is provided with a first limiting arm contained in the first limiting groove, the first valve rod penetrates through the first installation channel and the first central cavity to be connected with the abutting piece, the first valve rod can move up and down relative to the first valve core, and the first valve rod can drive the first valve core to rotate relative to the main valve cavity.

7. A gas valve as claimed in any one of claims 1 to 6, wherein the second spool assembly comprises a second stem and a second spool, the second stem being connected to the secondary valve body and the second spool being connected to the second stem;

the second valve core is provided with at least one second gas passing channel communicated with the auxiliary valve cavity, and the second valve core is driven by the second valve rod to enable the second gas passing channel to be communicated with the second gas outlet channel.

8. A gas valve as claimed in claim 7, wherein the second gas passing channel comprises a second central bore communicating with the secondary valve chamber and at least one second through hole extending through a side wall of the second central bore; the side wall of the second central cavity is opposite to the second air outlet channel so as to seal the auxiliary valve cavity and the second air outlet channel; the second valve core is driven by the second valve rod to rotate so that the second through hole is opposite to the second air outlet channel.

9. A gas valve as claimed in claim 8, wherein the side wall of the second central chamber is provided with a plurality of said second through holes, and the plurality of said second through holes are arranged at intervals along the circumference of the second central chamber; the auxiliary valve body part is provided with a plurality of second air outlet channels;

the second valve core is driven by the second valve rod to rotate to a preset position, so that the preset second through hole is communicated with the preset second air outlet channel.

10. A gas range, comprising: a burner and a gas valve as claimed in any one of claims 1 to 9; the combustor comprises at least one first injection pipe and at least one second injection pipe, a first gas outlet channel of the gas valve is communicated with the first injection pipe, and a second gas outlet channel of the gas valve is communicated with the second injection pipe.

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