Gas valve and gas stove

Abstract

The present invention belongs to the technical field of gas control, and particularly relates to a gas valve and a gas stove. The present invention aims to solve the problem that the existing gas valve cannot independently control the gas path of a certain ring burner cap and cannot meet the user's demand for multi-influence control of the firepower. The first valve core assembly of the gas valve of the present invention is configured to be able to communicate the main valve chamber with the intake passage after the first action and be able to communicate the main valve chamber with the first outlet passage after the second action; the second valve core assembly is configured to be able to communicate the auxiliary valve chamber with the second outlet passage after the third action. Through the above settings, the main valve body part and the auxiliary valve body part share an intake passage, and the opening and closing of the intake passage are controlled by the first valve core assembly, which is beneficial to simplifying the structure; and the opening and closing of the first outlet passage and the second outlet passage are respectively and independently controlled by the first valve core assembly and the second valve core assembly, so as to realize the independent control of the gas flow of different gas paths and meet the user's demand for diversified control of the firepower.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas control, and particularly relates to a gas valve and a gas stove. Background Art

[0002] A gas stove refers to a kitchen appliance that uses gaseous fuels such as liquefied petroleum gas, artificial gas, and natural gas for direct fire heating. A gas stove is usually provided with a gas valve to adjust the gas output at the burner end of the gas stove, thereby achieving the purpose of adjusting the firepower.

[0003] The burner usually includes multi-ring fire caps such as two-ring and three-ring. The gas valve can only synchronously control the gas circuits of each ring of fire caps, that is, simultaneously open or close each ring of fire caps, or increase or decrease the gas flow of each ring of fire caps, and cannot independently control a certain ring of fire caps. Thus, it cannot meet the user's demand for diverse firepower control.

[0004] Correspondingly, there is a need in the art for a new gas valve and gas stove to solve the above problems. Summary of the Invention

[0005] In order to solve the above problems in the prior art, that is, to solve the problem that the existing gas valve cannot independently control the gas circuit of a certain ring of fire caps and cannot meet the user's demand for diverse firepower control, the present invention provides a gas valve and a gas stove.

[0006] The gas valve includes: a valve body, a first spool assembly, and a second spool assembly; the valve body includes a main valve body portion and at least one auxiliary valve body portion; the main valve body portion is provided with a main valve chamber, an intake passage, and at least one first outlet passage that are respectively communicated with the main valve chamber; the auxiliary valve body portion is provided with an auxiliary valve chamber communicated with the main valve chamber and at least one second outlet passage communicated with the auxiliary valve chamber; the first spool assembly is located in the main valve chamber, and the first spool assembly is configured to be able to block the main valve chamber from the intake passage and the first outlet passage, and after a first action, be able to communicate the main valve chamber with the intake passage, and after a second action, be able to communicate the main valve chamber with the first outlet passage; the second spool assembly is located in the auxiliary valve chamber, and the second spool assembly is configured to be able to block the auxiliary valve chamber from the second outlet passage, and after a third action, be able to communicate the auxiliary valve chamber with the second outlet passage.

[0007] In the alternative technical solution of the above gas valve, a solenoid valve is installed in the intake passage; the first valve core assembly includes a first valve stem and an abutting member. The first valve stem is connected to the main valve body portion. One end of the abutting member is connected to the bottom end of the first valve stem, and the other end of the abutting member abuts against the solenoid valve. Moreover, the abutting member can push open the solenoid valve when the first valve stem is pressed downwards, so that the intake passage communicates with the main valve chamber.

[0008] In the alternative technical solution of the above gas valve, the first valve core assembly further includes a first valve core. The first valve core is provided with at least one first gas passage communicating with the main valve chamber; the first valve core is connected to the first valve stem, and the first valve core rotates under the drive of the first valve stem to enable the first gas passage to communicate with the first outlet passage.

[0009] In the alternative technical solution of the above gas valve, the first gas passage includes a first central cavity communicating with the main valve chamber and at least one first through hole penetrating the side wall of the first central cavity; the side wall of the first central cavity faces the first outlet passage to isolate the main valve chamber from the first outlet passage; the first valve core rotates under the drive of the first valve stem to make the first through hole face the first outlet passage.

[0010] In the alternative technical solution of the above gas valve, the side wall of the first central cavity is provided with a plurality of the first through holes, and the plurality of first through holes are arranged at intervals along the circumferential direction of the first central cavity; the main valve body portion is provided with a plurality of the first outlet passages; the first valve core rotates under the drive of the first valve stem to a preset position, so that a preset first through hole communicates with a preset first outlet passage.

[0011] In the alternative technical solution of the above gas valve, the top of the first central cavity is provided with a first installation passage, and the side wall of the first installation passage is provided with a first limiting groove extending along the axial direction of the first valve stem; the first valve stem is provided with a first limiting arm accommodated in the first limiting groove. The first valve stem passes through the first installation passage, the first central cavity and is connected to the abutting member. The first valve stem can move up and down relative to the first valve core, and the first valve stem can drive the first valve core to rotate relative to the main valve chamber.

[0012] In the alternative technical solution of the above gas valve, the second valve core assembly includes a second valve stem and a second valve core. The second valve stem is connected to the auxiliary valve body portion, and the second valve core is connected to the second valve stem; the second valve core is provided with at least one second gas passage communicating with the auxiliary valve chamber, and the second valve core enables the second gas passage to communicate with the second outlet passage under the drive of the second valve stem.

[0013] In the alternative technical solution of the above gas valve, the second gas passage includes a second central cavity communicating with the auxiliary valve chamber and at least one second through hole penetrating the side wall of the second central cavity; the side wall of the second central cavity faces the second gas outlet passage to isolate the auxiliary valve chamber from the second gas outlet passage; the second valve core rotates under the drive of the second valve rod to make the second through hole face the second gas outlet passage.

[0014] In the alternative technical solution of the above gas valve, the side wall of the second central cavity is provided with a plurality of the second through holes, and the plurality of 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 the second gas outlet passages; the second valve core rotates to a preset position under the drive of the second valve rod to make the preset second through hole communicate with the preset second gas outlet passage.

[0015] The gas stove includes: a burner and the above gas valve; the burner includes at least one first ejector pipe and at least one second ejector pipe, the first gas outlet passage of the gas valve communicates with the first ejector pipe, and the second gas outlet passage of the gas valve communicates with the second ejector pipe

[0016] Those skilled in the art can understand that for the gas valve and the gas stove of the present invention, the valve body of the gas valve includes a main valve body part and at least one auxiliary valve body part; the main valve body part is provided with a main valve chamber, an intake passage and at least one first gas outlet passage respectively communicating with the main valve chamber; the auxiliary valve body part is provided with an auxiliary valve chamber communicating with the main valve chamber and at least one second gas outlet passage communicating with the auxiliary valve chamber; the first valve core assembly is located in the main valve chamber, and the first valve core assembly is configured to be able to block the main valve chamber from the intake passage and the first gas outlet passage, and after the first action, the main valve chamber can be communicated with the intake passage, and after the second action, the main valve chamber can be communicated with the first gas outlet passage; the second valve core assembly is located in the auxiliary valve chamber, and the second valve core assembly is configured to be able to block the auxiliary valve chamber from the second gas outlet passage, and after the third action, the auxiliary valve chamber can be communicated with the second gas outlet passage. Through the above settings, the main valve body part and the auxiliary valve body part share one intake passage, and the opening and closing of the intake passage are controlled by the first valve core assembly, which is beneficial to simplifying the structure; and the opening and closing of the first gas outlet passage and the second gas outlet passage are respectively and independently controlled by the first valve core assembly and the second valve core assembly, so as to realize the independent control of the gas flow of different gas paths, meet the user's demand for the control of the diversity of the firepower, and further improve the user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred embodiments of the gas valve and the gas stove of the present invention will be described below with reference to the accompanying drawings. The drawings are as follows:

[0018] Figure 1It is a schematic structural view of one direction of the gas valve of the present invention;

[0019] Figure 2 It is a schematic structural view of the other direction of the gas valve of the present invention;

[0020] Figure 3 It is a schematic structural view of the first spool assembly of the present invention;

[0021] Figure 4 It is an exploded view of the first spool assembly of the present invention

[0022] Figure 5 It is a top view of the gas valve of the present invention when it is closed;

[0023] Figure 6 It is Figure 5 The D-D cross-sectional view in;

[0024] Figure 7 It is Figure 5 The E-E cross-sectional view in;

[0025] Figure 8 It is Figure 5 The F-F cross-sectional view in;

[0026] Figure 9 It is a top view of the gas valve of the present invention when it is open;

[0027] Figure 10 It is Figure 9 The A-A cross-sectional view in;

[0028] Figure 11 It is Figure 9 The B-B cross-sectional view in;

[0029] Figure 12 It is Figure 9 The C-C cross-sectional view in.

[0030] In the drawings:

[0031] 1. First spool assembly; 11. First valve stem; 12. Thrust member; 121. Connection portion; 122. Transition portion; 123. Thrust portion; 124. Support portion; 13. First spool; 131. First central cavity; 132. First through hole; 133. Third through hole; 134. First installation passageway; 135. First limiting groove; 14. First valve handle; 141. First limiting arm; 142. Clamping groove; 15. First installation bracket; 151. Insert tongue; 16. First installation plate; 171. Clamping member; 172. Pressure plate; 173. Connecting member; 18. First elastic member; 19. Screw; 20. Second elastic member; 21. Sealing ring; 2. Second spool assembly; 22. Second central cavity; 23. Second through hole; 3. Main valve body portion; 31. Main valve cavity; 32. Intake passage; 321. Solenoid valve; 322. Intake port; 33. First exhaust passage; 331. First exhaust joint; 34. Third exhaust passage; 341. Third exhaust joint; 35. Limiting member; 4. Sub-valve body portion; 41. Sub-valve cavity; 42. Second exhaust passage; 421. Second exhaust joint; 5. Connection portion; 51. Communication passage; 52. Connection plate. Detailed implementation manners

[0032] First of all, those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust it as needed to adapt to specific application scenarios. For example, although the gas valve of the present invention is described in combination with a three-ring burner head, this is not restrictive, and gas stoves with other double-ring, four-ring, five-ring and other multi-ring burner heads can be configured with the gas valve of the present invention.

[0033] Secondly, it should be noted that in the description of the present invention, terms such as "inner" and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0034] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] Some gas stoves include an inner-ring burner cap, a middle-ring burner cap, and an outer-ring burner cap to provide a larger combustion area and firepower. Existing gas valves usually include a valve body and a valve core. An intake passage, an inner-ring outlet passage, a middle-ring outlet passage, and an outer-ring outlet passage are provided on the valve body. Three vent holes are provided on the valve core. When the vent holes are communicated with the respective ring outlet passages, the gas of that ring burner cap is opened. That is to say, only the simultaneous opening and closing and the adjustment of the size of each ring burner cap can be controlled simultaneously. In this way, the user's demand for diverse firepower control cannot be met. For example, when the user is using a smaller cookware, they hope to turn off the outer-ring fire; for another example, when the user only needs peripheral heating, they hope to turn off the inner-ring fire.

[0036] In view of this, the gas valve of the present invention includes a main valve body and a sub-valve body, and the main valve body and the sub-valve body are communicated through a gas passage. Gas passages are respectively provided on the main valve body and the sub-valve body. The main valve core and the sub-valve core respectively independently control the opening and closing of their gas passages, so as to realize the independent control of the gas path of a certain ring burner cap and meet the user's demand for diverse firepower control.

[0037] The following describes the preferred technical solutions of the gas valve and the gas stove of the present invention in combination with the above-mentioned gas stove.

[0038] First, refer to Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of one direction of the gas valve of the present invention, Figure 2 is a schematic structural diagram of another direction of the gas valve of the present invention. As shown in Figure 1 and Figure 2 , the embodiment of the present invention provides a gas valve, which includes: a valve body, a first valve core assembly 1, and a second valve core assembly 2; the valve body includes a main valve body portion 3 and at least one sub-valve body portion 4; the main valve body portion 3 is provided with a main valve chamber 31, an intake passage 32 communicated with the main valve chamber 31, and at least one first outlet passage 33; the sub-valve body portion 4 is provided with a sub-valve chamber 41 communicated with the main valve chamber 31 and at least one second outlet passage 42 communicated 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 able to block the main valve chamber 31 from the intake passage 32 and the first outlet passage 33, and after a first action, be able to communicate the main valve chamber 31 with the intake passage 32, and after a second action, be able to communicate the main valve chamber 31 with the first outlet passage 33; the second valve core assembly 2 is located in the sub-valve chamber 41, and the second valve core assembly 2 is configured to be able to block the sub-valve chamber 41 from the second outlet passage 42, and after a third action, be able to communicate the sub-valve chamber 41 with the second outlet passage 42.

[0039] Among them, 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. In order to make the main valve chamber 31 communicate with the sub-valve chamber 41, a communication channel 51 is provided in the connecting portion 5. Optionally, the valve body is an integrally formed unit, that is, the main valve body portion 3, the sub-valve body portion 4, and the connecting portion 5 are integrally formed, which is convenient for processing. In this embodiment, the case where the valve body includes one sub-valve body portion 4 is taken as an example for description. Of course, the structure of the valve body is not limited to this. For example, the valve body may also include two, three or more sub-valve body portions 4 to supply gas to different burner caps respectively, so as to facilitate the individual control of the fire power of each ring burner cap.

[0040] The main valve body portion 3 is provided with a main valve chamber 31, an intake passage 32, and a first outlet passage 33. Among them, the main valve chamber 31 is respectively communicated with the intake passage 32 and the first outlet passage 33, and a first valve core assembly 1 is installed in the main valve chamber 31. The first valve core assembly 1 controls the on-off of the main valve chamber 31 with the intake passage 32 and the first outlet passage 33. Specifically, in the non-working state, referring to Figures 5 to 8 , under the action of the first valve core assembly 1, the main valve chamber 31 is separated from the intake passage 32 and the first outlet passage 33 respectively, and at this time the gas is not connected. Referring to Figures 9 to 12 , after the first valve core assembly 1 makes the first movement, the main valve chamber 31 can be communicated with the intake passage 32. At this time, the gas enters the main valve chamber 31 through the intake passage 32; after the first valve core assembly 1 makes the second movement, the main valve chamber 31 can be communicated with the first outlet passage 33. At this time, the gas in the main valve chamber 31 is discharged through the first outlet passage 33. It can be seen from this that the first valve core assembly 1 separately controls the opening and closing of the intake passage 32 and the opening and closing of the first outlet passage 33 respectively.

[0041] 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 is communicated with the second outlet passage 42, and a second valve core assembly 2 is installed in the sub-valve chamber 41. The second valve core assembly 2 controls the on-off of the sub-valve chamber 41 and the second outlet passage 42. Specifically, in the non-working state, referring to Figures 5 to 8 , under the action of the second valve core assembly 1, the sub-valve chamber 41 is separated from the second outlet passage 42, and at this time the gas is not connected. Referring to Figures 9 to 12 , after the second valve core assembly 2 makes the third movement, the sub-valve chamber 41 can be communicated with the second outlet passage 42. At this time, the gas in the main valve chamber 31 is discharged through the second outlet passage 42.

[0042] It can be understood that for the gas valve provided in the embodiment of the present invention, the main valve body part 3 and the auxiliary valve body part share a common intake passage 32. The opening and closing of the intake passage 32 is controlled by the first valve core assembly 1, which is beneficial to simplifying the structure. The opening and closing of the first outlet passage 33 and the second outlet passage 42 are respectively and independently controlled by the first valve core assembly 1 and the second valve core assembly 2, so as to realize the control of the gas flow rate of different gas paths.

[0043] Therefore, for the gas valve provided in the embodiment of the present invention, its valve body includes a main valve body part 3 and at least one auxiliary valve body part 4; the main valve body part 3 is provided with a main valve chamber 31, an intake passage 32 and at least one first outlet passage 33 that are respectively communicated with the main valve chamber 31; the auxiliary valve body part 4 is provided with an auxiliary valve chamber 41 communicated with the main valve chamber 31 and at least one second outlet passage 42 communicated with the auxiliary 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 able to block the main valve chamber 31 from the intake passage 32 and the first outlet passage 33, and after a first action, the main valve chamber 31 can be communicated with the intake passage 32, and after a second action, the main valve chamber 31 can be communicated with the first outlet passage 33; the second valve core assembly 2 is located in the auxiliary valve chamber 41, and the second valve core assembly 2 is configured to be able to block the auxiliary valve chamber 41 from the second outlet passage 42, and after a third action, the auxiliary valve chamber 41 can be communicated with the second outlet passage 42. Through the above settings, the main valve body part 3 and the auxiliary valve body part share a common intake passage 32. The opening and closing of the intake passage 32 is controlled by the first valve core assembly 1, which is beneficial to simplifying the structure. The opening and closing of the first outlet passage 33 and the second outlet passage 42 are respectively and independently controlled by the first valve core assembly 1 and the second valve core assembly 2, so as to realize the individual control of the gas flow rate of different gas paths, meet the user's demand for diversified control of the firepower, and further improve the user satisfaction.

[0044] Refer to Figure 1 and Figure 2 In a specific implementation manner, a solenoid valve 321 is installed in the intake passage 32. Specifically, the solenoid valve 321 is installed on the intake passage 32, and the solenoid valve 321 cuts off the intake port 322 from the main valve chamber 31.

[0045] Combined with Figure 3 and Figure 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 part 3. One end of the abutting member 12 is connected to the bottom end of the first valve rod 11, and the other end of the abutting member 12 abuts against the solenoid valve 321. The abutting member 12 can push open the solenoid valve 321 when the first valve rod 11 is pressed down, so that the intake passage 32 is communicated with the main valve chamber 31.

[0046] In some optional examples, the top end of the first valve stem 11 is connected to a first valve handle 14. The first valve handle 14 is connected to the main valve body portion 3, and the first valve handle 14 can drive the first valve stem 11 and the abutting member 12 to move up and down relative to the main valve body portion 3. Moreover, when the first valve handle 14 drives the first valve stem 11 to press down, the abutting member 12 can push open the solenoid valve 321, so that the air inlet passage 32 communicates with the main valve chamber 31. Thus, the first action is that the first valve handle 14 drives the first valve stem 11 and the abutting member 12 to press down.

[0047] Specifically, a first mounting bracket 15 and a first mounting plate 16 are respectively arranged at the top end of the main valve chamber 31. After the screws 19 pass through the connection holes arranged on the first mounting bracket 15 and the first mounting plate 16 respectively, they are threadedly connected to the threaded holes arranged on the main valve body portion 3, so as to fix the first mounting bracket 15 and the first mounting plate 16 on the main valve body portion 3. Among them, the first mounting bracket 15 and the first mounting plate 16 are respectively provided with mounting holes communicating with the main valve chamber 31. The lower end of the first valve handle 14 passes through the mounting holes arranged on the first mounting bracket 15 and the first mounting plate 16 and is arranged in the main valve chamber 31 and is connected to the top end of the first valve stem 11. The first mounting bracket 15 and the first mounting plate 16 are arranged at intervals relatively, and a connection assembly and a first elastic member 18 are arranged between the first mounting bracket 15 and the first mounting plate 16. The first valve handle 14 is arranged in the connection assembly 17 and the first elastic member 18. The connection assembly includes a clamping member 171, a pressing plate 172 and a connecting member 173. Among them, 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 the avoidance opening arranged on the connecting member 173 and is connected to the rectangular socket arranged 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 clamping 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 disengage from the tongue 151, and the pressing plate triggers the micro switch to make the igniter ignite.

[0048] Both ends of the first elastic member 18 are respectively abutted against the connection assembly 17 and the first mounting plate 16. Among them, the first elastic member 18 can be a conical spring, so that the first valve handle 14 returns to the initial position after being pressed down. At this time, the solenoid valve 321 is connected to the thermocouple to form a flameout protection device. When the air inlet passage 32 communicates with the main valve chamber 31 or after the thermocouple burns, a certain electric potential is generated and acts on the solenoid valve 321, so that the solenoid valve 321 Figure 10 maintains the open state, and there is no need to keep the first valve handle 14 in the pressed-down state all the time.

[0049] The abutting member 12 is located in the main valve chamber 31 and is connected to the bottom end of the first valve stem 11. For specific referenceFigure 3 and Figure 4 The abutting member 12 includes a connecting portion 121, a transition portion 122, an abutting portion 123 and a supporting portion 124. Figure 10 The connecting portion 121 is connected to the bottom end of the first valve stem 11, and the abutting top portion 123 abuts against the solenoid valve 321; and the connecting portion 121 and the abutting top portion 123 are spaced apart from each other, and the transition portion 122 is located between the connecting portion 121 and the abutting top portion 123, and the connecting portion 121, the transition portion 122 and the abutting top portion 123 form a zigzag structure; the supporting portion 124 is located at the top of the transition portion 122, and is used to abut against the side wall of the main valve chamber 31, so that the connecting portion 121 of the abutting member 12 applies force, and the abutting top portion 123 bears force, and the supporting portion 124 is located between these two points and abuts against the side wall of the main valve chamber 31, thereby forming a lever structure, which makes it simple and labor-saving for the abutting member 12 to push open the solenoid valve 321, and is convenient to operate.

[0050] Combination Figure 2 The main valve body 3 is also provided with a limit member 35, which is sealed and connected to the rear side of the main valve chamber 31. The limit member 35 is provided with a limited space to prevent the push member 12 from shaking in the main valve chamber 31, so that the push member 12 rotates under the action of the support part 124 to push open the solenoid valve 321.

[0051] Therefore, in this implementation, the first valve core assembly 1 includes a first valve stem 11 and a push piece 12. The first valve stem 11 moves downward relative to the main valve chamber 31, thereby pressing down the push piece 12, so that the push piece 12 pushes open the solenoid valve 321, thereby connecting the intake channel 32 with the main valve chamber 31.

[0052] Based on the above embodiments, continue to refer to Figure 3 and Figure 4 The first valve core assembly 1 also includes a first valve core 13, which is provided with at least one first air passage communicating with the main valve chamber 31; the first valve core 13 is connected to the first valve stem 11, and the first valve core 13 rotates under the drive of the first valve stem 11 to communicate the first air passage with the first air outlet channel 33.

[0053] The first valve core 13 is accommodated in the main valve chamber 31. The upper part of the first valve core 13 is a cylindrical structure, and the lower part thereof is a conical structure. The main valve chamber 31 is provided with a conical cavity portion that matches the conical structure. The first valve core 13 is connected to the first valve stem 11. Driven by the first valve handle 14, the first valve stem 11 moves up and down relative to the first valve core 13, and the first valve stem 11 drives the first valve core 13 to rotate.

[0054] The first spool 13 is provided with at least one first gas passage, and one end of the first gas passage communicates with the main valve chamber 31. When the outer wall of the first spool 13 faces the first gas outlet passage 33, the first gas outlet passage 33 is in a blocked state with respect to the main valve chamber 31. At this time, gas cannot enter the first gas outlet passage 33. When the first valve handle 14 rotates, driving the first valve rod 11 and the first spool 13 to rotate to a preset position, the first gas passage communicates with the first gas outlet passage 33, so that the first gas outlet passage 33 communicates with the main valve chamber 31. And, by controlling the rotation angle of the first valve handle 14, the area of the relative interface between the first gas passage and the first gas outlet passage 33 is controlled, so as to achieve the purpose of controlling the gas flow rate in the first gas outlet passage 33.

[0055] In a possible example, referring to Figures 9 to 12 , the first gas passage includes a first central cavity 131 communicating with the main valve chamber 31 and at least one first through hole 132 penetrating the side wall of the first central cavity 131. Specifically, a first central cavity 131 is provided in the conical structure of the first spool 13, and the first central cavity 131 is coaxial with the first spool 13. A first through hole 132 is provided in the side wall of the first central cavity 131, and the first through hole 132 penetrates the thickness of the first central cavity 131, that is, the first through hole 132 communicates with the first central cavity 131.

[0056] Referring to Figure 7 and Figure 8 , when the side wall of the first central cavity 131 faces the first gas outlet passage 33, the main valve chamber 31 and the first gas outlet passage 33 are sealed off, that is to say, the main valve chamber 31 and the first gas outlet passage 33 are blocked. When the first spool 13 rotates to a position where the first through hole 132 faces the first gas outlet passage 33 under the drive of the first valve rod 11, the first through hole 132 communicates with the first gas outlet passage 33, so that the first gas outlet passage 33 communicates 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 intake passage 32, referring to Figure 11 and Figure 12 , the gas in the main valve chamber 31 enters the first gas outlet passage 33 through the first central cavity 131 and the first through hole 132. Of course, by controlling the rotation angle of the first spool 13, the area of the interface between the first through hole 132 and the first gas outlet passage 33 can be controlled, that is, the gas flow rate in the first gas outlet passage 33 can be controlled, so as to control the firepower

[0057] In this example, the first gas passage includes the first central cavity 131 and the first through hole 132, so that the first through hole 132 provided on the side wall of the first spool 13 faces the first gas outlet passage 33 provided on the side wall of the main valve chamber 31 opposite to the side wall of the first spool 13, and the communication between the first gas outlet passage 33 and the main valve chamber 31 can be realized. The structure is simple and the operation is convenient.

[0058] In some specific implementation manners, a plurality of first through holes 132 are provided on the side wall of the first central cavity 131. For example, there are two, three, etc.; and the plurality of first through holes 132 are arranged at intervals along the circumferential direction of the first central cavity 131. Herein, the arrangement of the plurality of first through holes 132 at intervals along the circumferential direction of the first central cavity 131 is understood in a broad sense, that is, the positions of the plurality of first through holes 132 are different along the circumferential direction of the first central cavity 131, and the plurality of first through holes 132 are at the same height of the first central cavity 131, or the positions of the plurality of first through holes 132 are different along the circumferential direction of the first central cavity 131, and the plurality of first through holes 132 are located at different heights of the first central cavity 131. This is beneficial to improving the layout space of the first through holes 132.

[0059] Correspondingly, the main valve body portion 3 is provided with a plurality of first air outlet channels 33, and the number of the first air outlet channels 33 is the same as the number of the first through holes 132. When the first valve core 13 rotates to a preset position driven by the first valve rod 11, so that the first through holes 132 at the preset position communicate with the preset first air outlet channels 33, that is to say, when the first valve core 13 rotates to different positions relative to the main valve cavity 31, the first through holes 132 at different positions communicate with different first air outlet channels 33, thereby realizing the independent control of different gas channels.

[0060] Exemplarily, referring to Figure 12 , two first through holes 132 are arranged at intervals along the circumferential direction of the first central cavity 131. For the convenience of description, one of the first through holes is defined as the third through hole 133; correspondingly, there are two first air outlet channels 33, and for the convenience of description, one of the first air outlet channels 33 is defined as the third air outlet channel 34. In this 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 controls the opening and closing of the gas in both the first air outlet channel 33 and the third air outlet channel 34. Of course, those 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 independently controls the opening and closing of the gas in the first air outlet channel 33 and the third air outlet channel 34.

[0061] Therefore, for the gas valve provided by the embodiment of the present invention, the first valve core 13 is provided with a plurality of first through holes 132, and the main valve body portion 3 can be provided with a plurality of first air outlet channels 33, so that the first valve core assembly 1 can control the opening and closing of the gas in the plurality of first air outlet channels 33, improving the diversity of the control of different gas pipelines, and further meeting the user's demand for the diversity of the firepower control.

[0062] In a specific implementation manner, a first installation channel 134 is provided at the top of the first central cavity 131, and a first limiting groove 135 extending along the axial direction of the first valve stem 11 is provided on the side wall of the first installation channel 134; a first limiting arm 141 received in the first limiting groove 135 is provided on the first valve stem 11. The first valve stem 11 passes through the first installation channel 134 and the first central cavity 131 to be connected to the abutting member 12. The first valve stem 11 can move up and down relative to the first valve core 13, and the first valve stem 11 can drive the first valve core 13 to rotate relative to the main valve cavity 31.

[0063] In this implementation manner, in combination with Figure 3 、 Figure 4 、 Figure 6 and Figure 10 , the first valve stem 11 is received 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 the installation groove provided at the bottom end of the first valve handle 14.

[0064] The first installation channel 134 is a stepped channel. The diameter of the top of the first installation channel 134 is larger, and the diameter of the end close to the first central cavity 131 is smaller. In this way, a second elastic member 20 is installed in the part with a larger diameter. The second elastic member 20 can be a conical spring. It is sleeved on the outside of the first valve stem 11, and its two ends are respectively in contact with the step of the first installation channel 134 and the first valve handle 14. By providing the second elastic member 20 and cooperating with the first elastic member 18, the first valve handle 14 and the first valve stem 11 can return to the initial position after being pressed down. Moreover, a sealing ring 21 is provided between the second elastic member 20 and the step of the first installation channel 134 to prevent gas from leaking through the first installation channel 134.

[0065] A first limiting groove 135 is provided on the side wall of the first installation channel 134, and the first limiting groove 135 extends along the axial direction of the first valve stem 11. A first limiting arm 141 is provided on the first valve stem 11, and the first limiting arm 141 is received in the first limiting groove 135. In this way, the first valve stem 11 can drive the first valve core 13 to rotate, and the first limiting groove 135 provides a limiting effect on the pressing-down position of the first valve stem 11.

[0066] In this embodiment, the first valve stem 11 is connected to the first valve handle 14, and the first limiting arm 141 is arranged on the first valve handle 14. The first limiting arm 141 extends radially along the first valve handle 14. Optionally, a plurality of first limiting arms 141 are arranged at intervals along the circumferential direction of the first valve handle 14. For example, two or three; correspondingly, a plurality of first limiting grooves 135 are arranged on the side wall of the first installation 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 correspond one by one, so as to improve the reliability and stability of the connection between the first valve handle 14 and the first valve core 13.

[0067] With the above arrangement, the first valve stem 11 passes through the first installation channel 134, the first central cavity 131 and is connected to the abutting member 12. The first valve stem 11 can move up and down relative to the first valve core 13 along the first limiting groove 135. At this time, the first valve stem 11 drives the first valve core 13 to move downward as the first action; and the first valve stem 11 can drive the first valve core 13 to rotate relative to the main valve chamber 31. The first valve stem 11 drives the first valve core 13 to rotate relative to the main valve chamber 31 so that the first through hole 132 is communicated with the first air outlet channel 33, which is the second action.

[0068] The following will describe Figure 3 and Figure 4 the structure of the second valve core assembly 2.

[0069] Specifically, the second valve core assembly 2 includes a second valve stem and a second valve core. The second valve stem is connected to the auxiliary valve body part 4, and the second valve core is connected to the second valve stem; at least one second gas passage communicating with the auxiliary valve chamber 41 is arranged on the second valve core. The second valve core is driven by the second valve stem to communicate the second gas passage with the second air outlet channel 42.

[0070] The second valve stem may have the same structure as the first valve stem 11, the second valve core may have the same structure as the first valve core 13, and the number of the second gas passages arranged on the second valve core may be different from the number of the first gas passages arranged on the first valve core 13.

[0071] When the outer wall of the second valve core is opposite to the second air outlet channel 42, the second air outlet channel 42 is in a cut-off state with the auxiliary valve chamber 41. At this time, the gas cannot enter the second air outlet channel 42. When the second valve stem rotates and drives the second valve core to rotate to a preset position, the second gas passage 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. And by controlling the rotation angle of the second valve stem, the area size of the relative interface between the second gas passage and the second air outlet channel 42 is controlled, so as to achieve the purpose of controlling the gas flow rate of the second air outlet channel 42.

[0072] In a possible example, refer to Figures 9 to 12, the second gas passage includes a second central cavity 22 communicating with the auxiliary valve chamber 41 and at least one second through hole 23 penetrating the side wall of the second central cavity 22; the side wall of the second central cavity 22 faces the second gas outlet passage 42 to isolate the auxiliary valve chamber 41 from the second gas outlet passage 42; the second valve core rotates driven by the second valve rod to make the second through hole 23 face the second gas outlet passage 42.

[0073] Referring to Figure 7 and Figure 8 , when the side wall of the second central cavity 22 faces the second gas outlet passage 42, the auxiliary valve chamber 41 is isolated from the second gas outlet passage 42, that is to say, the auxiliary valve chamber 41 and the second gas outlet passage 42 are blocked. When the second valve core rotates driven by the second valve rod until the second through hole 23 faces the second gas outlet passage 42, the second through hole 23 communicates with the second gas outlet passage 42, so that the second gas outlet passage 42 communicates with the auxiliary valve chamber 41 through the second through hole 23 and the second central cavity 22. In the state where the main valve chamber 31 communicates with the intake passage 32, referring to Figure 11 and Figure 12 , the gas in the main valve chamber 31 enters the auxiliary valve chamber 41 through the communication passage 51, and the gas in the auxiliary valve chamber 41 enters the second gas outlet passage 42 through the second central cavity 22 and the second through hole 23.

[0074] Of course, the user can control the rotation angle of the second valve core to control the area of the interface between the second through hole 23 and the second gas outlet passage 42, so as to control the gas flow rate in the second gas outlet passage 42 and further control the firepower.

[0075] In this example, the second gas passage includes the second central cavity 22 and the second through hole 23, so that the second through hole 23 provided on the side wall of the second valve core faces the second gas outlet passage 42 provided on the side wall of the auxiliary valve chamber 41 opposite to the side wall of the second valve core, and the communication between the second gas outlet passage 42 and the auxiliary valve chamber 41 can be realized, with a simple structure and convenient operation.

[0076] It should be noted here that the difference between the second valve core assembly 2 provided in the embodiment of the present invention and the first valve core assembly 1 is that the bottom of the second valve rod of the second valve core assembly 2 is not connected with the abutting member 12; the number of the second through holes 23 and the first through holes 132 may be the same or different; the other structures of the second valve core assembly 2 and the first valve core assembly 1 are the same, which is convenient for the structural assembly and processing of the gas valve.

[0077] In some specific embodiments, a plurality of second through holes 23 are provided on the side wall of the second central cavity 22, for example, two, three, etc.; and the plurality of second through holes 23 are arranged at intervals along the circumferential direction of the second central cavity 22. Among them, the arrangement of the plurality of second through holes 23 at intervals along the circumferential direction of the second central cavity 22 is understood in a broad sense, that is, the positions of the plurality of second through holes 23 are different along the circumferential direction of the second central cavity 22, and the plurality of second through holes 23 are at the same height in the second central cavity 22; or, the positions of the plurality of second through holes 23 are different along the circumferential direction of the second central cavity 22, and the plurality of second through holes 23 are located at different heights in the second central cavity 22. This is beneficial to improving the layout space of the second through holes 23.

[0078] Correspondingly, the auxiliary valve body portion 4 is provided with a plurality of second air outlet channels 42, and the number of the second air outlet channels 42 is the same as the number of the second through holes 23. When the second valve core rotates to a preset position driven by the second valve rod, so that a preset second through hole 23 communicates with a preset second air outlet channel 42. That is to say, when the second valve core rotates to different positions relative to the auxiliary valve cavity 41, different second through holes 23 communicate with different second air outlet channels 42, so as to realize the independent control of different gas channels.

[0079] The embodiment of the present invention also provides a gas stove, which includes a burner and a gas valve; the burner includes at least one first ejector tube and at least one second ejector tube, the first air outlet channel 33 of the gas valve is communicated with the first ejector tube, and the second air outlet channel 42 of the gas valve is communicated with the second ejector tube.

[0080] Refer to Figure 1 and Figure 2 Taking the main valve body portion 3 of a gas valve in the first embodiment of the present invention as an example, which is provided with two air outlet channels (the first air outlet channel 33 and the third air outlet channel 34 respectively), and the auxiliary valve body portion 4 is provided with one second air outlet channel 42 for illustration. A first air outlet joint 331 is provided at the port of the first air outlet channel 33, and the first air outlet joint 331 is connected to the first nozzle through a transfer pipe or directly connected to the first nozzle; a second air outlet joint 421 is provided at the port of the second air outlet channel 42, and the second air outlet joint 421 is connected to the second nozzle through a transfer pipe or directly connected to the second nozzle, and a third air outlet joint 341 is provided at the port of the third air outlet channel 34, and the third air outlet joint 341 is connected to the third nozzle through a transfer pipe or directly connected to the third nozzle.

[0081] Moreover, the gas stove provided by the embodiment of the present invention further includes a burner head, and the burner head is provided with a three-ring fire cover, namely an inner-ring fire cover, an outer-ring fire cover, and a middle-ring fire cover. The burner includes a first ejector tube, a second ejector tube, and a third ejector tube. Among them, one end of the first ejector tube is communicated with the first nozzle, and the other end of the first ejector tube is communicated with the inner-ring fire cover; one end of the second ejector tube is communicated with the second nozzle, and the other end of the second ejector tube is communicated with the outer-ring fire cover; one end of the third ejector tube is communicated with the third nozzle, and the other end of the third ejector tube is communicated with the middle-ring fire cover. Of course, the connection relationship between the three ejector tubes and each ring fire cover is not limited to this, and only an exemplary description is made here.

[0082] The working principle of the gas valve and the gas stove of the present invention will be described below with reference to Figures 5 to 12 illustrate.

[0083] Refer to Figures 5 to 8 , at this time, the gas valve is in the closed state. Specifically, refer to Figure 6 , the electromagnetic valve 321 blocks the intake passage 32, and the gas in the gas supply pipeline communicated with the gas inlet 322 cannot enter the main valve chamber 41. And, the side wall of the first valve core 13 faces the first outlet passage 33 and the second outlet passage 34 respectively. At this time, the first valve core 13 separates the main valve chamber 41 from the first outlet passage 33 and the second outlet passage 34. At the same time, the side wall of the second valve core faces the second outlet passage 42, and the second valve core separates the auxiliary valve chamber 41 from the second outlet passage 42.

[0084] Refer to Figures 9 to 12 , at this time the gas valve is in the open state. Specifically, refer to Figure 10 , press down the first valve handle 14, the first valve handle 14 drives the first valve rod 11 to move downward relative to the first valve core 13, and the pressing member 12 is pressed down to push open the electromagnetic valve 321, so that the intake passage is communicated with the main valve chamber 41, and the gas in the gas supply pipeline enters the main valve chamber 41; and, the gas in the main valve chamber 41 enters the auxiliary valve chamber 41 through the communication passage 51.

[0085] On the one hand, rotate the first valve handle 14, 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 outlet passage 33, the third through hole 133 is communicated with the third outlet passage 34, and the gas in the main valve chamber 41 enters the first central chamber 131, and then enters the first outlet passage 33 and the third outlet passage 34 through the first through hole 132 and the third through hole 133 respectively, so as to supply gas to the inner-ring fire cover and the middle-ring fire cover; and by controlling the rotation angle of the first valve handle 14, the relative areas of the interfaces between the first through hole 132 and the first outlet passage 33 and between the third through hole 133 and the third outlet passage 34 are adjusted, so as to control the firepower of the inner-ring fire cover and the middle-ring fire cover.

[0086] On the other hand, rotate the second valve handle, which drives the second valve stem and the second valve core to rotate, so that the second through hole 23 communicates with the second air outlet channel 42. The gas in the auxiliary valve chamber 41 enters the second air outlet channel 42 through the second central chamber 22 and the second through hole 23, thereby supplying gas to the outer ring burner cap; and by controlling the rotation angle of the second valve handle, the relative area of the interface between the second through hole 23 and the second air outlet channel 42 is adjusted, so as to control the firepower of the outer ring burner cap.

[0087] In summary, for the gas valve of the gas stove of the present invention, its valve body includes a main valve body part 3 and at least one auxiliary valve body part 4; the main valve body part 3 is provided with a main valve chamber 31, an intake passage 32 and at least one first air outlet channel 33 that communicate with the main valve chamber 31 respectively; the auxiliary valve body part 4 is provided with an auxiliary valve chamber 41 that communicates with the main valve chamber 31 and at least one second air outlet channel 42 that communicates with the auxiliary 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 able to block the main valve chamber 31 from the intake passage 32 and the first air outlet channel 33, and after the first action, the main valve chamber 31 can be made to communicate with the intake passage 32, and after the second action, the main valve chamber 31 can be made to communicate with the first air outlet channel 33; the second valve core assembly 2 is located in the auxiliary valve chamber 41, and the second valve core assembly 2 is configured to be able to block the auxiliary valve chamber 41 from the second air outlet channel 42, and after the third action, the auxiliary valve chamber 41 can be made to communicate with the second air outlet channel 42. Through the above settings, the main valve body part 3 and the auxiliary valve body part share an intake passage 32, and the opening and closing of the intake passage 32 are 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 by the first valve core assembly 1 and the second valve core assembly 2, so as to realize the independent control of the gas flow of different gas paths, meet the user's demand for the diversified control of the firepower, and further improve the user satisfaction.

[0088] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A gas valve, characterized in that, Comprising: A valve body, a first spool assembly, and a second spool assembly; the valve body includes a main valve body portion and at least one auxiliary valve body portion; The main valve body portion is provided with a main valve chamber, an air inlet passage, and at least one first air outlet passage that are respectively communicated with the main valve chamber; The auxiliary valve body portion is provided with an auxiliary valve chamber communicated with the main valve chamber and at least one second air outlet passage communicated with the auxiliary valve chamber; The first spool assembly is located in the main valve chamber, and the first spool assembly is configured to be able to block the main valve chamber from the air inlet passage and the first air outlet passage, and after a first action, be able to communicate the main valve chamber with the air inlet passage, and after a second action, be able to communicate the main valve chamber with the first air outlet passage; The second spool assembly is located in the auxiliary valve chamber, and the second spool assembly is configured to be able to block the auxiliary valve chamber from the second air outlet passage, and after a third action, be able to communicate the auxiliary valve chamber with the second air outlet passage; An electromagnetic valve is installed in the air inlet passage; The first spool assembly includes a first valve rod and a pressing member. The first valve rod is connected to the main valve body portion. One end of the pressing member is connected to the bottom end of the first valve rod, and the other end of the pressing member abuts against the electromagnetic valve. Moreover, the pressing member can push open the electromagnetic valve when the first valve rod is pressed down, so that the air inlet passage is communicated with the main valve chamber; The first spool assembly further includes a first spool, and the first spool is provided with at least one first air passage communicated with the main valve chamber; The first spool is connected to the first valve rod, and the first spool rotates under the drive of the first valve rod to communicate the first air passage with the first air outlet passage; The first air passage includes a first central cavity communicated with the main valve chamber and at least one first through hole penetrating through the side wall of the first central cavity; the side wall of the first central cavity faces the first air outlet passage to isolate the main valve chamber from the first air outlet passage; The first spool rotates under the drive of the first valve rod to make the first through hole face the first air outlet passage.

2. The gas valve according to claim 1, characterized in that, The side wall of the first central cavity is provided with a plurality of the first through holes, and the plurality of first through holes are arranged at intervals along the circumferential direction of the first central cavity; the main valve body portion is provided with a plurality of the first air outlet passages; The first spool rotates under the drive of the first valve rod to a preset position, so that a preset first through hole is communicated with a preset first air outlet passage.

3. The gas valve according to claim 1, wherein The top of the first central cavity is provided with a first installation passage, and the side wall of the first installation passage is provided with a first limiting groove extending along the axial direction of the first valve rod; the first valve rod is provided with a first limiting arm accommodated in the first limiting groove. The first valve rod passes through the first installation passage, the first central cavity and is connected to the pressing member. The first valve rod can move up and down relative to the first spool, and the first valve rod can drive the first spool to rotate relative to the main valve chamber.

4. The gas valve according to any one of claims 1 to 3, characterized in that, The second valve core assembly includes a second valve stem and a second valve core. The second valve stem is connected to the auxiliary valve body portion, and the second valve core is connected to the second valve stem. The second valve core is provided with at least one second gas passage communicating with the auxiliary valve chamber. The second valve core is driven by the second valve stem to communicate the second gas passage with the second gas outlet passage.

5. The gas valve according to claim 4, wherein The second gas passage includes a second central chamber communicating with the auxiliary valve chamber and at least one second through hole penetrating the side wall of the second central chamber. The side wall of the second central chamber faces the second gas outlet passage to isolate the auxiliary valve chamber from the second gas outlet passage. The second valve core rotates under the drive of the second valve stem to make the second through hole face the second gas outlet passage.

6. The gas valve according to claim 5, characterized in that, The side wall of the second central chamber is provided with a plurality of the second through holes, and the plurality of the second through holes are arranged at intervals along the circumferential direction of the second central chamber. The auxiliary valve body portion is provided with a plurality of the second gas outlet passages. The second valve core rotates to a preset position under the drive of the second valve stem to communicate a preset second through hole with a preset second gas outlet passage.

7. A gas stove, characterized in that, Comprising: A burner and the gas valve according to any one of claims 1-6. The burner includes at least one first ejector tube and at least one second ejector tube. The first gas outlet passage of the gas valve communicates with the first ejector tube, and the second gas outlet passage of the gas valve communicates with the second ejector tube.

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