Gas valve and stove burner

Abstract

The invention discloses a gas valve and a stove burner. The gas valve comprises a plug valve and a stir-frying valve. A gas inlet of a first valve cavity of the plug valve is communicated with the gas inlet channel, an inner ring gas outlet of the first valve cavity is communicated with an inner ring gas channel of the plug valve, and an outer ring gas outlet of the first valve cavity is communicated with an outer ring gas channel of the plug valve; the outer ring gas channel comprises a first gas outlet and a second gas outlet, the first gas outlet is used for being communicated with the outer ring fire cover, the second gas outlet is communicated with a gas inlet of a second valve cavity of the stir-frying valve, and a gas outlet of the second valve cavity is communicated with the inner ring gas channel. According to the invention, fuel gas required by inner ring stir-frying is supplemented for the inner ring fuel gas channel through the outer ring fuel gas channel, and a special stir-frying channel for communicating the first valve cavity with the second valve cavity is not needed. Under the condition that the outer ring gas channel is communicated with the first valve cavity, the stir-frying mode of the inner ring can be started by opening the stir-frying valve, and the triggering angle of stir-frying of the inner ring is increased.

Description

Technical Field

[0001] The present invention relates to the field of cooking appliances, and particularly to a gas valve and a cooking appliance burner. Background Art

[0002] In the field of cooking, the one-key stir-fry function is highly favored. However, the existing one-key stir-fry technology has some limitations. Generally, the existing one-key stir-fry function is achieved through multiple channels, such as the conventional channel of the inner ring and a dedicated stir-fry channel. This design makes the structure relatively complex, not only increasing the manufacturing cost but also potentially bringing inconvenience in maintenance. In addition, the conventional one-key stir-fry function can often only be operated when the knob is turned to 90 degrees for maximum fire, which to a certain extent limits the user experience and cannot meet the diverse requirements for the firepower size in different cooking scenarios. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a gas valve and a cooking appliance burner.

[0004] The present invention solves the above technical problem through the following technical solutions:

[0005] A gas valve, the gas valve includes a cock valve and a stir-fry valve;

[0006] The cock valve includes a first valve body and a first valve core. An air inlet channel, a first valve cavity, an inner-ring gas channel, and an outer-ring gas channel are provided inside the first valve body. The first valve core is disposed in the first valve cavity and can rotate relative to the first valve body around the axis of the first valve core. The air inlet of the first valve cavity is communicated with the air inlet channel, the inner-ring air outlet of the first valve cavity is communicated with the inner-ring gas channel, and the outer-ring air outlet of the first valve cavity is communicated with the outer-ring gas channel;

[0007] The stir-fry valve includes a second valve body and a second valve core. A second valve cavity is provided inside the second valve body. The second valve core is disposed in the second valve cavity and can move relative to the second valve body to open or close the stir-fry valve. The outer-ring gas channel includes a first air outlet and a second air outlet. The first air outlet is used for communicating with an outer-ring burner cap, the second air outlet is communicated with the air inlet of the second valve cavity, and the air outlet of the second valve cavity is communicated with the inner-ring gas channel.

[0008] In this solution, the outer-ring gas channel supplies gas required for inner-ring stir-frying to the inner-ring gas channel. On the one hand, the structure of the gas valve is simplified, and there is no need to set up a dedicated stir-frying channel to connect the first valve chamber and the second valve chamber, thereby reducing the manufacturing cost and maintenance difficulty of the gas valve. On the other hand, when the outer-ring gas channel is connected to the first valve chamber, the stir-frying mode of the inner ring can be activated by opening the stir-frying valve, increasing the trigger angle of the inner-ring stir-frying, applying to more cooking scenarios, and greatly improving the user's cooking experience and operation convenience.

[0009] Preferably, the first valve core is provided with a plurality of inner-ring holes with different apertures and a plurality of outer-ring holes with different apertures in its circumferential direction; the positions of the plurality of inner-ring holes and the inner-ring air outlet of the first valve chamber correspond axially on the first valve core, and the positions of the plurality of outer-ring holes and the outer-ring air outlet of the first valve chamber correspond axially on the first valve core;

[0010] The first valve core can rotate relative to the first valve body between a normal position and a stir-frying position around the axis of the first valve core; when the first valve core is in the stir-frying position, the area of the outer-ring hole aligned with the outer-ring air outlet of the first valve chamber is greater than or equal to twice the area of the inner-ring hole aligned with the inner-ring air outlet of the first valve chamber.

[0011] In this solution, by designing the area of the outer-ring hole to be twice the area of the inner-ring hole, there is enough gas in the outer-ring gas channel, so that when the inner-ring stir-frying is activated, there is still enough gas in the outer-ring gas channel to be supplied to the outer-ring burner cap, ensuring the stability of the outer-ring flame.

[0012] Preferably, the starting angle of the stir-frying position and the initial position of the first valve core in the circumferential direction of the first valve core is 70︒, and the ending angle of the stir-frying position and the initial position of the first valve core in the circumferential direction of the first valve core is 120︒.

[0013] In this solution, by reasonably designing the opening angle of the inner-ring stir-frying, on the one hand, it avoids activating the inner-ring stir-frying when the outer-ring flame is not stable due to too small an opening angle, preventing the flame from going out. On the other hand, it avoids too large an angle resulting in insufficient gas in the outer-ring gas channel, ensuring the stability of the outer-ring flame.

[0014] Preferably, the outer-ring gas channel includes a main path, a first branch path, and a second branch path. The main path is connected to the outer-ring air outlet of the first valve chamber. The inlet of the first branch path is connected to the main path, and the outlet of the first branch path is used to be connected to the outer-ring burner cap. The inlet of the second branch path is connected to the main path, and the outlet of the second branch path is connected to the second valve chamber.

[0015] In this solution, the above setting facilitates the connection between the outer-ring gas passage and the stir-fry valve.

[0016] Preferably, the air inlet of the second branch is arranged between the air inlet of the main path and the air inlet of the first branch.

[0017] In this solution, the above setting enables the gas flowing out of the first valve chamber to first pass through the air inlet of the second branch, preventing most of the gas on the main path from flowing into the first branch due to the continuous supply of gas by the first branch, ensuring that there is sufficient gas supply for the inner-ring gas passage in the second branch, and ensuring the stability of inner-ring stir-frying.

[0018] Preferably, the second valve body is arranged below the inner-ring gas passage and the outer-ring gas passage, and the second branch is inclined downward away from the first valve body.

[0019] In this solution, the above setting enables the second valve body to occupy the space below the inner-ring gas passage and the outer-ring gas passage, reducing the size of the gas valve in the horizontal direction.

[0020] Preferably, the second branch is inclined toward the first branch along the extending direction of the main path.

[0021] In this solution, the above setting shortens the length of the gas valve in the extending direction of the main path, making the structure of the gas valve more compact.

[0022] Preferably, the gas valve further includes a connecting block, both ends of the connecting block are respectively connected to the first valve body and the second valve body, and the second branch is arranged inside the connecting block.

[0023] In this solution, the plug valve and the stir-fry valve are connected into a whole through the connecting block, facilitating the positioning and installation of the whole gas valve.

[0024] Preferably, the stir-fry valve is a strong-suction valve or a solenoid valve.

[0025] A cooking burner, the cooking burner includes the gas valve as described above.

[0026] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0027] The positive and progressive effects of the present invention are as follows: The present invention supplements the gas required for the inner-ring stir-frying through the outer-ring gas passage. On the one hand, the structure of the gas valve is simplified, and there is no need to set up a special stir-frying passage to connect the first valve cavity and the second valve cavity, thereby reducing the manufacturing cost and maintenance difficulty of the gas valve. On the other hand, when the outer-ring gas passage is connected to the first valve cavity, the stir-frying mode of the inner ring can be activated by opening the stir-frying valve, increasing the angle at which the inner-ring stir-frying can be triggered, applying to more cooking scenarios, and greatly improving the user's cooking experience and operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic perspective view of a gas valve according to an embodiment of the present invention.

[0029] Figure 2 FIG. is a schematic internal structure view of a gas valve according to an embodiment of the present invention.

[0030] Figure 3 FIG. is another schematic internal structure view of a gas valve according to an embodiment of the present invention.

[0031] Figure 4 FIG. is another schematic internal structure view of a gas valve according to an embodiment of the present invention.

[0032] Figure 5 FIG. is another schematic internal structure view of a gas valve according to an embodiment of the present invention.

[0033] Figure 6 FIG. is a schematic perspective view of a first valve core according to an embodiment of the present invention.

[0034] DESCRIPTION OF THE REFERENCE NUMERALS:

[0035] Plug valve 1

[0036] First valve body 2

[0037] Intake passage 21

[0038] Outlet of the intake passage 211

[0039] First valve cavity 22

[0040] Intake port of the first valve cavity 221

[0041] Inner-ring outlet of the first valve cavity 222

[0042] Outer-ring outlet of the first valve cavity 223

[0043] Inner-ring gas passage 23

[0044] Outer-ring gas passage 24

[0045] Main path 241

[0046] The air inlet 2411 of the main path

[0047] The first air outlet 2412

[0048] The second air outlet 2413

[0049] The first branch 242

[0050] The air inlet 2421 of the first branch

[0051] The air outlet 2422 of the first branch

[0052] The second branch 243

[0053] The air inlet 2431 of the second branch

[0054] The air outlet 2432 of the second branch

[0055] The first valve core 3

[0056] The inner ring hole 31

[0057] The outer ring hole 32

[0058] The stir-fry valve 4

[0059] The second valve body 5

[0060] The second valve cavity 51

[0061] The air inlet 511 of the second valve cavity

[0062] The air outlet 512 of the second valve cavity

[0063] The second valve core 6

[0064] The connecting block 7 Specific embodiments

[0065] The present invention will be further described below by way of examples, but the present invention is not limited to the scope of the described examples

[0066] This embodiment discloses a cooking stove burner, including a gas valve as shown in Figure 1 the figure.

[0067] As shown in Figures 1-6 the figure, the gas valve includes a plug valve 1 and a stir-fry valve 4. The plug valve 1 is used to adjust the firepower of the burner, and the stir-fry valve 4 is used to open and close the inner ring stir-fry mode.

[0068] As shown in Figures 1-6 the figure, the plug valve 1 includes a first valve body 2 and a first valve core 3.

[0069] As shown in Figures 2-4As shown in the figure, an intake passage 21, a first valve chamber 22, an inner-ring gas passage 23, and an outer-ring gas passage 24 are provided inside the first valve body 2. The intake port of the intake passage 21 is connected to a gas pipeline, and the outlet port 211 of the intake passage is connected to the intake port 221 of the first valve chamber. The inner-ring outlet port 222 of the first valve chamber is connected to the inner-ring gas passage 23, and the outer-ring outlet port 223 of the first valve chamber is connected to the outer-ring gas passage 24.

[0070] As Figure 6 shown in the figure, the first valve core 3 is arranged inside the first valve chamber 22 and can rotate relative to the first valve body 2 around the axis of the first valve core 3. A plurality of inner-ring holes 31 with different apertures and a plurality of outer-ring holes 32 with different apertures are provided on the circumference of the first valve core 3. The positions of the plurality of inner-ring holes 31 and the inner-ring outlet port 222 of the first valve chamber correspond axially on the first valve core 3, and the positions of the plurality of outer-ring holes 32 and the outer-ring outlet port 223 of the first valve chamber correspond axially on the first valve core 3. By rotating the first valve core 3, the inner-ring holes 31 with different apertures are aligned with the inner-ring outlet port 222 of the first valve chamber, and the outer-ring holes 32 with different apertures are aligned with the outer-ring outlet port 223 of the first valve chamber, thereby realizing the connection between the first valve chamber 22 and the inner-ring gas passage 23 and the outer-ring gas passage 24. The inner-ring holes 31 and the outer-ring holes 32 with different apertures will provide different gas amounts to the inner-ring gas passage 23 and the outer-ring gas passage 24, realizing the adjustment of the flame power of the inner-ring burner cap and the outer-ring burner cap.

[0071] As Figure 2 、 Figure 3 and Figure 5 shown in the figure, the stir-fry valve 4 includes a second valve body 5 and a second valve core 6.

[0072] As Figure 5 shown in the figure, a second valve chamber 51 is provided inside the second valve body 5. The second valve core 6 is arranged inside the second valve chamber 51 and can move relative to the second valve body 5 to open or close the stir-fry valve 4. Specifically, in this embodiment, the second valve core 6 moves linearly relative to the second valve body 5, and the second valve core 6 realizes the opening and closing of the stir-fry valve 4 by opening and blocking the outlet port 512 of the second valve chamber.

[0073] As Figure 3 and Figure 5As shown, the outer-ring gas passage 24 includes a main path 241, a first branch path 242, and a second branch path 243. The air inlet 2411 of the main path communicates with the outer-ring air outlet 223 of the first valve cavity. The main path 241 further includes a first air outlet 2412 and a second air outlet 2413. The first air outlet 2412 communicates with the air inlet 2421 of the first branch path. The air outlet 2422 of the first branch path is used to communicate with the outer-ring burner cap. The second air outlet 2413 communicates with the air inlet 2431 of the second branch path. The air outlet 2432 of the second branch path communicates with the air inlet 511 of the second valve cavity. The air outlet 512 of the second valve cavity communicates with the inner-ring gas passage 23.

[0074] Further, as Figure 1 shown, the gas valve further includes a connecting block 7. Both ends of the connecting block 7 are respectively connected to the first valve body 2 and the second valve body 5. The second branch path 243 is disposed inside the connecting block 7. In this embodiment, the cock valve 1 and the stir-fry valve 4 are connected into an integral body through the connecting block 7, which facilitates the positioning and installation of the whole gas valve.

[0075] The first valve core 3 can rotate relative to the first valve body 2 between a normal position and a stir-fry position around the axis of the first valve core 3. When the first valve core 3 rotates in the normal position area, it is not recommended that the user open the stir-fry valve 4. At this time, the second branch path 243 is not communicated with the inner-ring gas passage 23, and the gas in the outer-ring gas passage 24 cannot be transported to the inner-ring gas passage 23, and the inner-ring burner cap generates normal firepower. When the first valve core 3 rotates in the stir-fry position area, the user can choose whether to open the stir-fry valve 4 according to whether there is an inner-ring stir-fry requirement. When the stir-fry valve 4 is opened, the second branch path 243 is communicated with the inner-ring gas passage 23, and the gas in the outer-ring gas passage 24 is transported to the inner-ring gas passage 23 through the second valve cavity 51, and the firepower of the inner-ring burner cap increases to generate stir-fry firepower.

[0076] In this embodiment, the outer-ring gas passage 24 supplements the gas required for inner-ring stir-fry for the inner-ring gas passage 23. On the one hand, the structure of the gas valve is simplified, and there is no need to set up a special stir-fry passage to communicate the first valve cavity 22 and the second valve cavity 51, thereby reducing the manufacturing cost and maintenance difficulty of the gas valve. On the other hand, when the outer-ring gas passage 24 is communicated with the first valve cavity 22, the stir-fry mode of the inner ring can be started by opening the stir-fry valve 4, increasing the angle at which the inner-ring stir-fry can be triggered, applying to more cooking scenarios, and greatly improving the user's cooking experience and operation convenience.

[0077] Further, when the first valve core 3 is in the stir-fry position, the area of the outer ring hole 32 aligned with the outer ring air outlet 223 of the first valve cavity is greater than or equal to twice the area of the inner ring hole 31 aligned with the inner ring air outlet 222 of the first valve cavity. That is, the gas flow rate in the outer ring gas passage 24 is twice that in the inner ring gas passage 23, so that there is enough gas in the outer ring gas passage 24. Thus, when the inner ring stir-fry is turned on, there is still enough gas in the outer ring gas passage 24 to supply the outer ring burner cap, ensuring the stability of the outer ring flame.

[0078] In this embodiment, the starting angle of the stir-fry position and the initial position of the first valve core 3 in the circumferential direction of the first valve core 3 is 70°, and the ending angle of the stir-fry position and the initial position of the first valve core 3 in the circumferential direction of the first valve core 3 is 120°. Herein, the initial position refers to the position of the valve core when the user does not perform the ignition operation. That is, in this embodiment, when the first valve core 3 rotates by 70° to 120°, the user can choose whether to open the stir-fry valve 4 according to whether there is a need for inner ring stir-fry.

[0079] In other alternative embodiments, it is also possible to open the stir-fry valve 4 when the first valve core 3 rotates at other angles, as long as the gas flow rate in the outer ring gas passage 24 is sufficient and stable. In this embodiment, the rotation angle of the first valve core 3 is controlled above 70° because when the rotation angle of the first valve core 3 is too small, the outer ring flame is not yet stable. At this time, when the inner ring stir-fry is turned on, it is easy to cause the flame to go out. In this embodiment, the rotation angle of the first valve core 3 is controlled above 120° because when the rotation angle of the first valve core 3 is too large, there will be less gas in the outer ring gas passage 24, and there is not enough gas in the outer ring gas passage 24 to support the inner ring stir-fry. At this time, when the inner ring stir-fry is turned on, it is also easy to cause the flame to go out.

[0080] Further, the normal position and the stir-fry position can be marked on the cooktop to facilitate the user's identification and prevent the user from opening the stir-fry valve 4 when the first valve core 3 is not rotated in place.

[0081] Further, as Figure 2As shown, the air inlet 2431 of the second branch is provided between the air inlet 2411 of the main path and the air inlet 2421 of the first branch, so that the gas flowing out of the first valve chamber 22 can first pass through the air inlet 2431 of the second branch. Since the first branch 242 continuously supplies gas to the outer ring burner cap after the user ignites, the air pressure in the first branch 242 may be relatively low. Under the action of the pressure difference, the gas in the main path 241 will flow towards the first branch 242. Therefore, letting the gas in the main path 241 first pass through the air inlet 2431 of the second branch and then through the air inlet 2421 of the first branch can prevent most of the gas in the main path 241 from flowing into the first branch 242 due to the continuous gas supply of the first branch 242, ensuring that the second branch 243 has sufficient gas supply to the inner ring gas passage 23 and ensuring the stability of the inner ring high-fire cooking.

[0082] As Figure 1 and Figure 5 As shown, the second valve body 5 is provided below the inner ring gas passage 23 and the outer ring gas passage 24. The second branch 243 is inclined downward from top to bottom in a direction away from the first valve body 2, and the second branch 243 is inclined in a direction close to the first branch 242 along the extension direction of the main path 241. In this embodiment, the second valve body 5 occupies the space below the inner ring gas passage 23 and the outer ring gas passage 24, reducing the size of the gas valve in the horizontal direction and shortening the length of the gas valve in the extension direction of the main path 241, making the structure of the gas valve more compact.

[0083] The high-fire cooking valve 4 in this embodiment is a strong suction valve, and the opening and closing of the high-fire cooking valve 4 are controlled by electrical components.

[0084] In other alternative embodiments, the high-fire cooking valve 4 can also be a solenoid valve. After the solenoid valve is powered on, it generates magnetism to adsorb the second valve core 6, keeping the high-fire cooking valve 4 in an open state. Further, the solenoid valve is also provided with a timing device, which automatically cuts off the power after adsorbing for a preset time, causing the second valve core 6 to reset and the high-fire cooking valve 4 to close. Further, the user can manually press the second valve core 6 to open the high-fire cooking valve 4 through a mechanical mechanism. For example, a valve rod extending above the cooktop can be added, and the valve rod is connected to the second valve core 6, and the second valve core 6 is driven to move by pressing the valve rod. In this way, the moving direction of the second valve core 6 is different from that in this embodiment, and the second valve core 6 needs to move in the vertical direction.

[0085] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are all based on the orientation or positional relationship shown when the device or component is in normal use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0086] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A gas valve, characterized in that: The gas valve includes a plug valve and a stir-fry valve; The plug valve comprises a first valve body and a first valve core, wherein an air inlet passage, a first valve cavity, an inner ring gas passage and an outer ring gas passage are arranged inside the first valve body, and the first valve core is arranged in the first valve cavity and can rotate relative to the first valve body around the axis of the first valve core; an air inlet of the first valve cavity is communicated with the air inlet passage, an inner ring air outlet of the first valve cavity is communicated with the inner ring gas passage, and an outer ring air outlet of the first valve cavity is communicated with the outer ring gas passage; The stir-fry valve includes a second valve body and a second valve core, a second valve cavity is provided inside the second valve body, the second valve core is provided in the second valve cavity and can move relative to the second valve body to open or close the stir-fry valve; the outer ring gas channel includes a first air outlet and a second air outlet, the first air outlet is used to communicate with the outer ring fire cover, the second air outlet is connected to the air inlet of the second valve cavity, and the air outlet of the second valve cavity is connected to the inner ring gas channel.

2. The gas valve according to claim 1, characterized in that: The first valve core is provided with a plurality of inner ring holes of different diameters and a plurality of outer ring holes of different diameters in the circumferential direction thereof; the plurality of inner ring holes and the inner ring air outlet of the first valve cavity correspond to each other in the axial direction of the first valve core, and the plurality of outer ring holes and the outer ring air outlet of the first valve cavity correspond to each other in the axial direction of the first valve core; The first valve core can rotate around the axis of the first valve core relative to the first valve body between a normal position and a stir-fry position; When the first valve core is in the stir-frying position, the area of ​​the outer ring hole aligned with the outer ring air outlet of the first valve cavity is greater than or equal to twice the area of ​​the inner ring hole aligned with the inner ring air outlet of the first valve cavity.

3. The gas valve according to claim 2, characterized in that: The angle between the starting point of the stir-frying position and the initial position of the first valve core in the circumferential direction of the first valve core is 70°, and the angle between the end point of the stir-frying position and the initial position of the first valve core in the circumferential direction of the first valve core is 120°.

4. The gas valve according to claim 1, characterized in that: The outer ring gas channel includes a main road, a first branch road and a second branch road. The main road is connected to the outer ring air outlet of the first valve cavity, the air inlet of the first branch road is connected to the main road, the air outlet of the first branch road is used to connect to the outer ring fire cover, the air inlet of the second branch road is connected to the main road, and the air outlet of the second branch road is connected to the second valve cavity.

5. The gas valve according to claim 4, characterized in that: The air inlet of the second branch is arranged between the air inlet of the main road and the air inlet of the first branch.

6. The gas valve according to claim 5, characterized in that: The second valve body is arranged below the inner ring gas passage and the outer ring gas passage, and the second branch is inclined from top to bottom in a direction away from the first valve body.

7. The gas valve according to claim 6, characterized in that: The second branch road is inclined along the extension direction of the main road toward a direction close to the first branch road.

8. The gas valve according to claim 6, characterized in that: The gas valve further comprises a connecting block, two ends of which are respectively connected to the first valve body and the second valve body, and the second branch is arranged inside the connecting block.

9. The gas valve according to any one of claims 1 to 8, characterized in that: The stir-fry valve is a strong suction valve or a solenoid valve.

10. A stove burner, characterized in that: The stove burner comprises a gas valve as claimed in any one of claims 1 to 9.

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