Gas stove

Abstract

The utility model provides a gas stove. The gas stove comprises a gas mixing chamber, a regulating valve and a plug valve, the regulating valve comprises a fuel gas inlet channel, a first fuel gas channel and a second fuel gas channel, the fuel gas inlet channel is communicated with the plug valve, and the first fuel gas channel and the second fuel gas channel are respectively communicated with two adjacent gas mixing chambers in the radial direction of the gas mixing chambers; the regulating valve internally comprises a valve cavity and a valve element, the fuel gas inlet channel, the first fuel gas channel and the second fuel gas channel communicate with the valve cavity, and the valve element is arranged in the valve cavity and moves relative to the valve cavity so that the regulating valve can be switched between the first state and the second state. Wherein the amount of the fuel gas flowing into the regulating valve is not changed, so that the amount of the fuel gas flowing into different gas mixing chambers by the regulating valve is the same, and the generated firepower is also the same. A user switches the regulating valve to use the gas mixing chambers in different radial directions, firepower change is avoided, stability is improved, applicable cooking scenes are increased, and user experience is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen stoves, and in particular to a gas stove. Background Technology

[0002] As people's demands for cooking efficiency and precise heat control continue to increase, the structural design of traditional stoves is gradually revealing some problems. Currently, the diameter of the burner ring is adjusted by changing the heat intensity; increasing the heat increases the ring diameter, for example, by adding an outer ring of heat to the inner ring; conversely, decreasing the heat decreases the ring diameter, for example, changing from heat on both the inner and outer rings to heat only the inner ring. With the increasing demands of users, the existing method of adjusting the burner ring diameter has limitations in its applicability to various cooking scenarios. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects in the prior art and provide a gas stove.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A gas stove includes a mixing chamber, a regulating valve, and a stopcock valve. The mixing chamber includes an inner ring mixing chamber, a middle ring mixing chamber, and an outer ring mixing chamber. The middle ring mixing chamber is sleeved around the outer periphery of the inner ring mixing chamber, and the outer ring mixing chamber is sleeved around the outer periphery of the middle ring mixing chamber. The regulating valve includes a gas inlet passage, a first gas passage, and a second gas passage. The gas inlet passage is connected to the stopcock valve. The first gas passage and the second gas passage are respectively connected to two radially adjacent mixing chambers.

[0006] The regulating valve includes a valve cavity and a valve core. The gas inlet channel, the first gas channel and the second gas channel are respectively connected to the valve cavity. The valve core is disposed inside the valve cavity and moves relative to the valve cavity to switch the regulating valve between a first state and a second state.

[0007] In the first state, the gas intake passage is connected to the first gas passage, and the gas intake passage is not connected to the second gas passage;

[0008] In the second state, the gas intake passage is connected to the second gas passage, and the gas intake passage is not connected to the first gas passage.

[0009] In this design, the first and second gas passages of the regulating valve are connected to two mixing chambers of different radial directions. Therefore, by opening or closing the regulating valve, it can be connected to different mixing chambers without adjusting the opening of the stopcock. The amount of gas flowing into the regulating valve remains unchanged, ensuring that the amount of gas flowing into each mixing chamber is the same, resulting in consistent heat output. Users can switch the regulating valve to use different radial mixing chambers without affecting the heat output, improving stability, expanding applicability to various cooking scenarios, and effectively enhancing the user experience.

[0010] Preferably, the gas intake passage is located between the first gas passage and the second gas passage in the moving direction of the valve core, and the first gas passage and the gas intake passage are spaced apart along the moving direction of the valve core.

[0011] In this solution, the above configuration provides a way to ensure that the gas intake channel is connected only to the first gas channel and the second gas channel, resulting in a relatively simple overall layout. When the valve core moves between the first gas channel and the gas intake channel, the gas intake channel is connected to the second gas channel; when the valve core moves between the second gas channel and the gas intake channel, the gas intake channel is connected to the first gas channel.

[0012] Preferably, the gas intake passage is located on one side of the valve chamber, and the first gas passage and the second gas passage are located on the other side of the valve chamber.

[0013] In this design, the gas inlet channel, the first gas channel, and the second gas channel are positioned on opposite sides of the valve chamber. This ensures a smooth flow path for the gas after it enters the regulating valve, reducing turns and other obstructions during flow, avoiding unnecessary resistance, and shortening the gas flow path, allowing the regulating valve to supply gas to the mixing chamber more quickly. Furthermore, it shortens the dimensions of the regulating valve in the valve core movement direction.

[0014] Preferably, the extension direction of the first gas passage is perpendicular to the movement direction of the valve core, and the regulating valve further includes a connecting channel, the two ends of which are respectively connected to the first gas passage and the valve chamber, and the extension direction of the connecting channel is parallel to the movement direction of the valve core;

[0015] When the regulating valve is in the first state, the valve core closes the port at the end of the connecting channel that communicates with the valve cavity.

[0016] In this solution, the first gas passage and the valve chamber are connected by setting a connecting channel, which shortens the movement path of the valve core and allows the valve core to move into place more quickly during the switching process, thus improving the switching efficiency. Moreover, the movement direction of the valve core is the same as the extension direction of the connecting channel, and the valve core can directly seal the port of the connecting channel, making the cooperation between the valve core and the connecting channel more convenient.

[0017] Preferably, the regulating valve further includes an annular protrusion that extends from the inner wall of the connecting channel into the interior of the valve cavity, and the valve core is capable of abutting against the end of the protrusion away from the connecting channel.

[0018] In this solution, the above settings can further shorten the movement path of the valve core, improve the switching efficiency of the regulating valve, and allow users to quickly switch between different diameter spark rings according to their needs, effectively improving the user experience.

[0019] Preferably, the inner diameter of the valve cavity is the same as the diameter of the valve core; and / or, along the moving direction of the valve core, the inner diameter of the valve cavity gradually decreases from the first gas passage toward the second gas passage, the inner diameter of the valve cavity on the side closer to the first gas passage is greater than the diameter of the valve core, and the inner diameter of the valve cavity on the side closer to the second gas passage is less than or equal to the diameter of the valve core.

[0020] In this design, a radial seal between the valve core and the valve cavity prevents gas from flowing between the first and second gas passages through the gap between the inner circumferential walls of the valve core and the valve cavity, thus improving the reliability of the regulating valve. When the inner diameter of the valve cavity is the same as the diameter of the valve core, the valve cavity and the valve core always maintain a sealed state, resulting in good sealing performance. As the inner diameter of the valve cavity gradually decreases, the resistance to the movement of the valve core within the valve cavity is reduced, facilitating rapid movement of the valve core for switching the state of the regulating valve. When the valve core approaches the second gas passage, it seals with the valve cavity and also acts as a limit, preventing the valve core from moving further after reaching the inlet of the second gas passage.

[0021] Preferably, the peripheral surface of the valve core that contacts the valve cavity is an arc surface, and the arc surface protrudes in a direction away from the valve core.

[0022] In this design, the circumferential surface of the valve core is made into an arc surface, which reduces the contact area between the valve core and the valve cavity, thereby reducing the resistance to the movement of the valve core in the valve cavity without affecting its sealing performance.

[0023] Preferably, the regulating valve further includes a drive unit, a valve stem, and a retaining ring. The valve core and the drive unit are respectively disposed on both sides of the retaining ring in the direction of movement of the valve core. One end of the valve stem is connected to the valve core, and the other end of the valve stem passes through the retaining ring and is connected to the drive unit.

[0024] When the regulating valve is in the second state, the retaining ring abuts against one side of the valve core in the direction of movement of the valve core.

[0025] In this design, the valve stem connects the valve core and the drive unit. The valve core moves within the valve cavity via the drive unit. The valve core and the retaining ring cooperate to close the second gas passage. The retaining ring controls the movement position of the valve core, preventing it from dislodging from the valve cavity and damaging the parts due to excessive movement. At the same time, the cooperation between the valve core and the retaining ring further improves the sealing performance.

[0026] Preferably, a limiting structure is provided on the inner peripheral wall of the valve cavity, and the outer peripheral wall of the retaining ring is engaged within the limiting structure.

[0027] In this solution, a limiting structure is set to limit the position of the retaining ring, so as to prevent the retaining ring from shifting due to the influence of gas flow or valve core collision, which would lead to improper fit between the valve core and the retaining ring and gas leakage in the second gas passage, thus improving the stability of the fit between the valve core and the retaining ring.

[0028] Preferably, the first gas passage is connected to the inner ring mixing chamber, and the second gas passage is connected to the middle ring mixing chamber;

[0029] The gas stove also includes a burner cap, which is located above the mixing chamber. The burner cap has an inner ring burner hole and a middle ring burner hole. The inner ring burner hole communicates with the inner ring mixing chamber, and the middle ring burner hole communicates with the middle ring mixing chamber. The axis of the inner ring burner hole is parallel to the vertical direction, and the middle ring burner hole is inclined upward from the radial inner side of the burner cap to the radial outer side of the burner cap.

[0030] In this design, the switching between normal cooking mode and inner ring stir-fry mode can be achieved by controlling the opening and closing of the regulating valve. The middle ring burner holes are arranged obliquely on the outside of the burner cap, producing a larger overall fire ring, but the flame is not dense, making it suitable for normal cooking. The inner ring burner holes are concentrated and extend vertically, resulting in a concentrated flame. With the heat output remaining constant, the local heat output is greater, making it suitable for inner ring stir-fry.

[0031] The significant advantages of this invention are as follows: the first and second gas passages of the regulating valve are respectively connected to two mixing chambers of different radial directions. Therefore, by opening or closing the regulating valve, it can be connected to different mixing chambers without adjusting the opening of the stopcock. The amount of gas flowing into the regulating valve remains unchanged, ensuring that the amount of gas flowing into different mixing chambers is the same, resulting in the same heat output. Users can switch the regulating valve to use different radial mixing chambers without experiencing changes in heat output, improving stability, expanding applicable cooking scenarios, and effectively enhancing the user experience. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the combustion stove structure in Embodiment 1 of this utility model;

[0033] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0034] Figure 3 This is a schematic diagram of the regulating valve structure in Embodiment 1 of this utility model;

[0035] Figure 4 This is a cross-sectional view of the regulating valve structure in Embodiment 1 of this utility model;

[0036] Figure 5 This is a schematic diagram showing the connection between the combustion stove components in Embodiment 1 of this utility model;

[0037] Figure 6 This is a cross-sectional view of the regulating valve structure in Embodiment 2 of this utility model;

[0038] Figure 7 This is a schematic diagram of the combustion stove structure in Embodiment 3 of this utility model;

[0039] Figure 8 for Figure 7 Enlarged structural diagram at point B;

[0040] Figure 9 This is a schematic diagram showing the connection between the combustion stove components in Embodiment 3 of this utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] Mixing chamber 100

[0043] Inner ring mixing chamber 110

[0044] Central Ring Mixing Chamber 120

[0045] Outer ring mixing chamber 130

[0046] Control valve 200

[0047] Gas intake passage 210

[0048] First gas passage 220

[0049] Connection Channel 221

[0050] Protrusion 222

[0051] Second gas passage 230

[0052] Valve chamber 240

[0053] Valve core 250

[0054] Valve stem 270

[0055] Drive Unit 280

[0056] 290 retaining ring

[0057] Limiting structure 291

[0058] Plug valve 300

[0059] First Exit Passage 310

[0060] Second Exit Passage 320

[0061] Fire cap 400

[0062] Inner ring fire cap 410

[0063] Outer ring fire cap 420

[0064] Inner ring fire hole 411

[0065] Central ring fire hole 412

[0066] Outer ring fire hole 421 Detailed Implementation

[0067] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0068] Example 1

[0069] In this embodiment, as Figure 1-5 As shown, a gas stove is provided, which includes a mixing chamber 100, a regulating valve 200 and a stop valve 300.

[0070] The mixing chamber 100 includes an inner ring mixing chamber 110, a middle ring mixing chamber 120 and an outer ring mixing chamber 130. The middle ring mixing chamber 120 is fitted around the outer periphery of the inner ring mixing chamber 110 and the outer ring mixing chamber 130 is fitted around the outer periphery of the middle ring mixing chamber 120.

[0071] The regulating valve 200 includes a valve body and a valve core 250. The valve body has a valve cavity 240, a gas intake passage 210, a first gas passage 220, and a second gas passage 230. All three passages are connected to the valve cavity 240. The gas intake passage 210 is connected to the first outlet passage 310 of the stopcock valve 300. The outer ring mixing chamber 130 is connected to the first gas passage 220, the middle ring mixing chamber 120 is connected to the second gas passage 230, and the inner ring mixing chamber 110 is connected to the second outlet passage 320 of the stopcock valve 300. The valve core 250 is located inside the valve cavity 240 and moves relative to the valve cavity 240 to switch the regulating valve 200 between a first state and a second state.

[0072] In the first state, the gas intake passage 210 is connected to the first gas passage 220, but not to the second gas passage 230. That is, the regulating valve 200 is connected to the outer ring mixing chamber 130, but not to the middle ring mixing chamber 120.

[0073] In the second state, the gas intake passage 210 is connected to the second gas passage 230, but not to the first gas passage 220. That is, the regulating valve 200 is connected to the middle ring mixing chamber 120, but not to the outer ring mixing chamber 130.

[0074] The first gas passage 220 and the second gas passage 230 of the regulating valve 200 are respectively connected to two mixing chambers 100 with different radial directions. Therefore, by opening or closing the regulating valve 200, it can be connected to different mixing chambers 100 without adjusting the opening of the stopcock valve 300. The amount of gas flowing into the regulating valve 200 remains unchanged, resulting in the same amount of gas flowing into different mixing chambers 100 and producing the same heat. When users switch the regulating valve 200 to use different radial mixing chambers 100, there will be no change in heat, improving stability, expanding applicable cooking scenarios, and effectively enhancing the user experience.

[0075] In other embodiments, the gas intake passage 210 may be connected to the second outlet passage 320 of the plug valve 300, the inner ring mixing chamber 110 may be connected to the first gas passage 220, the middle ring mixing chamber 120 may be connected to the second gas passage 230, and the outer ring mixing chamber 130 may be connected to the first outlet passage 310 of the plug valve 300.

[0076] Among them, such as Figure 2-4 As shown, the gas intake passage 210 is located between the first gas passage 220 and the second gas passage 230 in the moving direction of the valve core 250. The first gas passage 220 and the gas intake passage 210 are spaced apart along the moving direction of the valve core 250. This embodiment provides a method to achieve that the gas intake passage 210 is only connected to the first gas passage 220 and the second gas passage 230, and the overall layout is relatively simple. When the valve core 250 moves between the first gas passage 220 and the gas intake passage 210, the gas intake passage 210 is connected to the second gas passage 230; when the valve core 250 moves between the second gas passage 230 and the gas intake passage 210, the gas intake passage 210 is connected to the first gas passage 220.

[0077] Furthermore, the gas inlet channel 210 is located on one side of the valve chamber 240, while the first gas channel 220 and the second gas channel 230 are located on the other side of the valve chamber 240. The gas inlet channel 210, the first gas channel 220, and the second gas channel 230 are positioned on opposite sides of the valve chamber 240, ensuring a smooth flow of gas after it enters the regulating valve 200. This reduces the number of turns and other obstructions in the gas flow, avoiding unnecessary resistance and shortening the gas flow path, allowing the regulating valve 200 to supply gas to the mixing chamber 100 more quickly. It also shortens the size of the regulating valve 200 in the direction of movement of the valve core 250. In other embodiments, the positional relationship between the gas inlet channel 210, the first gas channel 220, and the second gas channel 230 is not specifically limited, as long as they cooperate with the valve chamber 240 and the valve core 250 without affecting the normal flow of gas.

[0078] In other alternative embodiments, the gas intake passage 210, the first gas passage 220 and the second gas passage 230 may be located on the same side of the valve chamber 240, or one of the first gas passage 220 and the second gas passage 230 may be located on one side of the valve chamber 240 along with the gas intake passage 210, and the other of the first gas passage 220 and the second gas passage 230 may be located on the other side of the valve chamber 240.

[0079] In this embodiment, along the moving direction of the valve core 250, the inner diameter of the valve cavity 240 gradually decreases from the first gas passage 220 toward the second gas passage 230. The inner diameter of the valve cavity 240 on the side closer to the first gas passage 220 is larger than the diameter of the valve core 250, and the inner diameter of the valve cavity 240 on the side closer to the second gas passage 230 is less than or equal to the diameter of the valve core 250. When the regulating valve 200 switches from the second state to the first state, the valve core 250 moves toward the second gas passage 230 until a radial seal is achieved between the valve cavity 240 and the valve core 250. The movement of the valve core 250 can open or close either the first gas passage 220 or the second gas passage 230. When the valve core 250 moves to the side of the second gas passage 230, the second gas passage 230 is closed, and the gas intake passage 210 and the first gas passage 220 are connected. As the inner diameter of the valve cavity 240 gradually decreases, the resistance to the movement of the valve core 250 within the valve cavity 240 is small, facilitating rapid movement of the valve core 250 to switch the state of the regulating valve 200. When the valve core 250 approaches the second gas passage 230, it seals with the valve cavity 240 and also acts as a limit, preventing the valve core 250 from moving further after reaching the inlet of the second gas passage 230. In this embodiment, the second gas passage 230 is closed by a radial seal between the valve core 250 and the valve cavity 240. In other embodiments, other structures can be provided to cooperate with the valve core 250 to control the opening and closing of the second gas passage 230.

[0080] In other embodiments, the inner diameter of the valve cavity 240 may be the same as the diameter of the valve core 250. During the movement of the valve core 250, the valve cavity 240 and the valve core 250 always maintain a sealed state, resulting in good sealing performance.

[0081] Furthermore, in this embodiment, the peripheral surface of the valve core 250 that contacts the valve cavity 240 is a plane. In other embodiments, the peripheral surface of the valve core 250 that contacts the valve cavity 240 is an arc surface, with the arc surface convex in a direction away from the valve core 250. Setting the peripheral surface of the valve core 250 as an arc surface reduces the contact area between the valve core 250 and the valve cavity 240, thereby reducing the resistance to the movement of the valve core 250 in the valve cavity 240 without affecting its sealing performance. In other embodiments, the structure of the peripheral surface of the valve core 250 is not specifically limited, as long as it can seal with the inner wall of the valve cavity 240.

[0082] In this embodiment, the extension direction of the first gas passage 220 is perpendicular to the movement direction of the valve core 250. The regulating valve 200 also includes a connecting passage 221, the two ends of which are respectively connected to the first gas passage 220 and the valve cavity 240. The extension direction of the connecting passage 221 is parallel to the movement direction of the valve core 250. When the regulating valve 200 is in the first state, the valve core 250 closes the port at the end of the connecting passage 221 that is connected to the valve cavity 240.

[0083] By setting up a connection channel 221 to connect the first gas passage 220 and the valve chamber 240, the movement path of the valve core 250 is shortened, allowing the valve core 250 to move into position more quickly during the switching process, thus improving the switching efficiency. Moreover, the movement direction of the valve core 250 is the same as the extension direction of the connection channel 221, and the valve core 250 can directly seal the port of the connection channel 221, making the cooperation between the valve core 250 and the connection channel 221 more convenient.

[0084] Specifically, such as Figure 4 As shown, the regulating valve 200 also includes an annular protrusion 222, which extends from the inner wall of the connecting channel 221 into the valve cavity 240. The valve core 250 can abut against the end of the protrusion 222 away from the connecting channel 221. This arrangement can further shorten the movement path of the valve core 250, improve the switching efficiency of the regulating valve 200, and allow users to quickly switch between different diameter sparklers according to their needs, effectively improving the user experience.

[0085] Example 2

[0086] The gas stove and regulating valve 200 in this embodiment are basically the same as those in embodiment 1, except that:

[0087] In this embodiment, as Figure 6As shown, the regulating valve 200 also includes a drive unit 280, a valve stem 270, and a retaining ring 290. The valve core 250 and the drive unit 280 are respectively disposed on both sides of the retaining ring 290 in the moving direction of the valve core 250. One end of the valve stem 270 is connected to the valve core 250, and the other end of the valve stem 270 passes through the retaining ring 290 and is connected to the drive unit 280. When the regulating valve 200 is in the second state, the retaining ring 290 abuts against the valve core 250 on one side facing the valve core 250 in the moving direction of the valve core 250.

[0088] Firstly, the valve stem 270 connects the valve core 250 and the drive unit 280. The valve core 250 moves within the valve cavity 240 via the drive unit 280. During its movement, the valve core 250 can cooperate with the retaining ring 290. The retaining ring 290 controls the movement position of the valve core 250, preventing it from moving excessively and dislodging from the valve cavity 240, thus damaging the parts. At the same time, the cooperation between the valve core 250 and the retaining ring 290 further improves the sealing performance.

[0089] Secondly, the second gas passage 230 communicates with the valve cavity 240 through a through hole on the retaining ring 290. When the retaining ring 290 abuts against one side of the valve core 250, the second gas passage 230 can be sealed. This process does not require the side wall of the valve core 250 to abut against the valve cavity 240, reducing the resistance of the valve core 250 moving within the valve cavity 240 and effectively preventing wear on the valve core 250. In other embodiments, the retaining ring 290 can be designed with other structures, as long as it does not affect the fit between the valve core 250 and the valve stem 270.

[0090] Furthermore, a limiting structure 291 is provided on the side wall of the second gas passage 230 leading to the valve chamber 240, and the outer peripheral side wall of the retaining ring 290 is engaged within the limiting structure 291. In this embodiment, the limiting structure 291 is provided to limit the retaining ring 290, preventing the retaining ring 290 from shifting due to the influence of gas flow or collision with the valve core 250, which could lead to improper fit between the valve core 250 and the retaining ring 290 and leakage in the second gas passage 230. This improves the stability of the fit between the valve core 250 and the retaining ring 290.

[0091] Specifically, in this embodiment, the limiting structure 291 is designed as an annular groove to hold the retaining ring 290. The structure is simple and does not occupy extra volume. In other embodiments, the limiting structure 291 can also be designed as other structures, as long as it can limit the retaining ring 290.

[0092] Example 3

[0093] The gas stove and regulating valve 200 in this embodiment are basically the same as those in embodiment 1, except that:

[0094] In this embodiment, as Figure 7-9As shown, the gas stove also includes a burner cap 400, which is located above the mixing chamber 100. The burner cap 400 is provided with an inner ring burner hole 411, a middle ring burner hole 412 and an outer ring burner hole 421. The inner ring burner hole 411 is connected to the inner ring mixing chamber 110, the middle ring burner hole 412 is connected to the middle ring mixing chamber 120 and the outer ring burner hole is connected to the outer ring mixing chamber 130.

[0095] Specifically, the flame cover 400 includes an inner ring flame cover 400 and an outer ring flame cover 400. The inner ring flame hole 411 and the middle ring flame hole 412 are both provided on the inner ring flame cover 400, and the outer ring flame hole 421 is provided on the outer ring flame cover 400. The inner ring flame hole 411 is provided on the upper side wall of the inner ring flame cover 400, and the middle ring flame cover 400 is provided on the peripheral side wall of the inner ring flame cover 400. The axis of the inner ring flame hole 411 is parallel to the vertical direction, and the middle ring flame hole 412 is inclined upward from the radial inner side to the radial outer side of the flame cover 400.

[0096] In this embodiment, the gas intake passage 210 is connected to the second outlet passage 320 of the plug valve 300, the inner ring mixing chamber 110 is connected to the first gas passage 220, the middle ring mixing chamber 120 is connected to the second gas passage 230, and the outer ring mixing chamber 130 is connected to the first outlet passage 310 of the plug valve 300.

[0097] In the first state, the regulating valve 200 is connected to the first gas passage 220, but not to the second gas passage 230. That is, the regulating valve 200 is connected to the middle ring mixing chamber 120, but not to the inner ring mixing chamber 110.

[0098] In the second state, the gas intake passage 210 is connected to the second gas passage 230, but not to the first gas passage 220. That is, the regulating valve 200 is connected to the inner ring mixing chamber 110, but not to the middle ring mixing chamber 120.

[0099] The gas supply to the inner ring mixing chamber 110 and the middle ring mixing chamber 120 remains unchanged by the regulating valve. Therefore, the firepower of the inner and middle ring flames does not change, the stability is improved, the applicable cooking scenarios are expanded, and the user experience is effectively enhanced.

[0100] In addition to adjusting the middle ring flame to a smaller ring flame without changing the heat level, the regulating valve in this embodiment can also be used as a stir-fry valve. Switching between normal cooking mode and inner ring stir-fry mode can be achieved by controlling the opening and closing of the regulating valve 200. The middle ring flame holes 412 are arranged obliquely on the outside of the burner cap 400, producing a larger overall flame ring, but the flame is not dense, suitable for normal cooking. The inner ring flame holes 411 are concentrated and extend vertically, making the flame holes more concentrated and the flame more focused. With the heat level unchanged, the local heat is greater, suitable for inner ring stir-frying.

[0101] In this embodiment, both the inner ring flame hole 411 and the middle ring flame hole 412 are integrated onto a single flame cap 400. In other embodiments, the flame cap 400 may further include a middle ring flame cap 400, with the middle ring flame hole 412 disposed on the middle ring flame cap 400.

[0102] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gas stove comprising a gas mixing chamber, a regulating valve and a cock valve; the gas mixing chamber comprises an inner ring gas mixing chamber, a middle ring gas mixing chamber and an outer ring gas mixing chamber, the middle ring gas mixing chamber is sleeved on the outer periphery of the inner ring gas mixing chamber, and the outer ring gas mixing chamber is sleeved on the outer periphery of the middle ring gas mixing chamber, characterized in that, The regulating valve includes a gas inlet channel, a first gas channel, and a second gas channel. The gas inlet channel is connected to the plug valve. The first gas channel and the second gas channel are respectively connected to two radially adjacent mixing chambers of the mixing chamber. The regulating valve includes a valve cavity and a valve core. The gas inlet channel, the first gas channel, and the second gas channel are respectively connected to the valve cavity. The valve core is disposed inside the valve cavity and moves relative to the valve cavity to switch the regulating valve between a first state and a second state. In the first state, the gas intake passage is connected to the first gas passage, and the gas intake passage is not connected to the second gas passage; In the second state, the gas intake channel is connected to the second gas channel, and the gas intake channel is not connected to the first gas channel.

2. Gas hob according to claim 1, characterized in that The gas intake channel is located between the first gas channel and the second gas channel in the moving direction of the valve core. The first gas channel and the gas intake channel are spaced apart along the moving direction of the valve core.

3. The gas hob as claimed in claim 2, characterized in that The gas intake passage is located on one side of the valve chamber, and the first gas passage and the second gas passage are located on the other side of the valve chamber.

4. The gas hob according to claim 2, characterized in that The extension direction of the first gas passage is perpendicular to the movement direction of the valve core. The regulating valve also includes a connecting passage, the two ends of which are respectively connected to the first gas passage and the valve chamber. The extension direction of the connecting passage is parallel to the movement direction of the valve core. When the regulating valve is in the first state, the valve core closes the port at the end of the connecting channel that communicates with the valve cavity.

5. The gas hob according to claim 4, characterized in that The regulating valve also includes an annular protrusion that extends from the inner wall of the connecting channel into the interior of the valve cavity, and the valve core is capable of abutting against the end of the protrusion away from the connecting channel.

6. The gas stove as described in claim 4, characterized in that, The inner diameter of the valve cavity is the same as the diameter of the valve core; and / or, along the moving direction of the valve core, the inner diameter of the valve cavity gradually decreases from the first gas passage toward the second gas passage, the inner diameter of the valve cavity on the side closer to the first gas passage is greater than the diameter of the valve core, and the inner diameter of the valve cavity on the side closer to the second gas passage is less than or equal to the diameter of the valve core.

7. The gas hob according to claim 6, characterized in that The peripheral surface of the valve core that contacts the valve cavity is an arc surface, and the arc surface protrudes in a direction away from the valve core.

8. The gas hob according to claim 1, characterized in that The regulating valve further includes a drive unit, a valve stem, and a retaining ring. The valve core and the drive unit are respectively disposed on both sides of the retaining ring in the direction of movement of the valve core. One end of the valve stem is connected to the valve core, and the other end of the valve stem passes through the retaining ring and is connected to the drive unit. When the regulating valve is in the second state, the retaining ring abuts against one side of the valve core in the direction of movement of the valve core.

9. The gas hob according to claim 8, characterized in that A limiting structure is provided on the inner peripheral wall of the valve cavity, and the outer peripheral wall of the retaining ring is engaged within the limiting structure.

10. The gas hob according to claim 1, characterized in that The first gas passage is connected to the inner ring mixing chamber, and the second gas passage is connected to the middle ring mixing chamber; The gas stove also includes a burner cap, which is located above the mixing chamber. The burner cap has an inner ring burner hole and a middle ring burner hole. The inner ring burner hole communicates with the inner ring mixing chamber, and the middle ring burner hole communicates with the middle ring mixing chamber. The axis of the inner ring burner hole is parallel to the vertical direction, and the middle ring burner hole is inclined upward from the radial inner side of the burner cap to the radial outer side of the burner cap.

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