Gas stove and method for adjusting fire power state of gas stove

Abstract

The present invention provides a gas stove and a method for adjusting the fire power of a gas stove. The gas stove includes: a burner including a base and a fire cover, the fire cover being provided with a plurality of fire holes, and the base being provided with a plurality of shielding teeth; a gas valve assembly disposed on an air inlet pipe of the burner; and an adjustment mechanism connected to the fire cover. When the gas valve assembly is actuated, the adjustment mechanism is driven to move between a first position and a second position, so that the fire cover can be rotated until the fire holes are at least partially shielded by the shielding teeth. The adjustment mechanism is linked with the gas valve assembly and the fire cover, and when the gas stove is adjusted to a low-fire state, some of the fire holes in the fire cover are automatically closed, thereby improving the thermal intensity of the fire holes in the low-fire state and resolving defects such as poor stability, easy flameout, and flashback in the low-fire state. This improves the fire power adjustment range of the gas stove and enhances the applicability of the gas stove.

Description

Technical Field

[0001] The present invention relates to the technical field of gas stoves, and in particular to a gas stove and a method for adjusting the firepower state of the gas stove. Background Art

[0002] Gas stoves are kitchen appliances that burn gas to release heat for home cooking. Due to varying heat requirements for cooking, most gas stoves feature a power adjustment function. However, when the power is set to a low setting, the reduced gas flow and heat intensity of the flame holes decrease, making the stove unstable and prone to flameout and flashback. This forces manufacturers to restrict the power adjustment range, preventing it from being adjusted to a low setting. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect of the existing technology that the firepower adjustment range is small, thereby providing a gas stove with an increased firepower adjustment range.

[0004] In order to solve the above technical problems, the present invention provides a gas stove, comprising: a burner, including a base and a fire cover, the fire cover is provided with a plurality of fire holes, and the base is provided with a plurality of shielding teeth; a gas valve group is provided on the air intake pipe of the burner; an adjusting mechanism is connected to the fire cover, and when the gas valve group is actuated, the adjusting mechanism drives the fire cover to rotate until the fire holes are at least partially shielded by the shielding teeth or avoid the shielding teeth.

[0005] Optionally, the gas valve group includes a valve stem, and the adjusting mechanism includes: a linkage rod, one end of which is connected to the fire cover, and the other end of the linkage rod is provided with a contact portion; a toggle portion, which is provided on the valve stem, so that when the toggle portion and the valve stem rotate synchronously, the contact portion can be driven to drive the linkage rod to drive the fire cover to rotate.

[0006] Optionally, the contact portion is slidably connected to the toggle portion, so that when the toggle portion rotates forward, the contact portion slides along the outer wall of the toggle portion toward the valve stem, and when the toggle portion rotates backward, the contact portion slides along the outer wall of the toggle portion toward the valve stem.

[0007] Optionally, the gas stove further includes a bottom shell, which is provided with a mounting hole, and the linkage rod includes: a rotating rod, one end of which is connected to the fire cover, and the other end of the rotating rod is rotatably connected to the mounting hole; a connecting rod, one end of which is connected to the rotating rod; wherein the other end of the connecting rod is provided with the contact portion.

[0008] Optionally, the connecting rod is slidably connected to the bottom shell.

[0009] Optionally, a sliding rod is provided on the connecting rod, and a sliding groove is provided on the bottom shell. The sliding rod is slidably connected to the sliding groove, so that when the sliding rod slides between the first position and the second position, the rotating rod is driven to rotate through the connecting rod.

[0010] Optionally, the sliding rod passes through the sliding groove, and a limiting component suitable for axial limiting is provided on the sliding rod.

[0011] Optionally, the limiting assembly includes: a pressure plate, which is provided on the sliding rod; a locking member, which is provided on the sliding rod, and the locking member and the pressure plate are located on opposite sides of the sliding groove.

[0012] Optionally, the linkage rod further includes: a reset element, one end of which is connected to the rotating rod, and the other end of which is connected to the bottom shell.

[0013] Optionally, the reset element includes an elastic member, the elastic member is sleeved on the rotating rod, and the elastic member is connected to the connecting rod.

[0014] Optionally, a protrusion is provided on the outer periphery of the top of the rotating rod, and a connecting hole and a limiting groove interconnected with the connecting hole are provided in the fire cover, and the limiting groove is adapted to the protrusion.

[0015] Optionally, the connecting rod includes a first rod body, a second rod body, a third rod body and a fourth rod body connected in sequence, the third rod body and the first rod body are located on the same side of the second rod body, and the fourth rod body and the second rod body are located on two pairs of sides of the third rod body, so that an angle is formed between the second rod body and the third rod body, and between the fourth rod body and the third rod body.

[0016] Optionally, the contact portion is in a rod-shaped structure, the toggle portion is in a sheet-shaped structure, and the circumferential surface of the contact portion is suitable for being slidably connected to an outer side wall of the toggle portion.

[0017] Optionally, the number of the blocking teeth corresponds to the number of the fire holes.

[0018] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect of the existing technology that the firepower adjustment range is small, thereby providing a firepower state adjustment method for a gas stove that can increase the firepower adjustment range.

[0019] In order to solve the above technical problems, the present invention provides a method for adjusting the fire power status of a gas stove, including: the gas valve group obtains a fire power adjustment signal; the gas valve group drives the adjustment mechanism to rotate the fire cover according to the fire power adjustment signal, so that part of the fire hole is blocked by the blocking teeth or avoids the blocking teeth.

[0020] The technical solution of the present invention has the following advantages:

[0021] 1. The gas stove provided by the present invention utilizes an adjustment mechanism linked to the gas valve assembly and the flame cover. When the gas stove is set to low power, it automatically closes some of the flame outlets in the flame cover. This improves the thermal intensity of the flame outlets in low power mode, resolving drawbacks such as poor stability, flameout, and flashback in low power mode. This also extends the gas stove's power adjustment range and improves its applicability.

[0022] 2. The gas stove provided by the present invention is slidably connected to the bottom shell via a linkage rod, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of a partial three-dimensional structure of a gas stove provided in one embodiment of the present invention;

[0025] Figure 2 for Figure 1 A in the figure shows the enlarged structural diagram;

[0026] Figure 3 for Figure 2 The embodiment shown is an enlarged structural schematic diagram showing that the fire hole of the fire cover of the gas stove is in a state of being blocked by the blocking teeth.

[0027] Figure 4 A schematic diagram of a partial three-dimensional structure of a display adjustment mechanism of a gas stove provided in one embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a partial three-dimensional structure of a gas stove provided in another embodiment of the present invention;

[0029] Figure 6 for Figure 5 Schematic diagram of the local three-dimensional structure;

[0030] Figure 7 A schematic diagram of the three-dimensional structure of a gas stove fire cover provided in one embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the three-dimensional structure of a gas valve group of a gas stove provided in one embodiment of the present invention;

[0032] Figure 9A schematic top view of a gas stove according to an embodiment of the present invention;

[0033] Figure 10 A schematic diagram of the three-dimensional structure of a gas stove provided in one embodiment of the present invention;

[0034] Figure 11 This is a flow chart of a method for adjusting the firepower state of a gas stove provided in yet another embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1- bottom shell; 2- gas valve group; 3- regulating mechanism; 4- burner;

[0037] 11-Mounting hole; 12-Sliding slot;

[0038] 21-valve stem;

[0039] 31-switching part; 32-linking rod;

[0040] 321 - rotating rod; 322 - reset element; 323 - connecting rod; 324 - contact portion;

[0041] 325-sliding rod; 326-pressing plate; 327-locking member;

[0042] 3211-protrusion;

[0043] 3231 - first rod; 3232 - second rod; 3233 - third rod; 3234 - fourth rod;

[0044] 41-fire cover; 42-base;

[0045] 411-fire hole; 412-connection hole;

[0046] 421-Obstruction tooth. DETAILED DESCRIPTION

[0047] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0050] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0051] Example 1

[0052] like Figure 1 As shown, a gas stove includes: a burner 4, a gas valve group 2 and an adjusting mechanism 3. The burner 4 includes a base 42 and a fire cover 41. The fire cover 41 is provided with a plurality of fire holes 411. The base 42 is provided with a plurality of shielding teeth 421. The gas valve group 2 is provided on the air intake pipe of the burner 4. The gas valve group 2 is suitable for adjusting the air intake amount of the burner 4. The adjusting mechanism 3 is connected to the fire cover 41. When the gas valve group 2 is actuated, the adjusting mechanism 3 is controlled to drive the fire cover 41 to rotate until the fire hole 411 is at least partially shielded by the shielding teeth 421 or avoids the shielding teeth 421.

[0053] like Figure 2As shown, the above-mentioned fire cover 41 is located above the base 42, and the fire hole 411 is provided on the annular side wall of the fire cover 41. There is a small gap between the annular side wall of the fire cover 41 and the shielding teeth 421, which can avoid the fire cover 41 from interfering with the shielding teeth 421 during rotation. When the gas valve group 2 is in operation, the regulating mechanism 3 can be controlled to drive the fire cover 41 to rotate around the axis of the fire cover. During the rotation of the fire cover 41, the fire hole 411 rotates synchronously with the fire cover 41, wherein the fire hole 411 can be rotated to at least partially overlap or completely not overlap with the projection of the shielding tooth 421 on the cross section of the fire hole 411. wherein, when the fire hole 411 and the projection of the shielding tooth 421 on the cross section of the fire hole 411 at least partially overlap, the fire hole 411 is at least partially blocked by the shielding tooth 421, thereby reducing the fire area of the fire hole 411, so that when the gas flow rate decreases, the fire area of the fire hole 411 is also reduced synchronously, thereby ensuring the thermal intensity of the fire hole 411, ensuring the stability of the gas stove in a low-fire state, avoiding the occurrence of easy flameout and backfire, improving the firepower adjustment range of the gas stove, and improving the applicability of the gas stove.

[0054] When the fire hole 411 and the fire cover 41 rotate synchronously in opposite directions, and the fire hole 411 rotates until the projection of the blocking tooth 421 on the cross section of the fire hole 411 does not overlap at all, the fire hole 411 can avoid the blocking tooth 421, so that the fire hole 411 can produce fire with a normal fire area. Figure 3 As shown, the cross section of the fire hole 411 is a cross section perpendicular to the central axis L of the fire hole 411 .

[0055] The position signal or the rotation angle signal of the valve stem 21 is detected, and the driving adjustment mechanism can be controlled according to the position signal or the rotation angle signal of the valve stem 21 .

[0056] Furthermore, the number of shielding teeth 421 corresponds to the number of fire holes 411, so that the fire output of the fire holes 411 is more balanced.

[0057] Furthermore, if Figure 4 As shown, the gas valve group 2 includes a valve stem 21, and the regulating mechanism 3 includes: a toggle part 31 and a linkage rod 32, one end of the linkage rod 32 is connected to the fire cover 41, and the other end of the linkage rod 32 is provided with a contact part 324, and the toggle part 31 is provided on the valve stem 21, so that when the toggle part 31 and the valve stem 21 rotate synchronously, the contact part 324 can be driven to drive the linkage rod 32 to drive the fire cover 41 to rotate.

[0058] The above-mentioned toggle part 31 is connected to the valve stem 21, so that the toggle part 31 can rotate synchronously with the valve stem 21. The area covered by the toggle part 31 during the rotation process forms a rotation area, and the contact part 324 is located in the rotation area. Since the contact part 324 is located in the rotation area, the toggle part 31 can contact the contact part 324 during the rotation process, thereby driving the contact part 324 to drive the linkage rod 32 to change its displacement, so that the linkage rod 32 can drive the fire cover 41 to rotate. The structure is simple and reliable.

[0059] The valve stem 21 is a regulating valve stem with a flat position. Therefore, the toggle portion 31 has a groove structure adapted to the valve stem 21 with a flat position. Specifically, Figure 8 As shown, the flat position of the valve stem 21 makes the cross section of the valve stem 21 D-shaped, so that the groove structure is also D-shaped, which can ensure that the toggle portion 31 and the valve stem 21 rotate synchronously.

[0060] Specifically, the contact portion 324 is slidably connected to the toggle portion 31, so that when the toggle portion 31 rotates forward, the contact portion 324 slides along the outer wall of the toggle portion 31 toward the valve stem 21, and when the toggle portion 31 rotates backward, the contact portion 324 slides along the outer wall of the toggle portion 31 toward the valve stem 21. The outer wall of the toggle portion 31 that contacts the contact portion 324 is a plane. When the toggle portion 31 rotates, the outer wall of the toggle portion 31 can generate a driving force on the contact portion 324, thereby pushing the contact portion 324 to slide along the outer wall of the toggle portion 31. Forward rotation is clockwise rotation, and reverse rotation is counterclockwise rotation. As an alternative embodiment, forward rotation is counterclockwise rotation, and reverse rotation is clockwise rotation.

[0061] Furthermore, if Figure 5 and Figure 6 As shown, the gas stove also includes a bottom shell 1, which is provided with a mounting hole 11, and the linkage rod 32 includes: a rotating rod 321 and a connecting rod 323, one end of the rotating rod 321 is connected to the fire cover 41, and the other end of the rotating rod 321 is rotatably connected to the mounting hole 11; one end of the connecting rod 323 is connected to the rotating rod 321, wherein the other end of the connecting rod 323 is provided with a contact portion 324.

[0062] The connecting rod 323 can be configured as four rods connected into one body, that is, the connecting rod 323 includes a first rod 3231, a second rod 3232, a third rod 3233, and a fourth rod 3234, wherein one end of the first rod 3231 is connected to the rotating rod 321, the second rod 3232 is connected to the first rod 3231, and the first rod 3231 and the second rod 3232 form an angle in the horizontal direction. The third rod 3233 and the second rod 3232 form an angle in the horizontal direction, and the third rod 3233 and the first rod 3231 are located on the same side of the second rod 3232, so that the first rod 3231, the second rod 3232, and the third rod 3233 form a U-shape, and the fourth rod 3234 and the third rod 3233 form an angle in the horizontal direction, and the fourth rod 3234 and the second rod 3232 are located on two opposite sides of the third rod 3233. , so that the second rod body 3232, the third rod body 3233 and the fourth rod body 3234 form a Z shape, which can fully utilize the space in the shell 1 and the overall structure is compact. The second rod body 3232, the third rod body 3233 and the fourth rod body 3234 can be integrally formed, and the contact portion 324 is provided at the end of the fourth rod body and extends upward, so that the contact portion 324 can contact the side wall of the toggle portion 31 without being separated, thereby ensuring the linkage between the contact portion 324 and the toggle portion 31.

[0063] Specifically, the contact portion 324 is a rod-shaped structure, the toggle portion 31 is a sheet-shaped structure, and the circumferential surface of the contact portion 324 is suitable for sliding connection with an outer side wall of the toggle portion 31. The contact portion 324 is a rod-shaped structure, which simplifies the process and saves costs.

[0064] Furthermore, the connecting rod 323 is slidably connected to the bottom shell 1 , so that the connecting rod 323 moves more smoothly, thereby achieving the purpose of more accurately controlling the rotation angle of the rotating rod 321 .

[0065] Furthermore, if Figure 6 As shown, a sliding rod 325 is provided on the connecting rod 323, and a sliding groove 12 is provided on the bottom shell 1. The sliding rod 325 is slidably connected to the sliding groove 12, so that when the sliding rod 325 slides between the first position and the second position, the rotating rod 321 is driven to rotate through the connecting rod 323.

[0066] The sliding rod 325 also supports the connecting rod 323. The sliding groove 12 is long and has two inner sidewalls in the longitudinal direction forming two opposite limiting portions. When the sliding rod 325 slides to the inner sidewall of the sliding groove 12 away from the rotating rod 321, the sliding rod 325 is in the first position. When the sliding rod 325 slides to the inner sidewall of the sliding groove 12 close to the rotating rod 321, the sliding rod 325 is in the second position. The sliding rod 325 slides in the sliding groove 12, making the connecting rod 323 more stable during movement. The sliding rod 325 can reciprocate between the first position and the second position along the sliding groove 12 on the bottom shell 1. In the process of sliding from the first position to the second position, the sliding rod 325 can drive the rotating rod 321 to rotate through the connecting rod 323, so that the fire hole 411 of the fire cover 41 can be partially shielded by the shielding teeth 421. When the sliding rod 325 slides from the second position to the first position, the connecting rod 323 can drive the rotating rod 321 to rotate, so that the fire hole 411 of the fire cover 41 avoids the blocking teeth 421.

[0067] More specifically, when the sliding rod 325 slides from the first position to the second position, the sliding rod 325 drives the rotating rod 321 to rotate forwardly via the connecting rod 323. When the sliding rod 325 slides from the second position to the first position, the sliding rod 325 drives the rotating rod 321 to rotate backwardly via the connecting rod 323. When the user needs to adjust the heat from high to low, the user rotates the valve stem 21 in the opposite direction, thereby driving the toggle portion 31 to rotate in the opposite direction. The toggle portion 31 forms a rotation area with the valve stem 21 as the axis. Since the contact portion 324 is slidingly connected to the side wall of the toggle portion 31, when the toggle portion 31 rotates in the opposite direction, the contact portion 324 slides along the side wall of the toggle portion 31 in the direction away from the valve stem 21, and the sliding rod 325 on the connecting rod 323 slides along the sliding groove 12 in the direction away from the valve stem 21, thereby driving the rotating rod 321 connected to the connecting rod 323 to rotate forward, so that the fire cover 41 connected to the rotating rod 321 also rotates in the opposite direction synchronously. At this time, the fire hole 411 on the fire cover changes from avoiding the blocking teeth 421 to being at least partially blocked by the blocking teeth 421, or the fire hole 411 on the fire cover 41 is partially blocked by the blocking teeth 421 to being completely blocked by the blocking teeth 421, that is, the fire area of the fire hole 411 gradually decreases.

[0068] Specifically, the sliding rod 325 passes through the sliding groove 12, and a limiting component suitable for axial limiting is provided on the sliding rod 325 to limit the axial movement of the sliding rod 325, so that the sliding rod 325 can slide more smoothly between the first position and the second position, thereby ensuring the stability of the rotation of the rotating rod 321 during the rotation process.

[0069] Furthermore, if Figure 6As shown, the limiting assembly includes a pressure plate 326 and a locking member 327. The pressure plate 326 is disposed on the sliding rod 325, and the locking member 327 is disposed on the sliding rod 325. The locking member 327 and the pressure plate 326 are located on opposite sides of the sliding groove 12, forming an axial limit for the sliding rod 325. The pressure plate 326 is located above the sliding groove 12 and contacts the housing 1, while the locking member 327 is located below the sliding groove 12 and contacts the housing 1. The locking member 327 may include a locking nut, wherein the sliding rod 325 is provided with an external thread, so that the locking nut can lock the sliding rod 325.

[0070] Furthermore, the linkage rod 32 further includes: a reset element 322 , one end of the reset element 322 is connected to the rotating rod 321 , and the other end of the reset element 322 is connected to the bottom shell 1 , so that the rotating rod 321 can be automatically reset.

[0071] Furthermore, the reset element 322 includes an elastic member, which is sleeved on the rotating rod 321 and connected to the connecting rod 323 .

[0072] The elastic member can be a spring, such as a torsion spring. The reset element 322 is connected to the rotating rod 321 so that the reset element 322 moves synchronously with the rotating rod 321 due to the elastic force. The reset element 322 is also connected to the bottom shell 1 so that the reset element 322 can automatically reset itself during the deformation caused by the rotation of the rotating rod 321.

[0073] Specifically, when the valve stem 21 is operated to adjust the fire power to low power, the toggle portion 31 installed on the valve stem 21 pushes the contact portion 324, and then drives the sliding rod 325 of the linkage rod 32 to slide along the sliding groove 12, so that the sliding rod 325 moves to the second position. In the process of the sliding rod 325 moving to the second position, the linkage rod 32 drives the rotating rod 321 to rotate, and then the rotating rod 321 drives the fire cover 41 to rotate. At this time, the fire hole 411 of the fire cover 41 is partially blocked by the blocking teeth 421 on the base 42, so that the fire hole 411 of the fire cover 41 that can spray gas is reduced. When the valve stem 21 is operated to adjust the firepower back to high firepower, the toggle part 31 rotates in the opposite direction, so that the contact part 324 loses the driving force of the toggle part 31, and the linkage rod 32 is reset under the action of the elastic force of the reset element 322. During this process, the sliding rod 325 moves from the second position to the first position, and the linkage rod 32 drives the fire cover 41 to rotate in the opposite direction, indicating that the sliding rod 325 slides to the second position, then the linkage rod 32 and the fire cover 41 return to their original positions, so that the fire hole 411 avoids the blocking tooth 421, and thus the fire hole 411 of the fire cover 41 that can spray gas returns to normal.

[0074] Furthermore, if Figure 4 and Figure 7As shown, a protrusion 3211 is provided on the outer periphery of the top of the rotating rod 321 , and a connecting hole 412 and a limiting groove communicated with the connecting hole 412 are provided in the fire cover 41 , and the limiting groove is adapted to the protrusion 3211 .

[0075] The protrusions 3211 can be provided in two numbers, and the two protrusions 3211 are arranged opposite to each other, and correspondingly, the limiting grooves are also provided in two numbers. The protrusions 3211 are rectangular blocks, forming a flat position, so that the rotating rod 321 can more easily drive the fire cover 41 to rotate synchronously.

[0076] Furthermore, the shifting portion 31 has a sheet-like structure, so that the shifting portion 31 drives the contact portion 324 more smoothly.

[0077] Example 2

[0078] like Figure 11 As shown, a method for adjusting the fire power state of a gas stove includes:

[0079] Step S101: The gas valve group 2 obtains a fire power adjustment signal;

[0080] Step S103 : the gas valve group 2 drives the regulating mechanism 3 to rotate the fire cover 41 according to the fire power regulating signal, so that part of the fire holes 411 are shielded by the shielding teeth 421 or avoid the shielding teeth 421 .

[0081] like Figure 9 and Figure 10 As shown, taking the gas stove in Example 1 as an example, the fire power adjustment signal may include a position signal or a rotation angle signal of the valve stem 21. When the user operates the valve stem 21 of the gas valve assembly 2 to adjust the fire power to low, the toggle portion 31 mounted on the valve stem 21 rotates in the reverse direction, thereby pushing the contact portion 324 of the linkage lever 32. The linkage lever 32 drives the rotating lever 321 to rotate forward, and the rotating lever 321 drives the fire cover 41 to rotate in the reverse direction. At this time, the fire hole 411 of the fire cover 41 is partially blocked by the blocking teeth 421 of the base 42, reducing the area of the fire hole 411 of the fire cover 41. When the user adjusts the fire power back to high, the toggle portion 31 rotates forward, and the reset spring force of the reset element drives the adjustment mechanism 3 and the fire cover 41 to rotate in the reverse direction, causing the fire hole 411 to clear the blocking teeth 421, thereby returning the fire hole 411 of the fire cover 41 to its normal state.

[0082] When the gas stove is set to low power, some of the flame holes in the flame cover are automatically closed, solving the problems of poor stability, easy flameout, and flashback in low power conditions. This also increases the range of gas stove power adjustment and improves the applicability of the gas stove.

[0083] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A gas stove, characterized in that: include: The burner (4) comprises a base (42) and a fire cover (41), wherein the fire cover (41) is provided with a plurality of fire holes (411) in a ring, and the base (42) is provided with a plurality of shielding teeth (421) in a ring. A gas valve assembly (2) is provided on the air inlet pipe of the burner (4); An adjusting mechanism (3) is connected to the fire cover (41). When the gas valve group (2) is in operation, the adjusting mechanism (3) drives the fire cover (41) to rotate until the fire hole (411) is at least partially shielded by the shielding tooth (421) or avoids the shielding tooth (421). The gas valve group (2) includes a valve stem (21). The adjusting mechanism (3) includes: A linkage rod (32), one end of which is connected to the fire cover (41), and the other end of the linkage rod (32) is provided with a contact portion (324); The toggle portion (31) is provided on the valve stem (21), so that when the toggle portion (31) and the valve stem (21) rotate synchronously, the contact portion (324) can be driven to drive the linkage rod (32) to drive the fire cover (41) to rotate. The contact portion (324) is slidably connected to the toggle portion (31), so that when the toggle portion (31) rotates in the forward direction, the contact portion (324) slides along the outer wall of the toggle portion (31) in a direction close to the valve stem (21); when the toggle portion (31) rotates in the reverse direction, the contact portion (324) slides along the outer wall of the toggle portion (31) in a direction away from the valve stem (21). The toggle portion (31) further includes a bottom shell (1), wherein the bottom shell (1) is provided with a mounting hole (11). The linkage rod (32) includes: A rotating rod (321), one end of which is connected to the fire cover (41), and the other end of which is rotatably connected to the mounting hole (11); A connecting rod (323), one end of which is connected to the rotating rod (321); The other end of the connecting rod (323) is provided with the contact portion (324), and the fire cover (41) is an inner ring fire cover.

2. The gas stove according to claim 1, characterized in that: The connecting rod (323) is slidably connected to the bottom shell (1).

3. The gas stove according to claim 2, characterized in that: A sliding rod (325) is provided on the connecting rod (323), and a sliding groove (12) is provided on the bottom shell (1). The sliding rod (325) is slidably connected to the sliding groove (12), so that when the sliding rod (325) slides between the first position and the second position, the rotating rod (321) is driven to rotate through the connecting rod (323).

4. The gas stove according to claim 3, characterized in that: The sliding rod (325) passes through the sliding groove (12), and a limiting component suitable for axial limiting is provided on the sliding rod (325).

5. The gas stove according to claim 4, characterized in that: The limiting component includes: A pressing plate (326) is provided on the sliding rod (325); The locking member (327) is provided on the sliding rod (325), and the locking member (327) and the pressing plate (326) are located on opposite sides of the sliding groove (12).

6. The gas stove according to any one of claims 1 to 5, characterized in that: The linkage rod (32) further includes: A reset element (322) has one end connected to the rotating rod (321) and the other end connected to the bottom shell (1).

7. The gas stove according to claim 6, characterized in that: The resetting element (322) comprises an elastic member, the elastic member is sleeved on the rotating rod (321), and the elastic member is connected to the connecting rod (323).

8. The gas stove according to any one of claims 1 to 5, characterized in that: A protrusion (3211) is provided on the outer periphery of the top of the rotating rod (321), and a connecting hole (412) and a limiting groove communicating with the connecting hole (412) are provided in the fire cover (41), wherein the limiting groove is adapted to the protrusion (3211).

9. The gas stove according to any one of claims 1 to 5, characterized in that: The connecting rod (323) comprises a first rod (3231), a second rod (3232), a third rod (3233) and a fourth rod (3234) connected in sequence, wherein the third rod (3233) and the first rod (3231) are located on the same side of the second rod (3232), and the fourth rod (3234) and the second rod (3232) are located on two pairs of sides of the third rod (3233), so that an angle is formed between the second rod (3232) and the third rod (3233), and between the fourth rod (3234) and the third rod (3233).

10. The gas stove according to any one of claims 1 to 5, characterized in that: The contact portion (324) is a rod-shaped structure, the toggle portion (31) is a sheet-shaped structure, and the circumferential surface of the contact portion (324) is suitable for sliding connection with an outer side wall of the toggle portion (31).

11. The gas stove according to any one of claims 1 to 5, characterized in that: The number of the blocking teeth (421) corresponds to the number of the fire holes (411).

12. A method for adjusting the firepower state of a gas stove, implemented by the gas stove according to claim 1, characterized in that: include: The gas valve group (2) obtains a fire power adjustment signal; The gas valve group (2) drives the regulating mechanism (3) according to the fire power regulating signal to drive the fire cover (41) to rotate, so that part of the fire hole (411) is shielded by the shielding teeth (421) or avoids the shielding teeth (421).

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