Gas stove with anti-dry burning function

Abstract

The invention relates to a gas stove with an anti-dry burning function, comprising a stove panel, a bottom shell matched with the stove panel and a burner, wherein a temperature sensor is arranged at the center of the burner, and the invention is characterized in that: an air guide cylinder penetrating the center of the burner is also included, the temperature sensor is arranged in the air guide cylinder and a gap is left between the temperature sensor and the inner wall of the air guide cylinder, the upper and lower ends of the air guide cylinder are open, and the lower end of the air guide cylinder extends downward under the bottom shell. Compared with the prior art, the invention has the advantage that the air guide cylinder surrounding the lower end of the temperature sensor is arranged to avoid the influence of high-temperature smoke on the temperature sensor, wherein the tail of the temperature sensor containing the wire is arranged at the lower end of the air guide cylinder, and the lower end of the air guide cylinder partially extends out of the bottom shell of the gas stove, so that external air can be introduced into the air guide cylinder to maintain the tail of the temperature sensor containing the wire in a normal temperature state as much as possible, thereby playing a protective role.

Description

Technical Field

[0001] The invention relates to a gas stove, in particular to a gas stove capable of preventing dry burning. Background Art

[0002] Many existing stove burners are equipped with temperature sensors on the base. The temperature sensor can detect the temperature of the bottom of the pot in real time. The controller in the stove burner can control the stove according to the data measured by the temperature sensor, thereby effectively improving the utilization efficiency of the gas and accurately controlling the pot, thereby solving accidents such as overheating, sticking pot, dry pot and flameout. For example, the applicant has proposed a Chinese utility model patent "A stove burner with a temperature sensor" with patent number ZL201620835024.3 (authorization announcement number CN205939265U), which provides a mounting cavity for the temperature sensor to be installed in the center of the inner ring cavity of the base, and a cover plate is placed on the top of the mounting cavity, with a through hole in the center of the cover plate, and a first annular heat shield is provided above the cover plate, and the first heat shield is fixed to the cover plate, wherein the temperature sensor is arranged inside the mounting cavity and mounted on the sensor bracket, and the upper end of the temperature sensor passes through the through hole on the cover plate and extends upward to the first On the heat protection plate, the first heat protection plate can slow down the heat conducted from the base to the temperature sensor, and the gap between the first heat protection plate and the cover plate constitutes a secondary air replenishment channel connecting the external air and the inner ring cavity, which is used to replenish the secondary air of the burner fire cover. At the same time, the secondary air replenishment channel also serves as a smoke channel for the high-temperature smoke generated by the fire cover when burning to enter the inner ring cavity of the base, so that the temperature sensor is directly affected by the external high-temperature smoke and heat radiation. The temperature sensed by the temperature sensor changes relatively quickly, especially when the temperature rises rapidly, it is easily mistaken for a dry burning signal, which will bring inconvenience to the user when cooking.

[0003] Therefore, the applicant also provides a Chinese utility model patent with patent number ZL201721872406.4, "A temperature measuring device for a gas stove", which includes a temperature sensor and a support. A heat insulation cover is provided on the top periphery of the support to surround the temperature sensor, and the top of the temperature sensor is lower than the top of the heat insulation cover, ensuring that the temperature sensor can delay measuring the temperature of the bottom of the pot. However, the heat insulation cover only surrounds the head of the temperature sensor and does not prevent the influence of high-temperature flue gas on the wires in the temperature sensor. The wires are also easily damaged under the influence of high-temperature flue gas and thermal radiation. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a gas stove with an anti-dry-burning function, which can effectively prevent the influence of high-temperature smoke and heat radiation on the wire part of the temperature sensor in view of the above-mentioned existing technical status.

[0005] The second technical problem to be solved by the present invention is to provide a gas stove with an anti-dry burning function, which can effectively prevent high-temperature smoke and heat radiation from affecting the temperature measuring part of the temperature sensor, in response to the above-mentioned existing technical status.

[0006] In order to solve the first technical problem mentioned above, the technical solution adopted by the present invention is: the gas stove with anti-dry burning function includes a stove panel, a bottom shell adapted to the stove panel and a burner, a temperature sensor is arranged at the center of the burner, the temperature sensor includes a head where a temperature sensing element is located and a tail accommodating a wire, and is characterized in that: it also includes an air guide tube passing through the central part of the burner, the temperature sensor is arranged in the air guide tube and a gap is left between the temperature sensor and the inner wall of the air guide tube, the upper and lower ends of the air guide tube are open, and the lower end of the air guide tube extends downward from under the bottom shell.

[0007] To further solve the second technical problem, preferably, the top of the air guide tube is higher than the top of the head of the temperature sensor. The air guide tube also extends to the head of the temperature sensor, which not only ensures the normal temperature sensing of the temperature sensor, but also effectively avoids the temperature sensitivity of the smoke to the temperature sensor.

[0008] In order to better guide the air outside the bottom shell of the gas stove into the air guide tube, the air guide tube is divided into three parts from bottom to top according to the change of the cross-section: a contraction part with the bell mouth facing downward, a straight part and a diffusion part with the bell mouth facing upward, the tail of the temperature sensor is located in the contraction part, and the head of the temperature sensor is located in the diffusion part.

[0009] The contraction portion can guide the air outside the bottom shell into the inlet tube more quickly, and the air in the contraction portion can cover more of the tail of the temperature sensor to effectively prevent the high-temperature smoke and heat radiation from affecting the wire part of the temperature sensor; and the diffusion portion is more spread outward relative to the head of the temperature sensor. On the one hand, it can block the high-temperature smoke and heat radiation in a larger range around the head of the temperature sensor, and on the other hand, it can diffuse a part of the air gathered by the contraction portion to prevent the air preheated by the contraction portion of the air guide tube from affecting the measurement of the head of the temperature sensor.

[0010] In order to make the air guide tube fit the bottom of the pot more closely and prevent high-temperature smoke from entering the first separation zone, the diffusion part can move up and down relative to the straight part.

[0011] From a simpler installation method, the installation method of the diffuser is preferably: the top of the straight portion has a groove with an opening facing upward, and an elastic member is arranged in the groove, so that the diffuser always tends to move away from the straight portion.

[0012] Furthermore, the top periphery of the straight portion or the outer wall adjacent to the top thereof has a convex edge extending outward, and there is a gap between the outer periphery of the convex edge and the annular top wall of the fire cover. The gap ensures that the air in the air replenishment channel can flow to the inner side of the fire outlet hole of the fire cover, and the convex edge also has the function of guiding the overflow to prevent the overflow from affecting the temperature sensor.

[0013] In order to prevent smoke from entering the first separation zone from outside to inside, but not affect the second separation zone's air replenishment to the inner side of the fire cover's fire outlet hole, the outer periphery of the convex edge has a protective eave extending downward to prevent smoke from entering the second separation zone.

[0014] The burner is not only applicable to the burner with inner and outer ring fire covers, but also applicable to the burner with only a single ring structure as follows, wherein the burner comprises:

[0015] The base has an air supply passage located in the center and extending vertically therethrough and a gas passage located at the periphery of the air supply passage;

[0016] A fire cover, covering the base, includes an annular body, an air mixing chamber connected to the gas channel is formed between the annular top wall of the body and the inner and outer annular walls vertically or obliquely extending downward from the inner and outer edges of the annular top wall, and the outer annular walls, the outer annular walls are provided with fire outlet holes connected to the air mixing chamber at intervals along the circumferential direction, and the head of the temperature sensor extends out of the annular top wall;

[0017] The air guide cylinder divides the inner space of the air replenishment channel into a first separation area and a second separation area from the center to the outside, the temperature sensor is located in the first separation area, and the second separation area is used to replenish the air inside the fire outlet hole. This arrangement ensures that the addition of the air guide cylinder does not affect the air replenishment inside the fire outlet hole of the fire cover.

[0018] Furthermore, the annular top wall of the fire cover has a protective ring extending upward for blocking smoke from entering the second separation zone, and the protective ring is located on the inner side of the protective eaves.

[0019] In order to adapt to different cookware, especially pointed pots, the diffusion portion can also have the following implementation scheme, the diffusion portion includes at least two baffles that can be arranged in a circle on the top of the straight portion in an opening and closing manner, and each of the baffles is also connected to an actuator that can drive each of the baffles to open.

[0020] The driving opening may be realized in that the actuating member can drive each of the baffles to open in the radial direction by the downward pressure exerted on the diffuser.

[0021] Preferably, the actuator is an elastic pressing head connected to the upper surface of the baffle, the diffuser includes an annular body, the annular body has a first V-shaped groove opening radially outward, the tail of each baffle is connected to the middle tip of the first V-shaped groove, the first V-shaped groove includes an upper annular wall and a lower annular wall spaced apart from each other, the outer edge of the lower annular wall is more protruding in the radial outward direction than the outer edge of the middle annular wall, and the root end of the elastic pressing head is connected to the lower annular wall.

[0022] Furthermore, the elastic pressing head has a mounting cavity with an opening facing downward and accommodating a first elastic member, and correspondingly, the lower annular wall has a mounting seat with an opening facing upward and opposite to the mounting cavity, one end of the first elastic member is connected to the mounting seat, and the other end of the first elastic member is connected to the mounting cavity, so that the actuator can drive each of the baffles to open radially by the downward pressure on the diffuser, and adjacent baffles form openings in the open state. The openings fit the bottom of the pot to prevent high-temperature smoke from entering the diffuser through the openings.

[0023] In order to prevent the possibility of high-temperature flue gas still entering the diffusion part, the annular body is further provided with a second V-shaped groove on the upper ring wall with an opening facing radially outward, and at least two shielding plates forming a circle are provided in the second V-shaped groove. The actuator also drives each of the shielding plates to open and at least partially block the opening.

[0024] In order to enable the actuating member to open the shielding sheet and the blocking sheet at the same time, the head of the elastic pressing head passes through the upper surface of the shielding sheet.

[0025] Furthermore, the lower surface of each shielding sheet has a first shielding strip and a second shielding strip on both sides of the opening, and when the diffuser is subjected to downward pressure, the actuator can simultaneously drive each shielding sheet and the baffle to open radially, and the lower surface of the shielding sheet, the upper surface of the baffle, and the first shielding strip and the second shielding strip together form a shielding cavity surrounding the opening. When the actuator can drive each baffle to open radially due to the downward pressure on the diffuser, an opening will be formed, and the first shielding strip and the second shielding strip of the shielding sheet can cleverly achieve the shielding of the opening, preventing high-temperature flue gas from affecting the temperature sensor.

[0026] Compared with the prior art, the advantage of the present invention is that an air guide tube surrounding the lower end of the temperature sensor is provided to prevent the influence of high-temperature smoke on the temperature sensor, wherein the tail portion of the temperature sensor containing the wire is provided at the lower end of the air guide tube, and the lower end of the air guide tube partially extends out of the bottom shell of the gas stove, so that external air can be introduced into the air guide tube to maintain the tail portion of the temperature sensor containing the wire at a normal temperature as much as possible, thereby playing a protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a gas stove in Embodiment 1 of the present invention;

[0028] Figure 2 for Figure 1 A cross-sectional view of

[0029] Figure 3 It is a schematic structural diagram of each baffle opening in the radial direction due to the downward pressure exerted on the diffuser in Embodiment 2 of the present invention;

[0030] Figure 4 for Figure 3 A cross-sectional view of

[0031] Figure 5 A cross-sectional view of the diffuser placed on the straight section in Example 2 of the present invention, in which the downward pressure applied thereto drives each baffle to open in the radial direction (the contraction section of the air guide cylinder is omitted);

[0032] Figure 6 It is a schematic structural diagram of the downward pressure force on the diffuser in Embodiment 3 of the present invention driving each baffle and shielding sheet to open in the radial direction;

[0033] Figure 7 for Figure 6 A cross-sectional view of

[0034] Figure 8 This is a cross-sectional view showing the radial opening of each baffle and shielding plate driven by the downward pressure on the diffuser in Example 3 of the present invention (the contraction section of the air guide cylinder is omitted). DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings.

[0036] like Figures 1-2 The best embodiment of the present invention is shown in FIG. 1 . The gas stove with anti-dry burning function in this embodiment comprises a stove panel 1, a bottom shell 2 adapted to the stove panel 1 and a burner. A temperature sensor is arranged at the center of the burner. The temperature sensor comprises a head 51 where a temperature sensing element is located and a tail 52 containing a wire. The burner also comprises an air guide tube 6 that passes through the center of the burner. The temperature sensor is arranged inside the air guide tube 6 and a gap is left between the temperature sensor and the inner wall of the air guide tube 6. The upper and lower ends of the air guide tube 6 are open, and the lower end 61 of the air guide tube 6 extends downward from the bottom shell 2.

[0037] The top 62 of the air guide tube 6 is higher than the top of the head 51 of the temperature sensor, which not only ensures the normal temperature sensing of the temperature sensor, but also effectively avoids the temperature sensitivity of the flue gas to the temperature sensor. The burner is not only applicable to burners with inner and outer ring fire covers, but also applicable to the following burners with only a single ring structure, the burner includes a base 3, the base 3 has a central air supplementary channel 31 that runs through the upper and lower parts, and a gas channel 32 located on the periphery of the air supplementary channel 31, a fire cover 4 covering the base 3, the fire cover 4 includes an annular body, the annular top wall 41 of the body and the inner ring wall 42 and the outer ring wall 43 that extend vertically or obliquely downward from the inner edge and the outer edge of the annular top wall 41 form a mixing hole connected to the gas channel 32. The air cavity 44 and the outer annular wall 43 are provided with fire holes 441 connected with the air mixing cavity 44 at intervals along the circumferential direction, and the head 51 of the temperature sensor protrudes out of the annular top wall 41; it also includes an air guide tube 6, which can separate the internal space of the air replenishment channel 31 from the center to the outside into a first separation area 311 and a second separation area 312 in sequence, and the temperature sensor is located in the first separation area 311, and the second separation area 312 is used to replenish the air inside the fire hole 441. This arrangement ensures that the addition of the air guide tube 6 does not affect the air replenishment corresponding to the inner side of the fire hole 441 of the fire cover.

[0038] In order to better guide the air outside the bottom shell 2 of the gas stove into the air guide tube 6, the air guide tube 6 is divided into three parts from bottom to top according to the change of the cross section: a contraction part 63 with a bell mouth facing downward, a straight part 64 and a diffusion part 65 with a bell mouth facing upward, the tail part 52 of the temperature sensor is connected to the contraction part 63, and the head part 51 of the temperature sensor is located in the center of the diffusion part 65. The contraction part 63 can guide the air outside the bottom shell 2 into the air guide tube 6 more quickly, and the air in the contraction part 63 can cover more around the tail part 52 of the temperature sensor to effectively prevent the high-temperature smoke and heat radiation from affecting the wire part of the temperature sensor; and the diffusion part 65 is more spread outward relative to the head part of the temperature sensor, on the one hand, it can block the high-temperature smoke and heat radiation in a larger range outside the head part 51 of the temperature sensor, and on the other hand, it can diffuse a part of the air gathered by the contraction part to prevent the air preheated by the contraction part 63 of the air guide tube 6 from affecting the measurement of the head part 51 of the temperature sensor. In order to make the air guide tube 6 fit the bottom of the pot better and prevent the high-temperature smoke from entering the first separation zone, the diffuser 65 can move up and down relative to the straight portion 64. From a simpler installation method, the diffuser is preferably installed in a manner that: the top of the straight portion 64 has a groove 641 with an opening facing upward, and an elastic member 642 is arranged in the groove 641, and the elastic member 642 makes the diffuser 65 always have a tendency to move away from the straight portion 64.

[0039] In addition, the top periphery of the straight portion 64 or the outer wall adjacent to the top thereof has a convex edge 643 extending outward, and there is a gap between the outer periphery of the convex edge 643 and the annular top wall 41 of the fire cover 4, which ensures that the air in the air replenishment channel 31 can flow to the inner side of the fire outlet hole 441 of the fire cover 4, and the convex edge 643 also has the function of guiding the overflow to prevent the overflow from affecting the temperature sensor. In order to prevent smoke from entering the first separation zone 311 from the outside to the inside, but not affecting the air replenishment of the second separation zone 312 to the inner side of the fire outlet hole 441 of the fire cover 4, the outer periphery of the convex edge 643 has a protective eave 6431 extending downward to prevent smoke from entering the second separation zone 312, and the annular top wall 41 of the fire cover 4 has a protective ring 411 extending upward to prevent smoke from entering the second separation zone 312, and the protective ring 411 is located on the inner side of the protective eave 6431. The influence of high-temperature smoke on the temperature sensor is avoided by providing an air guide tube 6 surrounding the tail portion 52 of the temperature sensor, wherein the tail portion 52 of the temperature sensor containing the wire is provided at the lower end 61 of the air guide tube 6, and the lower end 61 of the air guide tube 6 partially extends out of the bottom shell 2 of the gas stove, and external air can be introduced into the air guide tube 6 to maintain the tail portion 52 of the temperature sensor containing the wire at a normal temperature as much as possible, thereby playing a protective role.

[0040] Example 2

[0041] The structure is basically the same as that of the first embodiment, and the only difference is that in order to adapt to different pots, especially pointed pots, the diffuser 65 can also have the following implementation scheme: the diffuser 65 includes at least two baffles 651 that can be arranged on the top of the straight portion 64 in an open and close manner and form a circle, and each baffle 651 is also connected to an actuator that can drive each baffle 651 to open. The actuator can drive the baffle 651 to open in a radial direction by the downward pressure force on the diffuser 65. In this embodiment, the actuator is an elastic pressing head 7 connected to the upper surface of the baffle 651. The diffuser 65 includes an annular body 652, and the annular body 652 has a first V-shaped groove 6521 with an opening facing radially outward. The root of each baffle 651 is connected to the middle tip of the first V-shaped groove 6521. The first V-shaped groove 6521 includes an upper annular wall 6522 and a lower annular wall 6523 arranged at intervals from top to bottom. The outer edge of the lower annular wall 6523 is more prominent in the radial outward direction than the outer edge of the middle annular wall. The root end of the elastic pressing head 7 is connected to the lower annular wall. There is a mounting cavity 6524 with an opening facing downward and accommodating the first elastic member 8, and the corresponding underground ring wall 6523 has a mounting seat 6524 with an opening facing upward and opposite to the mounting cavity. One end of the first elastic member 8 is connected to the mounting seat 6524, and the other end of the first elastic member 8 is connected to the mounting cavity 6524, so that the actuator can drive each baffle 651 to open radially by the downward pressure on the diffuser 65, and adjacent baffles 651 form openings 653 in the open state, wherein the openings 653 are in contact with the bottom of the pot to prevent high-temperature smoke from entering the diffuser 65 through the openings 653. Figures 3 to 5 shown.

[0042] Example 3

[0043] The structure is basically the same as that of Example 2, with the only difference being that, in order to prevent the possibility of high-temperature flue gas still entering the diffuser 65, the annular body 652 is further provided with a second V-shaped groove 6525 opening radially outward on the upper annular wall 6522, and at least two shielding sheets 654 are arranged in a circle in the second V-shaped groove 6525. The actuator also drives each shielding sheet 654 to open and at least partially shield the opening 653. In order to realize that the actuator opens the shielding sheet 654 and the shielding sheet 651 at the same time, the elastic The head of the pressing head 7 passes through the upper surface of the shielding piece 654. The lower surface of each shielding piece 654 has a first shielding strip 655 and a second shielding strip 656 on both sides of the opening. When the diffuser 65 is subjected to downward pressure, the actuator can simultaneously drive each shielding piece 654 and the baffle 651 to open radially. The lower surface of the shielding piece 654, the upper surface of the baffle 651, and the first shielding strip 655 and the second shielding strip 656 together form a shielding cavity 657 surrounding the opening 653. When the actuator can drive each baffle 651 to open radially due to the downward pressure on the diffuser 65, an opening 653 will be formed, and the first shielding strip 655 and the second shielding strip 656 of the shielding piece can cleverly achieve the shielding of the opening 653 to prevent the high-temperature flue gas from affecting the temperature sensor, such as Figures 6 to 8 shown.

Claims

1. A gas stove with an anti-dry burning function, comprising a stove panel (1), a bottom shell (2) adapted to the stove panel (1), and a burner, wherein a temperature sensor is arranged at the center of the burner, and the temperature sensor comprises a head (51) where a temperature sensing element is located and a tail (52) where a wire is accommodated, and is characterized in that: It also includes an air guide cylinder (6) that passes through the central part of the burner, the temperature sensor (5) is arranged in the air guide cylinder (6) and is spaced apart from the inner wall of the air guide cylinder (6), the upper and lower ends of the air guide cylinder (6) are open, and the lower end (61) of the air guide cylinder (6) extends downwardly below the bottom shell (2); The top end (62) of the air guide cylinder (6) is higher than the top end of the head (51) of the temperature sensor; The air guide cylinder (6) is divided into three parts from bottom to top according to the change of the cross section: a contraction part (63) with the bell mouth facing downward, a straight part (64) and a diffusion part (65) with the bell mouth facing upward, the tail part (52) of the temperature sensor (5) is located at the contraction part (63), and the head part (51) of the temperature sensor (5) is located at the diffusion part (65); The diffusion portion (65) can move up and down relative to the straight portion (64).

2. The gas stove with anti-dry burning function according to claim 1, characterized in that: The top of the straight portion (64) is provided with a groove (641) with an opening facing upwards, and an elastic member (642) is arranged in the groove (641). The elastic member (642) enables the diffusion portion (65) to always have a tendency to move away from the straight portion (64).

3. The gas stove with anti-dry burning function according to claim 2, characterized in that: The top periphery of the straight portion (64) or the outer wall adjacent to the top thereof has a convex edge (643) extending outwards, and there is a gap between the outer periphery of the convex edge (643) and the annular top wall (41) of the fire cover (4).

4. The gas stove with anti-dry burning function according to claim 3, characterized in that: The outer periphery of the convex edge (643) has a protective eave (6431) extending downward for blocking smoke from entering the second separation zone (312).

5. The gas stove with anti-dry burning function according to claim 3 or 4, characterized in that: The burner comprises: The base (3) has an air supply passage (31) located in the center and extending vertically therethrough, and a gas passage (32) located outside the air supply passage (31); A fire cover (4) covers the base (3) and comprises an annular body, wherein an air mixing chamber (44) communicating with the gas passage (32) is formed between an annular top wall (41) of the body and an inner annular wall (42) and an outer annular wall (43) extending vertically or obliquely downward from the inner edge and the outer edge of the annular top wall (41), wherein fire outlet holes (441) communicating with the air mixing chamber (44) are provided at intervals along the circumferential direction on the outer annular wall (43), and a head (51) of the temperature sensor protrudes outside the annular top wall (41); The air guide tube (6) divides the internal space of the air replenishment channel (31) into a first separation zone (311) and a second separation zone (312) from the center to the outside, the temperature sensor (5) is located in the first separation zone (311), and the second separation zone (312) is used to replenish the air inside the fire outlet hole (441).

6. The gas stove with anti-dry burning function according to claim 5, characterized in that: The annular top wall (41) of the fire cover (4) has a protective ring (411) extending upward for blocking smoke from entering the second separation zone (312), and the protective ring (411) is located on the inner side of the protective eaves (6431).

7. The gas stove with anti-dry burning function according to claim 6, characterized in that: The convex edge (643) gradually slopes downward from top to bottom.

8. The gas stove with anti-dry burning function according to claim 2, characterized in that: The diffusion portion (65) includes at least two baffles (651) arranged in a circle on the top of the straight portion (64) in an opening and closing manner, and each of the baffles (651) is also connected to an actuator that can drive each of the baffles (651) to open.

9. The gas stove with anti-dry burning function according to claim 8, characterized in that: The actuating member can drive each of the baffles (651) to open in the radial direction by the downward pressure force exerted on the diffuser (65).

10. The gas stove with anti-dry burning function according to claim 9, characterized in that: The actuator is an elastic pressing head (7) connected to the upper surface of the baffle (651); the diffuser (65) includes an annular body (652); the annular body (652) has an opening (653) facing a first V-shaped groove (6521) radially outward; the tail of each baffle (651) is connected to the middle tip of the first V-shaped groove (6521); the first V-shaped groove (6521) includes an upper annular wall (6522) and a lower annular wall (6523) spaced apart from each other; the outer edge of the lower annular wall (6523) is more protruding in the radial outward direction than the outer edge of the middle annular wall; the root end of the elastic pressing head (7) is connected to the lower annular wall (6523).

11. The gas stove with anti-dry burning function according to claim 10, characterized in that: The elastic pressing head (7) has a mounting cavity (71) with an opening facing downward and accommodating a first elastic member (8); correspondingly, the lower annular wall (6523) has a mounting seat (6524) with an opening (653) facing upward and opposite to the mounting cavity (71); one end of the first elastic member (8) is connected to the mounting seat (6524), and the other end of the first elastic member (8) is connected to the mounting cavity (71), so that the actuator can drive each of the baffles (651) to open radially by the downward pressure force on the diffuser (65); adjacent baffles (651) form openings (653) in the open state.

12. The gas stove with anti-dry burning function according to claim 11, characterized in that: The annular body (652) is further provided with a second V-shaped groove (6525) opening radially outward on the upper annular wall (6522), and at least two shielding plates (654) arranged in a circle are provided in the second V-shaped groove (6525), and the actuator also drives each shielding plate (654) to open and at least partially shield the opening (653).

13. The gas stove with anti-dry burning function according to claim 12, characterized in that: The head of the elastic pressing head (7) passes outside the upper surface of the shielding sheet (654).

14. The gas stove with anti-dry burning function according to claim 13, characterized in that: The lower surface of each shielding sheet (654) has a first shielding strip (655) and a second shielding strip (656) on both sides of the opening (653). When the diffuser (65) is subjected to a downward pressure force, the actuator can simultaneously drive each shielding sheet (654) and the blocking sheet (651) to open radially. The lower surface of the shielding sheet (654), the upper surface of the blocking sheet (651), and the first shielding strip (655) and the second shielding strip (656) together form a shielding cavity (657) surrounding the opening (653).

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