Gas stove

Abstract

The invention discloses a gas stove which comprises a burner and a fire cover seat mounted on the burner, the fire cover seat comprises an inner fire cover and at least one outer fire cover surrounding the periphery of the inner fire cover, the outer fire cover is provided with an ignition cavity at least penetrating through the inner side wall and the outer side wall, and an ignition needle is arranged in the ignition cavity. The ignition cavity is provided with a fire transferring channel used for transferring fire to the fire holes of the outer fire cover, and the fire transferring channel is communicated with the fuel gas channel. By arranging the ignition cavity penetrating through the inner side wall and the outer side wall of the outer fire cover, the ignition needle and the fire transfer channel are hidden below the outer fire cover together, and ignition and fire transfer are prevented from being affected when the ignition needle and the fire transfer channel are blocked by overflowing liquid and other impurities.

Description

Technical Field

[0001] This invention belongs to the field of gas stoves, and more specifically, relates to a gas stove. Background Technology

[0002] With the improvement of the national economic level, more and more household appliances are entering people's daily lives. Among them, gas stoves have become one of the essential household appliances for every household. Gas stoves are not limited by power lines or electrical faults, and the firepower is easier to control, thereby improving the efficiency of life.

[0003] Existing gas stoves ignite via an ignition switch, which also controls the flame size. The ignition switch typically uses an ignition needle, which is usually exposed to the air, with its tip discharging onto the side of the burner cap. After spills or prolonged use, the needle tip easily becomes clogged with debris, preventing discharge and causing the stove to fail to ignite. Alternatively, a cap can be added to protect the needle tip, but these caps are usually small and offer limited protection when there is significant spillage. Furthermore, the flame transmission grooves are typically cut into the top surface of the burner cap, which are prone to blockage after spills. When the flame transmission grooves are blocked, the flame cannot be properly transmitted during ignition; usually, only the inner ring or other ignition points have a flame, while other burner holes remain unlit. These unlit burner holes result in significant gas leakage, posing a safety hazard and negatively impacting the user experience.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a gas stove that hides the flame transmission channel and ignition needle at the bottom of the burner cap to ensure the transmission of the ignition needle and flame.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A gas stove includes a burner head and a burner cap holder mounted on the burner head, the burner cap holder including an inner burner cap and at least one outer burner cap surrounding its periphery. The outer flame cap has an ignition cavity that penetrates at least the inner and outer side walls. An ignition needle is disposed in the ignition cavity. The ignition cavity has a flame transmission channel for transmitting the flame to the flame hole of the outer flame cap. The flame transmission channel is connected to the gas passage.

[0007] Furthermore, the ignition chamber has at least one ignition hole on its peripheral wall that communicates with the gas passage. The flame from the ignition hole ignites the flame holes on the inner and outer walls of the outer flame cap through the flame transmission passage.

[0008] Furthermore, the ignition hole is disposed on the side wall of the ignition chamber, and the flame transmission channel extends along the side wall of the ignition chamber to the inner and outer side walls of the outer flame cover. The inner and outer side walls of the outer flame cover are provided with flame transmission holes, which are located above the flame transmission channel.

[0009] Furthermore, the ignition channel includes a portion extending circumferentially from the side wall of the ignition chamber along the outer flame cap to communicate with the gas channel, and a portion extending to both sides of the outer flame cap to penetrate the inner and outer side walls of the outer flame cap. Preferably, the ignition channel includes a ignition groove disposed on the side wall of the ignition chamber and communicating with the gas passage, and a channel extending through the inner and outer side walls of the outer flame cap and communicating with the ignition groove.

[0010] Furthermore, the bottom end of the ignition chamber sidewall is higher than the bottom end of the outer flame cap. The flame transmission channel includes a flame transmission groove that extends from the sidewall of the ignition chamber along the circumference of the outer flame cap and connects to the inside of the gas passage, and a cross-sectional channel formed between the bottom end of the ignition chamber sidewall and the bottom end of the outer flame cap after extending a certain distance along the circumference of the outer flame cap.

[0011] Furthermore, the cross-sectional channel is basically parallel to the ignition channel. The distance that the cross-sectional channel extends from the bottom of the side wall of the ignition chamber along the circumference of the outer flame cover is greater than the extension length of the ignition channel, and it is close to the ignition chamber. The ignition hole is located on the upper side of the cross-sectional channel.

[0012] Furthermore, the bottom opening of the fire transmission groove is connected to the cross-sectional channel to form an integral fire transmission channel.

[0013] Furthermore, a gas distribution plate is attached to the bottom of the outer flame cap, and a gas distribution disk is attached to the bottom of the gas distribution plate. The gas distribution plate and the gas distribution disk have notches corresponding to the position of the ignition chamber, and the ignition needle passes through the notches and is located inside the ignition chamber.

[0014] Furthermore, the notches of the gas distributor and the gas distributor plate, together with the ignition chamber of the outer burner cap, form a through chamber with an opening at the lower end.

[0015] Furthermore, there are two outer flame covers, including a first outer flame cover and a second outer flame cover. The second outer flame cover surrounds the outer periphery of the first outer flame cover. The inner side of the second outer flame cover is provided with a flame transmission hole opposite to the outer flame hole of the first outer flame cover. The bottom end of the second outer flame cover is provided with a flame transmission channel that connects the inner and outer sides of the second outer flame cover. The flame inside the second outer flame cover ignites the outer flame hole through the flame transmission channel.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: 1. The gas stove of the present invention includes a burner cap disposed on the burner head and an ignition chamber disposed at the bottom end of the outer burner cap, penetrating the inner and outer side walls. The ignition needle is disposed in the ignition chamber and is shielded by the top wall of the burner cap to prevent overflow liquid and other impurities from falling on the ignition needle and affecting its normal use. The flame transmission channel disposed in the ignition chamber is also hidden at the bottom end of the burner cap and connected to the gas channel to prevent flame transmission from being affected when overflow liquid or other impurities block the flame transmission channel. 2. In this invention, the ignition hole is located on the side wall of the ignition chamber, which also hides the ignition hole under the burner cap, thus preventing overflow or other impurities from clogging the ignition hole and causing the gas to fail to output, thereby affecting ignition. 3. The fire transmission channel of the present invention is set at the bottom of the ignition chamber. The fire transmission channel is formed by the height difference between the bottom of the ignition chamber and the bottom surface of the outer flame cap, which reduces the production difficulty and improves the production efficiency. 4. The present invention may have multiple outer flame caps, and the flames inside the outer flame caps are ignited through flame transmission holes. The flames inside the outer flame caps are then transmitted to the outer flame holes for ignition through a flame transmission channel located at the bottom of the outer flame caps that penetrates the inner and outer walls. The flame transmission channel is located on the lower side of the outer flame caps to prevent overflow or other impurities from blocking the flame transmission channel and affecting normal use.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the gas stove of the present invention being exploded; Figure 2 This is a schematic cross-sectional view of the gas stove of the present invention; Figure 3 This is a schematic diagram of the assembly of the inner flame cap of the present invention; Figure 4 This is a schematic diagram of the air distribution plate of the present invention; Figure 5 This is a cross-sectional view of the inner fire cover assembly of the present invention; Figure 6 This is an assembly diagram of the outer flame cap and flame cap base of the present invention; Figure 7 This is a schematic diagram of the outer flame cap of the present invention; Figure 8 This is an assembly diagram of the furnace head and burner base of the present invention.

[0019] In the diagram: 11. Inner burner cap; 111. Inner gas passage; 113. Inner flame stabilizer. 12. Inner flame cap; 121. Flame transmission channel; 122. Ignition chamber; 123. Flame transmission groove; 124. Flame transmission hole; 126. Inner flame stabilizing groove; 127. Inner gas passage; 128. Ignition hole; 13. Outer burner cap; 131. Outer burner gas distribution plate; 132. Burner cap base; 1321. Outer burner through hole; 1322. Ignition mounting hole; 1323. Retaining rib; 1324. Boss; 133. External gas passage; 134. Outer burner cap outer wall; 135. Outer burner cap inner wall; 1341. First mounting part; 1351. Second mounting part; 1342. First convex ring; 1352. Second convex ring; 137. Outer burner flame stabilizer groove; 14. Gas distributor; 141. Gas distributor plate; 142. Notch; 144. Flameout protection hole; 145. Interior flame mounting part; 146. Third ring wall; 147. Fourth ring wall; 15. Burner head; 151. First ring wall; 152. Second ring wall; 153. Mounting platform; 21. Ignition needle.

[0020] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] like Figures 1 to 5 As shown, a gas stove according to the present invention includes a burner head 15 and a burner cap holder mounted on the burner head 15. The burner cap holder includes an inner burner cap 11 and at least one outer burner cap surrounding its outer perimeter. The outer burner cap has an ignition cavity 122 that penetrates at least the inner and outer side walls. An ignition needle 21 is disposed within the ignition cavity 122. The ignition cavity 122 has a flame transmission channel 121 for transmitting flame to the flame holes of the outer burner cap. The ignition needle 21 is disposed on the bottom side of the outer burner cap.

[0025] Specifically, there are two outer flame covers. The one surrounding the inner flame cover 11 is the middle flame cover 12, and the one surrounding the middle flame cover 12 is the outer flame cover 13. When there is only one outer flame cover, the middle flame cover 12 is the outer flame cover 13. Taking the case of two outer flame covers as an example, the bottom end of the middle flame cover 12 is provided with an ignition cavity 122 that penetrates at least the inner and outer side walls. The ignition cavity 122 forms a U-shaped through-hole with an opening at the bottom. The ignition needle 21 extends through the bottom opening into the ignition cavity 122. In a preferred embodiment, the ignition cavity 122 is open on three sides, and the through-hole extends from the top wall of the ignition cavity 122 to the bottom of the flame cover. The top wall of the ignition cavity 122 is the inner wall of the upper end of the middle flame cover 12 body. The middle flame covers 12 on both sides of the through-hole form the side walls of the ignition cavity 122. The ignition needle 21 is located inside the ignition cavity 122. The top wall of the flame chamber 122 has a protrusion that interacts with the ignition needle 21 to generate a spark. The side wall of the ignition chamber 122 has a flame transmission channel 121 that communicates with the gas transmission channel 127 inside the flame chamber cover 12. The flame transmission channel 121 extends from the outer side wall to the inner side wall of the flame chamber cover 12. By communicating with the gas transmission channel 127, the flame transmission channel 121 is supplied with gas. After the gas in the flame transmission channel 121 is ignited, the flame is transmitted along the flame transmission channel 121 to the inner and outer flame holes of the flame chamber cover 12. The ignition needle 21 and the flame transmission channel 121 are hidden in the ignition chamber 122 or the bottom of the flame chamber cover 122 by the ignition chamber 122 located at the bottom of the flame chamber cover 122. This prevents the overflow liquid generated during cooking from falling onto the ignition needle 21 or the flame transmission channel 121, which could cause blockage and affect ignition and flame transmission, thus preventing normal use.

[0026] In a further embodiment, the ignition chamber 122 has at least one ignition hole 128 communicating with the gas passage on its peripheral wall. The flame from the ignition hole 128 is transmitted to the inner and outer flame holes of the flame cap 12 through the flame transmission passage 121.

[0027] Specifically, the ignition hole 128 can be set on the top wall of the ignition chamber 122 and have a channel on the top wall that communicates with the gas passage 127, or it can be set on the side wall of the ignition chamber 122 and communicate with the gas passage 127.

[0028] In a further embodiment, the fire transmission channel 121 can be positioned at any height relative to the side wall of the ignition chamber 122. In a preferred embodiment, the fire transmission channel 121 is located at the lower end of the ignition chamber 122, extending through the outer side wall of the intermediate flame cover 12 to the inner side wall.

[0029] Specifically, the ignition hole 128 is disposed on the side wall of the ignition chamber 122, and the flame transmission channel 121 is located below the ignition hole 128. The flame transmission channel 121 extends from the side wall of the ignition chamber 122 along the circumference of the intermediate flame cap 12 to the intermediate gas channel 127, and extends to the inner and outer side walls of the outer flame cap, forming a cut cross-sectional channel that runs from the outer side wall of the intermediate flame cap 12 to the inner side wall. In a preferred embodiment, the bottom end of the side wall of the ignition chamber 122 is higher than the bottom end of the intermediate flame cap 12, and the cross-sectional channel is located at the bottom end of the ignition chamber 122, extending a certain distance from the bottom end of the side wall of the ignition chamber 122 along the circumference of the intermediate flame cap 12, forming a height difference with the bottom end of the intermediate flame cap 12.

[0030] like Figure 8 As shown, the burner head 15 is provided with a first annular wall 151 and a second annular wall 152. The second annular wall 152 has a circumferential break, and the break extends towards the first annular wall 151 and connects with the first annular wall 151. The break forms an installation hole for a flameout protection device. The upper side of the burner head 15 is provided with a flame cap base 132. The flame cap base 132 is disc-shaped and has a through hole at the axial position. The outer periphery of the through hole has a fixing hole for fixing the flame cap base 132. The outer periphery of 2 is also provided with fixing holes that match the burner head 15. The outer periphery of the burner cap base 132 is also provided with fixing holes for fixing the burner cap base 132. The burner cap base 132 has four external flame passage holes 1321 distributed circumferentially near the outer periphery. The external flame passage holes 1321 are fan-shaped and extend upward along the axial direction to form a hollow external gas passage 133. The burner cap base 132 is provided with ignition mounting holes 1322, and the ignition needle 21 is fixedly installed in the ignition mounting holes 1322.

[0031] In a further embodiment, an outer flame cap 13 is fitted onto the flame cap base 132. The outer flame cap 13 is sleeved on the outer flame through hole 1321. An outer flame gas distribution plate 131 is provided between the outer flame cap 13 and the flame cap base 132, which together with the flame cap base 132 and the outer flame cap 13 form the outer flame through hole 1321.

[0032] Specifically, the outer flame cap 13 is annular in shape and includes an outer wall 134 and an inner wall 135. A portion of the outer wall 134 and the inner wall 135 extend downwards along the axial direction, extending to form a first mounting portion 1341 and a second mounting portion 1351. The extension positions correspond to the outer flame through hole 1321. A boss 1324 protrudes from the outer peripheral wall of the outer flame through hole 1321 on the axial side, engaging with the second mounting portion 1351. The second mounting portion 1351 rests on the boss 1324. The boss 1324 has retaining ribs 1323 at both ends to restrict the circumferential rotation of the outer flame cap 13. The inner side of the first mounting portion 1341... A first protruding ring 1342 is provided, and a second protruding ring 1352 is provided on the outer side of the second mounting part 1351. The top wall of the first protruding ring 1342 and the outer flame through hole 1321 are fitted together with the first protruding ring 1342 and the second protruding ring 1352. In a preferred embodiment, at least two of the protrusions 1324 are provided with a baffle 1323 at one end. The baffle 1323 is provided on both sides along the circumferential rotation direction. One baffle 1323 is provided at one end of the first rotation direction of a protrusion 1324 along the first rotation direction, and the other baffle 1323 is provided at one end of the second rotation direction of another protrusion 1324 along the second rotation direction. The two baffles 1323 cooperate to restrict the circumferential rotation of the outer flame cover 13.

[0033] In a further embodiment, a gas distribution plate 141 is coaxially provided at the upper end of the burner base 132, and the gas distribution plate 141 transmits the gas into the inner burner 11 and the middle burner 12 respectively.

[0034] Specifically, the first annular wall 151 is part of the outer peripheral wall of the inner gas passage 111. The second annular wall 152 and the first annular wall 151 form the middle gas passage 127. The bottom of the gas distribution plate 141 is provided with a third annular wall 146 and a fourth annular wall 147 that cooperate with the first annular wall 151 and the second annular wall 152. The fourth annular wall 147 is sleeved on the outer periphery of the second annular wall 152. The third annular wall 146 extends to the inner side of the first annular wall 151. The inner wall of the first annular wall 151 is provided with a mounting platform 153. The third annular wall 146 is mounted on the mounting platform 153. The outer periphery of the gas distribution plate 141 is provided with a notch 142, which together with the middle burner cap 12 forms the flame transmission passage 121. The upper end of the gas distribution plate 141 is coaxially provided with an inner burner cap 11. The upper end of the gas distribution plate 141 is provided with an inner burner mounting part 145 that cooperates with the inner burner cap 11. The inner burner mounting part 145 includes a connection with the inner burner cap 11. The cover 11 has a corresponding fixed mounting hole and a connecting rod connected to the third annular wall 146. The gas distribution plate 141 has a flameout protection hole 144 corresponding to the mounting hole of the flameout protection device for fixing the flameout protection device. A gas distribution plate 14 is provided between the intermediate flame cover 12 and the gas distribution plate 141. The gas distribution plate 14 and the gas distribution plate 141 cooperate to form a partial gas combustion channel 127. The gas is then transmitted to the intermediate flame cover 12 through the through hole on the gas distribution plate 14. The gas distribution plate 14 has a notch 142 corresponding to the notch 142 of the gas distribution plate 141. The bottom end of the intermediate flame cover 12 has an ignition chamber 122. The ignition chamber 122 and the notch 142 together form a flame transmission channel 121. The flame transmission channel 121 is open on three sides. The top wall of the intermediate flame cover 12 forms the top wall of the flame transmission channel 121, hiding the flame transmission channel 121 at the lower end of the intermediate flame cover 12. One end is connected to the inner flame cover 11, and the other end is connected to the outer flame cover 13.

[0035] In a further embodiment, the bottom ends of the middle flame cover 12 and the outer flame cover 13 are provided with flame transfer grooves 123 and flame transfer holes 124 to transfer the flames of the inner and outer rings of the flame cover. The flame transfer channel 121 also includes flame transfer grooves 123 and cross-sectional channels communicating with flame transfer grooves 123.

[0036] Specifically, the bottom end of the intermediate flame cap 12 is recessed with a flame transfer groove 123. The flame transfer groove 123 extends from the side wall of the ignition chamber 122 along the intermediate flame cap 12 to the intermediate gas passage 127 and communicates with it. The cross-sectional passage is located on the bottom side of the flame transfer groove 123 and can communicate with the cross-sectional passage through a channel set in the flame transfer groove 123, or through the bottom opening of the flame transfer groove 123. The flame transfer groove 123 and the cross-sectional passage are basically parallel. The cross-sectional passage extends from the side wall of the ignition chamber 122 along the circumference of the outer flame cap, and the extension distance is greater than the distance from the flame transfer groove 123 to the intermediate gas passage 127, so that the cross-sectional passage and the intermediate gas passage 127 are connected, and the gas can flow out from the cross-sectional passage formed by the body of the intermediate flame cap 12. Preferably, the extension distance of the cross-sectional passage is slightly greater than the extension distance of the flame transfer groove 123, so that the other end of the cross-sectional passage is set close to the ignition chamber 122. The upper side of the cross-sectional passage is provided with a flame transfer hole 124, through which... Flame transfer holes 124 and cross-sectional channels located on the inner and outer sides of the middle flame cap 12 cooperate to transfer the flame between the inner and outer sides of the flame cap, and simultaneously transfer the flame to the outer periphery of the inner flame cap 11 and the inner periphery of the outer flame cap 13 for ignition. A flame transfer channel 121 is provided on the outer flame cap 13 at a position relative to the flame transfer holes 124 of the middle flame cap 12. A flame transfer hole 124 is provided in the flame transfer channel 121. A flame transfer groove 123 is provided on the outer peripheral sidewall of the outer flame cap 13, which communicates with the flame transfer channel 121. The fire transmission hole 124 is recessed on the outer peripheral side wall of the outer flame cover 13 and communicates with the fire transmission groove 123. The fire transmission hole 124 ignites the gas in the fire transmission groove 123 and then ignites the outer peripheral flame of the outer flame cover 13. The fire transmission channel 121 set at the bottom of the flame cover prevents overflow and other debris from blocking the fire transmission channel. The fire transmission groove 123 is hidden in the fire transmission channel or set at the bottom of the flame cover to prevent overflow and other debris from blocking the fire transmission groove 123 and affecting normal fire transmission.

[0037] In a further embodiment, a flame stabilizing groove is recessed on the outer wall of the burner cap, and the flame stabilizing groove is connected to the gas passage to output gas.

[0038] Specifically, an inner flame stabilizing groove 113 is recessed on the outer wall of the inner flame cap 11. The inner flame stabilizing groove 113 is connected to the inner gas passage 111 through an inner flame stabilizing hole. The inner flame stabilizing groove 113 is located below the inner flame hole and extends circumferentially. The cross-section of the inner flame stabilizing groove 113 is circular. Similarly, a middle flame stabilizing groove 126 is recessed on the outer wall of the middle flame cap 12 and is connected to the middle gas passage 127. The middle flame stabilizing groove 126 is located below the outer flame hole of the middle flame cap 12. An outer flame stabilizing groove 137 is also recessed on the inner wall of the outer flame cap 13. The outer flame stabilizing groove 137 is located below the inner flame hole of the outer flame cap 13. The flame stabilizing groove improves the stability of flame combustion.

[0039] Furthermore, although the above embodiment is illustrated using a burner with three flame caps as an example, this is not limiting. The number of flame caps is not limited and can be 2, 4, or other suitable numbers. In addition to the inner flame cap, the outer flame caps located around the inner flame cap can also be the first outer flame cap, the second outer flame cap, and so on. Any scheme that includes the ignition channel and ignition needle of this invention should be included within the protection scope of this invention.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A gas stove, comprising a burner head (15) and a burner cap holder mounted on the burner head (15), the burner cap holder comprising an inner burner cap (11) and at least one outer burner cap surrounding its outer periphery, characterized in that: The outer flame cap is provided with an ignition cavity (122) that penetrates at least the inner and outer side walls. An ignition needle (21) is disposed in the ignition cavity (122). The ignition cavity (122) is provided with a flame transmission channel (121) for transmitting flame to the flame hole of the outer flame cap. The flame transmission channel (121) is connected to the gas passage.

2. A gas stove according to claim 1, characterized in that: The ignition chamber (122) has at least one ignition hole (128) on its peripheral wall that communicates with the gas passage. The flame from the ignition hole (128) ignites the flame holes on the inner and outer walls of the outer flame cap through the flame transmission passage (121).

3. A gas stove according to claim 2, characterized in that: The ignition hole (128) is located on the side wall of the ignition chamber (122). The fire transmission channel (121) extends along the side wall of the ignition chamber (122) to the inner and outer side walls of the outer flame cover. The inner and outer side walls of the outer flame cover are provided with fire transmission holes (124). The fire transmission holes are located on the upper side of the fire transmission channel (121).

4. A gas stove according to any one of claims 1-3, characterized in that: The fire transmission channel (121) includes a portion extending from the side wall of the ignition chamber (122) along the circumference of the outer flame cover to a portion communicating with the gas passage, and a portion extending to both sides of the outer flame cover to the inner and outer side walls of the outer flame cover. Preferably, the fire transmission channel (121) includes a fire transmission groove (123) disposed on the side wall of the ignition chamber (122) and connected to the gas transmission channel, and a channel extending through the inner and outer side walls of the outer flame cap and connected to the fire transmission groove (123).

5. A gas stove according to any one of claims 1 to 3, characterized in that: The bottom end of the side wall of the ignition chamber (122) is higher than the bottom end of the outer flame cap. The flame transmission channel (121) includes a flame transmission groove (123) extending from the side wall of the ignition chamber (122) along the circumference of the outer flame cap and connecting the inner side of the gas passage, and a cross-sectional channel formed between the bottom end of the side wall of the ignition chamber (122) and the bottom end of the outer flame cap after extending a certain distance along the circumference of the outer flame cap.

6. A gas stove according to claim 5, characterized in that: The cross-sectional channel is basically parallel to the fire transmission groove (123). The distance of the cross-sectional channel extending from the bottom of the side wall of the ignition chamber (122) along the circumferential direction of the outer flame cover is greater than the extension length of the fire transmission groove (123) and it is close to the ignition chamber (122). The fire transmission hole (124) is located on the upper side of the cross-sectional channel.

7. A gas stove according to claim 5 or 6, characterized in that: The bottom opening of the fire transmission groove (123) is connected to the cross-sectional channel to form an integral fire transmission channel (121).

8. A gas stove according to any one of claims 1-7, characterized in that: The bottom of the outer flame cap is provided with a gas distribution plate (14), and the bottom of the gas distribution plate (14) is provided with a gas distribution disk (141). The gas distribution plate (14) and the gas distribution disk (141) are provided with a notch (142) corresponding to the position of the ignition chamber (122). The ignition needle (21) passes through the notch (142) and is located inside the ignition chamber (122).

9. A gas stove according to claim 8, characterized in that: The notch (142) of the gas distributor (14) and the gas distributor plate (141) together with the ignition chamber (122) of the outer flame cap form a through chamber with an opening at the lower end.

10. A gas stove according to any one of claims 1-9, characterized in that: The outer flame cover is provided in two parts, including a first outer flame cover and a second outer flame cover. The second outer flame cover is arranged around the outer periphery of the first outer flame cover. The inner side of the second outer flame cover is provided with a flame transmission hole (124) opposite to the outer flame hole of the first outer flame cover. The bottom end of the second outer flame cover is provided with a flame transmission channel (121) that connects the inner and outer sides of the second outer flame cover. The flame inside the second outer flame cover ignites the outer flame hole through the flame transmission channel (121).

Images