Heat insulation cover for stove and gas stove using the heat insulation cover

Abstract

The invention relates to a heat insulation cover for a stove and a gas stove using the heat insulation cover for a stove, comprising a cover body surrounded by a central hole, the cover body comprising an upper cover and a lower cover which are matched to each other, and a cavity is at least partially formed between the upper cover and the lower cover, and is characterized in that: the lower cover has a support leg extending downward on the bottom wall corresponding to the cavity. Compared with the prior art, the invention has the advantage that as long as the support leg is arranged below the bottom wall of the cavity, the heat conduction to the support leg can be effectively reduced due to the obstruction of the cavity, thereby avoiding the heat dissipation and thus improving the energy gathering effect of the heat insulation cover, and effectively avoiding the damage to the supporting surface (such as the stove panel) caused by the high temperature of the support leg. The pot support leg of each cover body is aligned with the non-fire-emitting area of ​​the fire cover one by one, thereby fundamentally avoiding the pot support leg of the upper cover from being burned by the flame formed by the fire hole, and also avoiding the heat loss caused by the heat being transferred to the pot support leg and being conducted downward.

Description

Technical Field

[0001] The invention relates to the technical field of household kitchenware, and in particular to a heat insulation cover for a stove and a gas stove having the heat insulation cover for the stove. Background Art

[0002] In order to make the legs of the pot support avoid the fire hole, avoid high smoke caused by flame burning and low efficiency caused by heat loss; the existing mainstream practice is to limit the fire cover and the pot support through a limiting structure, such as a Chinese utility model "Pot Support Device and Gas Cooker" with patent number ZL201721263456.2 (authorization announcement number CN207299063U), which discloses a pot support device and a gas cooker, the gas cooker includes a burner, the pot support device includes a liquid tray, a pot support and a connecting piece, the liquid tray is set on the burner, and the pot support includes a The bracket ring and the bracket arranged on the bracket ring, the bracket forms a first positioning structure, one end of the connecting member is fixed to the liquid tray, and the other end of the connecting member forms a second positioning structure, the second positioning structure cooperates with the first positioning structure to limit the radial movement of the pot bracket supported on the second positioning structure along the bracket ring, so that the pot bracket will not slide left and right or forward and backward relative to the burner and the first liquid tray, thereby improving the stability of the pot bracket placement, and then preventing the pot bracket from tilting during use, thereby causing the cooker to flip, and even causing the risk of gas leakage and explosion. The pot bracket ensures that the relative position of the fire cover and the pot bracket remains unchanged by limiting the translation or rotation of the pot bracket, and at the same time, no fire hole is set in the area corresponding to the pot bracket, so that the flame is away from the pot bracket foot piece. If the user places the pot bracket incorrectly during the cleaning and assembly process, it is still inevitable that the pot bracket foot piece will be burned by the flame formed by the fire hole, which is easy to cause excessive smoke.

[0003] In addition, in the actual use of the existing gas stove, since the pot is placed on the pot support for heating, there is a certain space between the pot and the burner. In this way, in addition to being used to heat the pot, a considerable part of the heat energy generated by the combustion of the gas escapes into the surrounding environment, causing energy waste. In order to solve the above problems, some heat-collecting and energy-gathering devices have appeared in China in recent years, such as "Energy-gathering ring for gas stove and gas stove with it" disclosed in Chinese patent CN203404823U, and "A kind of energy-gathering gas stove" disclosed in Chinese patent CN204042984U, which also has an energy-gathering pot support. Although the above-mentioned energy-gathering ring structure can reduce the consumption of heat energy to a certain extent, the heat insulation cover for the stove lacks a positioning structure, and the foot piece of the pot support leg may still be burned by the flame formed by the fire hole due to the wrong placement of the heat insulation cover for the stove, which may easily lead to excessive smoke. For this reason, the existing heat insulation cover for the stove needs to be further improved. The present applicant proposes a stove heat insulation cover structure which combines a pot support and an energy gathering ring structure, such as the Chinese invention patent No. ZL201711260487.7 (authorization announcement No. CN109869782U) entitled "A stove heat insulation cover and a stove using the stove heat insulation cover" which discloses a ring-shaped cover body, wherein the cover body is a double-layer structure consisting of an upper cover and a lower cover, a cavity is formed between the upper cover and the lower cover, pot legs arranged at intervals along the circumferential direction are fixed to the upper surface of the upper cover, and built-in pot legs are fixed on the heat insulation cover, so that the heat absorbed by the pot legs can heat the pot bottom as much as possible through heat conduction while reducing the heat loss of the flame, but the stove heat insulation cover lacks a positioning structure, and the pot legs may still be burned by the flame formed by the fire hole due to the incorrect placement of the stove heat insulation cover, which may easily lead to excessive smoke. Therefore, it is necessary to further define the existing stove heat insulation cover. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a heat insulation cover for a stove which can effectively reduce the heat conducted to its legs 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 which is equipped with the above-mentioned stove heat insulation cover and can effectively keep the pot legs away from the fire hole in view of the above-mentioned existing technical status.

[0006] In order to solve the first technical problem, the technical solution adopted by the present invention is: the heat insulation cover for the stove includes a cover body surrounded by a central hole, the cover body includes an upper cover and a lower cover that are matched to each other, and a cavity is at least partially formed between the upper cover and the lower cover, characterized in that: the lower cover has a downwardly extending support foot on the bottom wall corresponding to the cavity.

[0007] Among them, the feet can be at least three and arranged at intervals in the circumferential direction, or can be an integral annular foot, or in other forms in the prior art.

[0008] In order to further reduce the heat conduction to the feet, the upper cover also has a pot foot extending upward on the top wall corresponding to the cavity. In this way, when heat is conducted from the bottom of the pot to the pot foot, due to the existence of the cavity, the heat on the pot foot is not easily conducted to the feet through the upper cover and the lower cover. The pot foot and the feet can be aligned vertically for visual unity, which is more convenient for the heat insulation cover to be accurately placed on the stove surface, or they can be not aligned as long as the pot foot and the feet both correspond to the cavity.

[0009] In order to further reduce the heat conduction to the feet, a connecting structure for connecting the upper cover and the lower cover integrally can be provided in the cavity.

[0010] The connecting structure can adopt the following method: the upper cover has a downward-extending upper connecting seat on the inner wall corresponding to the cavity, and the connecting piece penetrates through the feet from bottom to top and is connected integrally with the upper connecting seat.

[0011] Furthermore, the feet can have a concave cavity recessed from bottom to top, so as to have a longitudinal section in the shape of "Ji", and a lower connecting seat is arranged in the concave cavity. The connecting piece penetrates through the lower connecting seat from bottom to top and is connected integrally with the upper connecting seat. Since the above connecting structure is arranged in the cavity, when heat is conducted from the bottom of the pot through the pot foot and the upper cover to the upper connecting seat, it will be dissipated in the cavity, thereby reducing the heat conducted to the connecting piece and the lower connecting seat. And since the lower connecting seat is located in the "Ji"-shaped concave cavity of the feet, the heat conducted to the lower connecting seat is not easily directly transferred to the feet.

[0012] Furthermore, a nut seat can be embedded in the upper connecting seat, and the connecting piece can adopt a screw and be threadedly connected with the nut seat.

[0013] In order to further reduce the heat conduction between the upper cover and the lower cover, the upper cover and the lower cover have a circumferential annular seam at the junction of the inner peripheral edge or the outer peripheral edge for communicating the central hole with the outside atmosphere.

[0014] At least one of the upper cover and the lower cover is provided with protruding portions protruding toward the other party at intervals in the circumferential direction near the inner peripheral edge or the outer peripheral edge, so as to form the annular seam. The existence of the above annular seam effectively reduces the heat conduction between the upper cover and the lower cover, and thus finally reduces the heat conduction to the feet.

[0015] To solve the second technical problem, the present invention provides a gas stove using the above-mentioned stove heat insulation cover, comprising a panel and a burner, wherein the panel has a mounting hole for installing the burner, the burner has a fire cover and is accommodated in the central hole of the heat insulation cover, and the fire cover has a non-fire-emitting area corresponding to the pot support leg, and is characterized in that: the cover body is placed on the panel, the bottom wall of the lower cover has a positioning piece extending downward, and the panel correspondingly has a positioning recessed portion for the positioning piece to fit into, so that the pot support leg of the cover body is aligned with the non-fire-emitting area of ​​the fire cover.

[0016] Furthermore, in order to prevent the positioning member from affecting the stability of the cover body supported by the supporting feet at the bottom of the cover body, preferably, the positioning member is arranged at the bottom of the lower cover, and the distance (L1) between the lowest point of the positioning member and the plane where the bottom of the cover body is located is less than or equal to the distance (L2) between the lowest point of each of the supporting feet (121) and the plane where the bottom of the cover body (1) is located.

[0017] Preferably, there are at least three positioning members, and they are aligned with the corresponding supporting feet. The positioning members and the supporting feet can be aligned along the radial direction of the cover body so as to be visually unified, which is more convenient for accurately placing the heat insulation cover on the stove surface. The positioning members and the supporting feet can be aligned with the pot supporting feet, or they can be not aligned. If the three are aligned one by one, since the pot supporting feet can avoid the fire hole, the heat accumulated by the pot supporting feet during the combustion process can be reduced and transferred downward to the supporting feet and positioning members, thereby reducing the heat transferred downward to the panel or the liquid tray by the supporting feet, which is not easy to cause the temperature rise problem of the panel.

[0018] In order to facilitate the alignment of the positioning member and the supporting feet, preferably, the positioning member includes a vertical portion for positioning the direction of the cover body and a transverse portion connected to the inner ends of the corresponding supporting feet.

[0019] Furthermore, the lowest points of the vertical parts of two adjacent positioning members are at different distances from the plane where the cover is located. In the case where there are at least three positioning members, the lowest points of the vertical parts of two adjacent positioning members are at different distances from the plane where the cover is located. Since the lowest points of the vertical parts of two adjacent positioning members are at different distances from the plane where the cover is located, when the positioning members are not placed in the correct position, other placement methods will cause the heat insulation cover to be unstable.

[0020] Furthermore, a liquid receiving pan is arranged on the panel, and the liquid receiving pan includes a pan body, and a guide portion protruding from the pan body surface is provided at the central position of the pan body, and the guide portion has a central hole for exposing the burner, and the pan body has an edge portion on the periphery of the guide portion for the cover body to rest, and the guide portion has at least three recesses for positioning the vertical portion of the positioning member, and the recesses constitute the positioning recessed portion.

[0021] Compared with the prior art, the advantage of the present invention is that as long as the legs are arranged under the bottom wall of the cavity, the heat conduction to the legs can be effectively reduced due to the barrier of the cavity, thereby avoiding the heat dissipation and thus improving the energy gathering effect of the heat insulation cover, and effectively avoiding the damage to the supporting surface (such as the stove panel) caused by the high temperature of the legs. In addition, the present invention also provides a gas stove using the above-mentioned stove heat insulation cover, and the pot legs of each cover body are aligned with the non-fire-emitting area of ​​the fire cover one by one, thereby fundamentally avoiding the pot legs of the upper cover from being burned by the flames formed by the fire holes, and also avoiding the heat loss caused by the heat being transferred to the pot legs and conducting downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a heat insulation cover for a stove in Embodiment 1 of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure at one angle;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure from another angle;

[0025] Figure 4 for Figure 1 A cross-sectional view at an angle;

[0026] Figure 5 for Figure 1 A cross-sectional view from another angle;

[0027] Figure 6 This is a schematic structural diagram of an angle of the upper cover in Embodiment 1 of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the lower cover in Example 1 of the present invention;

[0029] Figure 8 for Figure 7 A schematic diagram of the structure of the bottom of the middle and lower cover;

[0030] Fig. 9 for Figure 7 A schematic diagram of the structure of the middle and lower cover from another angle;

[0031] Fig.10 This is a schematic structural diagram of a screw seat in Embodiment 1 of the present invention;

[0032] Fig.11 This is a schematic diagram of the structure of the liquid receiving tray in Example 1 of the present invention;

[0033] Fig.12This is a schematic diagram of the structure in which the heat insulation cover for a stove is positioned on the liquid receiving tray in Example 1 of the present invention;

[0034] Fig.13 for Fig.12 A schematic diagram of the structure in which a central stove is surrounded by a heat-insulating cover and the burner is positioned on a liquid receiving tray;

[0035] Fig.14 for Fig.13 A cross-sectional view of

[0036] Fig.15 This is a schematic structural diagram of the screw seat in Example 2 of the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below with reference to the accompanying drawings.

[0038] Example 1

[0039] like Figures 1 to 14 The heat insulation cover for stoves in this embodiment comprises a cover body 1 with a central hole, the cover body 1 comprises an upper cover 11 and a lower cover 12 which are matched with each other, and a cavity 10 is formed at least partially between the upper cover 11 and the lower cover 12, and the lower cover 12 has a downwardly extending support leg 121 at the bottom wall corresponding to the cavity 10, and the support leg 121 can effectively reduce the heat conduction to the support leg 121 due to the obstruction of the cavity 10 as long as it is arranged below the bottom wall of the cavity 10, thereby avoiding the heat dissipation and thus improving the energy gathering effect of the heat insulation cover, and effectively avoiding the damage to the supporting surface (such as the stove panel) caused by the high temperature of the support leg 121, and in order to further reduce the heat conduction to the support leg 121, the upper cover 11 also has an upwardly extending pot support leg 111 at the top wall corresponding to the cavity 10. In this way, when heat is conducted from the bottom of the pot to the pot support leg 111, due to the presence of the cavity 10, the heat on the pot support leg 111 is not easily conducted to the support leg 121 through the upper cover 11 and the lower cover 12. The pot support leg 111 and the support leg 121 can be aligned vertically to be visually unified, which is more convenient for accurately placing the heat insulation cover on the stove surface, or they can be misaligned and only need to make the pot support leg 111 and the support leg 121 correspond to the cavity 10. This embodiment is described by aligning the pot support leg 111 and the support leg 121 as an example. Since the pot support leg 111 can avoid the fire hole, the heat accumulated by the pot support leg 111 during the combustion process can be reduced and conducted to the support leg 121, thereby reducing the heat conducted downward from the support leg 121 to the panel or the liquid tray 7, which is not likely to cause the temperature rise problem of the stove surface panel.

[0040] In order to further reduce the heat conduction between the upper cover 11 and the lower cover 12, the upper cover 11 and the lower cover 12 have an annular slit 14 along the circumferential direction at the junction of the inner periphery and / or the outer periphery, which is used to connect the central hole 13 with the outside atmosphere. At least one of the upper cover 11 and the lower cover 12 is provided with convex parts protruding toward the other party at intervals along the circumferential direction at a position adjacent to the inner periphery or the outer periphery, such as a first convex part 1300 located at the inner periphery of the lower cover 12, and a second convex part 1301 located at the outer periphery of the lower cover 12, so that annular slits 14 are formed at positions adjacent to the inner periphery and the outer periphery. The existence of the above annular slit 14 effectively reduces the heat conduction between the upper cover 11 and the lower cover 12, thereby ultimately reducing the heat conduction to the support foot 121. Since the cavity 10 in the prior art is a closed cavity 10, it can block the upper cover 11 from transferring heat downward to the lower cover 12, but the cavity 10 of the present solution is not only an open cavity 10, but can make the air in the cavity 10 flow slightly, which can reduce the heat accumulated in the upper cover 11 during the combustion process and conduct it to the lower cover 12, so that the heat of the pot support leg 111 is concentrated on the upper cover 11, and at the same time, it can reduce the heat of the pot support leg 111 from transferring to the support leg 121, and can also reduce the heat conducted downward from the lower cover 12 to the panel or the liquid tray 7, which is not easy to cause the temperature rise problem of the panel. In order to ensure that the annular gap 14 has enough static air layer thickness for insulation and avoid the convective heat exchange loss caused by large air flow, the annular gap 14 needs to be no larger than 2mm, which can reduce the contact area between the two layers, reduce the contact heat transfer loss, and ensure the small flow of air between the two layers.

[0041] In this embodiment, reference Figures 4 to 9In order to further reduce the heat conduction to the support leg 121, a connection structure that connects the upper cover 11 and the lower cover 12 as one can be provided in the cavity 10. The connection structure can be in the following manner: the upper cover 11 has an upper connection seat 112 extending downward on the inner wall corresponding to the cavity 10, and the connection member 3 penetrates the support leg 121 from bottom to top and is connected to the upper connection seat 112 as one. The support leg 121 can have a concave cavity 1210 that is concave from bottom to top, so as to have a longitudinal section in the shape of a "J". A lower connection seat 122 is provided in the concave cavity 1210, and the connection member 3 penetrates the lower connection seat 122 from bottom to top and is connected to the upper connection seat 112 as one. Since the above-mentioned connection structure is arranged in the cavity 10, when the heat is conducted from the bottom of the pot through the pot support legs 111 and the upper cover 11 to the upper connection seat 112, it will be dissipated in the cavity 10, thereby reducing the heat conducted to the connection member 3 and the lower connection seat 122. Since the lower connection seat 122 is located in the "J"-shaped concave cavity 1210 of the support legs 121, the heat conducted to the lower connection seat 122 is not easily directly transferred to the support legs 121. The upper connection seat 112 can be embedded with a nut seat 4, and the connection member 3 can be a screw or a limit screw, which is threadedly connected to the nut seat 4. In addition, the upper cover 11 and the lower cover 12 directly fix the upper connection seat 112 and the lower connection seat 122 through the connection member 3, and the heat conduction contact area is small. In order to reduce the number of installation parts, preferably, the bottom of the support leg 121 has a socket 1211 for the connector 3 to be inserted, the hole wall of the socket 1211 extends upward toward the upper cover 11 to form a concave cavity 1210, and the end of the hole wall of the socket 1211 extends toward the central position of the socket 1211 to form a lower connection seat 122. At the same time, the upper connection seat 112 is provided with a groove 1121 for the screw seat 4 to be inserted, wherein the screw seat 4 can move relative to the groove 1121, so as to give the connector 3 a certain degree of installation adjustability during installation. The screw seat 4 of this embodiment includes an insertion portion 42 inserted into the groove 1121 and a clamping portion 41 clamped outside the groove 1121, and the insertion portion 42 has a threaded hole 421 suitable for the limit screw. In order to give the connector 3 a certain degree of installation adjustability during installation, preferably, the edge of the insertion portion 42 gradually becomes smaller along the insertion direction of the screw seat 4. When the connecting member 3 is a limit screw, the head 31 of the limit screw is threadedly connected in the screw seat 4, and the tail 32 of the limit screw is stuck outside the lower connecting seat 122, thereby connecting the lower cover 12 to the upper cover 11. In order to prevent the hole wall of the plug hole 1211 from serving as a "conductor" for the heat insulation cover to conduct downward, at least two through holes 1213 are further provided in the hole wall of the plug hole 1211 along the circumferential direction. The through holes 1213 make the concave cavity 1210 interpenetrate with the cavity 10, thereby making it more difficult for the support leg 121 to be heat-conducted.The socket 1211 of the support leg 121 is detachably connected to the foot 5, which can prevent the heat insulation cover from impacting and sliding with the liquid tray 7 or the cooker panel, reduce shock and increase damping, and also serve as a seal for the concave cavity 1210 of the cover body 1. The upper cover 11 and the lower cover 12 are split structures and detachable, which is also convenient for anti-corrosion treatment of the interior.

[0042] As reference Fig.13 and 14In this embodiment, a gas stove using the above-mentioned heat insulation cover for stoves is also provided, including a panel and a burner 6, the panel having a mounting hole for installing the burner 6, the burner 6 having a fire cover and being accommodated in the central hole 13 of the heat insulation cover, and the fire cover 1A having a non-fire-emitting area corresponding to the pot support leg 111, the cover body 1 is placed on the panel, the bottom wall of the lower cover 12 has a positioning member 2 extending downward, and the corresponding panel 2 has a positioning recessed portion for the positioning member 2 to fall into the matching, so that the pot support leg 111 of the cover body 1 is aligned with the non-fire-emitting area of ​​the fire cover 1A. The positioning member 2 is arranged at the bottom of the lower cover 12, and the distance (L1) between the lowest point of the positioning member 2 and the plane where the bottom of the cover body 1 is located is less than or equal to the distance (L2) between the lowest point of each support leg 121 and the plane where the bottom of the cover body 1 is located. In this embodiment, there are at least three positioning members 2, each positioning member 2 is aligned with the corresponding support leg 121, wherein the positioning member and the support leg can be aligned in the radial direction along the cover body so as to be visually unified. In order to satisfy the requirement that the positioning member 2 can be both positioned and connected to the support leg 121, the positioning member 2 includes a vertical portion 21 for positioning the direction of the cover body 1 and a horizontal portion 22 connected to the inner side ends of the corresponding support legs 121, wherein the distance (L1) between the lowest point of the vertical portion 21 of the positioning member 2 and the plane where the cover body 1 is located is less than or equal to the distance (L2) between the lowest point of each support leg 121 and the plane where the cover body 1 is located. Taking four positioning members as an example, such as the first positioning member 24, the second positioning member 25, the third positioning member 26 and the fourth positioning member 27, the first positioning member 24 and the third positioning member 26 are arranged opposite to each other, and the distance (L1) between the lowest point of the vertical portion 21 of the two and the plane where the cover body 1 is located is equal to the distance (L2) between the lowest point of each support leg 121 and the plane where the cover body 1 is located. The distance (L2) between the lowest point of the support foot 121 and the plane where the cover body 1 is located, and the second positioning member 25 and the third positioning member 26 are arranged opposite to each other, and the distance (L1) between the lowest point of the vertical portion 21 of the two and the plane where the cover body 1 is located is lower than the distance (L2) between the lowest point of each support foot 121 and the plane where the cover body 1 is located. In addition, in order to avoid misplacement of the heat insulation cover, the distances between the lowest points of the vertical portions 21 of the first positioning member 24 and the second positioning member 25 and the plane where the cover body 1 is located are not equal. Since the distances between the lowest points of the vertical portions 21 of the two adjacent positioning members 2 and the plane where the cover body 1 is located are not equal, when the positioning member 2 is not placed in the correct position, other placement methods will cause the heat insulation cover to be unstable. The panel 2 is provided with a liquid receiving tray 7, which includes a tray body, a guide portion 71 protruding from the tray body surface at the center of the tray body, the guide portion 71 having a middle hole 711 for the burner 6 to be exposed, and an edge portion 72 for the cover body 1 to rest on the outer periphery of the guide portion 71, and the guide portion 71 has at least three notches 712 for positioning the positioning member 2, and the notches 712 constitute a positioning recessed portion (such as Fig.11As shown). Since the pot support leg 111, the support leg 121 and the positioning member 2 can be aligned one by one, the pot support leg 111 can effectively avoid the fire hole due to the positioning member 2, thereby avoiding heat conduction from the pot support leg 111 to the support leg 121 aligned therewith.

[0043] Example 2

[0044] The structure is basically the same as that of the embodiment 1, the only difference being that the screw seat 4 is an elastic sheet 43, the two sides of the elastic sheet 43 have bent edges to form elastic feet 431 that can be clamped in the groove 1121, and the elastic sheet 43 has a threaded hole 421 suitable for the limit screw. The elastic sheet 43 can be a flexible elastic sheet 43, and because it has the elastic feet 431 that can be clamped in the groove 1121, it can be made thinner than the screw seat 4 of the embodiment 1 to reduce the contact area of ​​heat conduction, such as Fig.15 shown.

Claims

1. A gas stove with a stove heat insulation cover, characterized in that: The invention comprises a panel and a burner (6), wherein the heat-insulating cover for a stove comprises a cover body (1) which surrounds a central hole (13), wherein the cover body (1) comprises an upper cover (11) and a lower cover (12) which are matched with each other, wherein a cavity (10) is at least partially formed between the upper cover (11) and the lower cover (12), wherein the lower cover (12) has a downwardly extending support leg (121) on the bottom wall corresponding to the cavity (10), and the upper cover (11) has an upwardly extending pot support leg (111) on the top wall corresponding to the cavity (10), wherein the panel has a mounting hole for mounting the burner (6), wherein the burner (6) has a fire cover (61) and is accommodated in the central hole (13) of the cover body (1), and wherein the fire cover (61) has a non-fire area (611) corresponding to the pot support leg (111), and wherein the cover body (1 ) is placed on a panel, the bottom wall of the lower cover (12) has a positioning piece (2) extending downward, and the panel correspondingly has a positioning recessed portion for the positioning piece (2) to fit in, so that the pot support (111) of the cover body (1) is aligned with the non-fire area of ​​the fire cover (61); a liquid receiving tray (7) is arranged on the panel, the liquid receiving tray (7) includes a tray body, the center of the tray body has a guide portion (71) protruding from the surface of the tray body, the guide portion (71) has a middle hole (711) for the burner (6) to be exposed, the tray body has an edge portion (72) on the outer periphery of the guide portion (71) for the cover body (1) to be placed, and the guide portion (71) has at least three notches (712) for positioning the vertical portion (21) of the positioning piece (2), and the notches (712) constitute the positioning recessed portion; A connection structure for connecting the upper cover (11) and the lower cover (12) into one body is provided in the cavity (10); The connection structure adopts the following method: the upper cover (11) has an upper connection seat (112) extending downward on the inner wall corresponding to the cavity (10); the connection piece (3) passes through the support leg (121) from bottom to top and is connected to the upper connection seat (112) as a whole; the bottom of the support leg (121) has a socket (1211) for inserting the connection piece (3); The upper cover (11) and the lower cover (12) have an annular slit (14) along the circumferential direction at the junction of the inner periphery and / or the outer periphery, which is used to connect the central hole (13) with the outside atmosphere; The pot support leg (111) and the support leg (121) are arranged to be aligned in the vertical direction.

2. The gas stove according to claim 1, characterized in that: The positioning member (2) is arranged at the bottom of the lower cover (12), and a first distance L1 between the lowest point of the positioning member (2) and the plane where the bottom of the cover body (1) is located is less than or equal to a second distance L2 between the lowest point of each of the supporting legs (121) and the plane where the bottom of the cover body (1) is located.

3. The gas stove according to claim 2, characterized in that: There are at least three positioning members (2), which are aligned with the corresponding supporting feet (121).

4. The gas stove according to claim 3, characterized in that: The positioning member (2) comprises a vertical portion (21) for positioning the direction of the cover body (1) and a transverse portion (22) connected to the inner ends of the corresponding supporting feet (121).

5. The gas stove according to claim 4, characterized in that: The distances between the lowest points of the vertical portions (21) of two adjacent positioning members (2) and the plane where the bottom of the cover body (1) is located are not equal.

6. The gas stove according to any one of claims 1 to 5, characterized in that: The support leg (121) has a cavity (1210) that is recessed from bottom to top, thereby having a longitudinal section in the shape of a "J". A lower connecting seat (122) is arranged in the cavity (1210), and the connecting member (3) passes through the lower connecting seat (122) from bottom to top and is connected to the upper connecting seat (112) as a whole.

7. The gas stove according to claim 6, characterized in that: The upper connecting seat (112) is embedded with a nut seat (4), and the connecting piece (3) is a screw threadedly connected to the nut seat (4).

8. The gas stove according to any one of claims 1 to 5, characterized in that: The support feet (121) are formed by the concave-convex structure of the lower cover (12) on the bottom wall of the corresponding cavity (10).

9. The gas stove according to any one of claims 1 to 5, characterized in that: At least one of the upper cover (11) and the lower cover (12) is provided with protrusions protruding toward the other side at intervals along the circumferential direction at a position adjacent to the inner periphery or the outer periphery, thereby forming the annular gap (14).

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