Gas stove

By designing a bendable part and a limiting component for the support arm on the flange of the gas stove chassis, the problems of inconvenient installation of built-in gas stoves and easy loss of limiting components are solved, thus achieving stable installation and fixed position of the gas stove during use.

CN223579952UActive Publication Date: 2025-11-21HANGZHOU ROBAM APPLIANCES CO LTD
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Patent Information

Application Number
CN202423269064.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-11-21
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

When replacing existing built-in gas stoves, it is necessary to select or adjust them according to the size of the stove opening, which makes installation inconvenient and the limiting parts are easy to be lost, making it impossible to effectively stabilize the position of the gas stove.

Method used

Design a gas stove structure including a chassis and a flange. The flange has an opening. The limiting component consists of a bendable part and a support arm. It is installed through the opening on the flange and contacts the stove surface to achieve stable positioning of the gas stove and avoid the loss of additional limiting components.

Benefits of technology

The gas stove's own structure ensures stable positioning, reduces shaking, improves installation convenience, avoids inconvenience caused by the loss of limiting parts, and enhances the stability of the gas stove during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gas stoves, in particular to a gas stove which comprises a base plate and a turnup mounted on the outer edge of the base plate, the base plate is used for extending into an opening of a cooking bench, the turnup is used for being in lap joint with a table top of the cooking bench, the gas stove further comprises a limiting piece, and the limiting piece comprises a bendable part and a supporting arm which are connected with each other. An opening penetrating through the turned edge in the first direction is formed in the turned edge, the limiting piece is located in the opening, the bendable part is fixedly connected with the edge of one side of the opening so that the supporting arm can stretch out of the opening from the side, facing the table top of the cooking bench, of the turned edge, and the first direction is perpendicular to the turned edge. The utility model aims to provide the gas stove aiming at at least one technical problem related in the prior art.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas stoves, in particular to a gas stove. BACKGROUND

[0002] In order to avoid the problem that the gas stove will shake during use, the size of the opening of the cooking bench needs to be determined according to the size of the bottom plate of the existing embedded gas stove. However, there are various sizes of the bottom plate of the gas stove on the market. When the consumer needs to replace the gas stove, the consumer often needs to select a suitable gas stove according to the size of the opening of the existing cooking bench, or needs to adjust the opening of the cooking bench, which is inconvenient. In view of this problem, a limiting piece is currently installed on the cooking bench to limit the distance between the cooking bench and the larger opening, so that the cooking bench is not easy to shake during use. However, the limiting piece is easy to lose when the user installs the gas stove, which is inconvenient for the user. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve at least one technical problem involved in the background art, and provides a gas stove.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution:

[0005] The present application provides a gas stove, which comprises a bottom plate and a turned-up edge installed on the outer edge of the bottom plate. The bottom plate is used to extend into the opening of the cooking bench, and the turned-up edge is used to overlap the cooking bench top. The gas stove further comprises a limiting piece, which comprises a bendable part and a supporting arm connected to each other. An opening is formed on the turned-up edge, which penetrates the turned-up edge in a first direction. The limiting piece is located in the opening. The bendable part is fixedly connected to one side edge of the opening, so that the supporting arm can extend out of the opening from the side of the turned-up edge facing the cooking bench top. The first direction is perpendicular to the turned-up edge.

[0006] Optionally, the limiting piece and the bottom plate are arranged in a second direction, and the bendable part and the supporting arm are arranged in a third direction in the opening. The first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0007] The beneficial effects of this technical solution are as follows: the bendable part and the supporting arm are arranged in the second direction in the opening. The supporting arm extending out of the opening after the bendable part is bent may rotate in the second direction. After the supporting arm abuts against the edge of the opening of the cooking bench, it is difficult to stably limit the position of the gas stove. In the present application, the bendable part and the supporting arm are arranged in the third direction in the opening. Therefore, the abutting direction of the supporting arm and the edge of the opening of the cooking bench avoids the bending direction of the bendable part, so as to achieve the purpose of stably limiting the position of the gas stove.

[0008] Optionally, the gas stove provided by the embodiment of the present application comprises a plurality of limiting members, and a plurality of openings are formed on the flange, and each of the limiting members is installed in each of the openings.

[0009] The beneficial effects of the technical solution are that: in this way, the appropriate limiting member can be selected according to the size of the opening of the cooking bench and the size of the gas stove, so as to minimize the possibility of the gas stove shaking during use.

[0010] Optionally, a first opening group and a second opening group are formed on the flange, the first opening group and the second opening group each comprise at least two openings, the openings in the first opening group and the openings in the second opening group are staggered arranged in the second direction, and the openings in the first opening group and the openings in the second opening group are separated from each other in the third direction.

[0011] The beneficial effects of the technical solution are that: in this way, the distance between the two openings in the same opening group adjacent in the second direction is relatively large, which reduces the weakening of the flange strength caused by the openings on the flange to a certain extent.

[0012] Optionally, an inner support rib and an outer support rib extending along the length direction of the flange are arranged on the flange, and the inner support rib and the outer support rib protrude from the side of the flange facing the cooking bench top in the first direction.

[0013] The beneficial effects of the technical solution are that: in this way, the flange is lapped on the cooking bench top by the inner support rib and the outer support rib, when there are a plurality of limiting members, the positions of a part of the limiting members not used may overlap with the cooking bench top, and due to the support of the inner support rib and the outer support rib, the limiting members are not easy to directly contact with the cooking bench top, thereby avoiding damage to the limiting members not used and damage to the cooking bench top.

[0014] Optionally, two limiting members are installed in the opening, and the two limiting members are installed on two edges of the opening opposite in the third direction.

[0015] The beneficial effects of the technical solution are that: in this way, when abutting against the edge of the opening of the cooking bench, both of the limiting members can form a support point, so that the gas stove can be stably supported on the edge of the opening of the cooking bench, and the gas stove is not easy to shake during use.

[0016] Optionally, a gap is left between the two limiting members in the third direction, and the support arm gradually inclines to the side of the cooking bench top from one end of the support arm close to the bendable part to the other end close to the gap.

[0017] The beneficial effects of the technical solution are that a gap is left between the two limiting members and the support arm is inclined to be arranged, so that the user can bend the limiting member by inserting the fingers into the gap, thereby improving convenience and operation efficiency.

[0018] Optionally, one side edge of the opening in the third direction is a mounting edge, the bendable part is connected with the mounting edge, one end of the support arm away from the bendable part in the third direction is a free end, and the free end extends to an edge of the opening opposite to the mounting edge.

[0019] The beneficial effects of the technical solution are that in this way, the support arm has a larger length, and the support arm with a larger length has a larger overlap when abutting against the opening edge of the cooking bench, thereby improving the stability of the gas stove limiting.

[0020] Optionally, the support arm comprises a main plate part and a limiting plate part connected with each other, the main plate part is connected with the bendable part, the limiting plate part is located on one side of the main plate part away from the bottom disc in the second direction, and the main plate part is perpendicular to the limiting plate part.

[0021] The beneficial effects of the technical solution are that in this way, the support arm can abut against the edge of the opening of the cooking bench through the limiting plate part, the contact area is increased relative to the edge of the opening of the cooking bench directly contacting the edge of the opening of the cooking bench through the main plate part, thereby improving the stability of the gas stove limiting.

[0022] Optionally, a notch is arranged at a position of the main plate part close to the limiting plate part.

[0023] Optionally, the limiting member further comprises a support end fixed to the support arm, the support end is arranged on both sides of the support arm in the second direction, and the support end is arranged close to the bendable part.

[0024] The beneficial effects of the technical solution are that in this way, after the limiting member is bent at the bendable part, the support end and the support arm are both located below the bendable part, when the support arm abuts against the edge of the opening of the cooking bench, if the gas stove moves in the second direction and the edge of the opening of the cooking bench presses the support arm, the support end will abut against the turned edge, based on the support of the support arm, the support arm is not easy to be broken under the pressing.

[0025] Optionally, inner and outer support ribs extending along the length direction of the turned edge are arranged on the turned edge, the inner and outer support ribs both protrude from the side of the turned edge facing the cooking bench top in the first direction; the distance between the edge of the support end close to the free end and the mounting edge is not greater than the height of the inner and outer support ribs in the first direction.

[0026] The beneficial effects of the technical solution are that the inner support rib and the outer support rib lift the support end to a certain height, so that the support end is less likely to interfere with the cooktop surface, and in turn, the support end is less likely to damage the cooktop surface or be damaged by contact with the cooktop surface.

[0027] The technical solution provided by the present application can achieve at least one of the following beneficial effects:

[0028] The gas stove provided by the present application, before being installed in the opening of the cooktop, the bendable part of the limiting piece is bent, the supporting arm of the limiting piece extends out of the corresponding opening on the side of the flange facing the cooktop surface, and then the bottom disc of the gas stove is installed into the opening of the cooktop, so that the supporting arm extending out of the opening abuts against the edge of the opening of the cooktop, thereby limiting the position of the gas stove. Alternatively, the bottom disc of the gas stove can be installed into the opening of the cooktop first, and then the relative position of the gas stove and the opening of the cooktop is adjusted so that the limiting piece is not blocked by the cooktop surface, and then the bendable part of the limiting piece is bent, and the supporting arm extends out of the opening on the side of the flange facing the cooktop surface, so that the supporting arm abuts against the edge of the opening of the cooktop to limit the position of the gas stove. In this way, the position of the gas stove can be limited by the structure of the gas stove itself, without the need for a limiting piece outside the gas stove to limit the position of the gas stove, thereby avoiding the inconvenience caused to the user due to the loss of the limiting piece and the inability to limit the position of the gas stove.

[0029] The additional technical features of the present application and their advantages will be more apparent in the following description or can be understood through specific implementation of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the specific embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating laborious work.

[0031] Figure 1 Part of the structure schematic diagram of one embodiment of the gas stove provided by the present application;

[0032] Figure 2 Part of the structure schematic diagram of another embodiment of the gas stove provided by the present application;

[0033] Figure 3 Part of the structure schematic diagram of another embodiment of the gas stove provided by the present application;

[0034] Figure 4Another embodiment of the gas stove provided by the present application is a schematic diagram of the structure of the part installed in the opening of the cooking table;

[0035] Figure 5 A schematic diagram of the structure of the part installed in the opening of the cooking table of the third embodiment of the gas stove provided by the present application is shown in FIG. 8.

[0036] Figure 6 A schematic diagram of the structure of the part installed in the opening of the cooking table of the third embodiment of the gas stove provided by the present application is shown in FIG. 8.

[0037] Figure 7 A schematic diagram of the structure of the part installed in the opening of the cooking table of the third embodiment of the gas stove provided by the present application is shown in FIG. 8.

[0038] Reference signs:

[0039] 01, limiting member; 02, outer support rib;

[0040] 03, dimension value; 04, support rib;

[0041] 05, bottom disc; 06, flange;

[0042] 07, opening; 08, limiting plate part;

[0043] 09, bendable part; 10, notch;

[0044] 11, support arm; 12, gap;

[0045] 13, support end; 14, main body plate part;

[0046] 100, cooking table top; 200, edge of the opening of the cooking table. DETAILED DESCRIPTION

[0047] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] As shown in Figures 1 to 7 The present application provides a gas stove, which comprises a bottom disc 05 and a turned-up edge 06 mounted on the outer edge of the bottom disc 05, the bottom disc 05 is used to extend into the opening of the cooking bench, the turned-up edge 06 is used to overlap the cooking bench top 100, the gas stove further comprises a limiting piece 01, the limiting piece 01 comprises a bendable part 09 and a supporting arm 11 connected with each other, an opening 07 is formed on the turned-up edge 06, the opening 07 penetrates the turned-up edge 06 in a first direction, the limiting piece 01 is located in the opening 07, the bendable part 09 is fixedly connected with one side edge of the opening 07, so that the supporting arm 11 can extend out of the opening 07 from the side of the turned-up edge 06 facing the cooking bench top 100, and the first direction is perpendicular to the turned-up edge 06.

[0051] It can be understood that the turned-up edge 06 is a plate-shaped part.

[0052] The gas stove provided in the application is first bent at the bendable part 09 of the limiting part 01 before being installed in the opening of the cooking bench, so that the supporting arm 11 of the limiting part 01 extends out of the corresponding opening 07 on the side of the flange 06 facing the cooking bench top 100, and then the bottom disc 05 of the gas stove is installed in the opening of the cooking bench, so that the supporting arm 11 extending out of the opening 07 abuts against the edge 200 of the opening of the cooking bench, thereby limiting the position of the gas stove. Alternatively, the bottom disc 05 of the gas stove is first installed in the opening of the cooking bench, and then the relative position of the gas stove and the opening of the cooking bench is adjusted so that the limiting part 01 is not blocked by the cooking bench top 100, and then the bendable part 09 of the limiting part 01 is bent, and the supporting arm 11 extends out of the opening 07 from the side of the flange 06 facing the cooking bench top 100, so that the supporting arm 11 abuts against the edge of the opening of the cooking bench to limit the position of the gas stove. In this way, the position of the gas stove can be limited by the structure of the gas stove itself, without the need for a limiting part 01 outside the gas stove to limit the position of the gas stove, thereby avoiding the inconvenience caused to the user due to the loss of the limiting part 01 and the inability to limit the position of the gas stove.

[0053] Optionally, the limiting part 01 and the bottom disc 05 are arranged in a second direction, and the bendable part 09 and the supporting arm 11 are arranged in a third direction in the opening 07, and the first direction, the second direction and the third direction are perpendicular to each other. If the bendable part 09 and the supporting arm 11 are arranged in the second direction in the opening 07, the supporting arm 11 extending out of the opening 07 after the bendable part 09 is bent may rotate in the second direction, and it is difficult to stably limit the position of the gas stove after the supporting arm 11 abuts against the edge 200 of the opening of the cooking bench. In the application, the bendable part 09 and the supporting arm 11 are arranged in the third direction in the opening 07, so that the direction in which the supporting arm 11 abuts against the edge 200 of the opening of the cooking bench avoids the bending direction of the bendable part 09, thereby achieving the purpose of stably limiting the position of the gas stove.

[0054] Optionally, the gas stove provided in the embodiment of the application includes a plurality of limiting parts 01, and a plurality of openings 07 are provided on the flange 06, and each limiting part 01 is installed in each opening 07. In this way, appropriate limiting parts 01 can be selected according to the size of the opening of the cooking bench and the size of the gas stove, so as to minimize the possibility of the gas stove shaking during use. In the embodiment of the application, the flange 06 is provided around the bottom disc 05, and the limiting part 01 is provided on each flange 06.

[0055] Optionally, a first opening group and a second opening group are formed on the flange 06, each of the first opening group and the second opening group comprises at least two openings 07, each of the openings 07 in the first opening group and each of the openings 07 in the second opening group are staggered arranged in the second direction, and each of the openings 07 in the first opening group and each of the openings 07 in the second opening group are separated from each other in the third direction. It can be understood that, since each limiting piece 01 is correspondingly arranged in each opening 07, the arrangement mode of each limiting piece 01 corresponds to the arrangement mode of each opening 07. In this way, the distance between two openings 07 in the same opening group which are adjacent in the second direction is relatively large, which reduces the weakening of the strength of the flange 06 caused by the openings 07 on the flange 06 to a certain extent. In the embodiment of the present application, preferably, a size value 03 is arranged at the position of each opening 07 to mark the size of the cooking bench corresponding to the limiting piece 01 in the opening 07, so as to facilitate the user to select the appropriate limiting piece 01.

[0056] Optionally, an inner support rib 04 and an outer support rib 02 extending along the length direction of the flange 06 are arranged on the flange 06, and the inner support rib 04 and the outer support rib 02 protrude from the side of the flange 06 facing the cooking bench top 100 in the first direction. In this way, the flange 06 is overlapped on the cooking bench top 100 through the inner support rib 04 and the outer support rib 02. When there are multiple limiting pieces 01, the positions of a part of the limiting pieces 01 which are not used may overlap the cooking bench top 100. Since the inner support rib 04 and the outer support rib 02 provide support, the limiting piece 01 is not easy to directly contact the cooking bench top 100, and thus the damage of the limiting piece 01 which is not used and the damage of the cooking bench top 100 are avoided.

[0057] Optionally, two limiting pieces 01 are arranged in each opening 07, and the two limiting pieces 01 are correspondingly arranged on two edges of the opening 07 which are oppositely arranged in the third direction. In this way, when the edge 200 of the cooking bench opening is abutted, the two limiting pieces 01 can form support points, so that the gas stove can be stably supported on the edge 200 of the cooking bench opening, and the gas stove is not easy to shake during use.

[0058] Optionally, a gap 12 is left between the two limiting pieces 01 in the third direction, and the support arm 11 gradually inclines to the side of the cooking bench top 100 from the end of the support arm 11 close to the bendable part 09 to the end close to the gap 12. The gap 12 left between the two limiting pieces 01 and the inclined arrangement of the support arm 11 facilitate the user to insert the fingers into the gap 12 to bend the limiting piece 01, and improve the convenience and operation efficiency.

[0059] Optionally, one side edge of the opening 07 in the third direction is a mounting edge, the bendable part 09 is connected with the mounting edge, one end of the support arm 11 away from the bendable part 09 in the third direction is a free end, and the free end extends to an edge of the opening 07 opposite to the mounting edge. In this way, the support arm 11 has a greater length, and the support arm 11 with a greater length has a greater overlap when abutting against the opening edge of the cooking table, thereby improving the stability of the gas stove limiting.

[0060] Optionally, the support arm 11 comprises a main plate part 14 and a limiting plate part 08 connected with each other, the main plate part 14 is connected with the bendable part 09, the limiting plate part 08 is located on one side of the main plate part 14 away from the bottom disc 05 in the second direction, and the main plate part 14 is perpendicular to the limiting plate part 08. In this way, the support arm 11 can abut against the edge 200 of the opening of the cooking table through the limiting plate part 08, the contact area is increased relative to the edge of the main plate part 14 directly contacting the edge 200 of the opening of the cooking table, thereby improving the stability of the gas stove limiting.

[0061] Optionally, a notch 10 is arranged at a position of the main plate part 14 close to the limiting plate part 08.

[0062] Optionally, the limiting part 01 further comprises a support end 13 fixed to the support arm 11, the support end 13 is arranged on both sides of the support arm 11 in the second direction, and the support end 13 is arranged close to the bendable part 09. In this way, after the limiting part 01 is bent at the bendable part 09, the support end 13 and the support arm 11 are both located below the bendable part 09, and when the support arm 11 abuts against the edge 200 of the opening of the cooking table, if the gas stove moves in the second direction and the edge of the opening of the cooking table presses the support arm 11, the support end 13 will abut against the turn-up edge 06, and the support arm 11 is not easy to be broken under the pressing action based on the support of the support end 13.

[0063] Optionally, an inner support rib 04 and an outer support rib 02 extending along the length direction of the turn-up edge 06 are arranged on the turn-up edge 06, the inner support rib 04 and the outer support rib 02 both protrude from the side of the turn-up edge 06 facing the cooking table top 100 in the first direction, and the distance between the edge of the support end 13 close to the free end and the mounting edge is not greater than the height of the inner support rib 04 and the outer support rib 02 in the first direction. In this way, the inner support rib 04 and the outer support rib 02 lift the support end 13 to a certain height, so that the support end 13 is not easy to interfere with the cooking table top 100, thereby preventing the support end 13 from damaging the cooking table top 100 and being damaged by the contact with the cooking table top 100.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. Gas hob, characterized in that The gas stove comprises a bottom plate (05) and a flange (06) mounted on the outer edge of the bottom plate (05), the bottom plate (05) is used to extend into the opening of the cooking bench, the flange (06) is used to overlap the cooking bench (100), the gas stove further comprises a limiting piece (01), the limiting piece (01) comprises a bendable part (09) and a supporting arm (11) connected with each other, an opening (07) is formed on the flange (06) and penetrates the flange (06) in a first direction, the limiting piece (01) is located in the opening (07), the bendable part (09) is fixedly connected with one side edge of the opening (07), so that the supporting arm (11) can extend out of the opening (07) from the side of the flange (06) facing the cooking bench (100), and the first direction is perpendicular to the flange (06).

2. Gas hob according to claim 1, characterized in that The limiting piece (01) and the bottom plate (05) are arranged in a second direction, and the bendable part (09) and the supporting arm (11) are arranged in a third direction in the opening (07), and the first direction, the second direction and the third direction are perpendicular to each other in pairs.

3. Gas hob according to claim 2, characterized in that First and second opening groups are formed on the flange (06), each of the first and second opening groups comprises at least two openings (07), the openings (07) in the first opening group and the openings (07) in the second opening group are arranged alternately in the second direction, and the openings (07) in the first opening group and the openings (07) in the second opening group are separated from each other in the third direction.

4. Gas hob according to claim 2 or 3, characterized in that Two limiting pieces (01) are mounted in the opening (07), and the two limiting pieces (01) are correspondingly mounted on two edges of the opening (07) arranged opposite to each other in the third direction.

5. Gas hob according to claim 4, characterized in that A gap (12) is left between the two limiting pieces (01) in the third direction, and the supporting arm (11) gradually inclines to the side of the cooking bench (100) from one end of the supporting arm (11) close to the bendable part (09) to the other end close to the gap (12).

6. Gas hob according to claim 2 or 3, characterized in that One side edge of the opening (07) in the third direction is a mounting edge, the bendable part (09) is connected with the mounting edge, one end of the supporting arm (11) away from the bendable part (09) in the third direction is a free end, and the free end extends to the edge of the opening (07) arranged opposite to the mounting edge.

7. The gas hob according to claim 6, characterized in that The supporting arm (11) comprises a main plate part (14) and a limiting plate part (08) connected with each other, the main plate part (14) is connected with the bendable part (09), the limiting plate part (08) is located on the side of the main plate part (14) away from the bottom plate (05) in the second direction, and the main plate part (14) is perpendicular to the limiting plate part (08).

8. Gas hob according to claim 7, characterized in that A notch (10) is arranged at the position of the main plate part (14) close to the limiting plate part (08).

9. The gas hob according to claim 6, characterized in that The limiting piece (01) further comprises a support end (13) fixed to the support arm (11), both sides of the support arm (11) in the second direction are provided with the support end (13), and the support end (13) is arranged close to the bendable part (09).

10. The gas hob according to claim 9, characterized in that The inner support rib (04) and the outer support rib (02) extending along the length direction of the turnup (06) are arranged on the turnup (06), and both the inner support rib (04) and the outer support rib (02) protrude from the side of the turnup (06) facing the cooktop (100) in the first direction; the distance between the edge of the support end (13) arranged close to the free end and the mounting edge is not greater than the height of the inner support rib (04) and the outer support rib (02) in the first direction.