Fire caps, burners and gas stoves

Abstract

The utility model belongs to the technical field of gas stoves, and discloses a fire cover, a burner and a gas stove, wherein the fire cover comprises an outer fire cover, an inner fire cover and a connector. The inner fire cover is arranged on one side of the outer fire cover; one end of the connector is located on the other side of the outer fire cover, and the connector passes through the outer fire cover and is connected to the inner fire cover, so that the outer fire cover is sandwiched between the inner fire cover and one end of the connector. The fire cover, the burner and the gas stove provided by the utility model have lower processing difficulty, and improve production efficiency and qualified rate.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to a fire cover, a burner and a gas stove. Background Art

[0002] A gas stove is a common kitchen appliance that is used to heat the kitchen by burning fuel. The burner of a gas stove usually includes a burner head, an ignition needle, a gas distributor and a fire cover. The gas distributor is used to mix air and gas to form a mixed gas, and the fire cover is provided with a plurality of fire holes, where the gas burns to form a flame to heat the cooker.

[0003] In the prior art, the central area and the edge of the fire cover are provided with fire holes, and there is a hollow space between the central area and the edge area, so as to ensure sufficient mixing of gas and air on the basis of increasing the heating area, so as to ensure the combustion efficiency. At present, the fire cover includes an inner fire cover and an outer fire cover, and the inner fire cover and the outer fire cover are an integrally formed structure, that is, the inner fire cover and the outer fire cover can be manufactured in a single manufacturing process. However, in order to improve the combustion effect, the inner fire cover and the outer fire cover are provided with irregular protrusions, and the fire holes are provided on the irregular protrusions, which results in a high degree of processing difficulty of the integrally formed inner fire cover and the outer fire cover during the production and forging process, affecting the production efficiency of the fire cover, and the qualified rate of the fire cover is low.

[0004] Therefore, there is an urgent need for a fire cover, a burner and a gas stove with low processing difficulty, high production efficiency and high qualified rate. Utility Model Content

[0005] One purpose of the utility model is to provide a fire cover, which has lower processing difficulty and improves production efficiency and qualified rate.

[0006] As conceived above, the technical solution adopted by the utility model is:

[0007] Fire cover, including:

[0008] External fire cover;

[0009] An inner fire cover, the inner fire cover being arranged on one side of the outer fire cover;

[0010] A connector, one end of which is located on the other side of the outer fire cover, the connector passes through the outer fire cover and is connected to the inner fire cover, so that the outer fire cover is clamped between the inner fire cover and one end of the connector.

[0011] Optionally, the connector is provided with a fire cover central channel, the inner wall of the fire cover central channel is connected with channel transverse ribs, and the inner fire cover is connected to the channel transverse ribs.

[0012] Optionally, the connector is provided with a compensation port, and the gas in the central channel of the fire cover located on the side of the channel transverse rib away from the inner fire cover can flow out through the compensation port.

[0013] Optionally, the outer fire cover is provided with a functional hole, and the compensation port is arranged opposite to and communicated with the functional hole.

[0014] Optionally, one of the outer fire cover and the connecting body is provided with an anti-rotation structure, and the other is provided with an anti-rotation matching structure, and the anti-rotation structure cooperates with the anti-rotation matching structure to prevent the connecting body from rotating relative to the outer fire cover.

[0015] Optionally, the anti-rotation structure is a positioning groove, and the anti-rotation matching structure is a positioning protrusion, and the positioning protrusion is slidably arranged in the positioning groove along the axial direction of the outer fire cover.

[0016] Optionally, one end of the connector is located on the other side of the outer fire cover, and one end of the connector is in sealing contact with the surface of the other side of the outer fire cover.

[0017] Optionally, the connecting body is provided with an assembly hole, the inner fire cover is provided with a threaded hole, and the connecting piece passes through the assembly hole and is screwed into the threaded hole.

[0018] Another object of the utility model is to provide a burner that is easy to manufacture and has high production efficiency and qualified rate.

[0019] As conceived above, the technical solution adopted by the utility model is:

[0020] The burner comprises a gas distribution seat and the fire cover as described above, wherein the gas distribution seat is arranged on a side of the outer fire cover away from the inner fire cover and is connected to the outer fire cover.

[0021] Another object of the utility model is to provide a gas stove that is easy to manufacture and has high production efficiency and qualified rate.

[0022] As conceived above, the technical solution adopted by the utility model is:

[0023] A gas stove comprising a burner as described above.

[0024] Beneficial effects of the utility model:

[0025] The utility model provides a fire cover, a burner and a gas stove, wherein the fire cover comprises an outer fire cover, an inner fire cover and a connector, the inner fire cover is arranged on one side of the outer fire cover, one end of the connector is arranged on the other side of the outer fire cover, the connector passes through the outer fire cover and is connected to the inner fire cover, so that the outer fire cover is clamped between the inner fire cover and one end of the connector, thereby realizing the connection between the outer fire cover and the inner fire cover, the outer fire cover, the inner fire cover and the connector can all be manufactured separately and then assembled after the manufacturing is completed, because the structures of the outer fire cover, the inner fire cover and the connector are relatively simple and easy to manufacture, so that the fire cover has lower manufacturing difficulty and assembly difficulty, thereby improving the production efficiency and qualified rate of the fire cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an exploded schematic diagram of a burner provided in an embodiment of the utility model;

[0027] Figure 2 is a cross-sectional view of a burner provided by an embodiment of the utility model;

[0028] Figure 3 It is a structural schematic diagram of an outer fire cover provided by an embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the connector provided by the embodiment of the utility model Figure 1 ;

[0030] Figure 5 This is a schematic diagram of the structure of the connector provided by the embodiment of the utility model Figure 2 ;

[0031] Figure 6 It is a structural schematic diagram of the gas distributor provided by an embodiment of the utility model;

[0032] Figure 7 It is a structural schematic diagram of a burner provided in an embodiment of the utility model.

[0033] In the figure:

[0034] 100, outer fire cover; 110, positioning slide groove; 120, first annular body; 130, functional hole; 140, through hole; 150, fire cover radiation channel; 160, fire cover annular channel; 170, connecting hole; 180, air supply cavity; 200, inner fire cover; 210, cover body; 220, second annular body; 300, connecting body; 310, fire cover central channel; 320, channel transverse rib; 321, assembly hole; 330, compensation port; 340, positioning protrusion; 350, abutment surface; 360, conical surface; 400, gas distribution seat; 410, gas distribution central channel; 420, gas distribution radiation channel; 430, gas distribution annular channel; 500, connecting piece; 600, burner head; 700, ignition needle; 800, thermocouple. DETAILED DESCRIPTION

[0035] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] This embodiment provides a fire cover, which has lower processing difficulty and improves production efficiency and qualification rate.

[0041] like Figures 1 to 7 As shown, the fire cover includes an outer fire cover 100, an inner fire cover 200 and a connector 300. The outer fire cover 100 and the inner fire cover 200 are connected as a whole through the connector 300, which improves the integrity of the fire cover, facilitates the overall disassembly and assembly of the fire cover, and has high reliability and safety.

[0042] In this embodiment, the outer fire cover 100 is provided with a through hole 140, and the connector 300 can pass through the through hole 140. The inner fire cover 200 is arranged on one side of the outer fire cover 100, and when the fire cover is in use, the inner fire cover 200 is arranged above the outer fire cover 100.

[0043] One end of the connecting body 300 is located on the other side of the outer fire cover 100. The connecting body 300 passes through the through hole 140 on the outer fire cover 100 and is connected to the inner fire cover 200, so that the outer fire cover 100 is clamped between the inner fire cover 200 and one end of the connecting body 300, thereby realizing the connection between the outer fire cover 100 and the inner fire cover 200 through the connecting body 300.

[0044] It should be noted that the radial dimension of the end of the connecting body 300 located on the other side of the outer fire cover 100 is larger than the aperture of the through hole 140, so that the end of the connecting body 300 located on the other side of the outer fire cover 100 will not enter the through hole 140, and the radial dimension of the inner fire cover 200 is also larger than the aperture of the through hole 140, so that the inner fire cover 200 will not enter the through hole 140, thereby enabling the outer fire cover 100 to be clamped between the inner fire cover 200 and the end of the connecting body 300 located on the other side of the outer fire cover 100, thereby achieving a clever connection.

[0045] Optionally, one end of the connector 300 is located on the other side of the outer fire cover 100, and the one end of the connector 300 is in sealing contact with the surface of the other side of the outer fire cover 100, so that the one end of the connector 300 and the outer fire cover 100 have a larger contact area, making it more difficult for the end to enter the through hole 140, and also improving the sealing of the connection between the connector 300 and the outer fire cover 100, reducing the probability of gas leakage. In this embodiment, Figure 4 As shown, one end of the connecting body 300 has an annular abutting surface 350 , and the abutting surface 350 is used for sealing contact with the surface of one side of the outer fire cover 100 .

[0046] Optionally, the connection between the connecting body 300 and the inner fire cover 200 may be via a connecting piece 500, a snap connection, a magnetic connection, etc., which is not limited in this embodiment.

[0047] Preferably, if Figure 4As shown, the connector 300 is provided with an assembly hole 321, the inner fire cover 200 is provided with a threaded hole, and the connector 500 passes through the assembly hole 321 and is screwed into the threaded hole, so as to realize the detachable connection between the connector 300 and the inner fire cover 200, thereby reducing the difficulty of connecting the two. For example, the connector 500 is a bolt, the head of the bolt is located outside the side of the connector 300 away from the inner fire cover 200, and the threaded hole does not penetrate the inner fire cover 200, so that the top surface of the inner fire cover 200 does not need to be provided with a hole, thereby improving the aesthetics of the inner fire cover 200 and reducing the probability of gas leakage.

[0048] The fire cover provided in this embodiment includes an outer fire cover 100, an inner fire cover 200 and a connecting body 300. The inner fire cover 200 is arranged on one side of the outer fire cover 100, and one end of the connecting body 300 is arranged on the other side of the outer fire cover 100. The connecting body 300 passes through the outer fire cover 100 and is connected to the inner fire cover 200, so that the outer fire cover 100 is clamped between the inner fire cover 200 and one end of the connecting body 300, thereby realizing the connection between the outer fire cover 100 and the inner fire cover 200. The outer fire cover 100, the inner fire cover 200 and the connecting body 300 can all be manufactured separately and then assembled after the manufacturing is completed. Since the structures of the outer fire cover 100, the inner fire cover 200 and the connecting body 300 are relatively simple and easy to process and manufacture, the fire cover has lower processing difficulty and assembly difficulty, thereby improving the production efficiency and qualified rate of the fire cover.

[0049] Alternatively, if Figure 4 As shown, the connecting body 300 is provided with a fire cover central channel 310, and the fire cover central channel 310 is used to provide gas to the fire outlet of the inner fire cover 200. The inner wall of the fire cover central channel 310 is connected with a channel transverse rib 320, and the inner fire cover 200 is connected to the channel transverse rib 320, so that the connection between the inner fire cover 200 and the connecting body 300 can have a small impact on the fire cover central channel 310.

[0050] For example, the channel transverse rib 320 passes through the center of the fire cover central channel 310, and the width of the channel transverse rib 320 is smaller than the inner diameter of the fire cover central channel 310, further reducing the influence of the channel transverse rib 320 on the flow area of ​​the fire cover central channel 310.

[0051] As another example, both ends of the channel cross rib 320 are connected to the inner wall of the fire cover central channel 310 to have a high connection strength. In this embodiment, the channel cross rib 320 and the connecting body 300 are an integrally formed structure to have a high structural strength, reducing the number of components that need to be manufactured separately.

[0052] Further optionally, if Figure 4 or Figure 5As shown, the connector 300 is provided with a compensation port 330, and the gas in the central channel 310 of the fire cover located on the side of the channel cross rib 320 away from the inner fire cover 200 can flow out through the compensation port 330 to compensate for the reduction in the flow area of ​​the central channel 310 of the fire cover caused by the provision of the channel cross rib 320, thereby further reducing the influence of the channel cross rib 320 on the flow area of ​​the central channel 310 of the fire cover, so that the central channel 310 of the fire cover can provide sufficient gas to the fire outlet of the inner fire cover 200, thereby ensuring the stability and reliability of combustion.

[0053] For example, Figure 4 As shown, the compensation opening 330 extends to the end surface of the connecting body 300 close to the inner fire cover 200 to achieve a better compensation effect.

[0054] In this embodiment, Figure 1 As shown, the outer fire cover 100 is provided with a functional hole 130, and the compensation port 330 is arranged opposite to and connected to the functional hole 130, so that the gas in the central channel 310 of the fire cover can smoothly flow to the functional hole 130 through the compensation port 330, ensuring sufficient gas at the functional hole 130 and reducing flow resistance. It should be noted that the functional hole 130 can be an ignition hole or a fire protection hole, or, as Figure 1 As shown, there are two functional holes 130 , one of which is an ignition hole, and the other is a fire-preserving hole. The compensation port 330 is opposite to the two functional holes 130 .

[0055] Optionally, one of the outer fire cover 100 and the connecting body 300 is provided with an anti-rotation structure, and the other is provided with an anti-rotation matching structure, and the anti-rotation structure and the anti-rotation matching structure cooperate to prevent the connecting body 300 from rotating relative to the outer fire cover 100, so that the compensation port 330 can always be opposite to the functional hole 130. The provision of the anti-rotation structure and the anti-rotation matching structure can also achieve the positioning and installation of the outer fire cover 100 and the connecting body 300, and facilitate the assembly of the two. In addition, since the inner fire cover 200 is connected to the connecting body 300, the provision of the anti-rotation structure and the anti-rotation matching structure can also prevent the inner fire cover 200 from rotating relative to the outer fire cover 100.

[0056] Further optionally, the anti-rotation structure is a positioning groove 110, and the anti-rotation matching structure is a positioning protrusion 340. The positioning protrusion 340 is slidably arranged in the positioning groove 110 along the axial direction of the outer fire cover 100. That is, the positioning groove 110 extends along the axial direction of the outer fire cover 100, so that the matching of the positioning groove 110 and the positioning protrusion 340 can guide the connector 300.

[0057] For example, Figure 3 As shown, the positioning slide groove 110 is arranged on the outer fire cover 100. Figure 4As shown, the positioning protrusion 340 is arranged on the connecting body 300. Further, the positioning slide groove 110 extends to the surface of the outer fire cover 100 facing away from the inner fire cover 200. The positioning protrusion 340 is arranged on the side wall of the connecting body 300.

[0058] In some optional embodiments, the positioning protrusion 340 can extend from one end of the connecting body 300 to the other end. When assembling the connecting body 300 and the outer fire cover 100, the connecting body 300 is controlled to be located on the side of the outer fire cover 100 away from the inner fire cover 200. Then, the positioning protrusion 340 is aligned with the positioning groove 110. While the outer fire cover 100 is controlled to pass through the through hole 140, the positioning protrusion 340 is controlled to enter the positioning groove 110. During the process of inserting the connecting body 300 into the outer fire cover 100, the positioning protrusion 340 slides in the positioning groove 110.

[0059] In some other optional embodiments, such as Figure 4 and Figure 5 As shown, the positioning protrusion 340 is arranged at one end of the connecting body 300 away from the inner fire cover 200. When assembling the connecting body 300 and the outer fire cover 100, the connecting body 300 is first inserted into the through hole 140, and then the connecting body 300 is rotated to align the positioning protrusion 340 with the positioning groove 110, and the positioning protrusion 340 is controlled to slide into the positioning groove 110, so that the compensation port 330 can be opposite to the functional hole 130.

[0060] For example, a plurality of positioning grooves 110 are provided corresponding to the positioning protrusions 340 one by one, and each positioning protrusion 340 is slidably fixed in the corresponding positioning groove 110 to improve the reliability of anti-rotation.

[0061] In some optional embodiments, such as Figure 1 As shown, a first annular body 120 is provided on one side of the outer fire cover 100. Figure 2 As shown, the inner fire cover 200 includes a cover body 210 and a second annular body 220 disposed on the cover body 210. The second annular body 220 is disposed on the side of the cover body 210 facing the outer fire cover 100. The second annular body 220 is located between the first annular body 120 and the connecting body 300, and there is a gap between the second annular body 220 and the connecting body 300, and there is a gap between the connecting body 300 and the cover body 210. The gap between the second annular body 220 and the connecting body 300 and the gap between the connecting body 300 and the cover body 210 form an air supply cavity 180 connected to the central channel 310 of the fire cover, and the air supply cavity 180 is used to provide gas to the functional hole 130 or the fire outlet hole of the inner fire cover 200. The cover body 210 is in sealing contact with the end surface of the first annular body 120 to prevent gas leakage.

[0062] Optionally, the outer fire cover 100 is further provided with a fire cover radiation channel 150 and a fire cover annular channel 160 connected to the fire cover radiation channel 150. The fire outlet on the outer fire cover 100 is connected to the fire cover annular channel 160, and the gas in the fire cover radiation channel 150 can flow to the fire cover annular channel 160. In this embodiment, a plurality of fire cover radiation channels 150 are provided, and the plurality of fire cover radiation channels 150 are arranged at intervals along the circumference of the outer fire cover 100. In this embodiment, the fire cover central channel 310 is connected to the gas distribution central channel 410 of the gas distribution seat 400 of the burner to form a gas supply channel, and the fire cover radiation channel 150 is connected to the gas supply channel.

[0063] Alternatively, if Figure 3 As shown, the outer fire cover 100 is also provided with a connection hole 170, and the connection hole 170 is used to connect with the gas distribution seat 400. The connection hole 170 can be a threaded hole, so that the outer fire cover 100 and the gas distribution seat 400 are connected by bolts.

[0064] In this embodiment, Figure 5 As shown, the end face of the connecting body 300 facing away from the inner fire cover 200 is a conical surface 360, so that the volume of the part of the connecting body 300 located on the side of the outer fire cover 100 away from the inner fire cover 200 is smaller, which can reduce the occupancy of the air supply channel and thus ensure the air supply volume.

[0065] The present embodiment further provides a burner, comprising a gas distributor 400 and a fire cover as described above. The burner provided by the present embodiment has a relatively low manufacturing difficulty. The specific structure of the fire cover of the burner can refer to the above embodiments. Since the burner provided by the present embodiment adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0066] like Figure 1 As shown, the gas dividing seat 400 is arranged on the side of the outer fire cover 100 away from the inner fire cover 200, and is connected to the outer fire cover 100, so that the gas dividing seat 400 and the outer fire cover 100 are connected as a whole, which facilitates the overall movement of the gas dividing seat 400, the outer fire cover 100, the inner fire cover 200 and the connecting body 300.

[0067] Further optionally, the gas separation seat 400 is provided with a gas separation central channel 410, a gas separation radiation channel 420 and a gas separation annular channel 430, the gas separation annular channel 430 is arranged around the gas separation central channel 410, and the gas separation annular channel 430 is connected with the gas separation annular channel 430 through the gas separation radiation channel 420. The gas separation central channel 410 is connected with the fire cover central channel 310, so that the gas in the gas separation central channel 410 can flow to the fire cover central channel 310.

[0068] For example, the gas distribution radiation channel 420 cooperates with the fire cover radiation channel 150 to form a radiation flow channel with a larger flow area, and the gas distribution annular channel 430 cooperates with the fire cover annular channel 160 to form an annular channel with a larger flow area, so that each fire outlet has sufficient gas volume to ensure combustion quality.

[0069] In this embodiment, Figure 7 As shown, the burner also includes a burner head 600, an ignition needle 700 and a thermocouple 800. The burner head 600 is sealed and connected to the gas distributor seat 400, and the fuel channel in the burner head 600 is connected to the gas distributor center channel 410 of the gas distributor seat 400. The burner head 600, the gas distributor seat 400 and the fire cover are all connected to form an integrated burner. The ignition needle 700 and the thermocouple 800 are both arranged on the burner head 600, the ignition needle 700 is arranged opposite to one functional hole 130, and the thermocouple 800 is arranged opposite to another functional hole 130.

[0070] This embodiment also provides a gas stove, including the above-mentioned burner. The specific structure of the burner of the gas stove can refer to the above-mentioned embodiment. Since the gas stove provided by this embodiment adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0071] In summary, it can be seen that the fire cover, burner and gas stove provided in this embodiment, the outer fire cover 100, the inner fire cover 200 and the connecting body 300 can all be manufactured separately and then assembled after manufacturing. Since the structures of the outer fire cover 100, the inner fire cover 200 and the connecting body 300 are relatively simple and easy to process and manufacture, the fire cover has lower processing difficulty and assembly difficulty, thereby improving the production efficiency and qualified rate of the fire cover.

[0072] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fire cover, characterized in that: include: External fire cover (100); An inner fire cover (200), wherein the inner fire cover (200) is arranged on one side of the outer fire cover (100); A connecting body (300), one end of which is located on the other side of the outer fire cover (100), and the connecting body (300) passes through the outer fire cover (100) and is connected to the inner fire cover (200), so that the outer fire cover (100) is clamped between the inner fire cover (200) and one end of the connecting body (300).

2. The fire cover according to claim 1, characterized in that: The connecting body (300) is provided with a fire cover central channel (310), the inner wall of the fire cover central channel (310) is connected with a channel transverse rib (320), and the inner fire cover (200) is connected to the channel transverse rib (320).

3. The fire cover according to claim 2, characterized in that: The connecting body (300) is provided with a compensation opening (330), and the gas in the central channel (310) of the fire cover located on the side of the channel transverse rib (320) away from the inner fire cover (200) can flow out through the compensation opening (330).

4. The fire cover according to claim 3, characterized in that: The outer fire cover (100) is provided with a functional hole (130), and the compensation port (330) is arranged opposite to and communicated with the functional hole (130).

5. The fire cover according to any one of claims 1 to 4, characterized in that: One of the outer fire cover (100) and the connecting body (300) is provided with an anti-rotation structure, and the other is provided with an anti-rotation matching structure, and the anti-rotation structure cooperates with the anti-rotation matching structure to prevent the connecting body (300) from rotating relative to the outer fire cover (100).

6. The fire cover according to claim 5, characterized in that: The anti-rotation structure is a positioning slide groove (110), and the anti-rotation matching structure is a positioning protrusion (340). The positioning protrusion (340) is slidably arranged in the positioning slide groove (110) along the axial direction of the outer fire cover (100).

7. The fire cover according to any one of claims 1 to 4, characterized in that: One end of the connecting body (300) is located on the other side of the outer fire cover (100), and one end of the connecting body (300) is in sealing contact with the surface of the other side of the outer fire cover (100).

8. The fire cover according to any one of claims 1 to 4, characterized in that: The connecting body (300) is provided with an assembly hole (321), the inner fire cover (200) is provided with a threaded hole, and the connecting piece (500) passes through the assembly hole (321) and is screwed into the threaded hole.

9. A burner, characterized in that It comprises an air dividing seat (400) and a fire cover as described in any one of claims 1 to 7, wherein the air dividing seat (400) is arranged on a side of the outer fire cover (100) away from the inner fire cover (200) and is connected to the outer fire cover (100).

10. A gas stove, characterized in that: Comprising the burner as claimed in claim 9.

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