Fire cover and burner with same

Abstract

The utility model provides a fire cover and a burner with the fire cover, and belongs to the technical field of gas stoves, the fire cover comprises a fire cover body, a limiting structure and a locking structure, the fire cover body comprises a fire cover outer ring and a fire cover inner ring which are coaxially arranged, the fire cover outer ring is arranged on the periphery of the fire cover inner ring, and the fire cover inner ring can rotate relative to the fire cover outer ring; the limiting structure comprises a first limiting part connected to the fire cover outer ring and a second limiting part connected to the fire cover inner ring, and the fire cover outer ring and the fire cover inner ring are provided with a first mounting position and a second mounting position through cooperation of the first limiting part and the second limiting part; the locking structure is connected to the fire cover inner ring and the first limiting part so as to lock or unlock the fire cover outer ring and the fire cover inner ring. Abrasion possibly occurring in the installation process is avoided, the problem that parts are prone to falling off is solved, and the service life of products is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, and in particular to a burner cap and a burner having the same. Background Technology

[0002] Gas stove outer burner caps on the market are made of high-temperature resistant materials such as copper and steel. Stainless steel burner caps are inexpensive, but their stamping process results in limited design options that don't meet user aesthetic preferences. Copper burner caps can be forged, but the material cost is relatively high. Using a combination of steel and copper burner caps satisfies user aesthetic requirements while reducing material costs. Current technology typically connects two parts with an interference fit. However, due to the very low resilience of metal parts, the protrusions can wear down during the clamping process, potentially leading to loosening over time. Utility Model Content

[0003] The first technical problem to be solved by this utility model is to address the problems of the prior art by providing a flame cap that, through the cooperation of the limiting structure and the locking structure, makes it easy to assemble and disassemble the outer ring and the inner ring of the flame cap, and has a simple installation structure and is durable.

[0004] The second technical problem to be solved by this utility model is to provide a burner for use with the aforementioned flame cap.

[0005] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a flame cap, the flame cap comprising:

[0006] The flame cap body includes an outer ring and an inner ring of the flame cap arranged coaxially. The outer ring of the flame cap is located on the outer periphery of the inner ring of the flame cap, and the inner ring of the flame cap can rotate relative to the outer ring of the flame cap.

[0007] The limiting structure includes a first limiting part connected to the outer ring of the flame cap and a second limiting part connected to the inner ring of the flame cap. The first limiting part and the second limiting part cooperate to make the outer ring of the flame cap and the inner ring of the flame cap have a first installation position and a second installation position.

[0008] A locking structure is connected to the inner ring of the flame cap and the first limiting part to lock or unlock the outer ring of the flame cap and the inner ring of the flame cap.

[0009] According to one embodiment of the present invention, the first limiting part includes an annular groove formed along the inner side of the top of the outer ring of the flame cap, and the second limiting part includes a limiting protrusion connected to the inner ring of the flame cap. The opening of the annular groove faces the limiting protrusion, and the limiting protrusion can be inserted into the annular groove and rotated along the annular groove, so that the outer ring of the flame cap and the inner ring of the flame cap are configured in the second installation position.

[0010] According to one embodiment of the present invention, the annular groove has a first limiting groove for aligning with the limiting protrusion, and the limiting protrusion can be inserted into the first limiting groove to arrange the outer ring of the flame cap and the inner ring of the flame cap in the first installation position.

[0011] The first limiting groove is connected to the interior of the annular groove, so that the limiting protrusion enters the annular groove through the first limiting groove.

[0012] According to one embodiment of the present invention, the first limiting groove is an open groove, and the bottom of the first limiting groove is inclined upward from the outside to the inside, so that the limiting protrusion can slide into the annular groove through the first limiting groove.

[0013] According to one embodiment of the present invention, the locking structure includes a threaded hole formed in the inner ring of the flame cap and a screw connected to the threaded hole and the first limiting groove.

[0014] According to one embodiment of the present invention, the locking structure further includes a mounting groove provided at the top of the inner ring of the flame cap with the groove facing downward, and the mounting groove has the threaded hole on the side near the annular groove.

[0015] According to one embodiment of the present invention, the second limiting part further includes a limiting boss connected to the top outer periphery of the inner ring of the flame cap, and a second limiting groove with the opening facing the bottom of the inner side of the outer ring of the flame cap is provided, and the limiting boss is inserted into and abuts against the bottom of the second limiting groove.

[0016] According to one embodiment of the present invention, the outer ring of the flame cap includes an outer ring wall and a top wall connected to the top of the outer ring wall, the inner ring of the flame cap includes an inner ring wall connected to the inner side of the top wall, the outer ring wall, the top wall and the inner ring wall together form an exhaust cavity, the inner ring wall has a plurality of exhaust holes arranged in a spiral along its inner circumference, and each exhaust hole connects the exhaust cavity and the outside.

[0017] According to one embodiment of the present invention, the inner ring wall includes a first inclined section, a second inclined section and a vertical section connected sequentially from the outside to the inside, the included angle between the first inclined section and the vertical section is smaller than the included angle between the second inclined section and the vertical section, and the first inclined section is provided with a plurality of air outlets.

[0018] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a burner, the burner including the flame cap as described in any one of the above descriptions.

[0019] Compared with the prior art, the present invention has the following advantages or beneficial effects:

[0020] This invention, through the limiting structure and the locking structure, avoids the wear that may occur during the interference fit installation of two different parts in the prior art, solves the problem of parts easily falling off, makes the product more durable, and improves the product's service life. Attached Figure Description

[0021] The above and other features and advantages of this invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of a flame cap according to an exemplary embodiment.

[0023] Figure 2 This is a bottom view of the fire cover according to an exemplary embodiment.

[0024] Figure 3 This is a cross-sectional view of the fire cover according to an exemplary embodiment.

[0025] Figure 4 This is an exploded view of a flame cap according to an exemplary embodiment.

[0026] Figure 5 This is a schematic diagram illustrating the connection between the inner ring of the cover and the locking structure according to an exemplary embodiment.

[0027] Figure 6 This is a bottom view of the outer ring of the flame cap according to an exemplary embodiment.

[0028] Figure 7 This is a cross-sectional view of the outer ring of the flame cap according to an exemplary embodiment. Attached image description:

[0030] 1. Flame cap body; 11. Flame cap outer ring; 111. Outer ring wall; 112. Top wall; 12. Flame cap inner ring; 121. Inner ring wall; 1211. First inclined section; 1212. Second inclined section; 1213. Vertical section; 122. Vent hole; 10. Vent chamber;

[0031] 2. Limiting structure; 21. First limiting part; 211. Annular groove; 212. First limiting groove; 213. Second limiting groove; 22. Second limiting part; 221. Limiting protrusion; 222. Limiting boss;

[0032] 3. Locking structure; 31. Threaded hole; 32. Mounting groove. Detailed Implementation

[0033] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0034] The terms “a,” “one,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “include” and “have” are used to indicate an open-ended meaning of inclusion and that there may be other elements / components / etc. in addition to the listed elements / components / etc.

[0035] This utility model embodiment provides a flame cover, such as Figure 1-7As shown, the flame cover includes a flame cover body 1, a limiting structure 2, and a locking structure 3. The flame cover body 1 includes an outer ring 11 and an inner ring 12 coaxially arranged. The outer ring 11 is located on the outer periphery of the inner ring 12, and the inner ring 12 can rotate relative to the outer ring 11. The limiting structure 2 includes a first limiting part 21 connected to the outer ring 11 and a second limiting part 22 connected to the inner ring 12. The first limiting part 21 and the second limiting part 22 cooperate to give the outer ring 11 and the inner ring 12 a first installation position and a second installation position. The locking structure 3 is connected to the inner ring 12 and the first limiting part 21 to lock or unlock the outer ring 11 and the inner ring 12. In this application, the outer ring 11 of the flame cap is made of stainless steel, and the inner ring 12 of the flame cap is made of copper. Both the outer ring 11 and the inner ring 12 of the flame cap are metal parts with very low resilience. The outer ring 11 and the first limiting part 21 can be formed by stamping, and the shape is simple. The inner ring 12 and the second limiting part 22 can be formed by machining or forging. They are initially connected by the cooperation of the first limiting part 21 and the second limiting part 22. Then, the locking structure 3 is used to lock the outer ring 11 and the inner ring 12 of the flame cap. Specifically, the inner ring 12 of the burner cap is located below the outer ring 11 of the burner cap and moves upward. With the connection of the first limiting part 21 and the second limiting part 22, the outer ring 11 of the burner cap is disposed on the outer periphery of the inner ring 12 of the burner cap, and the inner ring 12 of the burner cap can rotate relative to the outer ring 11 of the burner cap. The outer ring 11 and the inner ring 12 of the burner cap are defined in a first installation position when aligned and just touching; the outer ring 11 and the inner ring 12 of the burner cap are defined in a second installation position when assembled. At this time, the inner ring 12 of the burner cap can rotate relative to the outer ring 11 of the burner cap, and the locking structure 3 secures the outer ring 11 of the burner cap. Ring 11 and inner ring 12 of the burner cap are locked together to avoid wear that may occur during the interference fit installation of two different parts in the prior art. This solves the problem of parts easily falling off due to wear, improves the service life of the product, and makes the product more durable. Finally, the locking structure 3 unlocks the outer ring 11 and inner ring 12 of the burner cap, making it convenient to install and remove the outer ring 11 and inner ring 12 of the burner cap. If either the outer ring 11 or the inner ring 12 of the burner cap malfunctions, it can be disassembled and replaced at any time, saving costs.

[0036] In a preferred embodiment of this utility model, such as Figure 2-7The first limiting part 21 shown includes an annular groove 211 formed along the inner side of the top of the outer ring 11 of the flame cap. The second limiting part 22 includes a limiting protrusion 221 connected to the inner ring 12 of the flame cap. The opening of the annular groove 211 faces the limiting protrusion 221. The limiting protrusion 221 can be inserted into the annular groove 211 and rotate along the annular groove 211, so that the outer ring 11 and the inner ring 12 of the flame cap are arranged in a second installation position. In this application, the limiting protrusion 221 and the annular groove 211 are clearance-fitted. The outer ring 11 and the inner ring 12 of the flame cap are coaxially arranged and can move relative to each other. As the limiting protrusion 221 approaches and inserts into the annular groove 211, the assembly of the outer ring 11 and the inner ring 12 of the flame cap is realized, solving the problem in the prior art that wear occurs during the pressing process of two metal parts made of different materials, and loosening occurs after long-term use. In addition, there is no less than one limiting protrusion 221, preferably two, three, four, five, six, eight, etc. Each limiting protrusion 221 is evenly distributed along the outer periphery of the inner ring 12 of the flame cap and is inserted into the annular groove 211, so that the inner ring 12 of the flame cap is subjected to uniform force and the problem of the inner ring 12 of the flame cap coming out of the annular groove 211 is avoided.

[0037] In a preferred embodiment of this utility model, such as Figure 2-4 The annular groove 211 shown in Figures 6 and 7 has a first limiting groove 212 for alignment with the limiting protrusion 221. The limiting protrusion 221 can be inserted into the first limiting groove 212, positioning the outer ring 11 and inner ring 12 of the flame cap in a first installation position. The first limiting groove 212 connects to the interior of the annular groove 211, allowing the limiting protrusion 221 to enter the annular groove 211 via the first limiting groove 212. In this embodiment, the first limiting groove 212 and the limiting protrusion 221 correspond, and preferably, the lower wall of the annular groove 211 has the first limiting groove 212. During installation, firstly, the inner ring 12 of the flame cap is placed below the outer ring 11 of the flame cap; then, a limiting protrusion 221 is aligned with and inserted into the first limiting groove 212, and then slid into the annular groove 211. The first limiting groove 212 facilitates the alignment and installation of the outer ring 11 and inner ring 12 of the flame cap, improving installation efficiency.

[0038] In a preferred embodiment of this utility model, such as Figure 2-4 The first limiting groove 212 shown in Figures 6 and 7 is an open groove. The bottom of the first limiting groove 212 is inclined upward from the outside to the inside, so that the limiting protrusion 221 can slide into the annular groove 211 through the first limiting groove 212. In this embodiment, the inclined setting of the first limiting groove 212 can guide the movement of the limiting protrusion 221. The inner ring 12 of the flame cap slides upward from below the outer ring 11 of the flame cap along the bottom of the first limiting groove 212, so that the limiting protrusion 221 enters the annular groove 211, realizing the initial installation of the inner ring 12 and the outer ring 11 of the flame cap. Then, the locking structure is used to further fix the inner ring 12 and the outer ring 11 of the flame cap.

[0039] In a preferred embodiment of this utility model, such as Figure 1-7 The locking structure 3 shown includes a threaded hole 31 and a screw in the inner ring 12 of the flame cap. The screw is connected to the threaded hole 31 and the first limiting groove 212. After the limiting protrusion 221 is inserted into the annular groove 211, the inner ring 12 of the flame cap is rotated so that the threaded hole 31 is aligned with the first limiting groove 212, and the screw is inserted into the first limiting groove 212 through the threaded hole 31, thereby fixing the inner ring 12 and the outer ring 11 of the flame cap and preventing the inner ring 12 and the outer ring 11 of the flame cap from separating when the user rotates the inner ring 12.

[0040] In a preferred embodiment of this utility model, such as Figure 1-7 The locking structure 3 shown also includes a mounting groove 32 located at the top of the inner ring 12 of the flame cap, with the groove opening facing downwards. A threaded hole 31 is provided on the side of the mounting groove 32 near the annular groove 211. The outer ring 11 of the flame cap has a uniform wall thickness but is made of relatively thin material; therefore, it lacks threaded posts or threaded holes, which is disadvantageous for assembling the outer ring 11 and the inner ring 12. Although threaded posts can be welded to the outer ring 11, the manufacturing cost is significantly increased. In this application, the threaded hole 31 on the inner ring 12 of the flame cap corresponds to the first limiting groove 212. The threaded hole 31 and the annular groove 211 may partially overlap or not overlap. The inner diameter of the mounting groove 32 is much larger than the inner diameter of the threaded hole 31. Screws are inserted into the threaded hole 31 through the mounting groove 32. The axis of the threaded hole 31 is inclined upwards from the inside out, facilitating screw installation. Of course, the axis of the threaded hole 31 can also be horizontal, as long as screws can be used to fix the outer ring 11 and the inner ring 12 of the flame cap.

[0041] In a preferred embodiment of this utility model, the outer ring 11 of the flame cap is fixed to prevent the user from rotating the inner ring 12 of the flame cap. Figure 2-7 The second limiting part 22 shown also includes a limiting protrusion 222 connected to the top outer periphery of the inner ring 12 of the flame cap. A second limiting groove 213 with the opening facing the bottom of the inner side of the outer ring 11 of the flame cap is formed. The limiting protrusion 222 is inserted into and abuts against the bottom of the second limiting groove 213. In this application, the inner ring 12 of the flame cap moves from bottom to top, causing the limiting protrusion 221 to insert into the annular groove 211 to achieve the connection of the outer ring 11 of the flame cap. The second limiting groove 213 is formed on the bottom of the inner side of the outer ring 11 of the flame cap. The limiting protrusion 222 is inserted into and abuts against the bottom of the second limiting groove 213 to limit the installation position of the inner ring 12 of the flame cap. At the same time, the limiting protrusion 222 can also support the outer ring 11 of the flame cap, improving the stability of the outer ring 11 and the inner ring 12 of the flame cap.

[0042] In a preferred embodiment of this utility model, such as Figure 1-7The outer ring 11 of the burner cap shown includes an outer ring wall 111 and a top wall 112 connected to the top of the outer ring wall 111. The inner ring 12 of the burner cap includes an inner ring wall 121 connected to the inner side of the top wall 112. The outer ring wall 111, the top wall 112, and the inner ring wall 121 together form an exhaust chamber 10. The inner ring wall 121 has multiple exhaust holes 122 arranged spirally along its inner circumference. Each exhaust hole 122 connects the exhaust chamber 10 to the outside. In this application, the limiting boss 222 may also have corresponding air passage holes, so that each exhaust hole 122 connects the exhaust chamber 10 to the outside. The multiple exhaust holes 122 are arranged spirally along the top of the inner end of the inner ring wall 121, so that the ejected gas forms a vortex airflow. This makes the mixture with air more complete, the combustion more complete, reduces gas waste, improves thermal efficiency, and reduces the emission of harmful gases such as carbon monoxide.

[0043] In a preferred embodiment of this utility model, such as Figure 1-7 The inner ring wall 121 shown includes a first inclined section 1211, a second inclined section 1212, and a vertical section 1213 connected sequentially from the outside to the inside. The included angle between the first inclined section 1211 and the vertical section 1213 is smaller than the included angle between the second inclined section 1212 and the vertical section 1213. The first inclined section 1211 has multiple air vents 122. Figure 2-5 As shown, multiple air outlets 122 are evenly distributed along the first inclined section 1211. The first inclined section 1211 is designed at an angle to guide the airflow into a swirling flow, increasing mixing efficiency, reducing incomplete combustion, and improving combustion efficiency and flame stability. The different angles of the first inclined section 1211 and the second inclined section 1212 can control the airflow direction, reduce interference from external airflows such as natural wind or kitchen exhaust to the flame, optimize the flame shape, reduce ineffective heat diffusion to the surroundings, and improve the thermal efficiency of the burner.

[0044] This utility model provides a burner, which includes a burner with the above-mentioned flame cap and also has the above-mentioned functions and effects.

[0045] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0046] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0047] In the description of this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flame cover, characterized in that, include: The flame cap body (1) includes an outer ring (11) and an inner ring (12) coaxially arranged. The outer ring (11) is located on the outer periphery of the inner ring (12), and the inner ring (12) can rotate relative to the outer ring (11). The limiting structure (2) includes a first limiting part (21) connected to the outer ring (11) of the flame cap and a second limiting part (22) connected to the inner ring (12) of the flame cap. The first limiting part (21) and the second limiting part (22) cooperate to make the outer ring (11) of the flame cap and the inner ring (12) of the flame cap have a first installation position and a second installation position. A locking structure (3) is connected to the inner ring (12) of the flame cap and the first limiting part (21) to lock or unlock the outer ring (11) of the flame cap and the inner ring (12) of the flame cap.

2. A flame cover according to claim 1, characterized in that, The first limiting part (21) includes an annular groove (211) opened along the inner side of the top of the outer ring (11) of the flame cap, and the second limiting part (22) includes a limiting protrusion (221) connected to the inner ring (12) of the flame cap. The opening of the annular groove (211) faces the limiting protrusion (221). The limiting protrusion (221) can be inserted into the annular groove (211) and rotated along the annular groove (211), so that the outer ring (11) of the flame cap and the inner ring (12) of the flame cap are configured in the second installation position.

3. A flame cover according to claim 2, characterized in that, The annular groove (211) has a first limiting groove (212) for aligning with the limiting protrusion (221). The limiting protrusion (221) can be inserted into the first limiting groove (212) and the outer ring (11) and inner ring (12) of the flame cap can be positioned in the first installation position. The first limiting groove (212) is connected to the interior of the annular groove (211), so that the limiting protrusion (221) enters the annular groove (211) through the first limiting groove (212).

4. A flame cover according to claim 3, characterized in that, The first limiting groove (212) is an open groove. The bottom of the first limiting groove (212) is inclined from the outside to the inside and upward, so that the limiting protrusion (221) can slide into the annular groove (211) through the first limiting groove (212).

5. A flame cover according to claim 3, characterized in that, The locking structure (3) includes a threaded hole (31) in the inner ring (12) of the fire cap and a screw connected to the threaded hole (31) and the first limiting groove (212).

6. A flame cover according to claim 5, characterized in that, The locking structure (3) also includes an installation groove (32) located on the top of the inner ring (12) of the fire cap with the groove facing downwards. The installation groove (32) has the threaded hole (31) on the side near the annular groove (211).

7. A flame cover according to claim 1, characterized in that, The second limiting part (22) also includes a limiting boss (222) connected to the top outer periphery of the inner ring (12) of the flame cap. The bottom of the inner side of the outer ring (11) of the flame cap is provided with a second limiting groove (213) facing the groove. The limiting boss (222) is inserted into and abuts against the bottom of the second limiting groove (213).

8. A flame cover according to claim 1, characterized in that, The outer ring (11) of the flame cap includes an outer ring wall (111) and a top wall (112) connected to the top of the outer ring wall (111). The inner ring (12) of the flame cap includes an inner ring wall (121), which is connected to the inner side of the top wall (112). The outer ring wall (111), the top wall (112), and the inner ring wall (121) together form an exhaust chamber (10). The inner ring wall (121) has multiple exhaust holes (122) arranged in a spiral along its inner circumference. Each exhaust hole (122) is connected to the exhaust chamber (10) and the outside.

9. A flame cover according to claim 8, characterized in that, The inner ring wall (121) includes a first inclined section (1211), a second inclined section (1212), and a vertical section (1213) connected sequentially from the outside to the inside. The angle between the first inclined section (1211) and the vertical section (1213) is smaller than the angle between the second inclined section (1212) and the vertical section (1213). The first inclined section (1211) is provided with a plurality of air outlets (122).

10. A burner, characterized in that, The burner includes a flame cap as described in any one of claims 1-9.

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