Inner ring fire cover and stove burner including the same

Abstract

The present invention discloses an inner ring fire cover and a stove burner including the same, which includes two ignition holes, a flame transfer hole and an ignition needle protection part. The flame transfer hole is arranged on the surface of the ignition needle protection part. The two ignition holes are arranged at an angle, and the axes of the two ignition holes intersect below the flame transfer hole. After the gas flows out of the two ignition holes, a counter-attack is formed, thereby forming a high-concentration gas gathering area above the ignition needle. During ignition, a deflagration will be formed here, and the burning flame will ignite the gas in the flame transfer hole, thereby forming a flame at the end of the flame transfer hole, which is conducive to the flame at the end of the flame transfer hole igniting the gas in the outer ring fire cover, thereby achieving the purpose of easier fire transfer between the inner and outer rings. By utilizing the structure of the existing ignition needle protection part, a new flame transfer hole is opened at the position where the ignition needle protection part protrudes outward, without the need to separately add a new flame transfer structure or component, which will not increase the manufacturing difficulty and cost of the burner, nor will it affect the integrity of the burner appearance and combustion performance.

Description

Technical Field

[0001] The invention relates to an inner ring fire cover and a stove burner comprising the same. Background Art

[0002] Currently, burners with inner and outer ring fire covers are very common on the market. Gas first flows into the inner cavity of the inner ring fire cover and then discharges from the fire hole connected to the inner cavity. The gas discharged from the fire hole is ignited by the ignition needle, and the flame ejected from the fire hole then ignites the outer ring fire cover, allowing the entire burner to burn, effectively expanding the burner's combustion area. However, the flame transfer between the inner and outer ring fire covers is greatly affected by the distance between the inner and outer rings. The greater the distance between the inner and outer rings, the more difficult it is to transfer flames.

[0003] Therefore, to solve the flame transfer problem between the inner and outer ring flame covers of a burner, existing technologies have employed a separate flame transfer structure on the burner to ensure that the flame from the inner ring flame cover can be transferred to the outer ring. However, this approach increases the burner manufacturing process and cost, and the flame transfer structure also affects the burner's overall appearance and combustion performance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art of separately adding a fire transfer structure between the inner ring fire cover and the outer ring fire cover of the burner, which increases the manufacturing process and cost of the burner and affects the integrity of the burner's appearance and combustion performance. An inner ring fire cover and a stove burner including the same are provided.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] An inner ring fire cover comprises an ignition hole, a fire transfer hole and an ignition needle protection portion, wherein the fire transfer hole is arranged on the side surface of the ignition needle protection portion, the number of the ignition holes is at least two, the two ignition holes are arranged at an angle, and the axes of the two ignition holes intersect below the fire transfer hole.

[0007] In the present solution, the above-mentioned structural form is adopted, so that after the gas flows out from the two ignition holes, it forms a counter-flow below the ignition needle protection part, the flow rate slows down and quickly gathers, thereby forming a high-concentration gas gathering area above the ignition needle. When the ignition needle ignites, a deflagration will be formed here, and the burning flame will ignite the gas in the fire transfer hole, thereby forming a flame at the end of the fire transfer hole. Since the ignition needle protection part extends from the inner ring fire cover to the outer ring fire cover, it is beneficial for the flame at the end of the fire transfer hole to ignite the gas in the outer ring fire cover, thereby achieving the purpose of easier fire transfer between the inner and outer rings. In addition, the present solution utilizes the structure of the existing ignition needle protection part, opens a new fire transfer hole at the position where the ignition needle protection part protrudes outward, and forms fire transfer at the ignition hole by way of deflagration. The arrangement is ingenious, and there is no need to add a new fire transfer structure or component separately. It will not increase the manufacturing difficulty and cost of the burner, nor will it affect the integrity of the burner appearance and combustion performance.

[0008] Preferably, one of the ignition holes is located on the side surface of the inner ring fire cover, and the other ignition hole is located on the lower surface of the ignition needle protection portion.

[0009] In this solution, the above-mentioned structural form is adopted so that the openings of the two ignition holes are both facing the ignition needle, which facilitates the formation of a gas accumulation near the ignition needle, thereby facilitating ignition and flame transfer; in addition, the two ignition holes are opened on the original structure of the burner, and no new structure is added, thereby not increasing the production cost of the burner.

[0010] Preferably, the axis of the ignition hole located on the side surface of the inner ring fire cover is arranged horizontally.

[0011] Preferably, the lower surface of the ignition needle protection portion has a shielding eaves, and the axis of the ignition hole located on the side surface of the inner ring fire cover passes through the shielding eaves.

[0012] Preferably, the ignition hole located on the side surface of the inner ring fire cover is a circular hole and is arranged through the inner ring fire cover.

[0013] Preferably, the axes of the two ignition holes form an acute angle or a right angle.

[0014] In this solution, the above-mentioned structural form is adopted, so that the opening of the ignition hole located on the side surface of the inner ring fire cover is directly opposite the shielding eaves of the ignition needle protection part, so that the gas flowing out of the hole will be blocked by the shielding eaves, which is conducive to the formation of gas accumulation below the shielding eaves (i.e., the ignition end of the ignition needle), thereby facilitating ignition and fire transmission. In addition, the ignition hole passes through the inner ring fire cover. When opening the hole, it only needs to be opened from the other end of the inner ring fire cover and pass through to the end near the ignition needle protection part, without having to disassemble the ignition needle, the ignition needle protection part and other components, thereby affecting these components. The manufacturing is simple and convenient, and effectively saves costs.

[0015] Preferably, the inner ring fire cover includes a groove, which is provided on the side surface of the ignition needle protection portion, and the groove extends inwardly and is connected to the fire transfer hole.

[0016] Preferably, the groove is arranged transversely, and the axis of the groove is perpendicular to the axis of the fire transmission hole.

[0017] In this solution, the above-mentioned structural form is adopted so that the gas in the fire transfer hole will flow into the cut groove, thereby forming a flame stabilizing line on the side surface of the ignition needle protection part, which is beneficial to enhancing the fire transfer ability of the fire transfer hole.

[0018] Preferably, the inner ring fire cover also includes a plurality of connecting holes, which are arranged in the inner cavity of the inner ring fire cover. The connecting holes extend upward along the top of the inner cavity of the inner ring fire cover and are connected to the ignition holes located on the side surface of the inner ring fire cover.

[0019] Preferably, there are three connecting holes, and they are distributed along the axis of the ignition hole located on the side surface of the inner ring fire cover. The connecting hole close to the ignition needle protection part has a larger aperture than the other two connecting holes, and is directly opposite to the connection between the fire transfer hole and the ignition hole located on the side surface of the inner ring fire cover.

[0020] In this solution, the above-mentioned structural form facilitates the entry of gas from the inner cavity of the inner ring fire cover into the ignition and flame transfer holes. Furthermore, the connecting hole at the junction of the ignition and flame transfer holes on the side surface of the inner ring fire cover has a larger diameter, enhancing gas flow, further facilitating gas entry into the ignition and flame transfer holes and thereby ensuring efficient ignition and flame transfer. Furthermore, the connection hole is simple and effective, and can be easily opened.

[0021] A stove burner comprises: the inner ring fire cover and an ignition needle, wherein the ignition needle is arranged directly below the ignition needle protection portion.

[0022] The positive progress effect of the present invention is:

[0023] Through the setting of the inner ring fire cover described in this article, after the gas flows out from the two ignition holes, it forms a counter-flow below the ignition needle protection part, the flow rate slows down and quickly gathers, thereby forming a high-concentration gas gathering area above the ignition needle. When the ignition needle ignites, a deflagration will form here, and the burning flame will ignite the gas in the fire transfer hole, thereby forming a flame at the end of the fire transfer hole. Since the ignition needle protection part extends from the inner ring fire cover to the outer ring fire cover, it is beneficial for the flame at the end of the fire transfer hole to ignite the gas in the outer ring fire cover, thereby achieving the purpose of easier fire transfer between the inner and outer rings. In addition, the present solution utilizes the structure of the existing ignition needle protection part, opens a new fire transfer hole at the position where the ignition needle protection part protrudes outward, and forms fire transfer at the ignition hole by way of deflagration. The setting is clever, and there is no need to add a new fire transfer structure or component separately. It will not increase the manufacturing difficulty and cost of the burner, nor will it affect the integrity of the burner appearance and combustion performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the inner ring fire cover in an embodiment of the present invention.

[0025] Figure 2 It is a three-dimensional diagram of the inner ring fire cover in an embodiment of the present invention.

[0026] Figure 3 It is a cross-sectional view of the local structure of the stove burner in an embodiment of the present invention.

[0027] Figure 4 It is a three-dimensional diagram of the local structure of the stove burner in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] Inner ring fire cover 1

[0030] Ignition hole 11

[0031] Fire hole 12

[0032] Ignition needle protection part 13

[0033] Eaves 131

[0034] Grooving 14

[0035] Connection hole 15

[0036] Inner cavity 16

[0037] Ignition pin 2

[0038] Outer ring fire cover 3 DETAILED DESCRIPTION

[0039] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0040] like Figures 1 to 4 As shown, this embodiment discloses an inner ring fire cover 1, which includes an ignition hole 11, a fire transfer hole 12 and an ignition needle protection portion 13. The fire transfer hole 12 is arranged on the side surface of the ignition needle protection portion 13. The number of ignition holes 11 is at least two, and the two ignition holes 11 are arranged at an angle. The axes of the two ignition holes 11 intersect below the fire transfer hole 12.

[0041] from Figure 1 As can be seen from the figure, the openings of the two flame transmission holes 12 are both facing the bottom of the ignition needle protection part 13, so that after the gas flows out of the two ignition holes 11, it forms an impact below the ignition needle protection part 13, the flow rate slows down and quickly gathers, thereby forming a high-concentration gas gathering area above the ignition needle 2. When the ignition needle 2 ignites, a deflagration will be formed here ( Figure 3 and Figure 4 A in the figure indicates the area below the ignition needle protection part 13 that explodes during ignition). The burning flame ignites the gas in the flame hole 12, thereby forming a flame at the end of the flame hole 12. Since the ignition needle protection part 13 extends from the inner ring fire cover 1 to the outer ring fire cover 3, Figure 1 As can be seen, the flame transfer hole 12 is arranged along the extended end of the ignition pin guard 13, which facilitates the flame at the end of the flame transfer hole 12 to ignite the gas in the outer ring fire cover 3, thereby facilitating the flame transfer between the inner and outer rings. In this context, deflagration refers to the phenomenon of rapid combustion caused by the sudden ignition of gases after a period of accumulation. This concept is well known in the prior art and will not be further discussed here.

[0042] Furthermore, this embodiment utilizes the existing structure of the ignition needle guard 13, creating a new flame transfer hole 12 at the outwardly protruding portion of the ignition needle guard 13. This clever arrangement allows for flame transfer at the ignition hole 11 through deflagration. This eliminates the need for adding new flame transfer structures or components, increases the manufacturing difficulty and cost of the burner, and does not affect the burner's overall appearance or combustion performance. Furthermore, by performing flame transfer at this location through deflagration, igniting the flame transfer hole 12, there is no need to continuously provide multiple flame transfer holes on the lower surface of the ignition needle guard 13. This is because the ignition needle guard 13 needs to shield the ignition needle from spillage from above. Therefore, the ignition needle guard 13 must ensure sufficient coverage of the ignition needle in its vertical projection. Therefore, air circulation is difficult below the ignition needle guard 13, and oxygen is relatively low. If multiple flame transfer holes were provided in this area, these holes would experience incomplete combustion due to a lack of oxygen during the continuous combustion process, leading to gas leakage. In this solution, the fire transmission hole 12 is ignited in a deflagration manner at this location, and there are no multiple fire holes that burn continuously, so incomplete combustion will not occur.

[0043] Specifically, one of the ignition holes 11 is located on the side surface of the inner ring fire cover 1 , and the other ignition hole 11 is located on the lower surface of the ignition needle protection portion 13 .

[0044] like Figure 1 and Figure 2 As shown, by respectively arranging the two ignition holes 11 on the side surface of the inner ring fire cover 1 and the lower surface of the ignition needle protection portion 13, the openings of the two ignition holes 11 are both facing the ignition needle 2, which facilitates the formation of a gas gathering near the ignition needle 2, thereby facilitating ignition and flame transfer; in addition, the two ignition holes 11 are opened on the original structure of the burner without adding a new structure, thereby not increasing the manufacturing cost of the burner.

[0045] Specifically, if Figure 1 As shown, the axis of the ignition hole 11 located on the side surface of the inner ring fire cover 1 is arranged horizontally.

[0046] Specifically, if Figure 1 As shown, the lower surface of the ignition needle protection portion 13 has a shielding eave 131 , and the axis of the ignition hole 11 located on the side surface of the inner ring fire cover 1 passes through the shielding eave 131 .

[0047] Specifically, the ignition hole 11 located on the side surface of the inner ring fire cover 1 is a circular hole and is set through the inner ring fire cover 1.

[0048] Specifically, the axes of the two ignition holes 11 are at right angles.

[0049] like Figure 1 As shown, the opening of the ignition hole 11 located on the side surface of the inner ring fire cover 1 is opposite to the shielding eaves 131 of the ignition needle protection part 13, so that the gas flowing out of the hole will be blocked by the shielding eaves 131, which is conducive to the formation of gas accumulation below the shielding eaves 131 (i.e., the ignition end of the ignition needle 2), which is conducive to ignition and fire transmission. In addition, the ignition hole 11 passes through the inner ring fire cover 1. When opening the hole, it only needs to be opened from the other end of the inner ring fire cover 1 and pass through to the end near the ignition needle protection part 13, without the need to disassemble the ignition needle 2, the ignition needle protection part 13 and other components, thereby affecting these components. Its manufacturing is simple and convenient, and effectively saves costs.

[0050] In other embodiments, the opening directions of the two ignition holes 11 can be adjusted based on actual application requirements and the specific structure of the burner. For example, the axes of the two ignition holes 11 can be arranged at an obtuse or acute angle, thereby changing the location where the gas flowing out of the two ignition holes 11 is concentrated, thereby facilitating ignition by the ignition needle 2. Therefore, the opening direction of the ignition holes 11 is not limited to the scope described in this embodiment.

[0051] Specifically, the inner ring fire cover 1 includes a groove 14 , which is provided on the side surface of the ignition needle protection portion 13 . The groove 14 extends inwardly and is communicated with the fire transfer hole 12 .

[0052] Specifically, the groove 14 is arranged transversely, and the axis of the groove 14 is perpendicular to the axis of the fire transmission hole 12 .

[0053] like Figure 1 and Figure 2 As shown, a transverse groove 14 is provided on the surface of the ignition needle protection portion 13, and the groove 14 is internally connected to the position near the opening of the fire transfer hole 12, so that the gas in the fire transfer hole 12 will flow into the groove 14, thereby forming a stable flame on the side surface of the ignition needle protection portion 13, ensuring that the flame at the opening of the fire transfer hole 12 burns more stably, which is beneficial to enhancing the fire transfer ability of the fire transfer hole 12.

[0054] Specifically, the inner ring fire cover 1 also includes a plurality of connecting holes 15, which are arranged in the inner cavity 16 of the inner ring fire cover 1. The connecting holes 15 extend upward along the top of the inner cavity 16 of the inner ring fire cover 1 and are connected to the ignition holes 11 located on the side surface of the inner ring fire cover 1.

[0055] Specifically, there are three connecting holes 15, which are distributed along the axis of the ignition hole 11 located on the side surface of the inner ring fire cover 1. The connecting hole 15 close to the ignition needle protection part 13 has a larger aperture than the other two connecting holes 15, and is opposite to the connection between the fire transfer hole 12 and the ignition hole 11 located on the side surface of the inner ring fire cover 1.

[0056] like Figure 1 As shown, the provision of the connection hole 15 facilitates the entry of the gas in the inner cavity 16 of the inner ring fire cover 1 into the ignition hole 11 and the flame transfer hole 12. Furthermore, at the junction of the ignition hole 11 and the flame transfer hole 12 on the side surface of the inner ring fire cover 1, the connection hole 15 has a larger diameter, which enhances the gas flowability and further promotes the entry of the gas into the ignition hole 11 and the flame transfer hole 12, thereby ensuring the efficiency of ignition and flame transfer. Furthermore, the provision of the connection hole 15 is simple and effective, and the hole is convenient to open.

[0057] like Figure 3 and Figure 4 This embodiment further discloses a stove burner, which includes: the inner ring fire cover 1 and an ignition needle 2 . The ignition needle 2 is arranged directly below the ignition needle protection portion 13 .

[0058] When the stove burner is turned on, the gas flows rapidly from the inner cavity 16 of the inner ring fire cover 1 into the ignition hole 11, the flame transfer hole 12 and the groove 14. The gas flowing out of the two ignition holes 11 will gather in the area A shown in the figure, and the gas concentration will increase. When the ignition needle 2 ignites, the area A will form a deflagration. Since the interiors of the two ignition holes 11 are connected to the flame transfer hole 12, the deflagration flame will quickly transfer to the flame transfer hole 12 and the groove 14, igniting the gas in the flame transfer hole 12 and the groove 14. Figure 4 As can be seen in the figure, the ignition needle protection portion 13 extends toward the outer ring fire cover 3, and the flame transfer hole 12 is arranged along the extension direction of the ignition needle protection portion 13, so that the opening of the flame transfer hole 12 also faces the outer ring fire cover 3, so that its flame burns toward the outer ring fire cover 3, igniting the gas flowing out of the fire hole of the outer ring fire cover 3, completing the flame transfer. The present invention utilizes the original structure of the inner ring fire cover 1, and the arrangement is ingenious. It will not affect the original combustion of the burner. The flame transfer effect is obvious, the structural arrangement is convenient and effective, and no additional flame transfer structure is required, which is convenient for production and saves costs.

[0059] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. An inner ring fire cover, comprising an ignition hole, a fire transfer hole and an ignition needle protection portion, characterized in that: The fire transfer hole is provided on the side surface of the ignition needle protection portion, the ignition needle protection portion extends toward the outer ring fire cover, the fire transfer hole is provided along the extension direction of the ignition needle protection portion, and is provided at a position where the ignition needle protection portion protrudes outward, the number of the ignition holes is at least two, the two ignition holes are provided at an angle, and the axes of the two ignition holes intersect below the fire transfer hole; The inner ring fire cover includes a groove, which is arranged on the side surface of the ignition needle protection part. The groove extends inward and is connected to the fire transfer hole. The groove is arranged horizontally, and the axis of the groove is perpendicular to the axis of the fire transfer hole.

2. The inner ring fire cover according to claim 1, characterized in that: One of the ignition holes is located on the side surface of the inner ring fire cover, and the other ignition hole is located on the lower surface of the ignition needle protection portion.

3. The inner ring fire cover according to claim 2, characterized in that: The axis of the ignition hole located on the side surface of the inner ring fire cover is arranged horizontally.

4. The inner ring fire cover according to claim 2, characterized in that: The lower surface of the ignition needle protection portion has a shielding eaves, and the axis of the ignition hole located on the side surface of the inner ring fire cover passes through the shielding eaves.

5. The inner ring fire cover according to claim 2, characterized in that: The ignition hole located on the side surface of the inner ring fire cover is a circular hole and is set through the inner ring fire cover.

6. The inner ring fire cover according to claim 1, characterized in that: The axes of the two ignition holes form an acute angle or a right angle.

7. The inner ring fire cover according to claim 1, characterized in that: The inner ring fire cover also includes a plurality of connecting holes, which are arranged in the inner cavity of the inner ring fire cover. The connecting holes extend upward along the top of the inner cavity of the inner ring fire cover and are connected to the ignition holes located on the side surface of the inner ring fire cover.

8. The inner ring fire cover according to claim 7, characterized in that: There are three connecting holes, which are distributed along the axis of the ignition hole located on the side surface of the inner ring fire cover. The connecting hole close to the ignition needle protection part has a larger aperture than the other two connecting holes, and is directly opposite to the connection between the fire transfer hole and the ignition hole located on the side surface of the inner ring fire cover.

9. A stove burner, characterized in that: The stove burner comprises: The inner ring fire cover according to any one of claims 1 to 8; An ignition needle is arranged directly below the ignition needle protection portion.

Images