Hole jumping center fire cover
By using a split design and a center flame cap with staggered and tilted flame holes, the problem of uneven flame distribution and low combustion efficiency of traditional flame caps is solved. This achieves multi-layer flame synergistic combustion, improves combustion efficiency and safety, and facilitates maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-04-07
AI Technical Summary
The traditional design of the burner holes in the center cap results in uneven flame distribution, affecting heating uniformity and efficiency. Furthermore, the poor mixing of the combustion gases leads to low combustion efficiency and increased energy consumption, posing safety hazards.
The split-type center burner cap, consisting of an upper cover and a lower cover, forms independent inner and outer gas chambers. The burner holes and jump holes are staggered and designed with an inclined angle to optimize the mixing of fuel gas and air. Through multi-layer flame rings for coordinated combustion, the jump holes are used to supplement air to improve combustion efficiency.
It achieves uniform and stable flame distribution, improves combustion efficiency, reduces energy consumption, reduces gas waste, enhances safety, facilitates maintenance and cleaning, and extends service life.
Smart Images

Figure CN224094471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a flame cap structure, specifically a pop-hole center flame cap. Background Technology
[0002] Gas stoves heat the bottom of the pot using burners. Commercially available burners typically include an outer burner cap and a center burner cap. Traditional center burner caps often have a central flame hole at the top that connects to the outside air. This central flame hole is vertically upward and often has a relatively uniform distribution. If high heat is needed for rapid heating, the flame is too concentrated in the center, resulting in concentrated heat; or if low heat is needed for slow simmering, the flame distribution is uneven, and the outer areas are not effectively heated. This directly affects the uniformity and efficiency of heating during cooking, and makes it difficult to effectively control the distribution and intensity of the flame.
[0003] To address the aforementioned drawbacks, some central burner caps have side burner holes simultaneously installed on their outer plates. While this solves the flame distribution problem to some extent, the side burner holes are interconnected with the central burner holes, reducing air mixing efficiency. This could lead to incompletely mixed gas being directly injected and burned through the burner holes, reducing combustion efficiency and wasting gas. Secondly, the design of the burner hole size and angle also has certain flaws. For example, if the diameter of the burner hole is too large or too small, it may affect the thorough mixing of gas and air, thereby reducing combustion efficiency. This not only increases energy consumption but may also lead to incomplete combustion, producing more harmful gases and affecting safety and environmental protection. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a simple structure, low manufacturing cost, split burner design, multi-layer flame synergistic combustion, jump hole to supplement air to the upper flame, optimize the gas-air mixing ratio, improve combustion rate, facilitate user maintenance and cleaning, and extend service life of the jump hole center burner.
[0005] The purpose of this utility model is achieved in the following way: a center flame cap with a jump hole, comprising an upper cover and a lower cover. The upper cover is installed in the middle of the lower cover and is connected to the lower cover. The lower cover includes an upper end plate and outer side plates and inner side plates extending downwards on both sides respectively. The outer side plates and inner side plates enclose an annular groove-shaped outer air cavity. A plurality of first flame holes and second flame holes are evenly distributed around the circumference of the outer side plates. The first flame holes are staggered and distributed above the second flame holes. A plurality of groups of first flame holes are evenly distributed around the circumference. A void is left between each group of first flame holes to form a clearance zone. A plurality of jump holes are provided through the outer side plates at the bottom of the clearance zone. The jump holes are staggered and distributed with the second flame holes. The inner side plate is connected to form an annular inner air cavity. The upper cover is connected to the inner air cavity.
[0006] The cross-sectional diameter of the first fire hole is greater than that of the jump hole and the second fire hole.
[0007] The first fire hole, the second fire hole, and the jump hole are inclined at an angle of 0-45° to the central axis of the lower cover.
[0008] The outer side plate is inclined inward and recessed below the upper end plate.
[0009] The inner side plate has an internal threaded hole at the top, and correspondingly, the bottom of the upper cover has an external threaded post. The external threaded post is screwed into the internal threaded hole to connect the upper cover and the lower cover into one unit.
[0010] The upper cover has several ignition holes evenly distributed around its outer circumference, and these ignition holes are interconnected with the inner air cavity.
[0011] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness. 2. The split design of the central burner cap forms a multi-layered flame ring for coordinated combustion. The independent gas chamber structure ensures that the flame rings do not interfere with each other, and the multi-layered flame system improves combustion efficiency. 3. The staggered distribution of the jump holes between the first and second burner holes not only supplements air to the upper flame but also ensures thorough mixing of the fuel gas, optimizes the fuel gas-air mixing ratio, ensures uniform flame distribution, and improves combustion efficiency. 4. The inclined design of the burner holes and jump holes further enhances the mixing effect and flame stability. 5. The threaded connection between the upper and lower cover allows for disassembly or installation as needed, facilitating cleaning and maintenance by the user. Attached Figure Description
[0012] Figure 1 This is a rendering of the final assembly of this utility model.
[0013] Figure 2 This is a cross-sectional view of the center flame cap of this utility model.
[0014] Figure 3-4 This is a structural assembly drawing of the center flame cap of this utility model. Detailed Implementation
[0015] The present invention will now be further described in detail with reference to the accompanying drawings. A center flame cap with a jump hole 53 includes an upper cover 1 and a lower cover 2. The upper cover 1 is installed in the middle of the lower cover 2 and is connected to the lower cover 2. The lower cover 2 includes an upper end plate 21 and outer side plates 22 and inner side plates 23 extending downward from both sides. The outer side plates 22 and inner side plates 23 enclose an annular groove-shaped outer air cavity 3. A plurality of first flame holes 51 and second flame holes 52 are evenly distributed around the circumference of the outer side plates 22. The first flame holes 51 are staggered and distributed above the second flame holes 52. A plurality of groups of first flame holes 51 are evenly distributed around the circumference. A void is left between each group of first flame holes 51 to form a void area. A plurality of jump holes 53 are provided at the bottom of the void area through the outer side plates 22. The jump holes 53 are staggered with the second flame holes 52. The inner side plates 23 are connected to form an annular inner air cavity 4. The upper cover 1 is connected to the inner air cavity 4.
[0016] Unlike traditional one-piece center burner designs, the center burner in this design consists of an upper cover and a lower cover. The upper plate of the lower cover extends to both sides to form an outer and an inner plate, which enclose an outer gas chamber. The inner plate, in turn, forms an inner gas chamber with the upper cover. These independent inner and outer gas chambers supply gas to the upper and lower covers independently, preventing gas mixing and interference. This further improves the gas-air mixing ratio, achieving efficient gas distribution and enhancing overall combustion performance. The lower cover contains a first and a second burner hole, forming two flame rings. The outer gas chamber stores and distributes gas to these flame rings. Furthermore, the first and second burner holes are staggered in height and position, preventing excessive flame concentration or dispersion, optimizing flame distribution and stability, improving heating uniformity, and increasing cooking efficiency. A jump hole is also provided between the first burner holes of each adjacent group. The jump hole is also staggered with the second burner hole, providing an additional air passage for the upper flame. This allows air to enter the combustion zone of the lower cover directly, avoiding interference of air mixing with other burner holes, promoting complete combustion of the gas, ensuring complete mixing of gas and air, and significantly reducing incomplete combustion.
[0017] The cross-sectional diameter of the first burner hole 51 is greater than that of the jump hole 53 and the second burner hole 52. The larger diameter of the first burner hole allows it to inject more gas, creating a stronger flame that serves as the primary combustion output, meeting the demands of high-temperature stir-frying. Meanwhile, the smaller diameters of the jump hole and the second burner hole not only supplement the upper flame with air but also act as auxiliary flames, controlling the gas output flow and air-to-fuel ratio to optimize the overall combustion effect, further improving combustion efficiency and flame stability.
[0018] The first flame hole 51, the second flame hole 52, and the jump hole 53 are inclined at an angle of 0-45° to the central axis of the lower cover 2. The inclined design of the flame holes and jump holes allows the combustion gas to mix thoroughly with the air, improving the combustion rate, when injected from these holes, as the angle creates a specific injection direction. Furthermore, the inclined design makes the flame more directional, significantly reducing interference from external airflow, preventing the flame from drifting or extinguishing, and effectively guiding air to the upper region to maintain flame stability.
[0019] The outer side plate 22 is inclined inward and recessed below the upper end plate 21. The inward and inclined shape of the outer side plate forms a converging structure, which allows the gas to flow more concentratedly to the first burner hole, the second burner hole, and the jump hole in the inclined and concave design of the body. This further reduces the direct impact of external air on the flame, making the combustion environment more stable and suitable for complex operating environments, thus expanding its applicability.
[0020] The inner side plate 23 has an internally threaded hole 61 at its top. Correspondingly, the bottom of the upper cover 1 has an externally threaded post 62. The externally threaded post 62 is screwed into the internally threaded hole 61, connecting the upper cover 1 and the lower cover 2 as a whole. This simple threaded connection allows for a convenient and quick integration of the upper and lower covers, creating a stable structure that can be easily disassembled. This not only facilitates cleaning and maintenance of the flame cover but also prevents clogging, extending its lifespan and ensuring its normal operation.
[0021] The upper cover 1 has several upper ignition holes 11 evenly distributed around its outer circumference, and these upper ignition holes 11 are interconnected with the inner gas cavity 4. The upper ignition holes form a third layer of flame rings, which, together with the two layers of flame rings on the lower cover, form a multi-layer flame ring setup, creating a multi-layer synergistic effect. This increases the flame coverage area, improves stability, and allows the multi-layer flame to adapt to different firepower requirements.
[0022] Working Principle: The central burner cap features a split design, comprising an upper and lower cover, forming a multi-layered flame ring system for coordinated combustion. The independent gas chamber structure ensures that the flame rings do not interfere with each other, and the multi-layered flame system enhances combustion efficiency. A staggered perforation between the first and second burner holes provides air to the upper flame, ensuring thorough mixing of the fuel gas and air, optimizing the fuel-air mixture ratio, and guaranteeing uniform flame distribution and improved combustion efficiency. Furthermore, the inclined design of the burner holes and perforations further enhances the mixing effect and flame stability. The threaded connection between the upper and lower covers allows for easy disassembly and installation, facilitating cleaning and maintenance and extending the product's lifespan, thus enabling its widespread adoption.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A center flame cap with a jump hole, characterized in that: It includes an upper cover (1) and a lower cover (2). The upper cover (1) is installed in the middle of the lower cover (2) and is connected to the lower cover (2). The lower cover (2) includes an upper end plate (21) and an outer side plate (22) and an inner side plate (23) extending downward on both sides respectively. The outer side plate (22) and the inner side plate (23) enclose an annular groove-shaped external air cavity (3). Several first fire holes (51) and second fire holes (52) are evenly distributed around the circumference of the outer side plate (22). The first fire hole (51) is staggered above the second fire hole (52); the first fire hole (51) is evenly distributed in several groups around its circumference, and a gap is left between each group of first fire holes (51) to form an empty area. The bottom of the empty area is provided with several jump holes (53) through the outer side plate (22). The jump holes (53) are staggered with the second fire hole (52). The inner side plate (23) is connected to form an annular inner air cavity (4), and the upper cover (1) is connected to the inner air cavity (4).
2. The center fire cover for a jump hole according to claim 1, characterized in that: The cross-sectional diameter of the first fire hole (51) is greater than that of the jump hole (53) and the second fire hole (52).
3. A center flame cap with a jump hole according to claim 1, characterized in that: The first fire hole (51), the second fire hole (52), and the jump hole (53) are inclined at an angle of 0-45° to the central axis of the lower cover (2).
4. A center fire cover for a jump hole according to claim 1, characterized in that: The outer side plate (22) is inclined inward and recessed below the upper end plate (21).
5. A center flame cap with a jump hole according to claim 1, characterized in that: The inner side plate (23) has an internal threaded hole (61) at the top. Correspondingly, the bottom of the upper cover (1) is provided with an external threaded post (62). The external threaded post (62) is screwed into the internal threaded hole (61) to connect the upper cover (1) and the lower cover (2) into one unit.
6. A center fire cover for a jump hole according to claim 1, characterized in that: The upper cover (1) has several ignition holes (11) evenly distributed around its outer circumference, and the ignition holes (11) are connected to the inner air cavity (4).