Combustion device for a gas stove

Abstract

The utility model discloses a kind of combustion devices of gas stove, including cast-iron burner, small fire gas outlet hole is opened in the center area of cast-iron burner, there is big fire gas outlet hole in the outer ring area of cast-iron burner, small fire cover is nested in the center area of cast-iron burner, big fire cover is covered in the outer ring area of cast-iron burner, the top of cast-iron burner is fixedly connected with igniter needle, the top surface of big fire cover is evenly provided with several big fire holes, the both sides of big fire cover are symmetrically provided with extension assembly, and extension assembly includes extension pipe, several through holes are evenly provided in the top side of extension pipe, branch pipe is fixedly connected with the outside of big fire cover, and adjusting assembly for adjusting the position of the both sides of extension pipe is arranged on big fire cover.In the utility model, the both sides of extension pipe cooperate with small fire cover and big fire cover to form inner, middle and outer three layers of combustion structure, improve combustion uniformity, the position of the both sides of extension pipe can be adjusted by adjusting assembly, and flame combustion coverage area can be expanded according to the size of pot.

Description

Technical Field

[0001] This utility model relates to the technical field of combustion devices for gas furnaces, and more particularly to a combustion device for a gas furnace. Background Technology

[0002] A gas stove is a heating device that uses gas (such as natural gas or liquefied petroleum gas) as fuel and is widely used in homes, businesses, and industries. A gas stove heats cookware or the stovetop by mixing gas with air and then igniting the mixture. Gas stoves typically have high combustion efficiency and can provide heat quickly. The combustion unit of a gas stove consists of a burner head and a burner cap. The bottom of the burner head is integrated with the ejector, and the burner cap is placed on top of the burner head. Its main function is to evenly distribute the gas-air mixture onto the burner holes. The gas exiting the burner holes is ignited by an open flame, and then mixes again with the surrounding air, ensuring complete combustion and a stable flame.

[0003] Chinese patent publication number CN203869030U discloses a combustion device for a gas stove burner head. It includes a flame and flameout protection probe, a flame support, a stove body compression pipe, a burner cap, and a nozzle mounting seat. The lower end of the stove body compression pipe extends into the nozzle mounting seat. The burner cap covers the burner body compression pipe. The lower part of the flame support is connected to the nozzle mounting seat, and its upper part is connected to the flame and flameout protection probe. The upper part of the flame and flameout protection probe extends into a groove in the lower part of the burner body compression pipe cover. The burner body compression pipe is divided into upper and lower parts: the upper part is a mixing diffuser pipe with a tapered inner hole that is larger at the top and smaller at the bottom; the lower part is an intake contraction pipe with a tapered inner hole that is larger at the bottom and smaller at the top. A through hole is provided in the center of the burner body compression pipe cover. This allows for thorough and uniform mixing of air and gas, improving thermal efficiency and saving energy.

[0004] Existing gas stove combustion devices suffer from problems such as a limited number of burner holes on the burner head, resulting in a limited flame coverage area after ignition and making it inconvenient to extend the flame to accommodate different cookware sizes. To overcome these disadvantages, this invention provides a combustion device for a gas stove. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a combustion device for a gas furnace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combustion device for a gas furnace, comprising a cast iron furnace head, wherein a small flame gas outlet is provided in the central area of ​​the cast iron furnace head, and a large flame gas outlet is provided in the outer ring area of ​​the cast iron furnace head; a small flame cap is nested in the central area of ​​the cast iron furnace head; a large flame cap is covered in the outer ring area of ​​the cast iron furnace head and aligned with the gas outlet of the outer ring of the cast iron furnace head; an ignition needle is fixedly connected to the top of the cast iron furnace head; a plurality of large flame holes are evenly provided on the top surface of the large flame cap; extension components are symmetrically arranged on both sides of the large flame cap; each extension component includes an extension tube; a plurality of through holes are evenly provided on the top side of the extension tube; a branch tube is fixedly connected to the outer side of the large flame cap; a sleeve is fixedly connected to the inner side of the extension tube at the position corresponding to the branch tube; the sleeve is slidably sleeved on the outer side of the branch tube; a support plate is fixedly connected to the center of the rear side of the large flame cap; a telescopic rod is fixedly connected between the extension tube and the support plate; and an adjustment component for adjusting the position of the extension tubes on both sides is provided on the large flame cap.

[0007] Furthermore, the top surface of the small flame cap is provided with several small flame holes, which are aligned with the central gas outlet hole of the cast iron furnace head.

[0008] Furthermore, the adjustment assembly includes a fixed block fixed to the center of the front side of the large fire cover, a screw rotatably connected to the fixed block, a movable block threadedly connected to the screw, a knob fixed to the end of the screw, a guide rod fixed to the fixed block, the movable block slidably connected to the guide rod, a first connecting seat fixed to both ends of the movable block, a connecting rod hinged inside the first connecting seat, a second connecting seat fixed to the front end of the extension tube, and the end of the connecting rod hinged to the corresponding second connecting seat.

[0009] Furthermore, the size of the branch pipe is adapted to the sleeve.

[0010] Furthermore, the extension tube has an arc-shaped structure.

[0011] Furthermore, the top of the large fire cover is configured as a curved semi-circular structure.

[0012] The beneficial effects of this utility model are:

[0013] When in use, the combustion device of this gas furnace has the following advantages:

[0014] 1. In this solution, the gas introduced into the cast iron burner head is ejected through the small flame hole of the small burner cap and the large flame hole of the large burner cap. The gas introduced into the large burner cap can also be diverted to the extension pipe through the branch pipe and the sleeve pipe and ejected through the through hole. The extension pipes on both sides cooperate with the small burner cap and the large burner cap to form an inner, middle and outer three-layer combustion structure. By adjusting the position of the extension pipes on both sides by adjusting the component, the flame combustion coverage area can be expanded according to the size of the pot, and the combustion uniformity can be improved.

[0015] 2. In this design, the top of the large flame cap is designed as a curved semi-circular structure, and the direction of the large flame holes is different. After the gas is ignited, the flame direction is evenly dispersed, which further improves the coverage area of ​​the flame after combustion. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram from the rear view of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the large fire cover portion of this utility model.

[0020] The attached figures are labeled as follows:

[0021] 1. Cast iron furnace head; 2. Small flame cap; 3. Large flame cap; 4. Ignition needle; 5. Large flame hole; 6. Branch pipe; 7. Extension pipe; 8. Sleeve; 9. Through hole; 10. Support plate; 11. Telescopic rod; 12. Fixing block; 13. Screw; 14. Moving block; 15. Knob; 16. Guide rod; 17. First connecting seat; 18. Connecting rod; 19. Second connecting seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-3 As shown, the present invention has the following specific embodiments.

[0024] Example 1

[0025] A combustion device for a gas stove includes a cast iron burner head 1. A small flame gas outlet is located in the central area of ​​the cast iron burner head 1, and a large flame gas outlet is located in the outer ring area of ​​the cast iron burner head 1. A small flame cap 2 is nested in the central area of ​​the cast iron burner head 1. The top surface of the small flame cap 2 has several small flame holes aligned with the central gas outlet of the cast iron burner head 1. A large flame cap 3 covers the outer ring area of ​​the cast iron burner head 1 and is aligned with the outer ring gas outlet of the cast iron burner head 1. An ignition needle 4 is fixedly connected to the top of the cast iron burner head 1. Several large flame holes 5 are evenly distributed on the top surface of the large flame cap 3. The top of the large flame cap 3 is designed as a curved semi-circular structure. The two sides of the flame cover 3 are symmetrically provided with extension components, each including an extension tube 7. The extension tube 7 has an arc-shaped structure and several through holes 9 are evenly opened on the top side of the extension tube 7. A branch tube 6 is fixedly connected to the outside of the flame cover 3. A sleeve 8 is fixedly connected to the inside of the extension tube 7 at the position corresponding to the branch tube 6. The sleeve 8 is slidably sleeved on the outside of the branch tube 6. The size of the branch tube 6 is adapted to the sleeve 8. A support plate 10 is fixedly connected to the center of the rear side of the flame cover 3. A telescopic rod 11 is fixedly connected between the extension tube 7 and the support plate 10. An adjustment component for adjusting the position of the extension tubes 7 on both sides is provided on the flame cover 3.

[0026] In this embodiment, as Figure 1-3 As shown, the gas introduced into the cast iron burner head is ejected through the small flame hole of the small flame cap 2 and the large flame hole 5 of the large flame cap 3. The gas introduced into the large flame cap 3 can also be diverted to the extension pipe 7 through the branch pipe 6 and the sleeve 8, and ejected through the through hole 9. The extension pipes 7 on both sides, together with the small flame cap 2 and the large flame cap 3, form an inner, middle and outer three-layer combustion structure. The ignition needle 4 is used for ignition. By adjusting the position of the extension pipes 7 on both sides, the flame combustion coverage area can be expanded according to the size of the pot, and the combustion uniformity can be improved. The top of the large flame cap 3 is set with a curved semi-circular structure. The direction of the large flame hole 5 is different. After the gas is ignited, the flame direction is evenly dispersed, which also improves the flame coverage area after combustion.

[0027] Example 2

[0028] The adjustment assembly includes a fixed block 12 fixed to the center of the front side of the large fire cover 3. A screw 13 is rotatably connected to the fixed block 12. A movable block 14 is threadedly connected to the screw 13. A knob 15 is fixed to the end of the screw 13. A guide rod 16 is fixed to the fixed block 12. The movable block 14 is slidably connected to the guide rod 16. A first connecting seat 17 is fixed to both ends of the movable block 14. A connecting rod 18 is hinged inside the first connecting seat 17. A second connecting seat 19 is fixed to the front end of the extension tube 7. The end of the connecting rod 18 is hinged to the corresponding second connecting seat 19.

[0029] In this embodiment, as Figure 1As shown, rotating the knob 15 causes the screw 13 to rotate, which in turn causes the moving block 14 to slide along the guide rod 16. In conjunction with the combined action of the first connecting seat 17, the connecting rod 18, and the second connecting seat 19, the extension tubes 7 on both sides of the large fire cover 3 move towards or away from each other. The sleeve 8 slides onto the outer wall of the branch tube 6, and the telescopic rod 11 extends and retracts accordingly, making it easy to adjust the position of the extension tubes 7 on both sides.

[0030] The working principle of this utility model is as follows: Rotating the knob 15 drives the screw 13 to rotate, which in turn drives the moving block 14 to slide along the guide rod 16. With the combined action of the first connecting seat 17, the connecting rod 18, and the second connecting seat 19, the extension pipes 7 on both sides of the large flame cover 3 move towards or away from each other. The sleeve 8 slides onto the outer wall of the branch pipe 6, and the telescopic rod 11 extends and retracts accordingly, making it easy to adjust the position of the extension pipes 7 on both sides. The gas introduced into the cast iron furnace head is ejected through the small flame hole of the small flame cover 2 and the large flame hole 5 of the large flame cover 3. The gas introduced into the large flame cover 3 can also be diverted to the extension pipe 7 through the branch pipe 6 and the sleeve 8 and ejected through the through hole 9. The extension pipes 7 on both sides, together with the small flame cover 2 and the large flame cover 3, form an inner, middle, and outer three-layer combustion structure, which expands the flame combustion coverage area according to the size of the pot and improves the uniformity of combustion.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A combustion device for a gas-fired furnace, comprising a cast iron furnace head (1), characterized in that: The central area of ​​the cast iron furnace head (1) has a small flame gas outlet hole, and the outer ring area of ​​the cast iron furnace head (1) has a large flame gas outlet hole. A small flame cover (2) is nested in the central area of ​​the cast iron furnace head (1). The outer ring area of ​​the cast iron furnace head (1) is covered with a large flame cover (3) and aligned with the outer ring gas outlet hole of the cast iron furnace head (1). An ignition needle (4) is fixedly connected to the top of the cast iron furnace head (1). Several large flame holes (5) are evenly opened on the top surface of the large flame cover (3). Extension components are symmetrically arranged on both sides of the large flame cover (3). The extension components include extension tubes ( 7) The top side of the extension tube (7) is evenly provided with several through holes (9). The outer side of the large flame cover (3) is fixedly connected with a branch tube (6). The inner side of the extension tube (7) is fixedly connected with a sleeve (8) at the position corresponding to the branch tube (6). The sleeve (8) is slidably sleeved on the outer side of the branch tube (6). The center of the rear side of the large flame cover (3) is fixedly connected with a support plate (10). The extension tube (7) and the support plate (10) are both fixedly connected with telescopic rods (11). The large flame cover (3) is provided with an adjustment component for adjusting the position of the extension tubes (7) on both sides.

2. The combustion device for a gas furnace according to claim 1, characterized in that: The top surface of the small fire cover (2) is provided with several small fire holes, which are aligned with the central gas outlet of the cast iron furnace head (1).

3. The combustion device for a gas furnace according to claim 1, characterized in that: The adjustment assembly includes a fixed block (12) fixed to the center of the front side of the large fire cover (3), a screw (13) rotatably connected to the fixed block (12), a moving block (14) threadedly connected to the screw (13), a knob (15) fixed to the end of the screw (13), a guide rod (16) fixed to the fixed block (12), the moving block (14) and the guide rod (16) slidably connected, a first connecting seat (17) fixed to both ends of the moving block (14), a connecting rod (18) hinged inside the first connecting seat (17), a second connecting seat (19) fixed to the front end of the extension tube (7), and the end of the connecting rod (18) hinged to the corresponding second connecting seat (19).

4. The combustion device for a gas furnace according to claim 1, characterized in that: The size of the branch pipe (6) is adapted to the sleeve (8).

5. The combustion device for a gas furnace according to claim 1, characterized in that: The extension tube (7) has an arc-shaped structure.

6. The combustion device for a gas furnace according to claim 1, characterized in that: The top of the large fire cover (3) is set as a curved semi-circular structure.

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