Full-air-inlet combined burner

Abstract

The utility model provides a full-air-inlet combined burner, and belongs to the technical field of gas cookers. Comprising a bottom plate, the top of the bottom plate is rotationally connected with a stove base, and a center injection pipe and an outer ring injection pipe are arranged at the bottom of the stove base; the stove base is provided with a center mixing cavity communicated with the center injection pipe and an outer ring mixing cavity communicated with the outer ring injection pipe, a large-R-shaped gas channel is arranged between the outer ring injection pipe and the outer ring mixing cavity, and a splitter arranged above the gas channel is arranged on the side wall of the outer ring mixing cavity. The bottom wall of the outer ring mixing cavity is provided with pressure regulating bosses arranged on the two sides of the outer ring injection pipe. According to the utility model, the product power can reach higher, and various performances are obviously better than those of the same kind of products in the market; the sucked airflow is fast and more, the combustible gas and the air are fully mixed, the combustion is more sufficient, and the emission of CO is lower; when the secondary air is supplemented, air flow can take away some heat generated by the burner, the temperature of a glass panel below the burner is lowered, and then the probability of explosion of the glass panel is lowered.

Description

Technical Field

[0001] The utility model provides a fully air-inlet combined burner, belonging to the technical field of gas cookers. Background Art

[0002] The combined burner, commonly known as a flip-top stove in the household gas cooker industry, is fashionable, generous, and convenient for cleaning. It has been deeply loved by consumers since it was launched on the market.

[0003] However, at present, due to the unreasonable design structure of the ejector pipe on the market, there are product defects such as relatively small product power, excessive CO emissions, poor heat dissipation, and resulting in the explosion of the glass panel during use. Based on this, the utility model provides a fully air-inlet combined burner. Summary of the Invention

[0004] The technical problem solved by the utility model is: product defects such as relatively small product power, excessive CO emissions, poor heat dissipation, and resulting in the explosion of the glass panel.

[0005] To solve the technical problem, the technical solution provided by the utility model is: a fully air-inlet combined burner, including a bottom plate, a stove base rotatably connected to the top of the bottom plate, a central ejector pipe and an outer ring ejector pipe provided at the bottom of the stove base; a central mixing chamber communicating with the central ejector pipe and an outer ring mixing chamber communicating with the outer ring ejector pipe are provided on the stove base, a mixing chamber upper cover is provided at the top of the outer ring mixing chamber, a plurality of outer ring burner caps are provided on the circumference of the top of the mixing chamber upper cover, a central burner cap is provided at the top of the central mixing chamber, a gas passage in a large R shape is provided between the outer ring ejector pipe and the outer ring mixing chamber, a flow dividing piece is provided on the side wall of the outer ring mixing chamber above the gas passage, and pressure regulating bosses are provided on the bottom wall of the outer ring mixing chamber on both sides of the outer ring ejector pipe; an opening bottom cover is provided at the bottom of the stove base below the central ejector pipe and the outer ring ejector pipe, and four foot supports are provided on the circumference of the bottom of the opening bottom cover.

[0006] Further, legs are provided at the bottom of the bottom plate, flipping support frames symmetrically connected to one end of the bottom of the stove base are provided at the top of the bottom plate, and a drainage and heat dissipation cavity is formed between the bottom plate and the opening bottom cover.

[0007] Further, both the central ejector pipe and the outer ring ejector pipe include an upper half ejector pipe provided at the bottom of the stove base and a lower half ejector pipe fixed to the bottom of the upper half ejector pipe by screws.

[0008] Further, a stove rack card slot is provided at the top of the stove base outside the mixing chamber upper cover, and a stove rack matching with the stove rack card slot and provided outside the mixing chamber upper cover is provided at the top of the stove base.

[0009] Furthermore, both the upper half injection tube and the lower half injection tube include an air suction tube, a mixing tube, and a diffuser tube that are distributed in sequence. The air suction tube includes a head and a contraction tube that are distributed in sequence.

[0010] Furthermore, the inner wall diameter of the mixing tube of the central injection tube is d. The lengths of the various parts of the central injection tube are in a proportional relationship with the inner wall diameter d of the mixing tube. The length of the mixing tube is d1 = 3.3d, the length of the diffuser tube is d2 = 3.5d, the length of the air suction tube is d3 = 2.0d, the length of the head is d4 = 0.9d, and the length of the contraction tube is r = 1.1d.

[0011] Furthermore, the inner wall diameter of the mixing tube of the outer ring injection tube is D. The lengths of the various parts of the outer ring injection tube are in a proportional relationship with the inner wall diameter D of the mixing tube. The length of the mixing tube is D1 = 1.81D, the length of the diffuser tube is D2 = 4.21D, the length of the air suction tube is D3 = 1.29D, the length of the head is D4 = 0.73D, and the length of the contraction tube is R = 0.56D.

[0012] Furthermore, the shunt plate is provided with shunt holes, and the height of the outer ring mixing cavity ≤ 5 mm.

[0013] Furthermore, a wire pressing groove is provided on one side of the bottom of the stove base. A pressing piece is fixedly installed at the bottom of the wire pressing groove through a screw. A wire leading groove is provided on the top of the bottom plate, and a panel pressing plate placed on the top of the wire leading groove is provided on the top of the bottom plate.

[0014] Advantages of the present utility model:

[0015] 1. Under the combined action of the shunt plate, pressure regulating boss, etc. in the outer ring mixing cavity, the product power is also greater, and various performances are significantly better than those of the same type of products on the market;

[0016] 2. By adopting the central injection tube and the outer ring injection tube in a certain proportional relationship, the air flow velocity at the head is faster than that of the conventional size, the inhaled air flow is fast and large, the combustible gas is mixed with air more fully, the combustion is more complete, and the CO emission is lower;

[0017] 3. When burning, the secondary air supplement required for a part of the fire in the center and the outer ring needs to enter the diversion and heat dissipation cavity from the bottom cover with openings outside the burner, and then enter the inner side of the stove base. During this process, the air flow can carry away some of the heat generated by the burner, effectively reducing the temperature of the glass panel below the burner and reducing the probability of explosion of the glass panel below the burner. Description of the drawings

[0018] Figure 1 Structural schematic diagram of a fully air intake combined burner of the present utility model Figure 1 .

[0019] Figure 2 Structural schematic of a fully air - inlet combined burner of the present utility model Figure 2 。

[0020] Figure 3 Partial structural schematic of a fully air - inlet combined burner of the present utility model Figure 1 。

[0021] Figure 4 Partial structural schematic of a fully air - inlet combined burner of the present utility model Figure 2 。

[0022] Figure 5 Partial structural schematic of a fully air - inlet combined burner of the present utility model Figure 3 。

[0023] Figure 6 Partial structural schematic of a fully air - inlet combined burner of the present utility model Figure 4 。

[0024] Figure 7 Partial structural schematic of a fully air - inlet combined burner of the present utility model Figure 5 。

[0025] 1. Bottom plate; 2. Stove base; 3. Central injection pipe; 4. Outer - ring injection pipe; 5. Central mixing chamber; 6. Outer - ring mixing chamber; 7. Mixing - chamber upper cover; 8. Outer - ring burner cap; 9. Central burner cap; 10. Gas channel; 11. Shunt plate; 12. Pressure - regulating boss; 13. Perforated bottom cover; 14. Foot support; 15. Tipping support frame; 16. Upper - half injection pipe; 17. Lower - half injection pipe; 18. Stove - rack card slot; 19. Suction pipe; 20. Mixing pipe; 21. Diffusion pipe; 22. Head; 23. Shrinkage pipe; 24. Shunt hole; 25. Pressure - groove; 26. Lead - wire groove; 27. Panel pressing plate. Specific embodiments

[0026] The present utility model will be further described below with reference to the accompanying drawings.

[0027] According to the appendix Figure 1 、 3, as shown in Figures 5 and 6: The utility model provides a fully air-inlet combined burner, which includes a bottom plate 1. A stove base 2 is rotatably connected to the top of the bottom plate 1. A central injection pipe 3 and an outer ring injection pipe 4 are provided at the bottom of the stove base 2. Both the central injection pipe 3 and the outer ring injection pipe 4 include an upper half injection pipe 16 arranged at the bottom of the stove base 2 and a lower half injection pipe 17 fixed to the lower part of the upper half injection pipe 16 by screws. Both the upper half injection pipe 16 and the lower half injection pipe 17 include a suction pipe 19, a mixing pipe 20, and a diffuser pipe 21 arranged in sequence. The suction pipe 19 includes a head 22 and a contraction pipe 23 arranged in sequence. The inner wall diameter of the mixing pipe 20 of the central injection pipe 3 is d. The lengths of each part of the central injection pipe 3 are in a proportional relationship with the inner wall diameter d of the mixing pipe 20. The length of the mixing pipe 20 is d1 = 3.3d, the length of the diffuser pipe 21 is d2 = 3.5d, the length of the suction pipe 19 is d3 = 2.0d, the length of the head 22 is d4 = 0.9d, and the length of the contraction pipe 23 is r = 1.1d. The inner wall diameter of the mixing pipe 20 of the outer ring injection pipe 4 is D. The lengths of each part of the outer ring injection pipe 4 are in a proportional relationship with the inner wall diameter D of the mixing pipe 20. The length of the mixing pipe 20 is D1 = 1.81D, the length of the diffuser pipe 21 is D2 = 4.21D, the length of the suction pipe 19 is D3 = 1.29D, the length of the head 22 is D4 = 0.73D, and the length of the contraction pipe 23 is R = 0.56D. With the above appropriate proportions, the air flow velocity at the head 22 of the central injection pipe 3 and the outer ring injection pipe 4 is faster than that of the conventional size, the inhaled air flow is faster and more, the combustible gas and air are mixed more fully, the combustion is more complete, and the CO emission is lower.

[0028] According to the attached Figure 1 , 3 , as shown in Figures 4 and 6: A central mixing cavity 5 communicating with the central injection pipe 3 and an outer ring mixing cavity 6 communicating with the outer ring injection pipe 4 are provided on the stove base 2. A mixing cavity upper cover 7 is provided at the top of the outer ring mixing cavity 6. A stove rack slot 18 is provided at the top of the stove base 2 outside the mixing cavity upper cover 7. A stove rack matching with the stove rack slot 18 and located outside the mixing cavity upper cover 7 is provided at the top of the stove base 2. The stove rack is used to support the frying pan. A plurality of outer ring burner caps 8 are provided on the circumference of the top of the mixing cavity upper cover 7. A central burner cap 9 is provided at the top of the central mixing cavity 5. A gas passage 10 in a large R shape is provided between the outer ring injection pipe 4 and the outer ring mixing cavity 6. The included angle between the gas passage 10 and the plane exceeds 30°. A shunt plate 11 is provided on the side wall of the outer ring mixing cavity 6 above the gas passage 10. Shunt holes 24 are provided on the shunt plate 11, ensuring that the air flow in the outer ring injection pipe 4 evenly flows to the left and right sides of the outer ring mixing cavity 6. The height of the outer ring mixing cavity 6 ≤ 5 mm to ensure that there is sufficient pressure in the outer ring mixing cavity 6 to spray the mixed combustible gas and ensure normal combustion. A pressure regulating boss 12 is provided on the bottom wall of the outer ring mixing cavity 6 on both sides of the outer ring injection pipe 4 to ensure uniform air pressure everywhere in the outer ring mixing cavity 6, and the fire power of each outer ring burner cap 8 is almost the same.

[0029] According to the attached Figure 2 , 3 As shown in Figures 7 and 8: the bottom of the stove base 2 is provided with an open bottom cover 13 placed below the central ejection tube 3 and the outer ring ejection tube 4, the bottom circumference of the open bottom cover 13 is provided with four foot supports 14, the bottom of the bottom plate 1 is provided with legs, and the top of the bottom plate 1 is symmetrically provided with a flip support frame 15 rotatably connected to one end of the bottom of the stove base 2, and a drainage and heat dissipation cavity is formed between the bottom plate 1 and the open bottom cover 13. When it is subjected to force, it is ensured that the bearing force falls evenly on the four foot supports 14, rather than on the legs and the flip support frame 15, to avoid uneven force causing the flip support frame to break. When the burner is in use, the secondary air required for the central fire and part of the outer ring fire is supplemented by the open bottom cover 13 from the outside of the burner into the drainage and heat dissipation cavity, and then enters the inner side of the stove base 2. During this process, the air is flowing, so it can take away some of the heat generated by the burner, effectively reduce the temperature of the glass panel below the burner, and reduce the probability of the glass panel below the burner exploding.

[0030] According to the attached Figure 1 , 3 As shown in , 5: a wire pressing groove 25 is provided on one side of the bottom of the stove base 2, and a pressing piece is fixedly installed at the bottom of the wire pressing groove 25 by screws, and the wiring is pressed between the wire pressing groove 25 and the pressing piece, so that the wiring end of the wiring is located at the front end of the wire pressing groove 25, and a lead groove 26 is provided on the top of the bottom plate 1. A panel pressing plate 27 is provided on the top of the lead groove 26. The wiring pressed between the wire pressing groove 25 and the pressing piece under the stove base 2 is led out from the lead groove 26, and the wiring is pressed by the panel pressing plate 27 to prevent the wiring from falling off due to the wiring port being pulled due to the flipping of the burner.

[0031] Principle of the utility model

[0032] When in use, by adopting the central ejector tube 3 and the outer ring ejector tube 4 in a certain proportion, the air flow speed of the head 22 of the central ejector tube 3 and the outer ring ejector tube 4 is faster than that of the conventional size, the air flow inhaled is fast and more, the combustible gas and air are mixed more fully, the combustion is more complete, and the CO emission is lower. When the burner is in use, the secondary air required for the central fire and a part of the outer ring fire is supplemented by the open bottom cover 13 from the outside of the burner into the drainage and heat dissipation cavity, and then enters the inner side of the stove base 2. During this process, the air is flowing, so it can take away some of the heat generated by the burner, effectively reduce the temperature of the glass panel under the burner, and reduce the probability of the glass panel under the burner exploding. Under the joint action of the diverter plate 11 and the pressure regulating boss 12 in the outer ring mixing cavity 6, the product power is also greater, and various performances are significantly better than similar products on the market.

[0033] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and without departing from the gist of the creation of the present utility model, they design without creative efforts structural manners and embodiments similar to the technical solution, all of which shall fall within the protection scope of the present utility model.

Claims

1. A fully air-inlet combined burner, comprising a bottom plate (1), and a cooking base (2) is rotatably connected to the top of the bottom plate (1), and is characterized in that: The bottom of the stove base (2) is provided with a central injection pipe (3) and an outer ring injection pipe (4); a central mixing cavity (5) communicating with the central injection pipe (3) and an outer ring mixing cavity (6) communicating with the outer ring injection pipe (4) are arranged on the stove base (2). A mixing cavity upper cover (7) is arranged at the top of the outer ring mixing cavity (6). A plurality of outer ring burner caps (8) are arranged on the circumference of the top of the mixing cavity upper cover (7). A central burner cap (9) is arranged at the top of the central mixing cavity (5). A gas passage (10) in a large R shape is arranged between the outer ring injection pipe (4) and the outer ring mixing cavity (6). A flow dividing piece (11) is arranged on the side wall of the outer ring mixing cavity (6) above the gas passage (10). Pressure regulating convex platforms (12) are arranged on the bottom wall of the outer ring mixing cavity (6) on both sides of the outer ring injection pipe (4); an opening bottom cover (13) is arranged at the bottom of the stove base (2) below the central injection pipe (3) and the outer ring injection pipe (4). Four leg supports (14) are arranged on the circumference of the bottom of the opening bottom cover (13).

2. The all-air-inlet combined burner according to claim 1, characterized in that: Legs are arranged at the bottom of the bottom plate (1). Flipping support frames (15) symmetrically connected to one end of the bottom of the stove base (2) in a rotational manner are arranged at the top of the bottom plate (1). A drainage and heat dissipation cavity is formed between the bottom plate (1) and the opening bottom cover (13).

3. The all-air-inlet combined burner according to claim 1, wherein: Both the central injection pipe (3) and the outer ring injection pipe (4) include an upper half injection pipe (16) arranged at the bottom of the stove base (2) and a lower half injection pipe (17) fixedly arranged at the bottom of the upper half injection pipe (16) by screws.

4. The all-air intake combined burner according to claim 1, wherein: A stove rack slot (18) is arranged at the top of the stove base (2) outside the mixing cavity upper cover (7). A stove rack matching the stove rack slot (18) and arranged outside the mixing cavity upper cover (7) is arranged at the top of the stove base (2).

5. The all-air-inlet combined burner according to claim 3, wherein: Both the upper half injection pipe (16) and the lower half injection pipe (17) include a suction pipe (19), a mixing pipe (20), and a diffuser pipe (21) distributed in sequence. The suction pipe (19) includes a head (22) and a contraction pipe (23) distributed in sequence.

6. The all-air intake combined burner according to claim 5, wherein: The inner wall diameter of the mixing pipe (20) of the central injection pipe (3) is d. The lengths of each part of the central injection pipe (3) are in a proportional relationship with the inner wall diameter d of the mixing pipe (20). The length of the mixing pipe (20) is d1 = 3.3d. The length of the diffuser pipe (21) is d2 = 3.5d. The length of the suction pipe (19) is d3 = 2.0d. The length of the head (22) is d4 = 0.9d. The length of the contraction pipe (23) is r = 1.1d.

7. The all-air-inlet combined burner according to claim 5, wherein: The inner wall diameter of the mixing pipe (20) of the outer ring injection pipe (4) is D. The lengths of each part of the outer ring injection pipe (4) are in a proportional relationship with the inner wall diameter D of the mixing pipe (20). The length of the mixing pipe (20) is D1 = 1.81D. The length of the diffuser pipe (21) is D2 = 4.21D. The length of the suction pipe (19) is D3 = 1.29D. The length of the head (22) is D4 = 0.73D. The length of the contraction pipe (23) is R = 0.56D.

8. The all-air intake combined burner according to claim 1, characterized in that: The shunt piece (11) is provided with a shunt hole (24), and the height of the outer ring mixing chamber (6) ≤ 5 mm.

9. The all-air-inlet combined burner according to claim 1, characterized in that: One side of the bottom of the stove base (2) is provided with a wire pressing groove (25), a pressing piece is fixedly installed at the bottom of the wire pressing groove (25) through a screw, a wire leading groove (26) is arranged at the top of the bottom plate (1), and a panel pressing plate (27) placed on the top of the wire leading groove (26) is arranged at the top of the bottom plate (1).

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