An ignition burner for a gas stove head

Abstract

This utility model discloses an ignition burner for a gas stove head, comprising an ignition burner installed in the stove head body, a combustion chamber at the top of the stove head body, the ignition burner including an ignition burner body and a gas pipe, a communicating chamber at the bottom of the stove head body with a drain outlet communicating with the communicating chamber, an installation hole in the stove head body, the gas pipe being fixed in the installation hole, the ignition burner body being inserted into the installation hole and sleeved over the gas pipe with a gap between them, the ignition burner body having a fire needle installation hole, and an ignition needle and a flameout protection needle being inserted into the fire needle installation hole respectively; a protective cover is provided in the combustion chamber, the top of the ignition burner body being located inside the protective cover, multiple openings on the periphery of the protective cover, the bottom of which is inserted into the installation hole, and a drain channel communicating with the installation hole on the bottom periphery of the protective cover. This utility model can ensure the stability and convenience of the ignition burner in use, and has good performance.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, specifically to an ignition burner for a gas stove head. Background Technology

[0002] A burner equipped with an ignition burner is a stove that uses an ignition burner as its ignition source. The ignition burner typically includes a gas pipe, an ignition needle, and a flameout protection needle. During operation, the gas pipe delivers a fuel-air mixture, which is ignited by the ignition needle to generate a flame. The flameout protection needle senses the ionization signal generated by the flame, keeping the gas valve open. If there is no flame, the flameout protection needle does not sense the ionization signal and closes the gas valve to prevent gas leakage and ensure safety. When the burner is temporarily shut off, the flame of the ignition burner can act as a pilot light, continuously burning until the burner is used again, at which point the flame can be ignited. Therefore, a burner equipped with an ignition burner offers advantages such as convenient and efficient ignition, and high safety.

[0003] However, existing gas burners still have certain shortcomings. First, the combustion chamber top is open, making it inevitable that oil and water will fall in during use. This can easily cause short circuits in the ignition device, affect the flameout protection function, or lead to unstable flame combustion. Although there are currently methods to prevent oil and water from affecting the burner by adding covers to the ignition needle and flameout protection needle, these covers only prevent oil and water from accumulating in the combustion chamber and still affecting the flame combustion effect. Second, during use, the flame can be affected by strong airflow around the stove (such as wind), causing flame detachment and unstable combustion. Furthermore, the flameout protection needle of existing burners can easily misjudge flame detachment as flame extinguishing, leading to the closure of the gas valve and shutting off the burner, thus affecting normal use. In addition, when the ignition needle and flameout protection needle of the existing ignition burner need to be disassembled (such as when the ignition needle and / or flameout protection needle need to be replaced or maintained), the entire ignition burner must be removed from the burner head before the ignition needle and / or flameout protection needle can be removed from the ignition burner, which is a rather cumbersome disassembly and assembly process. Utility Model Content

[0004] To address the problems in the background art, this utility model proposes an ignition burner for a gas stove head, comprising an ignition burner installed in the stove head body, a combustion chamber at the top of the stove head body, the ignition burner including an ignition burner body and a gas pipe, a communicating chamber inside the bottom of the stove head body, a drain outlet communicating with the communicating chamber at the bottom of the stove head body, an axially extending mounting hole penetrating the stove head body, the gas pipe being fixed in the mounting hole, the ignition burner body being inserted into the mounting hole and sleeved on the gas pipe, a gap between the ignition burner body and the inner wall of the mounting hole, and two axially extending fire needle mounting holes penetrating the ignition burner body, with an ignition needle and a flameout protection needle respectively inserted into the two fire needle mounting holes;

[0005] The combustion chamber is equipped with a protective cover, the top of the ignition burner body is located inside the protective cover, the protective cover has multiple openings around its perimeter, the bottom of the protective cover is inserted into the mounting hole, and the bottom perimeter of the protective cover has multiple drainage channels communicating with the mounting hole.

[0006] Preferably, the top of the ignition burner body is provided with a mounting plate, the outer diameter of which is larger than the outer diameter of the ignition burner body, and the bottom of the protective cover is provided with an installation port, the diameter of which is not less than the outer diameter of the ignition burner body and less than the outer diameter of the mounting plate.

[0007] Preferably, the protective cover has an opening at the top, and a cover plate is inserted at the top of the protective cover to cover the opening.

[0008] Preferably, the bottom of the protective cover is provided with multiple clamping plates, which are arranged at intervals along the circumference of the protective cover. The distance between two adjacent clamping plates is the drainage channel. A clamping block is provided at the bottom of the clamping plate near the center of the protective cover. When the protective cover is inserted into the mounting hole, the side of the clamping block away from the center of the protective cover contacts the inner wall of the mounting hole.

[0009] Preferably, the sensing ends of the ignition needle and the flameout protection needle are both located inside the protective cover, and the sensing end of the flameout protection needle is annular.

[0010] Preferably, a fixing plate is fixed at the bottom of the burner body on one side of the mounting hole, and the fixing plate extends from the end away from the burner body toward the center of the mounting hole and is fixedly connected to the gas pipe.

[0011] Preferably, there is at least one drain outlet, which is located near the mounting hole and on both sides of the mounting hole.

[0012] Preferably, the fixing plate is provided with a threaded hole, and a tightening bolt is threaded into the threaded hole.

[0013] Preferably, a drain pipe is fixed in the mounting hole, the drain pipe is coaxial with the mounting hole, the top end of the drain pipe extends into the combustion chamber, the bottom of the protective cover is inserted into the drain pipe, and the bottom end of the drain pipe extends into the communicating chamber and is connected to the bottom wall of the burner body.

[0014] The top of the drain pipe is provided with an outwardly flared opening, and the connection between the opening and the drain pipe is a rounded transition edge. The drain pipe body located in the connecting room is provided with an air supply hole.

[0015] Preferably, the mounting hole, protective cover, ignition burner body, and gas pipeline are all located at the center of the furnace head body.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model features a protective cover that prevents oil and water from contacting the ignition burner, thus avoiding any impact on the ignition needle and flameout protection needle, and ensuring stable flame combustion. The bottom of the protective cover has a drainage channel that connects to the mounting hole. Oil and water can enter the mounting hole through the drainage channel, then enter the connecting chamber, and finally exit through the drain outlet connected to the connecting chamber. Furthermore, the drainage channel is located below the opening on the upper part of the protective cover. Because the oil and water level cannot exceed the location of the drainage channel, the oil and water cannot rise to the opening, making it difficult for them to enter the protective cover and contact the ignition burner. This utility model reduces the possibility of excessive oil and water accumulation in the combustion chamber, further improving the protection of the ignition burner and ensuring effective flame combustion.

[0018] 2. The protective cover of this invention can reduce the disturbance of the flame at the igniter caused by the external environment (such as wind), reducing the possibility of flame detachment. Furthermore, the sensing end of the flameout protection needle of this invention is annular, providing a larger sensing area with the flame, which greatly reduces the possibility of false detection and improves detection performance. This invention can prevent flame detachment or false detection of the flameout protection needle due to flame detachment, preventing the flame from being disturbed or extinguished due to false detection, and ensuring the stability of the burner head during use.

[0019] 3. The ignition needle and flameout protection needle of this utility model can be removed separately. When disassembly is required, simply pull the ignition needle and / or flameout protection needle outward from the top end of the ignition burner body. There is no need to remove the entire ignition burner, which makes it easy to replace or maintain the ignition needle and flameout protection needle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0022] Figure 3 This is a side sectional view of the overall structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of this utility model without the protective cover;

[0024] Figure 5 This is a side view of the present invention;

[0025] Figure 6 for Figure 5 Cross-sectional view of the structure in the DD direction;

[0026] Figure 7 This is a schematic diagram of the protective cover structure of this utility model. Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the protective cover structure of this utility model. Figure 2 ;

[0028] Figure 9 This is a schematic diagram of the ignition burner structure of this utility model;

[0029] Figure 10 for Figure 3 Enlarged view of the structure at point A in the middle.

[0030] The diagram is labeled as follows: 1. Burner head body; 2. Ignition burner body; 3. Gas pipeline; 4. Protective cover; 41. Mounting port; 42. Clamping plate; 43. Clamping block; 44. Drainage channel; 5. Through port; 6. Cover plate; 7. Ignition needle; 8. Flameout protection needle; 9. Drainage port; 10. Drainage pipe; 11. Tightening bolt; 12. Clamping platform; 13. Connecting chamber; 14. Combustion chamber; 15. Ventilation port; 16. Fuel port; 17. Fixing plate; 18. Ignition needle mounting hole; 19. Mixing connector; 20. Mounting hole; 21. Air supply hole. Detailed Implementation

[0031] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0032] In this article, terms such as "inner," "outer," "upper," and "lower" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0033] Combined with appendix Figure 1 - Appendix Figure 10An ignition burner for a gas stove head includes an ignition burner installed in a stove head body 1. The stove head body 1 has a combustion chamber 14 at its top. The ignition burner includes an ignition burner body 2 and a gas pipe 3. The ignition burner body 2 is made of ceramic material. The stove head body 1 has a connecting chamber 13 at its bottom. The stove head body 1 has a drain outlet 9 at its bottom that communicates with the connecting chamber 13. The stove head body 1 has an axially extending mounting hole 20 that penetrates the stove head body 1. The gas pipe 3 is fixed in the mounting hole 20. The ignition burner body 2 is inserted into the mounting hole 20 and sleeved on the gas pipe 3. That is, the ignition burner body 2 has an axially extending pipe installation channel at its center. The gas pipe 3 passes through the pipe installation channel. There is a gap between the ignition burner body 2 and the inner wall of the mounting hole 20. The ignition burner body 2 has two axially extending fire needle mounting holes 18 that penetrate the ignition burner body 2. An ignition needle 7 and a flameout protection needle 8 are respectively inserted into the two fire needle mounting holes 18.

[0034] The combustion chamber 14 is equipped with a protective cover 4. The top of the ignition burner body 2 is located inside the protective cover 4. The protective cover 4 has multiple openings 5 ​​around its perimeter. The bottom of the protective cover 4 is inserted into the mounting hole 20. The bottom perimeter of the protective cover 4 has multiple drainage channels 44 that communicate with the mounting hole 20.

[0035] The gas pipeline 3 is used to transport the gas mixture of fuel and air. One end of the gas pipeline 3 is located in the combustion chamber 14, and the other end extends to the bottom of the burner body 1 for inputting fuel and gas. Specifically, the end of the gas pipeline 3 located below the burner body 1 is connected to a mixing connector 19. The mixing connector 19 includes a fuel inlet, a pipe interface, and an air inlet connected to the same pipe body. The mixing connector 19 is threadedly connected to the end of the gas pipeline 3 through the pipe interface. The bottom of the burner body 1 is also provided with a vent 15 and a fuel inlet 16. The connecting chamber 13 is connected to the vent 15 and the fuel inlet 16 respectively. The vent 15 and the fuel inlet 16 are connected to an air source (such as a blower) and a fuel source (such as a gas cylinder) through a ventilation pipe and a fuel pipe respectively. The air inlet and the fuel inlet are connected to the ventilation pipe and the fuel pipe through a ventilation branch pipe and a fuel branch pipe respectively. The vent 15, the fuel inlet 16, the air inlet, and the fuel inlet are each controlled to be closed by a separate valve. The ventilation port 15 and fuel port 16 are used to provide air and fuel to the furnace body 1, respectively, and the gas pipeline 3 shares the air source and fuel source with the ventilation port 15 and fuel port 16 through the mixing joint 19.

[0036] The port 5 connects the combustion chamber 14 and the protective cover 4, so that the flame and mixed gas at the ignition burner and the furnace head body 1 can be interconnected.

[0037] When the burner is in use, oil and water can enter the mounting hole 20 through the drain channel 44, enter the connecting chamber 13 through the mounting hole 20, and then be discharged from the burner through the drain port 9.

[0038] Specifically, the top of the ignition burner body 2 is provided with a mounting plate 12, the outer diameter of which is larger than the outer diameter of the ignition burner body 2. The bottom of the protective cover 4 is provided with an installation opening 41, the diameter of which is not less than the outer diameter of the ignition burner body 2 and less than the outer diameter of the mounting plate 12. More specifically, the top of the protective cover 4 is open, and a cover plate 6 is inserted into the top of the protective cover 4 to cover the opening. The cover plate 6 is used to open or close the opening. During installation, the end of the ignition burner body 2 away from the mounting plate 12 can be inserted into the protective cover 4 through the top opening and through the installation opening 41. The ignition burner body 2 or the protective cover 4 can be moved until the bottom surface of the mounting plate 12 contacts the bottom surface of the protective cover 4. Since the diameter of the installation opening 41 is smaller than the outer diameter of the mounting plate 12, the ignition burner body 2 cannot continue to move downward relative to the protective cover 4 at this time, thus achieving the connection between the two. More specifically, a recessed groove is provided around the installation port 41 inside the protective cover 4. At this time, the bottom surface inside the protective cover 4 and the top surface of the recessed groove are on the same plane. After the ignition burner body 2 and the protective cover 4 are installed, the mounting plate 12 of the ignition burner body 2 is located in the recessed groove, the top surface of the ignition burner body 2 is close to the top surface of the recessed groove, and the bottom surface of the ignition burner mounting plate 12 is in contact with the bottom surface of the recessed groove.

[0039] Specifically, the bottom of the protective cover 4 is provided with multiple retaining plates 42, which are arranged at intervals along the circumference of the protective cover 4. The distance between two adjacent retaining plates 42 forms the drainage channel 44. A retaining block 43 is provided at the bottom end of the retaining plate 42 near the center of the protective cover 4. When the protective cover 4 is inserted into the mounting hole 20, the side of the retaining block 43 away from the center of the protective cover 4 contacts the inner wall of the mounting hole 20. The multiple retaining blocks 43 form the insertion part between the protective cover 4 and the mounting hole 20.

[0040] Specifically, the sensing ends of the ignition needle 7 and the flameout protection needle 8 are both located inside the protective cover 4, and the sensing end of the flameout protection needle 8 is ring-shaped.

[0041] Specifically, a fixing plate 17 is fixed to the bottom end of the burner body 1 on one side of the mounting hole 20. The end of the fixing plate 17 away from the burner body 1 extends towards the center of the mounting hole 20 and is fixedly connected to the gas pipe 3. The fixing plate 17 ensures that the gas pipe 3 is located at the center of the mounting hole 20 and that the gas pipe 3 does not contact the mounting hole 20. More specifically, the fixing plate 17 and the gas pipe 3 can be fixed by welding.

[0042] Specifically, there is at least one drain outlet 9, which is located near the mounting hole 20.

[0043] Specifically, the fixing plate 17 is provided with a threaded hole, and a tightening bolt 11 is threadedly connected to the threaded hole. By tightening the tightening bolt, one end of the tightening bolt is pressed against the body of the ignition burner 2, and the position of the ignition burner body 2 is fixed. When it is necessary to disassemble the ignition burner body 2, the tightening bolt is loosened so that it is no longer pressed against the ignition burner body 2.

[0044] More specifically, the following method can be used to prevent the ignition burner body 2 from rotating: The mounting hole 20 located at the bottom of the burner head body 1 is designated as a fixing hole. This fixing hole is non-circular, and the bottom cross-sectional shape of the ignition burner body 2 matches the shape of the fixing hole, with the bottom of the ignition burner body 2 located within the fixing hole. The matching of the non-circular fixing hole with the bottom cross-sectional shape of the ignition burner body 2 prevents rotation and improves the stability of the ignition burner body 2. More specifically, the non-circular shape can be a combination of an arc segment and a straight line segment, a polygon, or a triangle.

[0045] Specifically, a drain pipe 10 is fixed inside the mounting hole 20. The drain pipe 10 is coaxial with the mounting hole 20, and the outer wall of the drain pipe 10 is in contact with the inner wall of the mounting hole 20. The top end of the drain pipe 10 extends into the combustion chamber 14. The bottom of the protective cover 4 is inserted into the drain pipe 10. The bottom end of the drain pipe 10 extends into the connecting chamber 13 and is connected to the bottom wall of the burner body 1. The drain pipe 10 guides drainage and can provide a certain degree of protection for the ignition burner body 2.

[0046] The drain pipe 10 has an outwardly flared opening at its top, and the connection between the opening and the drain pipe 10 is a rounded transition edge, which facilitates the entry of oil and water into the drain pipe 10. The drain pipe 10, located within the connecting chamber 13, has an air supply hole 21, through which a small amount of air is supplied to the drain pipe 10 to provide a cooling effect. There is at least one air supply hole 21. More specifically, the retaining block 43 at the bottom of the protective cover 4 is inserted into the top of the drain pipe 10, with the side of the retaining block 43 furthest from the center of the protective cover 4 contacting the inner wall of the drain pipe 10, and the top of the drain pipe 10 contacting the bottom wall of the retaining plate 42. More specifically, the drain outlet 9 is partially located inside the drain pipe 10 and communicates with the interior of the drain pipe 10 to facilitate the discharge of oil and water from the drain pipe 10.

[0047] Specifically, the mounting hole 20, protective cover 4, ignition burner body 2, and gas pipeline 3 are all located at the center of the burner head body 1. This ensures that the ignition burner serves as the central flame source, guaranteeing flame stability.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Ignition burner for a gas burner, comprising an ignition burner mounted in a burner body (1) provided with a combustion chamber (14) at the top, characterized in that: The ignition burner includes an ignition burner body (2) and a gas pipe (3). The bottom of the burner body (1) is provided with a connecting chamber (13). The bottom of the burner body (1) is provided with a drain outlet (9) that communicates with the connecting chamber (13). The burner body (1) is provided with an installation hole (20) that penetrates the burner body (1) along the axial direction. The gas pipe (3) is fixed in the installation hole (20). The ignition burner body (2) is inserted into the installation hole (20) and sleeved outside the gas pipe (3). There is a gap between the ignition burner body (2) and the inner wall of the installation hole (20). The ignition burner body (2) is provided with two fire needle installation holes (18) that penetrate the ignition burner body (2) along the axial direction. An ignition needle (7) and a flameout protection needle (8) are respectively inserted into the two fire needle installation holes (18). The combustion chamber (14) is provided with a protective cover (4). The top of the ignition burner body (2) is located inside the protective cover (4). The protective cover (4) has multiple openings (5) around its perimeter. The bottom of the protective cover (4) is inserted into the mounting hole (20). The bottom perimeter of the protective cover (4) has multiple drainage channels (44) that communicate with the mounting hole (20).

2. An ignition burner for a gas burner as claimed in claim 1, characterized in that: The top of the ignition burner body (2) is provided with a mounting plate (12), the outer diameter of which is larger than the outer diameter of the ignition burner body (2). The bottom of the protective cover (4) is provided with an installation port (41), the diameter of which is not less than the outer diameter of the ignition burner body (2) and smaller than the outer diameter of the mounting plate (12).

3. The ignition burner for a gas stove head according to claim 2, characterized in that: The protective cover (4) has an opening at the top, and a cover plate (6) covering the opening is inserted at the top of the protective cover (4).

4. Ignition burner for a gas burner according to claim 1 or 2 or 3, characterized in that: The bottom of the protective cover (4) is provided with multiple card plates (42), and the multiple card plates (42) are arranged at intervals along the circumference of the protective cover (4). The distance between two adjacent card plates (42) is the drainage channel (44). The bottom of the card plate (42) is provided with a card block (43) near the center of the protective cover (4). When the protective cover (4) is inserted into the mounting hole (20), the side of the card block (43) away from the center of the protective cover (4) contacts the inner wall of the mounting hole (20).

5. An ignition burner for a gas burner as claimed in claim 1, characterized in that: The sensing ends of the ignition needle (7) and the flameout protection needle (8) are both located inside the protective cover (4), and the sensing end of the flameout protection needle (8) is ring-shaped.

6. An ignition burner for a gas burner as claimed in claim 1, characterized in that: The bottom end of the burner body (1) is fixed with a fixing plate (17) on one side of the mounting hole (20). The fixing plate (17) extends from the end away from the burner body (1) toward the center of the mounting hole (20) and is fixedly connected to the gas pipe (3).

7. An ignition burner for a gas burner as claimed in claim 1, characterized in that: There is at least one drain outlet (9), which is located near the mounting hole (20).

8. An ignition burner for a gas burner as claimed in claim 6, characterized in that: The fixing plate (17) is provided with a threaded hole, and a tightening bolt (11) is threadedly connected to the threaded hole.

9. An ignition burner for a gas burner as claimed in claim 1, characterized in that: A drain pipe (10) is fixed in the mounting hole (20). The drain pipe (10) is coaxial with the mounting hole (20). The top end of the drain pipe (10) extends into the combustion chamber (14). The bottom of the protective cover (4) is inserted into the drain pipe (10). The bottom end of the drain pipe (10) extends into the connecting chamber (13) and is connected to the bottom wall of the burner body (1). The drain pipe (10) has an outwardly flared opening at the top, and the connection between the opening and the drain pipe (10) is a rounded transition edge. The drain pipe (10) has an air supply hole (21) on the pipe body located in the connecting chamber (13).

10. An ignition burner for a gas burner as claimed in claim 1, characterized in that: The mounting hole (20), protective cover (4), ignition burner body (2) and gas pipeline (3) are all located at the center of the burner body (1).

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