Ignition needle structure convenient to maintain

Abstract

The utility model relates to the field of combustion equipment accessories, and discloses an ignition needle structure convenient to maintain. The device comprises a mounting plate, a first ceramic column, a second ceramic column and a main needle, the first ceramic column is connected with the mounting plate in an inserted mode, the mounting plate is suitable for being fixedly connected with the bottom of a gas stove panel, the first ceramic column does not protrude out of the gas stove panel, the main needle is fixedly connected with the second ceramic column, and the second ceramic column is connected with the first ceramic column in an inserted mode. And the first ceramic column is connected with the second ceramic column in a magnetic attraction mode, and the second ceramic column and the main needle both protrude out of the gas stove panel. According to the utility model, the convenience of cleaning and maintaining the ignition needle is improved; and the use stability is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of combustion equipment accessories, and more specifically, to an ignition needle structure that is easy to maintain. Background Technology

[0002] An ignition needle is installed on a gas stove for ignition. Some ignition needles consist of a mounting plate, a ceramic sleeve, a main needle, and a welding needle. The welding needle typically serves as the mounting base or conductive connection component for the main needle, and is fixed to the mounting plate by welding. In some designs, the welding needle also functions as a grounding circuit (such as in a dual-needle system, assisting the main needle in discharging). The main needle is inserted and fixed inside the ceramic sleeve, with its top protruding from the sleeve and bending towards the welding needle. The main needle is electrically connected to the pulse igniter to generate a spark through discharge at its tip. The mounting plate is fitted onto and connected to the ceramic sleeve to form a module that is fixedly installed on the gas stove panel.

[0003] If oil, tar, or carbonized deposits accumulate on the surface of the ceramic sleeve and main needle during use, it can lead to delayed ignition or failure to ignite. Therefore, regular cleaning and maintenance of the ceramic sleeve and main needle are necessary. However, both the ceramic sleeve and main needle are fixedly connected to the gas stove via a mounting plate and are not easily disassembled. Furthermore, to improve the ignition effect of the ignition needle, the existing ceramic sleeve is relatively close to the inner burner cap in the center of the gas stove burner head, making it difficult to clean and maintain the side of the ceramic sleeve closest to the inner burner cap. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides an easy-to-maintain ignition needle structure, comprising a mounting plate, a first ceramic column, a second ceramic column, and a main needle. The first ceramic column is plugged into the mounting plate, which is adapted to be fixedly connected to the bottom of a gas stove panel. The first ceramic column does not protrude from the gas stove panel. The main needle is fixedly connected to the second ceramic column, and the second ceramic column is plugged into the first ceramic column. The first and second ceramic columns are magnetically connected. Both the second ceramic column and the main needle protrude from the gas stove panel.

[0005] Optionally, a through hole is provided on one side of the mounting plate, the through hole penetrates the mounting plate, the first ceramic post is inserted into the through hole, one end of the first ceramic post is fixed with a flange, the outer diameter of the flange is larger than the diameter of the through hole, the outer peripheral wall of the first ceramic post is provided with an annular groove, the annular groove and the flange are respectively located on both sides of the mounting plate, and a retaining spring is provided in the annular groove, the outer diameter of the retaining spring is larger than the outer diameter of the through hole.

[0006] Optionally, a positioning protrusion is fixedly provided on the side of the mounting plate near the flange, and a positioning insertion hole is provided on the flange, and the positioning protrusion is inserted into the positioning insertion hole.

[0007] Optionally, a docking groove is formed on the side of the first ceramic column near the second ceramic column, and a docking post is fixed on the side of the second ceramic column near the first ceramic column. The docking post is inserted into the docking groove. A first magnetic ring is fixedly provided at the bottom of the docking groove, and a second magnetic ring is fixedly provided on the side of the docking post near the bottom of the docking groove. The first magnetic ring and the second magnetic ring attract each other.

[0008] Optionally, the outer wall of the docking post is fixed with a locking protrusion, and the groove wall of the docking groove is provided with a locking groove. The locking groove is L-shaped, and the locking protrusion is adapted to be inserted into the locking groove and is limited after rotation.

[0009] Optionally, the bottom of the docking groove is provided with an assembly groove, the assembly groove passes through the first ceramic column, an electrode plate is inserted in the assembly groove, the main pin is connected to the second ceramic column, and one end of the main pin is inserted in the assembly groove and electrically connected to the electrode plate.

[0010] Optionally, a conductive post is fixedly connected to the side of the electrode plate near the main needle, and a conductive slot is provided on the side of the conductive post near the main needle. The main needle is adapted to be inserted into the conductive slot and to contact the conductive post.

[0011] Optionally, the conductive slot is provided with a conductive spring on its wall, and both the conductive post and the main pin are in contact with the conductive spring.

[0012] Optionally, the end of the main needle away from the first ceramic post is provided with a tapered tip, and the end of the main needle away from the first ceramic post is bent outward toward the first ceramic post.

[0013] Optionally, a welding pin is welded to the mounting plate, the welding pin is located on one side of the first ceramic column, and the side of the welding pin away from the mounting plate is bent towards the tip of the cone.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] 1. The first ceramic column does not protrude from the gas stove panel, so only the second ceramic column and the main needle need to be cleaned and maintained. The second ceramic column and the first ceramic column are magnetically connected after being inserted. During cleaning and maintenance, the second ceramic column can be pulled out for wiping and cleaning, which improves the convenience of cleaning and maintaining the ignition needle.

[0016] 2. The locking protrusion and locking groove can limit the axial pull-out of the second ceramic column. Without rotating the second ceramic column to unlock it, the second ceramic column cannot be easily pulled out. At the same time, the first magnetic ring and the second magnetic ring attract each other and limit the circumferential rotation of the second ceramic column, which improves the stability during use.

[0017] 3. The electrode plate can be electrically connected to the pulse igniter through wires, and the main needle is electrically connected to the electrode plate through the conductive post. Since the second ceramic post needs to be rotated for both disassembly and installation, the conductive slot allows the main needle to rotate synchronously when the second ceramic post is rotated. The conductive spring can drive the main needle and the conductive post to keep in contact and conduct electricity, thereby improving the stability of the electrical connection between the second ceramic post and the electrode plate after insertion. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the ignition needle in an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the ignition needle in an embodiment of this utility model;

[0020] Figure 3 This is an exploded view of the ignition needle in an embodiment of this utility model;

[0021] Figure 4 This is a structural diagram of the first ceramic column in an embodiment of this utility model;

[0022] Figure 5 This is a structural diagram of the second ceramic column in an embodiment of this utility model;

[0023] Figure 6 This is a partial enlarged view of an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 11. Through hole; 12. Positioning protrusion; 13. Welding pin; 2. First ceramic post; 21. Flanged edge; 22. Ring groove; 23. Snap ring; 24. Positioning insertion hole; 25. Butt groove; 251. Locking groove; 252. Assembly groove; 26. First magnetic ring; 27. Electrode plate; 28. Conductive post; 281. Conductive slot; 29. ​​Conductive spring; 3. Second ceramic post; 31. Butt post; 32. Second magnetic ring; 33. Locking protrusion; 4. Main pin. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-6 This application will be described in further detail.

[0026] This utility model embodiment provides an ignition needle structure that is easy to maintain, referring to... Figure 1 and Figure 2The easy-to-maintain ignition needle structure includes a mounting plate 1, a first ceramic post 2, a second ceramic post 3, and a main needle 4. The first ceramic post 2 is plugged into the mounting plate 1, which is suitable for fixing to the bottom of the gas stove panel with bolts. The first ceramic post 2 does not protrude from the gas stove panel. The main needle 4 is fixedly connected to the second ceramic post 3, which is plugged into the first ceramic post 2. The first ceramic post 2 and the second ceramic post 3 are magnetically connected. Both the second ceramic post 3 and the main needle 4 protrude from the gas stove panel. Because the first ceramic post 2 does not protrude from the gas stove panel, cleaning and maintenance only require removing the second ceramic post 3 and the main needle 4 for cleaning.

[0027] Reference Figure 2 and Figure 3 A through hole 11 is provided on one side of the mounting plate 1, through which the mounting plate 1 passes. The first ceramic post 2 is inserted into the through hole 11, and both ends of the first ceramic post 2 protrude from the through hole 11. The end of the first ceramic post 2 near the second ceramic post 3 is integrally formed with a flange 21, the outer diameter of which is larger than the diameter of the through hole 11. The outer peripheral wall of the first ceramic post 2 is provided with an annular groove 22, which is located on both sides of the mounting plate 1, and a retaining spring 23 is installed in the annular groove 22. The outer diameter of the retaining spring 23 is larger than the outer diameter of the through hole 11, so that the mounting plate 1 is connected to the first ceramic post 2.

[0028] Combination Figure 2 Reference Figure 3 and Figure 4 The mounting plate 1 has a positioning protrusion 12 integrally formed on the side near the flange 21. The flange 21 has a positioning insertion hole 24. The positioning protrusion 12 is inserted into the positioning insertion hole 24 to limit the circumferential rotation of the first ceramic column 2. During use, the first ceramic column 2 is less likely to rotate relative to each other, which would affect ignition.

[0029] Reference Figures 2 to 5 The first ceramic pillar 2 has a mating groove 25 on one side where the flange 21 is located. The second ceramic pillar 3 has a mating post 31 integrally formed on the side near the first ceramic pillar 2, and the mating post 31 is inserted into the mating groove 25. A first magnetic ring 26 is fixed to the bottom of the mating groove 25 with strong adhesive; a second magnetic ring 32 is fixed to the side of the mating post 31 near the bottom of the mating groove 25 with strong adhesive. The first magnetic ring 26 and the second magnetic ring 32 attract each other, so that the first ceramic pillar 2 and the second ceramic pillar 3 are magnetically connected after insertion. In addition, after the first magnetic ring 26 and the second magnetic ring 32 attract each other, they provide resistance to the circumferential rotation of the second ceramic pillar 3, limiting the circumferential rotation of the second ceramic pillar 3 and making it difficult to rotate; at the same time, it also makes it difficult for the second ceramic pillar 3 to be pulled out of the mating groove 25.

[0030] Reference Figure 4 and Figure 5The outer wall of the mating post 31 is integrally formed with a locking protrusion 33, and the groove wall of the mating groove 25 is provided with an L-shaped locking groove 251. The locking protrusion 33 is suitable for insertion into the locking groove 251, and after rotation, it is limited to the locking groove 251, making it difficult for the mating post 31 to be pulled out of the mating groove 25. Specifically, the locking groove 251 includes an insertion groove and a limiting groove. The insertion groove extends along the opening direction of the mating groove 25, and the limiting groove is located at the end of the insertion groove near the bottom of the mating groove 25, and the limiting groove extends circumferentially along the mating groove 25. During installation, the locking protrusion 33 moves before the insertion groove, and then drives the second ceramic post 3 to rotate relative to the first ceramic post 2, so that the locking protrusion 33 rotates into the limiting groove, thereby limiting the pull-out of the mating post 31.

[0031] Reference Figures 1 to 3 The main needle 4 is interference-fitted to the second ceramic post 3, with both ends of the main needle 4 protruding from the second ceramic post 3. An assembly groove 252 is formed at the bottom of the mating groove 25, penetrating the first ceramic post 2. An electrode plate 27 is inserted into the assembly groove 252. The width of the electrode plate 27 is greater than the diameter of the assembly groove 252. Therefore, two elongated grooves are symmetrically formed on the wall of the assembly groove 252. The end of the elongated groove facing away from the second ceramic post 3 penetrates the first ceramic post 2 to facilitate the insertion and installation of the electrode plate 27. After the electrode plate 27 is installed, the openings of the two elongated grooves away from the mating groove 25 are filled with fixing adhesive, thus preventing the electrode plate 27 from falling out. The electrode plate 27 can be electrically connected to the pulse igniter through a wire. One end of the main needle 4 is inserted into the assembly groove 252 and electrically connected to the electrode plate 27, allowing the main needle 4 to discharge under the action of the pulse igniter.

[0032] Reference Figures 2 to 6 A conductive post 28 is welded to the side of the electrode plate 27 near the main needle 4. A conductive slot 281 is provided on the side of the conductive post 28 near the main needle 4. The main needle 4 is adapted to be inserted into the conductive slot 281 and to contact the conductive post 28. Since the second ceramic post 3 needs to be rotated for both disassembly and installation, the conductive slot 281 allows the main needle 4 to rotate smoothly and synchronously when the second ceramic post 3 is rotated.

[0033] A mounting groove is formed on the wall of the conductive slot 281, and the conductive post 28 passes through the side of the mounting groove near the second ceramic post 3. A conductive spring 29 is inserted into the mounting groove. The conductive spring 29 is a V-shaped spring, with one side of the conductive spring 29 interference-fitted into the mounting groove, and the other side located in the conductive slot 281 and abutting against the outer wall of the main pin 4. The conductive spring 29 can drive the main pin 4 and the conductive post 28 to maintain contact and conduct electricity, improving the stability of the electrical connection between the second ceramic post 3 and the electrode plate 27 after insertion.

[0034] Reference Figure 1The main needle 4 has a bent section on the side away from the first ceramic column 2, which is suitable for generating an electric spark through discharge. The bent section of the main needle 4 bends outwards away from the first ceramic column 2, bringing the end of the bent section closer to the inner burner cap at the center of the furnace head. This also increases the distance between the second ceramic column 3 and the inner burner cap at the center of the furnace head, facilitating cleaning and maintenance without removing the second ceramic column 3. The end of the bent section has a conical tip, which can accumulate more charge to form a high charge density area, enabling rapid generation of an electric spark for ignition through the principle of tip discharge.

[0035] Welding pins 13 are welded onto the mounting plate 1, and welding pins 13 serve as grounding circuits. Welding pins 13 and the second ceramic posts 3 are arranged at intervals. Since the main pin 4 has a bent section, welding pin 13 also has a bent section to ensure the cooperation between the main pin 4 and welding pin 13. The bent section of welding pin 13 is parallel to the bent section of the main pin 4. The end of the bent section of welding pin 13 away from the mounting plate 1 is also bent into an extension section. The extension section bends and extends towards the cone tip of the main pin 4 to cooperate with the main pin 4 and assist the main pin 4 in completing the discharge.

[0036] The implementation principle of the easy-to-maintain ignition needle structure in this application embodiment is as follows: the first ceramic column 2 does not protrude from the gas stove panel, so only the second ceramic column 3 and the main needle 4 need to be cleaned and maintained. The second ceramic column 3 and the first ceramic column 2 are magnetically connected after insertion. During cleaning and maintenance, the second ceramic column 3 can be pulled out for wiping. The locking protrusion 33, after engaging with the locking groove 251, can limit the axial pull-out of the second ceramic column 3, preventing it from being easily pulled out without rotating it to unlock. Simultaneously, the first magnetic ring 26 and the second magnetic ring 32 attract each other, limiting the circumferential rotation of the second ceramic column 3, making the ignition needle more stable during use. Electrode 27 can be electrically connected to the pulse igniter through wires, and main needle 4 is electrically connected to electrode 27 through conductive post 28. Since the second ceramic post 3 needs to be rotated for both disassembly and installation, conductive slot 281 allows main needle 4 to rotate synchronously when the second ceramic post 3 is rotated. Conductive spring 29 can drive main needle 4 and conductive post 28 to maintain contact and conduct electricity, thereby improving the stability of the electrical connection between the second ceramic post 3 and electrode 27 after insertion.

[0037] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0038] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0041] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. An easy-to-maintain ignition needle structure, characterized in that: The device includes a mounting plate (1), a first ceramic column (2), a second ceramic column (3), and a main pin (4). The first ceramic column (2) is plugged into the mounting plate (1), which is adapted to be fixedly connected to the bottom of the gas stove panel. The first ceramic column (2) does not protrude from the gas stove panel. The main pin (4) is fixedly connected to the second ceramic column (3), and the second ceramic column (3) is plugged into the first ceramic column (2). The first ceramic column (2) and the second ceramic column (3) are magnetically connected. Both the second ceramic column (3) and the main pin (4) protrude from the gas stove panel.

2. The easy-to-maintain ignition needle structure according to claim 1, characterized in that: The mounting plate (1) has a through hole (11) on one side, through the mounting plate (1), and the first ceramic post (2) is inserted into the through hole (11). One end of the first ceramic post (2) is fixed with a flange (21), the outer diameter of the flange (21) is larger than the diameter of the through hole (11). The outer peripheral wall of the first ceramic post (2) is provided with an annular groove (22), the annular groove (22) and the flange (21) are respectively located on both sides of the mounting plate (1). A retaining spring (23) is provided in the annular groove (22), the outer diameter of the retaining spring (23) is larger than the outer diameter of the through hole (11).

3. The easy-to-maintain ignition needle structure according to claim 2, characterized in that: The mounting plate (1) is fixedly provided with a positioning protrusion (12) on the side near the flange (21), and a positioning insertion hole (24) is provided on the flange (21), and the positioning protrusion (12) is inserted into the positioning insertion hole (24).

4. The easy-to-maintain ignition needle structure according to claim 1, characterized in that: The first ceramic column (2) has a docking groove (25) on the side near the second ceramic column (3), and the second ceramic column (3) has a docking column (31) fixed on the side near the first ceramic column (2). The docking column (31) is inserted into the docking groove (25). A first magnetic ring (26) is fixed at the bottom of the docking groove (25), and a second magnetic ring (32) is fixed on the side of the docking column (31) near the bottom of the docking groove (25). The first magnetic ring (26) and the second magnetic ring (32) attract each other.

5. The easy-to-maintain ignition needle structure according to claim 4, characterized in that: The outer wall of the docking post (31) is fixed with a locking protrusion (33), and the groove wall of the docking groove (25) is provided with a locking groove (251). The locking groove (251) is L-shaped, and the locking protrusion (33) is suitable for being inserted into the locking groove (251) and is limited after rotation.

6. The easy-to-maintain ignition needle structure according to claim 4, characterized in that: The bottom of the docking groove (25) is provided with an assembly groove (252), the assembly groove (252) passes through the first ceramic column (2), an electrode plate (27) is inserted in the assembly groove (252), the main pin (4) is connected to the second ceramic column (3), and one end of the main pin (4) is inserted in the assembly groove (252) and electrically connected to the electrode plate (27).

7. The easy-to-maintain ignition needle structure according to claim 6, characterized in that: The electrode plate (27) is fixedly connected to a conductive post (28) on the side near the main needle (4). The conductive post (28) has a conductive slot (281) on the side near the main needle (4). The main needle (4) is adapted to be inserted into the conductive slot (281) and contact the conductive post (28).

8. The easy-to-maintain ignition needle structure according to claim 7, characterized in that: The conductive slot (281) has a conductive spring (29) on its groove wall, and the conductive post (28) and the main pin (4) are in contact with the conductive spring (29).

9. The easy-to-maintain ignition needle structure according to claim 1, characterized in that: The main needle (4) has a tapered tip at one end away from the first ceramic column (2), and the end of the main needle (4) away from the first ceramic column (2) bends outward toward the first ceramic column (2).

10. The easy-to-maintain ignition needle structure according to claim 9, characterized in that: Welding pins (13) are welded onto the mounting plate (1). The welding pins (13) are located on one side of the first ceramic column (2). The side of the welding pins (13) away from the mounting plate (1) is bent toward the tip of the cone.

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