Mounting structure and ignition needle

Abstract

The utility model relates to the field of combustion equipment accessories, and discloses a mounting structure and an ignition needle. The utility model relates to a ceramic plate which comprises a substrate and a ceramic column, the substrate is provided with a mounting hole, the mounting hole penetrates through the substrate, the ceramic column is inserted into the mounting hole, the two ends of the ceramic column are located on the two sides of the substrate respectively, the hole wall of the mounting hole is provided with a convex tongue, and the outer wall of the ceramic column is provided with an inverted-L-shaped locking groove. The locking groove is suitable for allowing the convex tongue to be inserted and limiting axial rotation of the ceramic column after rotation, a limiting baffle is arranged on the base plate, the limiting baffle is suitable for being inserted into the locking groove to limit circumferential reset of the ceramic column, and the limiting baffle is connected with the base plate through a bolt. According to the utility model, the assembly is simple and rapid, and the maintenance can be realized only by dismounting the bolts for fixing the limiting baffle, so that the maintenance and dismounting are convenient; the limiting stability during circumferential rotation resetting of the ceramic column is improved; and the welding convenience of the welding needle is improved.

Description

Technical Field

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

[0002] Ignition needles are commonly used in gas stoves and work in conjunction with pulse igniters to achieve ignition. Some ignition needles consist of a mounting plate, a ceramic sleeve, a main needle, and a welding pin. The welding pin 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 pin 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 pin. The main needle is electrically connected to the pulse igniter, causing its tip to discharge and generate a spark. The mounting plate is fitted onto and connected to the ceramic sleeve to form a module for installation on the gas stove.

[0003] The outer wall of the ceramic sleeve is integrally formed with a ceramic ring edge, and a ring groove is also formed on the outer wall of the ceramic sleeve. The ring groove is located below the ceramic ring edge and spaced apart from it. The ring groove and the ceramic ring edge are located on both sides of the mounting plate. A retaining spring is installed in the ring groove, and the retaining spring cooperates with the ceramic ring edge to clamp the mounting plate for installation. However, the circumferential rotation of the ceramic sleeve is not limited, and the ceramic sleeve will rotate relative to the mounting plate. This causes the distance between the main pin and the welding pin to change after bending, affecting the use.

[0004] In related technologies, during production and assembly, an additional layer of high-temperature resistant adhesive is applied to the side where the ceramic ring is located. After the high-temperature adhesive solidifies, it limits the circumferential rotation of the ceramic sleeve. This makes the entire production and assembly process cumbersome and time-consuming, and also makes disassembly inconvenient when the main pin is damaged and repaired. Utility Model Content

[0005] To address at least one of the aforementioned problems, this utility model first provides an installation structure, including a base plate and a ceramic pillar. The base plate has an installation hole that penetrates the base plate. The ceramic pillar is inserted into the installation hole, with its two ends located on opposite sides of the base plate. The wall of the installation hole has a protruding tongue, and the outer wall of the ceramic pillar has an L-shaped locking groove. The locking groove is adapted for the insertion of the protruding tongue and, upon rotation, limits the axial rotation of the ceramic pillar. The base plate has a limiting baffle, which is adapted to be inserted into the locking groove to limit the circumferential repositioning of the ceramic pillar. The limiting baffle is connected to the base plate by bolts.

[0006] Optionally, the locking groove includes a vertical insertion groove and a horizontal locking groove. The vertical insertion groove extends along the axial direction of the ceramic column, and the horizontal locking groove extends along the circumferential direction of the ceramic column. One end of the horizontal locking groove is connected to the vertical insertion groove. When the tongue is located in the horizontal locking groove, the axial movement of the ceramic column is limited.

[0007] Optionally, one end of the limiting baffle is fixedly provided with a plugging protrusion. When the tongue is located in the locking horizontal groove, the plugging protrusion is inserted into the plugging vertical groove.

[0008] Optionally, the insertion protrusion has a bent abutment block. When the protrusion is located in the locking horizontal groove, one side of the abutment block abuts against the side wall of the protrusion near the insertion vertical groove, and the other side abuts against the groove wall of the insertion vertical groove on the side away from the locking horizontal groove.

[0009] Optionally, the mounting structure further includes a welding pin located on one side of the ceramic pillar and close to the outer wall of the substrate side.

[0010] Optionally, a connecting post is fixed to one end of the welding pin that is connected to the substrate, and the outer diameter of the connecting post is larger than the outer diameter of the welding pin.

[0011] Optionally, the substrate is provided with a positioning hole, and the end of the connecting post away from the welding pin is fixed with a plug-in post inserted into the positioning hole.

[0012] Optionally, one end of the ceramic column is provided with a insertion hole, and a main pin is inserted into the insertion hole. The main pin protrudes from the insertion hole and bends towards the welding pin.

[0013] Optionally, a polygonal post is welded to one end of the main pin near the bottom of the insertion hole, and a polygonal hole adapted to the polygonal post is opened at the bottom of the insertion hole, the polygonal hole penetrating the ceramic post.

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

[0015] 1. During assembly, the ceramic column is inserted into the mounting hole and the protrusion is inserted into the vertical slot. Then, the ceramic column is rotated so that the protrusion is inserted into the locking slot to limit the axial movement of the ceramic column. After that, the limiting baffle is installed on the base plate by bolts and the base plate is inserted into the vertical slot to limit the circumferential movement of the ceramic column. There is no need to apply high-temperature adhesive and wait for the adhesive to solidify. The assembly is simple and quick. During maintenance, only the bolts fixing the limiting baffle need to be removed. Maintenance and disassembly are convenient.

[0016] 2. When the tongue is located in the locking horizontal groove, the abutment block can be inserted into the side of the tongue and abut against the tongue. In addition, the insertion protrusion is inserted into the insertion vertical groove, forming a double limit, which is more stable and improves the stability of the limit when the ceramic column rotates and resets.

[0017] 3. The connecting post can increase the contact area between the welding pin and the substrate, and improve the stability after the welding pin is fixed to the substrate. In addition, the combination of the positioning hole and the plug post can enable the welding pin to be initially positioned and installed on the substrate, improving the convenience of subsequent welding.

[0018] 4. The polygonal post and polygonal hole design allows the main pin to bend more precisely toward the welding pin after installation, while also preventing the main pin from rotating relative to the ceramic post.

[0019] In addition, this utility model provides an ignition needle, including the mounting structure described above.

[0020] Compared with the prior art, the ignition needle of this utility model has the same advantages as the above-mentioned mounting structure compared with the prior art, and will not be repeated here. Attached Figure Description

[0021] Figure 1 The structure of the substrate, ceramic pillar, and welding pin in this embodiment of the utility model. Figure 1 ;

[0022] Figure 2 This is an exploded view of the substrate, ceramic pillar, and welding pin in an embodiment of this utility model.

[0023] Figure 3 This is an exploded view of the ceramic column and main needle in an embodiment of this utility model;

[0024] Figure 4 This is a partial enlarged view of an embodiment of the present utility model;

[0025] Figure 5 The structure of the substrate, ceramic pillar, and welding pin in this embodiment of the utility model. Figure 2 ;

[0026] Figure 6 This is a structural diagram of the limiting baffle in an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Mounting hole; 12. Protruding tongue; 13. Limiting baffle; 14. Insertion protrusion; 15. Abutment block; 16. Positioning insertion hole; 2. Ceramic post; 21. Locking groove; 22. Insertion vertical groove; 23. Locking horizontal groove; 24. Main pin; 25. Polygonal post; 3. Welding pin; 31. Connecting post; 32. Insertion post. Detailed Implementation

[0028] 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.

[0029] In a first aspect, this utility model embodiment provides an installation structure, referring to... Figure 1 and Figure 2 The mounting structure includes a substrate 1, a ceramic pillar 2, and a welding pin 3. The substrate 1 has a mounting hole 11 that penetrates the substrate 1. The ceramic pillar 2 is inserted into the mounting hole 11, with its two ends located on opposite sides of the substrate 1. A protruding tongue 12 is integrally formed on the wall of the mounting hole 11. The outer wall of the ceramic pillar 2 has an inverted L-shaped locking groove 21, which is suitable for the insertion of the protruding tongue 12 and for limiting the axial rotation of the ceramic pillar 2 after rotation. A limiting baffle 13 is bolted to one side of the substrate 1. The limiting baffle 13 is suitable for insertion into the locking groove 21 to limit the circumferential repositioning of the ceramic pillar 2. The welding pin 3 is located on one side of the ceramic pillar 2 and is welded to the substrate 1.

[0030] In this embodiment, the substrate 1 is preferably made of steel plate. Compared to setting the tab 12 on the ceramic column 2, setting the tab 12 on the substrate 1 makes it less prone to breakage, resulting in a relatively longer service life for the entire mounting structure. Two bolt holes are spaced apart on the substrate 1, allowing bolts to pass through them to mount the substrate 1 onto the gas stove during installation. The ceramic column 2 and the welding pin 3 are both located between the two bolt holes.

[0031] Reference Figure 2 and Figure 3 The locking groove 21 includes a vertical insertion groove 22 and a horizontal locking groove 23. One end of the vertical insertion groove 22 penetrates the ceramic post 2 to facilitate the insertion of the protruding tongue 12, and the other end of the vertical insertion groove 22 extends along the axial direction of the ceramic post 2 but does not penetrate the ceramic post 2. The horizontal locking groove 23 is located at the end of the vertical insertion groove 22 that does not penetrate the ceramic post 2, and the horizontal locking groove 23 extends circumferentially along the ceramic post 2, with one end of the horizontal locking groove 23 communicating with the vertical insertion groove 22.

[0032] Combination Figure 2 Reference Figure 3 and Figure 4 During assembly, when the ceramic pillar 2 is inserted into the mounting hole 11, the protruding tongue 12 is also positioned and inserted into the insertion vertical groove 22. Then, the ceramic pillar 2 is continuously pushed to move relative to the substrate 1, at which point the protruding tongue 12 moves directionally within the insertion vertical groove 22. When the protruding tongue 12 is located at one end of the insertion vertical groove 22 near the locking horizontal groove 23, it drives the ceramic pillar 2 to rotate relative to the substrate 1, causing the protruding tongue 12 to be positioned within the locking horizontal groove 23, thus limiting the axial movement of the ceramic pillar 2.

[0033] Reference Figures 3 to 6The limiting baffle 13 is located on the side of the base plate 1 away from the welding pin 3, and the end of the limiting baffle near the ceramic column 2 is integrally formed with a plugging protrusion 14. When the tongue 12 is located in the locking horizontal groove 23, the plugging protrusion 14 is located on the side below the tongue 12 and is inserted into the plugging vertical groove 22. At the same time, the two opposite outer walls of the plugging protrusion 14 abut against the groove walls on opposite sides of the plugging vertical groove 22 to limit the circumferential rotation of the ceramic column 2, thereby making it difficult for the ceramic column 2 to rotate and reset.

[0034] Additionally, the insertion protrusion 14 is bent into an abutment block 15 on the side near the substrate 1. When the tongue 12 is located within the locking transverse groove 23, the abutment block 15 can be inserted into the mounting hole 11, with one side of the abutment block 15 abutting against the side wall of the tongue 12 near the insertion vertical groove 22, and the other side abutting against the groove wall of the insertion vertical groove 22 on the side away from the locking transverse groove 23. The abutment block 15 and the insertion protrusion 14 form a double limiting structure for the rotational reset of the ceramic pillar 2, improving the stability of the rotational reset limiting of the ceramic pillar 2.

[0035] Reference Figure 2 and Figure 3 A insertion hole is provided at the top of the ceramic pillar 2 (i.e., the end where the ceramic pillar 2 and the welding pin 3 are located on the same side of the substrate 1). A main pin 24 is inserted into the insertion hole with an interference fit. The main pin 24 protrudes from the insertion hole and is bent toward the welding pin 3. The bent part of the main pin 24 is located above the welding pin 3, thereby enabling the welding pin 3 to better cooperate with the main pin 24 to assist the main pin 24 in completing the discharge.

[0036] A polygonal post 25 is welded to one end of the main pin 24 near the bottom of the insertion hole. The outer diameter of the polygonal post 25 is smaller than the outer diameter of the main pin 24. A polygonal hole adapted to the polygonal post 25 is opened at the bottom of the insertion hole. The polygonal hole passes through the ceramic post 2, thereby allowing the main pin 24 to bend more precisely towards the welding pin 3 after installation, and also preventing the main pin 24 from rotating relative to the ceramic post 2. The polygonal post 25 is made of conductive material and is suitable for connection to a pulse igniter via an electric wire to generate an electric spark for the main pin 24.

[0037] Reference Figure 2 and Figure 3The welding needle 3 is located near one side of the outer wall of the substrate 1, allowing the main needle 24 to bend closer to the gas outlet to ignite the gas. A connecting post 31 is integrally formed at the end of the welding needle 3 that connects to the substrate 1. The outer diameter of the connecting post 31 is larger than that of the welding needle 3, and the connecting post 31 will be welded to the substrate 1. This increases the contact area between the welding needle 3 and the substrate 1, improving the stability of the welding needle 3 after it is fixed to the substrate 1. Additionally, a plug-in post 32 is integrally formed at the end of the connecting post 31 that faces away from the welding needle 3. The outer diameter of the plug-in post 32 is smaller than that of the connecting post 31. A through-hole positioning hole 16 is provided on the substrate 1, allowing the plug-in post 32 to be inserted into the hole, thus initially positioning the welding needle 3 on the substrate 1 and improving the convenience of subsequent welding.

[0038] The implementation principle of the installation structure in this application embodiment is as follows: During assembly, when the ceramic pillar 2 is inserted into the mounting hole 11, the protruding tongue 12 is also positioned and inserted into the insertion vertical groove 22. Then, the ceramic pillar 2 is continuously pushed to move relative to the substrate 1, at which point the protruding tongue 12 moves directionally within the insertion vertical groove 22. When the protruding tongue 12 is located at one end of the insertion vertical groove 22 near the locking horizontal groove 23, it drives the ceramic pillar 2 to rotate relative to the substrate 1, causing the protruding tongue 12 to be positioned within the locking horizontal groove 23, thus limiting the axial movement of the ceramic pillar 2. Afterwards, the insertion protrusion 14 and the abutment block 15 are both inserted into the insertion vertical groove 22, and the limiting baffle 13 is fixed to the substrate 1 with bolts. Assembly is simple and quick.

[0039] When the main pin 24 is damaged and needs to be disassembled for repair, simply remove the bolts of the fixed limit baffle 13, then remove the limit baffle 13, and then rotate the ceramic column 2 to pull it off. It is not necessary to remove the entire substrate 1, making the repair relatively convenient.

[0040] Secondly, another embodiment of this utility model provides an ignition needle that adopts the installation structure of the first aspect, making the assembly, disassembly and maintenance of the ignition needle more convenient and faster, and also ensuring the stability after assembly.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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 installation structure, characterized in that: The system includes a substrate (1) and a ceramic pillar (2). The substrate (1) has a mounting hole (11) that penetrates the substrate (1). The ceramic pillar (2) is inserted into the mounting hole (11), and both ends of the ceramic pillar (2) are located on both sides of the substrate (1). The mounting hole (11) has a protruding tongue (12) on its wall. The outer wall of the ceramic pillar (2) has an inverted L-shaped locking groove (21). The locking groove (21) is adapted to allow the protruding tongue (12) to be inserted and rotated to limit the axial rotation of the ceramic pillar (2). The substrate (1) has a limiting baffle (13) that is adapted to be inserted into the locking groove (21) to limit the circumferential reset of the ceramic pillar (2). The limiting baffle (13) is connected to the substrate (1) by bolts.

2. The installation structure according to claim 1, characterized in that: The locking groove (21) includes a vertical insertion groove (22) and a horizontal locking groove (23). The vertical insertion groove (22) extends along the axial direction of the ceramic column (2), and the horizontal locking groove (23) extends circumferentially along the ceramic column (2). One end of the horizontal locking groove (23) is connected to the vertical insertion groove (22). When the tongue (12) is located in the horizontal locking groove (23), the axial movement of the ceramic column (2) is limited.

3. The installation structure according to claim 2, characterized in that: One end of the limiting baffle (13) is fixedly provided with a plug-in protrusion (14). When the tongue (12) is located in the locking horizontal groove (23), the plug-in protrusion (14) is inserted into the plug-in vertical groove (22).

4. The installation structure according to claim 3, characterized in that: The insertion protrusion (14) has a bent abutment block (15). When the tongue (12) is located in the locking horizontal groove (23), one side of the abutment block (15) abuts against the side wall of the tongue (12) near the insertion vertical groove (22), and the other side abuts against the groove wall of the insertion vertical groove (22) away from the locking horizontal groove (23).

5. The installation structure according to any one of claims 1-4, characterized in that: It also includes a welding pin (3), which is located on one side of the ceramic pillar (2) and close to the outer wall of the substrate (1).

6. The installation structure according to claim 5, characterized in that: A connecting post (31) is fixed at one end of the welding needle (3) that is connected to the substrate (1), and the outer diameter of the connecting post (31) is larger than the outer diameter of the welding needle (3).

7. The installation structure according to claim 6, characterized in that: The substrate (1) has a positioning hole (16), and the end of the connecting post (31) away from the welding pin (3) is fixed with a plug-in post (32) inserted into the positioning hole (16).

8. The installation structure according to claim 5, characterized in that: One end of the ceramic column (2) is provided with a plug hole, and a main pin (24) is inserted into the plug hole. The main pin (24) protrudes from the plug hole and bends toward the welding pin (3).

9. The installation structure according to claim 8, characterized in that: The main pin (24) has a polygonal post (25) welded to one end near the bottom of the insertion hole. The bottom of the insertion hole has a polygonal hole that matches the polygonal post (25), and the polygonal hole penetrates the ceramic post (2).

10. An ignition needle, characterized in that, Includes the mounting structure as described in any one of claims 1-9.

Images