Ignition induction needle assembly, combustor and gas stove

Abstract

The utility model discloses an ignition induction needle assembly, a burner and a gas stove, the ignition induction assembly comprises a ceramic tube, an ignition needle and an induction needle, the ignition needle and the induction needle are connected with the ceramic tube, and the induction needle comprises a lower section body arranged in the ceramic tube and an induction section arranged outside the ceramic tube. The induction section comprises a vertical connecting part detachably connected with the upper end of the lower section body and an induction part connected with the upper end of the vertical connecting part. The induction needle is of a sectional structure, when the induction needle breaks down and needs to be replaced, only the upper induction section needs to be pulled out for replacement, and replacement is facilitated after the induction needle breaks down.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas stoves. Background Art

[0002] According to the national gas stove standards, gas stoves are required to have a fire-off protection function, so gas stoves have more than two needles, one ignition needle and one induction needle. Among them, the ignition needle is mainly used to discharge and conduct pulsed high-voltage current to the top of the ignition needle. The induction needle is mainly used to sense the temperature of the stove (whether it is burning).

[0003] In the prior art, the metal part of the induction needle is an integrated structure connected to the ceramic tube. Referring to the Chinese utility model patent with the authorization announcement number CN216790248U, a three-pin ignition induction assembly and a gas burner head are disclosed, wherein the three-pin ignition induction assembly includes a ceramic tube, an ignition needle and an induction needle that penetrate the ceramic tube from top to bottom. However, since the induction needle and the ceramic tube are fixed firmly, it is found during use that it is inconvenient to replace the induction needle after the induction needle fails. Utility Model Content

[0004] In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide an ignition sensor needle assembly, a burner and a gas stove, which are convenient for replacing the sensor needle after failure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] First, an ignition induction needle assembly is provided, including a ceramic tube and an ignition needle and an induction needle connected to the ceramic tube, the induction needle including a lower section body arranged in the ceramic tube and an induction section arranged outside the ceramic tube, the induction section including a connecting part detachably connected to the upper end of the lower section body and an induction part connected to the upper end of the connecting part.

[0007] Preferably, the connecting portion extends vertically downward and a connecting device is provided between the lower end and the upper end of the lower section body; and / or the sensing portion is spiral-shaped.

[0008] Preferably, the connecting device is a connecting sleeve, and the lower end of the connecting part is interference fit with the connecting sleeve.

[0009] Preferably, the connecting device is a threaded sleeve, and the lower end of the connecting part is threadedly connected to the threaded sleeve.

[0010] Preferably, the ceramic tube is provided with a sensing needle mounting hole for mounting the sensing needle, and the sensing needle mounting hole comprises a small diameter section connected to the lower section body and a large diameter section connected to the connecting device.

[0011] Preferably, the lower end of the connecting device abuts against the bottom wall of the large diameter section, and the upper end extends out of the large diameter section.

[0012] Preferably, a connecting hole is provided at the upper end of the lower section body, and the lower end of the connecting portion is interference fit or threadedly connected to the connecting hole.

[0013] Preferably, the lower section body is an alloy metal rod or an alloy metal tube; and / or, a screw is provided at the upper end of the lower section body and the screw extends out of the ceramic tube, the connecting portion is a connecting hole, the screw passes upward through the connecting hole and is connected to a locking nut.

[0014] Secondly, a burner is provided, wherein the burner is provided with the ignition sensing needle assembly.

[0015] In addition, a gas stove is also provided, and the gas stove is provided with the burner.

[0016] The technical solution adopted by the utility model is that the sensing needle is divided into two sections, namely, the lower section body and the sensing section. The lower section body is arranged inside the ceramic tube, and the sensing section is arranged outside the ceramic tube. The two are fixedly connected in a detachable manner. Therefore, when the sensing needle fails and needs to be replaced, only the upper sensing section needs to be pulled out and replaced, which is convenient for replacing the sensing needle after failure.

[0017] The specific technical solution adopted by the utility model and the beneficial effects brought about by it will be disclosed in detail in the following specific implementation manner in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0019] Figure 1 This is a schematic diagram of the exploded structure of the ignition induction assembly of the first embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the combined structure of the ignition induction assembly of the first embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional exploded structure of the ignition induction assembly of the first embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional combined structure of the ignition induction assembly of the first embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the ignition induction assembly of the second embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the combined structure of the ignition induction assembly of the second embodiment of the utility model;

[0025] In the figure: ceramic tube 1, small diameter section 101, large diameter section 102, sensing needle 11, lower section body 111, screw 1111, sensing section 112, connecting part 1121, sensing part 1122, connecting sleeve 113, locking nut 114, ignition needle 12. DETAILED DESCRIPTION

[0026] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0027] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0028] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] Embodiment 1

[0033] like Figures 1 to 4 As shown, the ignition induction needle assembly provided in this embodiment includes a ceramic tube 1 and an ignition needle 12 and an induction needle 11 connected to the ceramic tube 1. The induction needle 11 includes a lower section body 111 disposed in the ceramic tube 1 and an induction section 112 disposed outside the ceramic tube, and the induction section 112 includes a connecting portion 1121 detachably connected to the upper end of the lower section body and an induction portion 1122 connected to the upper end of the connecting portion. It can be understood that the induction section 112 is disposed outside the ceramic tube to facilitate the induction of flames, but it does not mean that all structures are disposed outside the ceramic tube, and the connecting portion 1121 detachably connected to the upper end of the lower section body is partially located inside the ceramic tube to facilitate connection with the upper end of the lower section body.

[0034] In the above technical solution, the sensing needle is divided into two parts, the lower body and the sensing section, wherein the lower body is arranged inside the ceramic tube, and the sensing section is arranged outside the ceramic tube, and the two are fixedly connected in a detachable manner. Therefore, when the sensing needle fails and needs to be replaced, it is only necessary to pull out the upper sensing section and replace it, which is convenient for replacing the sensing needle after failure.

[0035] In this embodiment, a connecting device is provided between the lower end of the connecting portion and the upper end of the lower section body, so as to realize a detachable connection between the lower section body 111 and the sensing section 112, wherein the connecting device has the function of facilitating assembly and disassembly.

[0036] In one embodiment, the connecting device is a connecting sleeve 113, and the lower end of the connecting part is interference fit with the connecting sleeve 113, so that the sensing section can be installed and removed by simple plugging and unplugging. The upper end of the lower section body can be welded to the connecting sleeve, and of course, the upper end of the lower section body can also be interference connected with the connecting sleeve.

[0037] In another embodiment, the connecting device is a threaded sleeve, and the lower end of the connecting portion is threadedly connected to the threaded sleeve. In this way, the sensing section can be installed and removed by a simple rotation. The upper end of the lower section body can be welded or interference fit with the threaded sleeve. Of course, the upper end of the lower section body can also be threadedly connected to the threaded sleeve.

[0038] In this embodiment, the sensing portion is in a spiral shape, but it is understandable that it can also be replaced by other shapes.

[0039] Specifically, the ceramic tube 1 is provided with a sensing needle installation hole for installing the sensing needle, and the sensing needle installation hole includes a small diameter section 101 connected to the lower section body and a large diameter section 102 connected to the connecting device, and the small diameter section 101 is connected to the large diameter section 102 to form a step structure. The lower end of the connecting device abuts against the bottom wall of the large diameter section, and the upper end extends out of the large diameter section.

[0040] It is understandable that other structures of the ignition sensor needle assembly can refer to the prior art. For example, the lower section body is an alloy metal rod or an alloy metal tube.

[0041] Embodiment 2

[0042] like Figure 5 and Figure 6 As shown, the difference from the first embodiment is that the upper end of the lower section body is provided with a screw 1111 and the screw extends out of the ceramic tube, the connecting portion is a connecting hole, the screw 1111 passes upward through the connecting hole and is connected with a locking nut 114. Among them, the induction section 112 is integrally formed by powder metallurgy.

[0043] In addition, for other structures not mentioned, reference may be made to the first embodiment.

[0044] Embodiment 3

[0045] The difference from the first embodiment is that the upper end of the lower body is provided with a connection hole, and the lower end of the connection part is interference fit or threadedly connected with the connection hole. In this way, there is no need to provide a connection device.

[0046] In addition, for other structures not mentioned, reference may be made to the first embodiment.

[0047] It is understandable that the connection portion 1121 and the sensing portion 1122 may also be detachably connected in other ways.

[0048] It can be understood that the ignition sensing needle assembly in the above embodiment can be applied to various existing burners as needed. Further, the burner equipped with the ignition sensing needle assembly in the above embodiment can be applied to various existing gas stoves as needed.

[0049] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. An ignition induction needle assembly, comprising a ceramic tube and an ignition needle and an induction needle connected to the ceramic tube, characterized in that: The sensing needle comprises a lower section body arranged in the ceramic tube and a sensing section arranged outside the ceramic tube, and the sensing section comprises a connecting portion detachably connected to the upper end of the lower section body and a sensing portion connected to the connecting portion.

2. An ignition sensor needle assembly according to claim 1, characterized in that: The connecting portion extends vertically downward and a connecting device is provided between the lower end and the upper end of the lower section body; and / or the sensing portion is spiral-shaped.

3. An ignition sensor needle assembly according to claim 2, characterized in that: The connecting device is a connecting sleeve, and the lower end of the connecting part is interference fit with the connecting sleeve.

4. An ignition sensor needle assembly according to claim 2, characterized in that: The connecting device is a threaded sleeve, and the lower end of the connecting part is threadedly connected to the threaded sleeve.

5. An ignition sensor needle assembly according to claim 2, characterized in that: The ceramic tube is provided with a sensing needle installation hole for installing the sensing needle, and the sensing needle installation hole includes a small diameter section connected to the lower section body and a large diameter section connected to the connecting device.

6. An ignition sensor needle assembly according to claim 5, characterized in that: The lower end of the connecting device abuts against the bottom wall of the large diameter section, and the upper end extends out of the large diameter section.

7. An ignition sensor needle assembly according to claim 1, characterized in that: The upper end of the lower section body is provided with a connecting hole, and the lower end of the connecting part is interference fit or threadedly connected with the connecting hole.

8. An ignition sensor needle assembly according to claim 1, characterized in that: The lower section body is an alloy metal rod or alloy metal tube; and / or, a screw is provided at the upper end of the lower section body and extends out of the ceramic tube, the connecting portion is a connecting hole, the screw passes upward through the connecting hole and is connected with a locking nut.

9. A burner, characterized in that: The burner is provided with an ignition sensing needle assembly according to any one of claims 1 to 8.

10. A gas stove, characterized in that: The gas stove is provided with the burner according to claim 9.

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