Combustor ignition needle mounting structure

Abstract

The utility model relates to the field of combustors, in particular to a combustor ignition needle mounting structure which comprises a combustor base, and a through hole for an ignition needle to penetrate through is formed in the combustor base. The ignition needle is movably arranged in the through hole, and a limiting groove is formed in the side edge of the ignition needle; and the positioning piece is transversely arranged relative to the ignition needle, has deformation or movement capability and is matched with the limiting groove. By the adoption of the scheme, the ignition needle can be installed more flexibly and conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of combustor, especially to a combustor ignition needle mounting structure. BACKGROUND

[0002] When the combustor of the gas stove is working, the gas enters the stove from the air inlet pipe, enters the burner through the adjustment of the gas valve, and mixes with a part of air, the mixed gas is sprayed from the fire hole of the fire divider and ignited by the ignition device to form a flame, wherein the ignition device generally includes a micro switch controlled by a knob to supply power and an ignition needle to provide an electric spark.

[0003] However, the existing ignition needle is fixedly installed on the combustor base, and different lengths of ignition needles need to be matched for different models of combustors, so different molds need to be set up for production, and the manufacturing cost is high.

[0004] Therefore, the inventor has made further research and developed a combustor ignition needle mounting structure, which is produced. INVENTION CONTENTS

[0005] The utility model discloses a combustor ignition needle mounting structure, which is designed to adjust the installation position of the ignition needle in different models of combustors, so that the ignition needle can be produced in a standardized manner.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A combustor ignition needle mounting structure comprises

[0008] A combustor base is provided with a through hole for the ignition needle to pass through;

[0009] An ignition needle is movably arranged in the through hole, and a limiting groove is arranged on the side of the ignition needle;

[0010] A positioning member is arranged transversely relative to the ignition needle, and has a deformation or movement ability, and cooperates with the limiting groove.

[0011] The existing ignition needle fixedly arranged on the combustor base is movably arranged in the through hole, and is limited by the positioning member, and the positioning member is movably arranged and cooperates with the ignition needle, when the height of the ignition needle needs to be adjusted, the positioning member is moved, and after adjustment, the positioning member is fixed with the limiting groove of the ignition needle, so that the installation of the ignition needle is more flexible.

[0012] Further, the positioning member is a wave bead screw, and the steel ball of the wave bead screw matches the limiting groove of the ignition needle.

[0013] The wave ball screw comprises a steel ball, a spring and a shell body, and has the similar function to the return spring, but has higher stability and more accurate positioning.

[0014] Further, the wave ball screw is arranged in the transverse threaded hole of the burner base.

[0015] Further, the ignition needle side is provided with a plurality of annular limiting grooves, the limiting grooves are matched with the spring of the wave ball screw to compress the spring, and the steel ball on the wave ball screw is positioned at the limiting grooves to position the ignition needle.

[0016] Further, the upper portion of the ignition needle is provided with a convex step, and the maximum diameter of the step is greater than the diameter of the through hole.

[0017] The step can prevent the overflow water from flowing into the burner through the through hole of the ignition needle.

[0018] Further, the upper portion of the ignition needle is located above the upper surface of the burner base, and the wave ball screw is located below the lower surface of the burner base.

[0019] After the above scheme is adopted, compared with the prior art, the utility model has the following advantages:

[0020] The ignition needle in the scheme can adapt to the installation height of different burners, and when disassembled, the ignition needle can be directly pulled out from the upper portion, so that the installation and replacement of the ignition needle are simplified, and the production cost of different types of burners is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of an embodiment of the utility model;

[0022] Figure 2 is a schematic diagram of the separation of the ignition needle and the wave ball screw;

[0023] Figure 3 is a cross-sectional schematic diagram of the embodiment;

[0024] Figure 4 is a schematic diagram of the ignition needle;

[0025] Figure 5 is a schematic diagram of the wave ball screw;

[0026] REFERENCE SIGNS

[0027] The burner base 1, the through hole 11, the ignition needle 2, the limiting groove 21,

[0028] The wave ball screw 3, the steel ball 31, the spring 32 and the shell body 33. DETAILED DESCRIPTION

[0029] The utility model will be further described in combination with the drawings and specific embodiments.

[0030] As Figure 1 , 2 shown, a burner ignition needle mounting structure, comprising a burner base 1, which is provided with a cylindrical through hole 11, the cylindrical through hole 11 for setting the ignition needle 2; the burner base 1 below is provided with a transverse threaded hole, the threaded hole is provided with a wave bead screw 3; the through hole 11 and the threaded hole are communicated. Wherein, the upper part of the ignition needle 2 is a cone structure, the lower part is mainly a cylindrical structure, the upper part and the lower part are bounded by its ladder (also refer to Figure 4 ), that is, the diameter of the upper part is larger than the diameter of the through hole 11, and cannot enter the through hole 11; the lower part is provided with a plurality of annular limiting grooves 21. And the wave bead screw 3 includes a steel ball 31, a spring 32 and a shell 33 (refer to Figure 5 ), the steel ball 31 is pushed by the spring 32 arranged in the shell 33, and the spring 32 can be compressed by the steel ball 31, forming a buffer positioning member.

[0031] Because the through hole 11 and the threaded hole are communicated, the limiting groove 21 of the ignition needle 2 corresponds to the wave bead screw 3 in the threaded hole, that is, the steel ball 31 of the wave bead screw 3 can match the limiting groove 21 (refer to Figure 3 ); when the ignition needle 2 is subjected to upward or downward force, the thrust of the steel ball 31 to the limiting groove 21 is not enough to prevent the upward and downward movement of the ignition needle 2, so the steel ball 31 is pushed back and shrinks, and when the external force disappears, the steel ball 31 restores the limitation of the limiting groove 21 of the ignition needle 2.

[0032] The above is only a specific embodiment of the present application, and the words such as "up, down, left, right, middle" involved in the present application are only for reference, not absolute limitation, and any non-substantial change using the present application shall belong to the behavior of infringing the protection scope of the present application.

Claims

1. A burner igniter needle mounting structure characterized by: The application relates to a burner base, a firing needle and a positioning member. The burner base is provided with a through hole for the firing needle to pass through. The firing needle is movably arranged in the through hole, and the side of the firing needle is provided with a limiting groove. The positioning member is transversely arranged relative to the firing needle, has a deformation or movement ability, and is matched with the limiting groove.

2. A burner igniter needle mounting structure according to claim 1, characterized in that: The positioning member is a wave bead screw, and the steel ball of the wave bead screw is matched with the limiting groove of the firing needle.

3. A burner igniter needle mounting structure according to claim 2, wherein: The wave bead screw is arranged in a transverse screw hole of the burner base.

4. The burner igniter needle mounting structure of claim 2, wherein: The side of the firing needle is provided with a plurality of annular limiting grooves, the limiting grooves are matched with the spring of the wave bead screw of the burner base, the steel ball on the wave bead screw is pushed out at the limiting grooves to position the firing needle.

5. The burner igniter needle mounting structure of claim 1, wherein: The upper part of the firing needle is provided with a convex step, and the maximum diameter of the step is greater than the diameter of the through hole.

6. The burner igniter needle mounting structure of claim 2, wherein: The upper part of the firing needle is located above the upper surface of the burner base, and the wave bead screw is located below the lower surface of the burner base.

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