Ignition needle of commercial combustion appliance

Abstract

The utility model discloses an ignition needle of a commercial combustion appliance, which relates to the field of combustion appliances and comprises a combustor, an ignition core, a lock sleeve and an ignition device, the ignition core is arranged in the middle of the combustor, the lock sleeve is welded on the outer side of the combustor, an inserting groove is arranged on the lock sleeve, the inserting groove is designed into a 7-shaped structure, one end of the inserting groove is provided with the lock groove, and the other end of the inserting groove is provided with the ignition device. And an ignition device is arranged in the lock sleeve. The ignition needle head adopts the design of an annular structure, the fire detection area is increased, the success rate of ignition and fire detection is guaranteed, the double-layer design of the ceramic inner tube and the ceramic outer tube is adopted, the quality problem that ignition is directly carried out inside after the ignition needle head cracks due to the influence of extremely cold and extremely hot during combustion of the ignition core is avoided, and the service life of the ignition core is prolonged. The double-layer ceramic body design can effectively protect the inner tube from cracking after the outer tube is cracked, ignition can be continuously guaranteed not to be carried out inside as long as the inner tube is not cracked, the ignition needle is fixed with stainless steel, and the ignition needle is convenient to maintain and replace due to the fact that the double-layer ceramic body design is of a pull-plug structure.

Description

Technical Field:

[0001] The utility model relates to an ignition pin for commercial combustion appliances, belonging to the technical field of combustion appliances. Background Art:

[0002] Combustors generally use electric sparks to ignite combustible gases or liquids. In order to generate electric sparks, combustors generally use ignition pin devices. The ignition transformer delivers a relatively high voltage of 7 kV to 15 kV to the ignition pin. The relatively high voltage breaks down the air, generates sparks, releases energy, and ignites the combustible gas or liquid ejected by the combustor.

[0003] Currently, the ignition pins on the market adopt a linear or L-shaped structure design, with a small ignition area and a low ignition success rate. The ignition pin is arranged inside the ceramic inner tube. In the case of ceramic body fracture, the ignition pin cannot ignite. The ignition pin and the combustor are fixed by a threaded connection method, which is not convenient for disassembly and assembly and cannot meet people's usage requirements. Content of the Utility Model:

[0004] Aiming at the above problems, the technical problem to be solved by the utility model is to provide an ignition pin for commercial combustion appliances.

[0005] An ignition pin for commercial combustion appliances of the utility model comprises a combustor, an ignition core, a lock sleeve, and an ignition device. The ignition core is arranged in the middle of the combustor. A lock sleeve is welded on the outer side of the combustor. The lock sleeve is provided with a plug-in slot, and the plug-in slot is designed in a 7-shaped structure. One end of the plug-in slot is provided with a lock groove, and the ignition device is arranged inside the lock sleeve;

[0006] The ignition device is composed of a ceramic outer tube, a connection sleeve, a lock post, a limit nut, a spring, a ceramic inner tube, and an ignition pin. One end of the ceramic outer tube is provided with a connection sleeve. The connection sleeve and the ceramic outer tube are fixedly connected by two lock posts. One end of the connection sleeve is fixed with a limit nut. A spring is sleeved on the connection sleeve, and the spring is located between the lock post and the limit nut. A ceramic inner tube is arranged inside the ceramic outer tube, and an ignition pin is arranged inside the ceramic inner tube. One end of the ignition pin is integrally provided with an ignition head.

[0007] Preferably, the ignition head is designed in a ring structure.

[0008] Preferably, the two lock posts on the connection sleeve are inserted into the plug-in slot 31 of the lock sleeve.

[0009] Preferably, both the lock sleeve and the connection sleeve are designed in a cylindrical structure.

[0010] Preferably, the connection sleeve and the limit nut are designed in an integral structure and made of stainless steel.

[0011] Advantages of the present utility model: It has a reasonable structural design, beautiful appearance, novel and unique shape, simple installation, and convenient use. The ignition needle head adopts an annular structure design, which not only increases the fire detection area but also ensures the success rate of ignition and fire detection. By adopting a double-layer design of a ceramic inner tube and a ceramic outer tube, it avoids the quality problem of direct ignition inside due to cracking caused by the extremely cold and hot effects during the combustion of the ignition core. This double-layer ceramic body design can effectively protect the inner tube from cracking even after the outer tube cracks. As long as the inner tube does not crack, it can continuously ensure that there is no internal ignition. The ignition needle is fixed to the stainless steel and designed as a plug-and-play structure, which is convenient for the maintenance and replacement of the ignition needle. Brief Description of the Drawings:

[0012] For ease of explanation, the present utility model will be described in detail by the following specific embodiments and accompanying drawings.

[0013] Figure 1 Structural schematic diagram of the present utility model;

[0014] Figure 2 Front view of the present utility model;

[0015] Figure 3 Partial exploded view of the present utility model;

[0016] Figure 4 Structural schematic diagram of the ignition device in the present utility model;

[0017] Figure 5 Exploded view of the ignition device in the present utility model;

[0018] Figure 6 Installation structural schematic diagram of the ignition device and the lock sleeve in the present utility model.

[0019] 1 - Burner; 2 - Ignition core; 3 - Lock sleeve; 31 - Insertion slot; 32 - Lock groove; 4 - Ignition device; 41 - Ceramic outer tube; 42 - Connecting sleeve; 43 - Lock post; 44 - Limit nut; 45 - Spring; 46 - Ceramic inner tube; 47 - Ignition needle; 471 - Ignition needle head. Detailed Description of the Specific Embodiment:

[0020] As Figures 1-6 shown, the following technical solutions are adopted in this specific embodiment: It includes a burner 1, an ignition core 2, a lock sleeve 3, and an ignition device 4. An ignition core 2 is arranged in the middle of the burner 1. A lock sleeve 3 is welded on the outside of the burner 1. An insertion slot 31 is arranged on the lock sleeve 3. The insertion slot 31 is designed in a 7-shaped structure. One end of the insertion slot 31 is provided with a lock groove 32. An ignition device 4 is arranged in the lock sleeve 3;

[0021] The ignition device 4 is composed of a ceramic outer tube 41, a connecting sleeve 42, a locking post 43, a limit nut 44, a spring 45, a ceramic inner tube 46, and an ignition needle 47. One end of the ceramic outer tube 41 is provided with a connecting sleeve 42. The connecting sleeve 42 and the ceramic outer tube 41 are fixedly connected by two locking posts 43. One end of the connecting sleeve 42 is fixed with a limit nut 44. A spring 45 is sleeved on the connecting sleeve 42. The spring 45 is located between the locking post 43 and the limit nut 44. A ceramic inner tube 46 is arranged inside the ceramic outer tube 41, and an ignition needle 47 is arranged inside the ceramic inner tube 46. One end of the ignition needle 47 is integrally provided with an ignition needle head 471.

[0022] The ignition needle head 471 adopts an annular structure design, which can not only increase the fire detection area but also ensure the success rate of ignition and fire detection.

[0023] The two locking posts 43 on the connecting sleeve 42 are inserted into the insertion slots 31 of the locking sleeve 3 and reach the locking groove 32 at one end through the horizontal connection holes of the insertion slots 31 for positioning. This way of inserting and rotating for positioning makes the maintenance more convenient.

[0024] Both the locking sleeve 3 and the connecting sleeve 42 adopt a cylindrical structure design, which is convenient for rotating and locking.

[0025] The connecting sleeve 42 and the limit nut 44 are of an integral structure design and are made of stainless steel.

[0026] The structure design of this specific embodiment is reasonable, with a beautiful appearance and a novel and unique shape. It is simple to install and convenient to use. The ignition needle head adopts an annular structure design, which not only increases the fire detection area but also ensures the success rate of ignition and fire detection. By adopting the double-layer design of the ceramic inner tube and the ceramic outer tube, it avoids the quality problem of direct ignition inside due to cracking caused by the extremely cold and hot influence during the combustion of the ignition core. This double-layer ceramic body design can effectively protect the inner tube from cracking even after the outer tube cracks. As long as the inner tube does not crack, it can continuously ensure that there is no internal ignition. The ignition needle is fixed to the stainless steel and designed as a plug-in structure, which is convenient for the maintenance and replacement of the ignition needle.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An ignition needle for a commercial combustion apparatus, characterized in that: It comprises a burner (1), an ignition core (2), a lock sleeve (3) and an ignition device (4); the ignition core (2) is arranged in the middle of the burner (1); the lock sleeve (3) is welded to the outer side of the burner (1); a plug-in slot (31) is arranged on the lock sleeve (3); the plug-in slot (31) is designed in a 7-shaped structure; a lock slot (32) is arranged at one end of the plug-in slot (31); and the ignition device (4) is arranged in the lock sleeve (3); The ignition device (4) is composed of a ceramic outer tube (41), a connecting sleeve (42), a locking column (43), a limiting nut (44), a spring (45), a ceramic inner tube (46), and an ignition needle (47). A connecting sleeve (42) is arranged at one end of the ceramic outer tube (41). The connecting sleeve (42) and the ceramic outer tube (41) are fixedly connected via two locking columns (43). A limiting nut (44) is fixed at one end of the connecting sleeve (42). A spring (45) is sleeved on the connecting sleeve (42). The spring (45) is located between the locking column (43) and the limiting nut (44). A ceramic inner tube (46) is arranged in the ceramic outer tube (41). An ignition needle (47) is arranged in the ceramic inner tube (46). An ignition needle head (471) is integrally arranged at one end of the ignition needle (47).

2. The ignition needle for commercial combustion equipment according to claim 1, characterized in that: The ignition needle (471) is designed in an annular structure.

3. The ignition needle for commercial combustion equipment according to claim 1, characterized in that: The two locking pins (43) on the connecting sleeve (42) are inserted into the inserting grooves (31) of the locking sleeve (3).

4. The ignition needle for commercial combustion equipment according to claim 1, characterized in that: The locking sleeve (3) and the connecting sleeve (42) are both designed as cylindrical structures.

5. The ignition needle for commercial combustion equipment according to claim 1, characterized in that: The connecting sleeve (42) and the limiting nut (44) are designed as an integrated structure and are made of stainless steel.

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