Spark plug with overload center electrode

Abstract

The utility model relates to the technical field of sparking plugs with overload center electrodes, in particular to a sparking plug with an overload center electrode, which comprises a center electrode column and an insulating ring, the insulating ring is arranged outside the center electrode column, a separated structure is arranged outside the center electrode column, and the center electrode column is provided with an overload center electrode. A detachable structure is arranged outside the central electrode column, the detachable structure comprises a first insulating shell, the first insulating shell is arranged outside the central electrode column, a second insulating shell is arranged outside the central electrode column, and the first insulating shell and the second insulating shell can be spliced. And the outer wall of the first insulating shell is fixedly connected with a first mounting seat. According to the spark plug with the overload center electrode, the external insulation shell can be arranged in a separated mode, the insulation shell can be conveniently replaced when polluted or damaged, and practicability and convenience of the spark plug are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spark plugs with overloaded center electrodes, and specifically relates to a spark plug with an overloaded center electrode. Background Technique

[0002] A spark plug is an important component of the ignition system of a gasoline engine. It can introduce high-voltage electricity into the combustion chamber and make it jump across the electrode gap to generate a spark, thereby igniting the combustible mixture in the cylinder. It mainly consists of a terminal nut, an insulator, a terminal screw, a center electrode, a side electrode, and a housing, and the side electrode is welded to the housing.

[0003] For example, a spark plug with a large-load nickel-yttrium electrode of an authorized Chinese utility model patent with the publication number CN218887799U includes a center electrode column. The bottom end of the outer wall of the center electrode column is connected with an insulating shell, the top end of the outer wall of the center electrode column is connected with a top ring, the top end of the outer wall of the top ring is connected with a mounting ring, one side outer wall of the mounting ring is connected with a heat-insulating ring, the top of the center electrode column is connected with an insulating ring, the other side outer wall of the mounting ring is connected with a support block, and the center of the top of the support block is connected with an adapter block.

[0004] The existing spark plugs with overloaded center electrodes are insulated and protected by an insulating shell on the outside. However, during the use of the spark plug, the insulating shell is easily contaminated and damaged, resulting in the need to replace it. However, the integral insulating shell is inconvenient to replace during replacement, and it needs to be replaced as a whole, wasting resources. Therefore, there is an urgent need for a spark plug with an overloaded center electrode to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spark plug with an overloaded center electrode to solve the problem that the existing spark plugs with overloaded center electrodes are insulated and protected by an insulating shell on the outside. However, during the use of the spark plug, the insulating shell is easily contaminated and damaged, resulting in the need to replace it. However, the integral insulating shell is inconvenient to replace during replacement, and it needs to be replaced as a whole, wasting resources as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A spark plug with an overload center electrode, comprising: a center electrode column and an insulating ring. An insulating ring is provided outside the center electrode column. A split structure is provided outside the center electrode column. A disassembly and assembly structure is provided outside the center electrode column. The split structure includes a first insulating shell, which is arranged outside the center electrode column. A second insulating shell is provided outside the center electrode column. The first insulating shell and the second insulating shell can be spliced. A first mounting seat is fixedly connected to the outer wall of the first insulating shell. A second mounting seat is fixedly connected to the outer wall of the second insulating shell. A clamping seat is provided outside the first mounting seat and the second mounting seat. An installation rod is fixedly connected to the outer wall of the clamping seat. The installation rod is inserted into the first mounting seat and the second mounting seat. A limiting rod is inserted into the installation rod, and the limiting rod is inserted into the first mounting seat and the second mounting seat.

[0007] Preferably, the disassembly and assembly structure includes an installation ring, which is fixedly arranged on the outer wall of the center electrode column. A connection seat is provided outside the installation ring. A first connecting rod is fixedly connected to the upper end of the connection seat. A second connecting rod is fixedly connected to the outer wall of the first connecting rod. A nickel-yttrium side electrode is connected to the end of the second connecting rod far from the first connecting rod. An installation block is slidably arranged inside the connection seat. The installation block is installed inside the installation ring.

[0008] Preferably, a plug rod is inserted into the installation block. A pull rod is fixedly connected to the upper end of the plug rod. A spring is fixedly connected to the end of the plug rod far from the installation block. The spring is fixedly connected to the inner wall of the plug cavity. The plug cavity is opened inside the installation ring.

[0009] Preferably, a slider is fixedly connected to the side wall of the plug rod. The slider is slidably arranged inside the chute. The chute is opened inside the installation ring.

[0010] Preferably, a limiting block is fixedly connected to the outer wall of the end of the installation block inserted into the connection seat. The limiting block is slidably arranged inside the limiting groove. The limiting groove is opened inside the connection seat.

[0011] Preferably, a limiting bolt is installed inside the connection seat, and the limiting bolt is installed inside the installation block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The spark plug with an overloaded center electrode is provided with a separable structure. When using this spark plug with an overloaded center electrode, its exterior is insulated and protected by a first insulating shell and a second insulating shell. The first insulating shell and the second insulating shell are of a split structure, and their assembly can form an insulating shell. During use, when a part of it is contaminated or damaged and needs to be replaced, the limit rod can be pulled upward to move it out of the first mounting seat, the second mounting seat, and the interior of the mounting rod. Then, by pulling the clamping seat to drive the mounting rod to move synchronously, the mounting rod can be moved out of the interiors of the first mounting seat and the second mounting seat, and thus the first insulating shell and the second insulating shell can be conveniently disassembled and separated, and the damaged or contaminated part can be replaced. Through this design, it is realized that the spark plug with an overloaded center electrode can have a separable external insulating shell, which facilitates the replacement when the insulating shell is contaminated or damaged, and improves the practicability and convenience of the device.

[0014] 2. The spark plug with an overloaded center electrode is provided with a disassembly and assembly structure. When using this spark plug with an overloaded center electrode, it can make the spark plug bear a greater load by using the clamping seat. When the nickel-yttrium side electrode needs to be replaced, the pull rod can be pulled to drive the insertion rod to move away from the mounting block until it moves out of the interior of the mounting block. Subsequently, the mounting block is pulled to move away from the mounting ring until it moves out of the interior of the mounting ring. At this time, the restriction between the mounting block and the mounting ring is released, and the nickel-yttrium side electrode can be conveniently replaced. Through this design, it is realized that the spark plug with an overloaded center electrode can use the nickel-yttrium side electrode to make the spark plug bear a greater load, and the nickel-yttrium side electrode can be conveniently disassembled and replaced, which improves the practicability and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view structural schematic diagram of the present utility model;

[0016] Figure 2 is a front view sectional structural schematic diagram of the present utility model;

[0017] Figure 3 is a partial top view sectional structural schematic diagram of the present utility model;

[0018] Figure 4 is the present utility model Figure 2 is an enlarged schematic diagram of the structure at A in the present utility model.

[0019] In the figure: 111, central electrode column; 112, insulating ring; 2, split structure; 211, first insulating shell; 212, second insulating shell; 213, first mounting seat; 214, second mounting seat; 215, card seat; 216, mounting rod; 217, limiting rod; 3, disassembly and assembly structure; 311, mounting ring; 312, connecting seat; 313, first connecting rod; 314, second connecting rod; 315, nickel-yttrium side electrode; 316, mounting block; 317, inserting rod; 318, pulling rod; 319, inserting cavity; 320, spring; 321, slider; 322, sliding groove; 323, limiting bolt; 324, limiting block; 325, limiting groove. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present invention:

[0022] A spark plug with an overload center electrode includes: a center electrode column 111 and an insulating ring 112. The insulating ring 112 is arranged outside the center electrode column 111. A split structure 2 is arranged outside the center electrode column 111, and a disassembly and assembly structure 3 is arranged outside the center electrode column 111. The split structure 2 includes a first insulating shell 211, and the first insulating shell 211 is arranged outside the center electrode column 111. A second insulating shell 212 is arranged outside the center electrode column 111. The first insulating shell 211 and the second insulating shell 212 can be spliced. A first mounting seat 213 is fixedly connected to the outer wall of the first insulating shell 211, and a second mounting seat 214 is fixedly connected to the outer wall of the second insulating shell 212. A clamping seat 215 is clamped outside the first mounting seat 213 and the second mounting seat 214. An installation rod 216 is fixedly connected to the outer wall of the clamping seat 215. The installation rod 216 is inserted into the first mounting seat 213 and the second mounting seat 214. A limiting rod 217 is inserted into the installation rod 216, and the limiting rod 217 is inserted into the first mounting seat 213 and the second mounting seat 214. Through this design, when using this spark plug with an overload center electrode, its outside is insulated and protected by the first insulating shell 211 and the second insulating shell 212. The first insulating shell 211 and the second insulating shell 212 are of a split structure, and their assembly can form an insulating shell. During use, when a part of them is contaminated or damaged and needs to be replaced, the limiting rod 217 can be pulled upward to move it out of the first mounting seat 213, the second mounting seat 214, and the installation rod 216. Then, by pulling the clamping seat 215 to drive the installation rod 216 to move synchronously, the installation rod 216 can be moved out of the first mounting seat 213 and the second mounting seat 214, and the first insulating shell 211 and the second insulating shell 212 can be conveniently disassembled and separated, and the damaged or contaminated part can be replaced.

[0023] Further, the disassembly and assembly structure 3 includes a mounting ring 311, and the mounting ring 311 is fixedly arranged on the outer wall of the center electrode column 111. A connecting seat 312 is arranged outside the mounting ring 311. A first connecting rod 313 is fixedly connected to the upper end of the connecting seat 312. A second connecting rod 314 is fixedly connected to the outer wall of the first connecting rod 313. A nickel-yttrium side electrode 315 is connected to the end of the second connecting rod 314 far from the first connecting rod 313. An installation block 316 is slidably arranged inside the connecting seat 312, and the installation block 316 is installed inside the mounting ring 311. Through this design, when using this spark plug with an overload center electrode, it can make the spark plug bear a greater load by using the clamping seat 215. When the nickel-yttrium side electrode 315 needs to be replaced, the pull rod 318 can be pulled to drive the insertion rod 317 to move away from the installation block 316 until it moves out of the installation block 316. Then, the installation block 316 is pulled to move away from the mounting ring 311 until it moves out of the mounting ring 311. At this time, the installation block 316 and the mounting ring 311 are released from the restriction, and the nickel-yttrium side electrode 315 can be conveniently replaced.

[0024] Furthermore, a plug rod 317 is inserted inside the mounting block 316. The upper end of the plug rod 317 is fixedly connected to a pull rod 318. One end of the plug rod 317 away from the mounting block 316 is fixedly connected to a spring 320. The end of the spring 320 away from the plug rod 317 is fixedly connected to the inner wall of the plug cavity 319, and the plug cavity 319 is opened inside the mounting ring 311.

[0025] Furthermore, a slider 321 is fixedly connected to the side wall of the plug rod 317. The slider 321 is slidably arranged inside the chute 322, and the chute 322 is opened inside the mounting ring 311. Through this design, when the plug rod 317 moves, the slider 321 slides synchronously inside the chute 322, realizing the limiting effect on the plug rod 317 and making its movement more stable.

[0026] Furthermore, a limiting block 324 is fixedly connected to the outer wall of one end of the mounting block 316 inserted inside the connecting seat 312. The limiting block 324 is slidably arranged inside the limiting groove 325, and the limiting groove 325 is opened inside the connecting seat 312. Through this design, when the mounting block 316 moves, the limiting block 324 slides synchronously inside the limiting groove 325, realizing the limiting effect on the mounting block 316 and making its sliding more stable.

[0027] Furthermore, a limiting bolt 323 is installed inside the connecting seat 312, and the limiting bolt 323 is installed inside the mounting block 316. Through this design, the mounting block 316 is installed and limited inside the connecting seat 312 by using the limiting bolt 323, and the operation is simple and convenient.

[0028] Working principle:

[0029] When using the spark plug with an overload center electrode, its exterior is insulated and protected by the first insulating shell 211 and the second insulating shell 212. The first insulating shell 211 and the second insulating shell 212 are of a split structure, and their assembly can form an insulating shell. During use, when a part of them is contaminated or damaged and needs to be replaced, the limiting rod 217 can be pulled upward to move it out of the first mounting seat 213, the second mounting seat 214, and the mounting rod 216. Then, by pulling the clamping seat 215 to drive the mounting rod 216 to move synchronously, the mounting rod 216 can be moved out of the first mounting seat 213 and the second mounting seat 214, and the first insulating shell 211 and the second insulating shell 212 can be conveniently disassembled and separated, and the damaged or contaminated part can be replaced.

[0030] The spark plug with the overload center electrode can be used with the holder 215 to allow the spark plug to bear a greater load. When the nickel-yttrium side electrode 315 needs to be replaced, the pull rod 318 can be pulled to drive the plug 317 to move away from the mounting block 316 until it moves out of the mounting block 316. Then, the mounting block 316 is pulled away from the mounting ring 311 until it moves out of the mounting ring 311. At this time, the mounting block 316 and the mounting ring 311 are freed from restrictions, and the nickel-yttrium side electrode 315 can be easily replaced. The operation is now complete.

[0031] The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any ordinary technician in the industry can smoothly implement the present utility model as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the technical solution of the present utility model using the technical content disclosed above are all equivalent embodiments of the present utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present utility model are still within the protection scope of the technical solution of the present utility model.

Claims

1. A spark plug having an overloaded center electrode, comprising: A central electrode column (111) and an insulating ring (112), wherein the insulating ring (112) is arranged outside the central electrode column (111), characterized in that: a separate structure (2) is arranged outside the central electrode column (111), a disassembly structure (3) is arranged outside the central electrode column (111), the separate structure (2) comprises a first insulating shell (211), the first insulating shell (211) is arranged outside the central electrode column (111), a second insulating shell (212) is arranged outside the central electrode column (111), the first insulating shell (211) and the second insulating shell (212) can be spliced, and the first insulating shell (211) and the second insulating shell (212) can be spliced. The outer wall of an insulating shell (211) is fixedly connected to a first mounting seat (213), the outer wall of the second insulating shell (212) is fixedly connected to a second mounting seat (214), a clamping seat (215) is clamped outside the first mounting seat (213) and the second mounting seat (214), the outer wall of the clamping seat (215) is fixedly connected to a mounting rod (216), the mounting rod (216) is inserted inside the first mounting seat (213) and the second mounting seat (214), a limiting rod (217) is inserted inside the mounting rod (216), and the limiting rod (217) is inserted inside the first mounting seat (213) and the second mounting seat (214).

2. A spark plug with an overloaded center electrode according to claim 1, characterized in that: The disassembly and assembly structure (3) comprises a mounting ring (311), wherein the mounting ring (311) is fixedly arranged on the outer wall of the central electrode column (111), a connecting seat (312) is arranged outside the mounting ring (311), a first connecting rod (313) is fixedly connected to the upper end of the connecting seat (312), a second connecting rod (314) is fixedly connected to the outer wall of the first connecting rod (313), an end of the second connecting rod (314) away from the first connecting rod (313) is connected to a nickel-yttrium side electrode (315), and a mounting block (316) is slidably arranged inside the connecting seat (312), and the mounting block (316) is mounted inside the mounting ring (311).

3. A spark plug with an overloaded center electrode according to claim 2, characterized in that: An insertion rod (317) is inserted inside the mounting block (316), and a pull rod (318) is fixedly connected to the upper end of the insertion rod (317). An end of the insertion rod (317) away from the mounting block (316) is fixedly connected to a spring (320). An end of the spring (320) away from the insertion rod (317) is fixedly connected to the inner wall of an insertion cavity (319), and the insertion cavity (319) is opened inside the mounting ring (311).

4. A spark plug with an overloaded center electrode according to claim 3, characterized in that: The side wall of the insertion rod (317) is fixedly connected with a sliding block (321), and the sliding block (321) is slidably arranged inside a sliding groove (322), and the sliding groove (322) is opened inside the mounting ring (311).

5. A spark plug with an overloaded center electrode according to claim 2, characterized in that: The mounting block (316) is inserted into the outer wall of one end of the connection seat (312) and is fixedly connected to a limiting block (324). The limiting block (324) is slidably arranged inside a limiting groove (325). The limiting groove (325) is provided inside the connection seat (312).

6. A spark plug with an overloaded center electrode according to claim 2, characterized in that: A limiting bolt (323) is installed inside the connection seat (312), and the limiting bolt (323) is installed inside the mounting block (316).

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