Multi-pole precious metal spark plug

Abstract

The utility model relates to the technical field of spark plugs, in particular to a multi-pole precious metal spark plug which comprises a spark plug body, a positioning lantern ring is arranged on the top face of the spark plug body, an installation cylinder is arranged on the top face of the positioning lantern ring, external threads are arranged on the outer surface of the installation cylinder, and a central electrode is arranged in the installation cylinder. A side electrode is arranged in the central electrode; and the connecting piece is arranged on the lower surface of the spark plug body. Electric arcs can also be generated between the central electrode and the side electrode, so that the device can form at least two electric arcs for ignition, the electric arcs can also be generated through the side electrode, and when an external fastening sleeve is installed, the lower end surface of the fastening sleeve is installed on the upper surface of the abutting block, so that the outer fastening sleeve is installed. And through the design of four sets of side blocks and abutting blocks, the bottom end of an external fastening sleeve can be limited, and the overall limiting and fixing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of spark plugs, in particular to a multi-pole precious metal spark plug. 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. When the spark plug is installed on the engine, it is necessary to use a tool to place the spark plug into the reserved installation position of the engine, and then use an external fastening sleeve to tighten and transport the spark plug, and rotating the spark plug to a predetermined torque can complete the installation.

[0003] In this regard, Chinese Patent Application No.: CN219371679U discloses an engine spark plug with a reinforcement structure, including a spark plug body, and a plurality of reinforcement components are added to the spark plug body. An auxiliary sealing component is installed on the spark plug body, and the auxiliary sealing component and the reinforcement component are distributed at intervals. In the utility model, the positioning spring pushes the friction head to move and fit with the inner wall of the external fastening sleeve. The spark plug body will not fall off the external fastening sleeve, which is convenient for the staff to place the spark plug body into the reserved installation position of the engine with the help of the external fastening sleeve. With the assistance of the friction head, the stability of the external fastening sleeve during tightening is ensured, the problem of idling is avoided, the installation efficiency of the staff is improved, and the operation is convenient. With the cooperation of the auxiliary sealing component, the external sealing of the connection between the housing and the engine is realized, further improving the sealing performance of the connection between the spark plug body and the engine, and ensuring the safety and stability of the spark plug body during operation.

[0004] However, in actual use, the design of the friction head cannot provide a certain degree of resistance and limit the external fastening sleeve, so the overall stability effect is poor. Moreover, there is no fastening mechanism on the outer surface of the positioning nut, so the inner wall of the external fastening sleeve cannot be stabilized. Therefore, improving and modifying the above problems has become an urgent problem to be solved at present. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-pole precious metal spark plug to solve the problems raised in the above background technique that the design of the friction head cannot provide a certain degree of resistance and limit the external fastening sleeve, so the overall stability effect is poor, and there is no fastening mechanism on the outer surface of the positioning nut, so the inner wall of the external fastening sleeve cannot be stabilized.

[0006] To achieve the above object, the utility model provides the following technical solution: a multi-pole precious metal spark plug, comprising a spark plug body, a positioning collar is arranged on the top surface of the spark plug body, a mounting tube is arranged on the top surface of the positioning collar, an external thread is arranged on the outer surface of the mounting tube, a center electrode is arranged inside the mounting tube, and a side electrode is arranged inside the center electrode;

[0007] A connecting piece is installed on the lower surface of the spark plug body, a positioning ring is provided on the lower surface of the connecting piece, a mounting sleeve is provided on the lower surface of the positioning ring, a bottom ring is provided on the lower surface of the mounting sleeve, a side block is provided on the lower surface of the bottom ring, and an abutment block is provided on the left side surface of the side block.

[0008] Preferably, four groups of side blocks are provided, all of which are installed on the lower surface of the bottom ring.

[0009] Preferably, a stabilizing sleeve is provided on the outer surface of the mounting sleeve, and an arc-shaped groove is provided on the right side surface of the stabilizing sleeve.

[0010] Preferably, a telescopic rod is arranged inside the arc-shaped groove, a right side surface of the telescopic rod is arranged with a resistance pad, and a right side surface of the resistance pad is arranged with an anti-slip pad.

[0011] Preferably, a sealing ring is installed inside the positioning ring, and a sealing gasket is provided on the inner side wall of the sealing ring.

[0012] Preferably, an insulator is provided on the lower surface of the mounting sleeve, and a wire nut is provided on the lower surface of the insulator.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The multi-pole precious metal spark plug, through the spark plug body, positioning ring, mounting tube, external thread, center electrode, side electrode, connector, positioning ring, mounting sleeve, bottom ring, side block and contact block, can also generate an arc between the center electrode and the side electrode when in use, so that the device can form at least two arcs for ignition, and an arc can also be generated through the side electrode, and then when installing the external fastening sleeve, the lower end surface of the fastening sleeve is installed to the upper surface of the contact block, and then the bottom end of the external fastening sleeve can be limited by the design of four groups of side blocks and the contact block, the overall limiting and fixing effect is good, which reflects the practicality of the design.

[0015] 2. For this multi-pole precious metal spark plug, through the set stable sleeve, arc groove, telescopic rod, contact pad, anti-slip pad, sealing ring, gasket, insulator and terminal nut, when in use, when the inner wall side of the external fastening sleeve is not fastened, a stable sleeve is sleeved on the outer surface of the installation sleeve. At the same time, the telescopic rod is started, and the contact pad can be driven to move through the telescopic rod. Thus, the contact pad and the anti-slip pad will contact the inner wall of the external fastening sleeve. Through the anti-slip setting of the anti-slip pad, the stability during the installation of the external fastening sleeve can be enhanced to a great extent. Then, the whole spark plug body is installed. After the installation is completed, the whole external fastening sleeve and the stable sleeve can be removed. The overall stability is good. At the same time, through the design of the sealing ring and the gasket, the overall sealing performance of the positioning sleeve ring can be stronger, and the sealing ring can also be replaced, reflecting the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the structure of the present invention;

[0017] Figure 2 is an exploded schematic diagram of the positioning ring and the bottom ring structures of the present invention;

[0018] Figure 3 is an exploded schematic diagram of the positioning ring and the telescopic rod structures of the present invention;

[0019] Figure 4 is a three-dimensional schematic diagram of the positioning sleeve ring structure of the present invention.

[0020] In the figure: 1. Spark plug body; 2. Positioning sleeve ring; 3. Installation cylinder; 4. External thread; 5. Central electrode; 6. Side electrode; 7. Connector; 8. Positioning ring; 9. Installation sleeve; 10. Bottom ring; 11. Side block; 12. Contact block; 13. Stable sleeve; 14. Arc groove; 15. Telescopic rod; 16. Contact pad; 17. Anti-slip pad; 18. Sealing ring; 19. Gasket; 20. Insulator; 21. Terminal nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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 of 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.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present invention:

[0023] A multi-pole precious metal spark plug. The spark plug body 1, external thread 4, central electrode 5, side electrode 6, anti-slip pad 17, and insulator 20 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be elaborated here. It includes a spark plug body 1. A positioning collar 2 is provided on the top surface of the spark plug body 1. An installation cylinder 3 is provided on the top surface of the positioning collar 2. The outer surface of the installation cylinder 3 is provided with an external thread 4. A central electrode 5 is provided inside the installation cylinder 3. A side electrode 6 is provided inside the central electrode 5. A sealing ring 18 is installed inside the positioning collar 2. A sealing pad 19 is provided on the inner side wall of the sealing ring 18. When the inner wall side of the external fastening sleeve is not fastened, a stabilizing sleeve 13 is sleeved on the outer surface of the installation sleeve 9. At the same time, the telescopic rod 15 is activated. The telescopic rod 15 can drive the abutting pad 16 to move, so that the abutting pad 16 and the anti-slip pad 17 will abut against the inner wall of the external fastening sleeve. The anti-slip setting of the anti-slip pad 17 can greatly enhance the stability during the installation of the external fastening sleeve. Then the entire spark plug body 1 is installed. After the installation is completed, the external fastening sleeve and the stabilizing sleeve 13 are removed as a whole. The overall stability is good. At the same time, the design of the sealing ring 18 and the sealing pad 19 can make the overall sealing of the positioning collar 2 stronger. At the same time, the sealing ring 18 can also be replaced;

[0024] A connecting piece 7 is installed on the lower surface of the spark plug body 1. A positioning ring 8 is provided on the lower surface of the connecting piece 7. An installation sleeve 9 is provided on the lower surface of the positioning ring 8. A bottom ring 10 is provided on the lower surface of the installation sleeve 9. A side block 11 is provided on the lower surface of the bottom ring 10. A resisting block 12 is provided on the left side surface of the side block 11. There are four groups of side blocks 11, all installed on the lower surface of the bottom ring 10. A stabilizing sleeve 13 is provided on the outer surface of the installation sleeve 9. An arc-shaped groove 14 is opened on the right side surface of the stabilizing sleeve 13. A telescopic rod 15 is provided inside the arc-shaped groove 14. A resisting pad 16 is provided on the right side surface of the telescopic rod 15. An anti-slip pad 17 is provided on the right side surface of the resisting pad 16. An insulator 20 is provided on the lower surface of the installation sleeve 9. A wiring nut 21 is provided on the lower surface of the insulator 20. An electric arc can also be generated between the central electrode 5 and the side electrode 6, so that at least two electric arcs can be formed by this device for ignition. An electric arc can also be generated through the side electrode 6. Then when installing the external fastening sleeve, by installing the lower end surface of the fastening sleeve onto the upper surface of the resisting block 12, and through the design of the four groups of side blocks 11 and the resisting block 12, the bottom end of the external fastening sleeve can be limited. The overall limiting and fixing effect is good.

[0025] Working principle: During use, an electric arc can also be generated between the central electrode 5 and the side electrode 6, enabling the device to form at least two electric arcs for ignition. An electric arc can also be generated through the side electrode 6. Then, when installing the external fastening sleeve, the lower surface of the fastening sleeve is installed against the upper surface of the abutting block 12. The design of the four groups of side blocks 11 and the abutting block 12 can limit the bottom end of the external fastening sleeve. When the inner wall side of the external fastening sleeve is not fastened, a stabilizing sleeve 13 is sleeved on the outer surface of the installation sleeve 9. At the same time, the telescopic rod 15 is activated, and the telescopic rod 15 can drive the abutting pad 16 to move. Thus, the abutting pad 16 and the anti-slip pad 17 will abut against the inner wall of the external fastening sleeve. The anti-slip setting of the anti-slip pad 17 can greatly enhance the stability during the installation of the external fastening sleeve. Then, the spark plug body 1 is installed as a whole. After the installation is completed, the external fastening sleeve and the stabilizing sleeve 13 can be removed as a whole. The overall stability is good. At the same time, the design of the sealing ring 18 and the sealing gasket 19 can make the overall sealing of the positioning collar 2 stronger, and the sealing ring 18 can also be replaced. The above is all the working principles of the present utility model.

[0026] The above is only the preferred embodiment of the present utility model and does not impose any form of limitation on the present utility model. Any person skilled in the art of this industry can smoothly implement the present utility model according to the illustrations in the specification and the above description. However, any minor changes, modifications, and equivalent variations made by those skilled in this professional field without departing from the technical solution of the present utility model by utilizing the technical content disclosed above are all equivalent embodiments of the present utility model. At the same time, any equivalent changes, modifications, and variations made to the above embodiments based on the essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-pole precious metal spark plug, comprising a spark plug body (1), a positioning collar (2) is provided on the top surface of the spark plug body (1), and a mounting cylinder (3) is provided on the top surface of the positioning collar (2), characterized in that: The outer surface of the installation tube (3) is provided with an external thread (4), the interior of the installation tube (3) is provided with a central electrode (5), and the interior of the central electrode (5) is provided with a side electrode (6); A connecting piece (7) is mounted on the lower surface of a spark plug body (1); a positioning ring (8) is arranged on the lower surface of the connecting piece (7); a mounting sleeve (9) is arranged on the lower surface of the positioning ring (8); a bottom ring (10) is arranged on the lower surface of the mounting sleeve (9); a side block (11) is arranged on the lower surface of the bottom ring (10); and a resistance block (12) is arranged on the left side surface of the side block (11).

2. The multi-pole precious metal spark plug according to claim 1, characterized in that: The side blocks (11) are provided in four groups, all of which are mounted on the lower surface of the bottom ring (10).

3. The multi-pole precious metal spark plug according to claim 1, characterized in that: The outer surface of the installation sleeve (9) is provided with a stabilizing sleeve (13), and the right side surface of the stabilizing sleeve (13) is provided with an arc-shaped groove (14).

4. A multi-pole precious metal spark plug according to claim 3, characterized in that: A telescopic rod (15) is arranged inside the arc-shaped groove (14), a right side surface of the telescopic rod (15) is arranged with a resistance pad (16), and a right side surface of the resistance pad (16) is arranged with an anti-slip pad (17).

5. A multi-pole precious metal spark plug according to claim 1, characterized in that: A sealing ring (18) is installed inside the positioning collar (2), and a sealing gasket (19) is provided on the inner side wall of the sealing ring (18).

6. A multi-pole precious metal spark plug according to claim 1, characterized in that: An insulator (20) is arranged on the lower surface of the installation sleeve (9), and a wire nut (21) is arranged on the lower surface of the insulator (20).

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