A large displacement motorcycle spark plug

Abstract

The utility model discloses a big displacement motorcycle spark plug, include: spark plug main part, protection subassembly and rotating component, protection subassembly is used for the closure of spark plug main part and engine junction, and protection subassembly includes the covering of the sleeve setting in the outside of spark plug main part, and the outside of covering is provided with the limiting portion for the compression of covering and spark plug main part, and the junction of covering and spark plug main part is provided with the occlusal part, and rotating component sets up in the outside of spark plug main part and is located the inside of covering, and rotating component is used for the jointing rotation of spark plug main part. The utility model discloses through setting up protection subassembly in the outside of spark plug main part, and the connecting place area of spark plug main part and engine is covered with the covering of limiting portion fixed in protection subassembly, avoids the connection of spark plug main part and engine to gather mud dust, prevents the process of using rotating component to rotate and to separate from spark plug main part, and the mud dust of broken easily falls into the inside of engine cylinder.

Description

Technical Field

[0001] This utility model relates to the field of spark plug technology, and in particular to a large-displacement motorcycle spark plug. Background Technology

[0002] In large-displacement motorcycle engine systems, the spark plug, as a core component of the ignition system, directly affects the engine's power output and operational reliability due to its operational stability. Traditional spark plugs mostly adopt an exposed structure, meaning that the main body of the spark plug is directly exposed on the outside of the engine.

[0003] However, dust generated during motorcycle operation, mud and sand carried by rainwater, and road debris can easily accumulate in the gap between the spark plug and the engine, forming hard clumps over time. When repairing or replacing spark plugs, a socket tool is needed to rotate the spark plug body for removal and installation. When the spark plug is turned to disengage it from the mounting hole, the dry mud clumps accumulated at the connection point are shaken off and the broken particles can easily fall into the combustion chamber along the engine cylinder intake manifold, causing scratches on the piston top, poor valve sealing, or catalytic converter blockage. Therefore, how to achieve full-enclosed protection of the spark plug connection area and prevent mud and dust from accumulating around it has become an urgent technical problem to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a large-displacement motorcycle spark plug to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-displacement motorcycle spark plug, comprising: Spark plug body, the spark plug body being used for ignition of a motorcycle engine; A protective component is provided for sealing the connection between the spark plug body and the engine. The protective component includes a cover portion sleeved on the outside of the spark plug body, a limiting portion for pressing the cover portion and the spark plug body together on the outside of the cover portion, and an engagement portion for enhancing the friction at the connection between the cover portion and the spark plug body. A rotating assembly is disposed on the outside of the spark plug body and on the inside of the cover, and the rotating assembly is used for the snap-fit ​​rotation of the spark plug body.

[0006] Preferably, the covering portion includes: A protective cover, which is fitted over the outside of the spark plug body; A sealing ring is fitted onto the inner wall of one end of the protective sleeve, and the sealing ring is used to increase the tightening elasticity of one end of the protective sleeve.

[0007] Preferably, the protective sleeve is configured as a frustum-shaped sleeve, and the frustum-shaped sleeve of the protective sleeve is used to enclose the rotating component.

[0008] Preferably, the inner wall of the protective sleeve is provided with a plurality of reinforcing ribs, which are used to strengthen the tight wrapping of the protective sleeve.

[0009] Preferably, the limiting portion includes: A limiting groove is provided on the outside of the spark plug body, and the limiting groove is used for the sleeve to be fitted and engaged at the other end of the protective sleeve. A clamping ring is sleeved on the outer side of the other end of the protective sleeve, and the clamping ring is used to clamp the protective sleeve and the limiting groove.

[0010] Preferably, the occlusal portion includes: The first bite pattern is disposed around the inner wall of the limiting groove; The second bite mark is arranged around the inner wall of the other end of the protective sleeve, and the second bite mark is used to bite the first bite mark.

[0011] Preferably, the spark plug body has a thread on its top, which is used for threaded connection between the spark plug body and the terminal nut.

[0012] Preferably, the rotating assembly includes a hexagonal protrusion disposed on the outer side of the spark plug body, and the hexagonal protrusion is used to assist the tool engagement and rotation of the spark plug body.

[0013] The technical effects and advantages of this utility model are as follows: This invention provides a protective component on the outside of the spark plug body. The covering part fixed by the limiting part in the protective component covers the connection area between the spark plug body and the engine, preventing the accumulation of mud and dust at the connection between the spark plug body and the engine. It also prevents the fragmented mud and dust from falling into the engine cylinder during the process of rotating the spark plug body away from the spark plug body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection between the entire structure of this utility model and the engine.

[0015] Figure 2 This is a cross-sectional view of the protective component of this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the protective sleeve of this utility model.

[0018] In the diagram: 1. Spark plug body; 101. Hexagonal protrusion; 102. Limiting groove; 1021. First engagement pattern; 2. Protective sleeve; 201. Sealing protrusion; 202. Reinforcing rib; 203. Second engagement pattern; 3. Pressure ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides, for example Figure 1-4 The large-displacement motorcycle spark plug shown includes: a spark plug body 1, a protective component and a rotating component; Specifically, the spark plug body 1 is used for ignition of the motorcycle engine, the protective component is used for sealing the connection between the spark plug body 1 and the engine, the rotating component is located on the outside of the spark plug body 1 and inside the cover, the rotating component is used for the snap-fit ​​rotation of the spark plug body 1, and the top of the spark plug body 1 is provided with threads for the spark plug body 1 to be threadedly connected to the terminal nut. It should be noted that the protective component includes a cover portion fitted onto the outside of the spark plug body 1, and a limiting portion for pressing the cover portion and the spark plug body 1 together is provided on the outside of the cover portion, and an engagement portion for enhancing the friction at the connection between the cover portion and the spark plug body 1 is provided at the connection point. Specifically, the covering part includes: a protective sleeve 2 and a sealing protrusion 201; It should be noted that the protective sleeve 2 is fitted on the outside of the spark plug body 1, and the sealing ring 201 is fitted on the inner wall of one end of the protective sleeve 2. The sealing ring 201 is used to increase the tightening elasticity of one end of the protective sleeve 2. Specifically, the inner wall of the protective sleeve 2 is surrounded by multiple reinforcing ribs 202. The reinforcing ribs 202 are used to strengthen the tight wrapping of the protective sleeve 2. The protective sleeve 2, the sealing convex ring 201 and the reinforcing ribs 202 are all made of rubber. They are connected into a whole by an integrated injection molding process. The protective sleeve 2 is set as a frustum sleeve shape. The frustum sleeve shape of the protective sleeve 2 is used to wrap the rotating component. Furthermore, the limiting part includes: a limiting groove 102 and a clamping ring 3; It should be noted that the limiting groove 102 is opened on the outside of the spark plug body 1. The limiting groove 102 is used for the sleeve and locking of the other end of the protective sleeve 2. The clamping ring 3 is sleeved on the outside of the other end of the protective sleeve 2. The clamping ring 3 is used to clamp the protective sleeve 2 and the limiting groove 102. Specifically, the inner wall of the other end of the clamping ring 3 is convex, which fits tightly against the inner wall of the limiting groove 102. The clamping ring 3 is made of plastic and fits tightly against the outer side of the protective sleeve 2.

[0021] It should be noted that the occlusal portion includes: the first occlusal pattern 1021 and the second occlusal pattern 203; Specifically, the first bite pattern 1021 is arranged around the inner wall of the limiting groove 102, and the second bite pattern 203 is arranged around the inner wall of the other end of the protective sleeve 2. The second bite pattern 203 is used to bite the first bite pattern 1021. It should be noted that both the first bite pattern 1021 and the second bite pattern 203 are toothed, and the toothed bite increases the friction between the protective sleeve 2 and the limiting groove 102.

[0022] Specifically, the rotating component includes a hexagonal protrusion 101, which is disposed on the outside of the spark plug body 1. The hexagonal protrusion 101 is used to assist the tool engagement rotation of the spark plug body 1. It should be noted that when the spark plug body 1 is rotated during installation, the protective cover 2 is flipped to the top of the spark plug body 1, so that the hexagonal protrusion 101 is exposed, in order to avoid affecting the locking and rotation of the hexagonal protrusion 101. In actual use, a protective component is provided on the outside of the spark plug body 1. The covering part fixed by the limiting part in the protective component covers the area where the spark plug body 1 connects with the engine, so as to prevent the accumulation of mud and dust at the connection between the spark plug body 1 and the engine, and to prevent the fragmented mud and dust from falling into the engine cylinder during the process of rotating the rotating component to detach from the spark plug body 1.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spark plug for a large-displacement motorcycle, characterized in that, include: Spark plug body (1), the spark plug body (1) is used for ignition of motorcycle engine; A protective component is used to seal the connection between the spark plug body (1) and the engine. The protective component includes a cover portion sleeved on the outside of the spark plug body (1). A limiting portion for pressing the cover portion and the spark plug body (1) is provided on the outside of the cover portion. A biting portion for enhancing the friction at the connection between the cover portion and the spark plug body (1) is provided at the connection between the cover portion and the spark plug body (1). A rotating assembly is disposed on the outside of the spark plug body (1) and on the inside of the cover portion. The rotating assembly is used for the snap-fit ​​rotation of the spark plug body (1).

2. The spark plug for a large-displacement motorcycle according to claim 1, characterized in that, The covering portion includes: A protective sleeve (2) is fitted onto the outside of the spark plug body (1); A sealing ring (201) is fitted onto the inner wall of one end of the protective sleeve (2). The sealing ring (201) is used to increase the tightening elasticity of one end of the protective sleeve (2).

3. A large-displacement motorcycle spark plug according to claim 2, characterized in that, The protective sleeve (2) is configured as a frustum sleeve, and the frustum sleeve of the protective sleeve (2) is used to wrap the rotating component.

4. A large-displacement motorcycle spark plug according to claim 2, characterized in that, The inner wall of the protective sleeve (2) is provided with a plurality of reinforcing ribs (202), which are used to reinforce the tight wrapping of the protective sleeve (2).

5. A large-displacement motorcycle spark plug according to claim 2, characterized in that, The limiting part includes: A limiting groove (102) is provided on the outside of the spark plug body (1), and the limiting groove (102) is used for the sleeve and locking of the other end of the protective sleeve (2). A clamping ring (3) is sleeved on the other side of the protective sleeve (2). The clamping ring (3) is used to clamp the protective sleeve (2) and the limiting groove (102).

6. A large-displacement motorcycle spark plug according to claim 5, characterized in that, The occlusal portion includes: The first bite pattern (1021) is disposed around the inner wall of the limiting groove (102); The second bite mark (203) is arranged around the inner wall of the other end of the protective sleeve (2), and the second bite mark (203) is used to bite the first bite mark (1021).

7. A large-displacement motorcycle spark plug according to claim 1, characterized in that, The spark plug body (1) has a thread on its top, which is used for threaded connection between the spark plug body (1) and the terminal nut.

8. A large-displacement motorcycle spark plug according to claim 1, characterized in that, The rotating assembly includes a hexagonal protrusion (101) which is located on the outside of the spark plug body (1) and is used to assist the tool engagement rotation of the spark plug body (1).

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