Spark plug with multiple side electrodes

Abstract

The spark plug comprises an insulator, a mounting assembly, an electrode assembly, a shield and a fixing assembly, the mounting assembly is arranged at the bottom of the insulator, the electrode assembly is arranged at the bottom of the mounting assembly, the shield sleeves the top of the insulator, and the shield is used for protecting the insulator. The fixing assembly is arranged at the bottom of the insulator and is used for fixing the position of the shield; the mounting assembly comprises a first hexagonal block, a connecting block and a threaded rod, the first hexagonal block is arranged at the bottom of the insulator, and the connecting block is arranged at the bottom of the first hexagonal block. According to the utility model, through the design of the shield and the fixing assembly, the shield is firstly sleeved on the outer wall of the insulator and is fixed on the spark plug through the fixing assembly during use, and the insulator is protected through the shield, so that the condition that the insulator is damaged due to the fact that a wrench collides with the insulator when the spark plug is installed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spark plug, especially a spark plug with multiple side electrodes. BACKGROUND

[0002] The multiple side electrode spark plug is an improved spark plug design, which has multiple side electrodes compared to the traditional single side electrode spark plug, aiming to improve the ignition performance and reliability.

[0003] When the spark plug needs to be installed on the engine, the spark plug is first moved to the required position, and then the wrench is used to drive the spark plug to rotate and fix it in the required position. However, when the wrench is used to rotate the spark plug, the wrench will slide on the spark plug and hit the insulator of the spark plug, causing damage to the insulator. Therefore, the present application provides a spark plug with multiple side electrodes to solve the above problems. SUMMARY

[0004] The utility model discloses a spark plug with multiple side electrodes to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a spark plug with multiple side electrodes, comprising:

[0006] An insulator;

[0007] An installation assembly is arranged at the bottom of the insulator;

[0008] An electrode assembly is arranged at the bottom of the installation assembly;

[0009] A shield is sleeved on the top of the insulator, and the shield is used to protect the insulator;

[0010] A fixing assembly is arranged at the bottom of the insulator, and the fixing assembly is used to fix the position of the shield.

[0011] Preferably, the installation assembly comprises:

[0012] A first hexagonal block is arranged at the bottom of the insulator;

[0013] A connecting block is arranged at the bottom of the first hexagonal block;

[0014] A threaded rod is arranged at the bottom of the connecting block.

[0015] Preferably, the bottom of the connecting block is provided with a gasket, and the threaded rod is connected to the middle of the gasket.

[0016] Preferably, the electrode assembly comprises:

[0017] A center electrode is arranged at the bottom of the threaded rod.

[0018] A side electrode is arranged at the bottom of the threaded rod.

[0019] Preferably, the fixing assembly comprises a threaded column fixedly connected to the top end of the first hexagonal block, the threaded sleeve of the shield is sleeved at the top of the threaded column, the bottom of the shield is sleeved with a second hexagonal block, and a limiting piece is arranged at the connection position of the second hexagonal block and the first hexagonal block.

[0020] Preferably, the limiting piece comprises:

[0021] A sliding groove is arranged on one side of the second hexagonal block.

[0022] A sliding block is connected to the inside of the sliding groove, and a limiting part is arranged at the connection position of the sliding groove and the sliding block.

[0023] A positioning groove is arranged on one side of the first hexagonal block, and the sliding block is connected to the inside of the positioning groove.

[0024] Preferably, the limiting part comprises limiting grooves symmetrically arranged on both sides of the sliding groove, and limiting blocks symmetrically arranged on both sides of the sliding block are connected to the inside of the limiting grooves.

[0025] The technical effects and advantages of the utility model are as follows:

[0026] The utility model discloses a shield and fixing assembly design, when using, first the shield is sleeved on the outer wall of the insulator, and the shield is fixed on the spark plug through the fixing assembly, and the insulator is protected through the shield, avoids the wrench collision insulator when installing the spark plug, leads to the insulator damaged condition to produce. DRAWINGS

[0027] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model.

[0028] Figure 2 It is the utility model Figure 1 It is the enlarged structure schematic diagram of A part.

[0029] Figure 3 It is the part three-dimensional structure schematic diagram of the utility model.

[0030] Figure 4 It is the three-dimensional structure schematic diagram of the second hexagonal block of the utility model.

[0031] Figure 5 It is the section structure schematic diagram of the connection position of the fixing assembly and the shield of the utility model.

[0032] In the figure: 1, insulator; 2, mounting assembly; 201, first hexagonal block; 202, connecting block; 203, gasket; 204, threaded rod; 3, electrode assembly; 301, center electrode; 302, side electrode; 4, shield; 5, fixing assembly; 501, threaded column; 502, second hexagonal block; 6, limiting piece; 601, sliding groove; 602, limiting groove; 603, limiting block; 604, sliding block; 605, positioning groove. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] The utility model provides a spark plug with multiple side electrodes, which comprises: Figures 1-5 As shown in the figure:

[0035] Embodiment one

[0036] A spark plug with multiple side electrodes, which comprises:

[0037] An insulator 1;

[0038] A mounting assembly 2 is arranged at the bottom of the insulator 1;

[0039] An electrode assembly 3 is arranged at the bottom of the mounting assembly 2;

[0040] A shield 4 is sleeved at the top of the insulator 1, and the shield 4 is used for protecting the insulator 1;

[0041] A fixing assembly 5 is arranged at the bottom of the insulator 1, and the fixing assembly 5 is used for fixing the position of the shield 4.

[0042] It should be noted that the insulator 1 is made of alumina material, which has the characteristics of insulation and high temperature resistance; when it is necessary to fix the position of the spark plug, the spark plug is fixed at the required position through the mounting assembly 2; during use, the shield 4 is sleeved on the outer wall of the insulator 1, and the shield 4 is fixed on the spark plug through the fixing assembly 5; the insulator 1 is protected by the shield 4, so that the situation that the insulator 1 is damaged due to the collision of the wrench with the insulator 1 during the installation of the spark plug is avoided.

[0043] Specifically, the mounting assembly 2 comprises:

[0044] A first hexagonal block 201 is arranged at the bottom of the insulator 1;

[0045] The connecting block 202 is arranged at the bottom of the first hexagonal block 201.

[0046] The threaded rod 204 is arranged at the bottom of the connecting block 202.

[0047] Specifically, the bottom of the connecting block 202 is provided with a gasket 203, and the threaded rod 204 is connected to the middle of the gasket 203.

[0048] It should be noted that when it is necessary to fix the position of the spark plug, the threaded rod 204 of the spark plug is first inserted into the mounting hole of the engine, and then the first hexagonal block 201 is twisted by a wrench or a pneumatic tool, and the insulator 1 is rotated by the first hexagonal block 201 until the gasket 203 is in contact with the engine, and the connection between the spark plug and the engine is sealed by the gasket 203.

[0049] Specifically, the electrode assembly 3 comprises:

[0050] The center electrode 301 is arranged at the bottom of the threaded rod 204.

[0051] The side electrode 302 is arranged at the bottom of the threaded rod 204.

[0052] It should be noted that compared with the traditional single-side electrode spark plug, it has a plurality of side electrodes 302 distributed around the center electrode 301, and the side electrodes 302 are arranged, and the center electrode 301 and the side electrode 302 are both made of nickel alloy, which has good heat resistance and corrosion resistance, and can maintain performance for a long time in harsh engine environment.

[0053] Specifically, the fixing assembly 5 comprises a threaded column 501 fixedly connected to the top end of the first hexagonal block 201, the shroud 4 is threadedly sleeved on the top of the threaded column 501, the bottom of the shroud 4 is sleeved with a second hexagonal block 502, and the connecting part of the second hexagonal block 502 and the first hexagonal block 201 is provided with a limiting piece 6.

[0054] It should be noted that the cross section of the second hexagonal block 502 is arranged as a hexagon with a hole in the middle, so that the shroud 4 is connected to the inside of the hole, and the second hexagonal block 502 is fixedly sleeved on the bottom of the shroud 4. When the shroud 4 needs to be rotated, the wrench is sleeved on the second hexagonal block 502, and the second hexagonal block 502 and the shroud 4 are rotated by the wrench.

[0055] Further, when it is necessary to fix the position of the shroud 4, the shroud 4 is sleeved on the insulator 1, and the shroud 4 is threadedly sleeved on the threaded column 501.

[0056] Embodiment two:

[0057] The restriction member 6 is applied to the spark plug in embodiment one;

[0058] Specifically, the restriction member 6 comprises:

[0059] The sliding groove 601 is arranged on one side of the second hexagonal block 502;

[0060] The sliding block 604 is connected in the sliding groove 601, and the connecting part between the sliding groove 601 and the sliding block 604 is provided with a restriction part;

[0061] The positioning groove 605 is arranged on one side of the first hexagonal block 201, and the sliding block 604 is connected in the positioning groove 605.

[0062] It should be noted that the sliding groove 601 and the positioning groove 605 are matched with the sliding block 604, so that the sliding block 604 can slide in the sliding groove 601 and the positioning groove 605, the restriction part limits the moving direction of the sliding block 604, so as to avoid the random movement of the sliding block 604, after the position of the shield 4 is fixed, the sliding block 604 is pushed into the positioning groove 605, when the spark plug needs to be rotated, the wrench is arranged on the first hexagonal block 201, and the first hexagonal block 201 is driven to rotate by the wrench, when the wrench slides to the second hexagonal block 502, the second hexagonal block 502 is driven to rotate by the wrench, the second hexagonal block 502 drives the sliding block 604 and the first hexagonal block 201 to rotate mechanically, so as to avoid the situation that only the second hexagonal block 502 rotates when the wrench moves to the second hexagonal block 502.

[0063] Specifically, the restriction part comprises the restriction grooves 602 symmetrically arranged on both sides of the sliding groove 601, and the restriction blocks 603 symmetrically arranged on both sides of the sliding block 604 are connected in the restriction grooves 602.

[0064] It should be noted that the restriction grooves 602 are matched with the restriction blocks 603, the moving direction of the restriction blocks 603 is limited by the restriction grooves 602, and the moving direction of the sliding block 604 is limited by the restriction blocks 603.

[0065] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A spark plug with multiple electrodes, characterized in that, include: Insulator (1); Mounting component (2), which is disposed at the bottom of insulator (1); Electrode assembly (3), said electrode assembly (3) being disposed at the bottom of mounting assembly (2); A protective cover (4) is fitted over the top of the insulator (1) and is used to protect the insulator (1). Fixing component (5) is disposed at the bottom of the insulator (1) and is used to fix the position of the cover (4).

2. A spark plug with multi-sided electrodes according to claim 1, characterized in that, The installation component (2) includes: The first hexagonal block (201) is disposed at the bottom of the insulator (1); A connecting block (202) is disposed at the bottom of the first hexagonal block (201); A threaded rod (204) is disposed at the bottom of the connecting block (202).

3. A spark plug with multi-sided electrodes according to claim 2, characterized in that, The bottom of the connecting block (202) is provided with a gasket (203), and the threaded rod (204) is inserted and connected to the middle of the gasket (203).

4. A spark plug with multi-sided electrodes according to claim 1, characterized in that, The electrode assembly (3) includes: A center electrode (301) is disposed at the bottom of the threaded rod (204); Side electrode (302) is disposed at the bottom of the threaded rod (204).

5. A spark plug with multi-sided electrodes according to claim 1, characterized in that, The fixing component (5) includes a threaded post (501) fixedly connected to the top of the first hexagonal block (201), the cover (4) is threadedly fitted on the top of the threaded post (501), the bottom of the cover (4) is fitted with a second hexagonal block (502), and a limiting member (6) is provided at the connection between the second hexagonal block (502) and the first hexagonal block (201).

6. A spark plug with multi-sided electrodes according to claim 5, characterized in that, The limiting element (6) includes: A groove (601) is formed on one side of the second hexagonal block (502); A slider (604) is inserted into the interior of a groove (601), and a limiting part is provided at the connection between the groove (601) and the slider (604); A positioning groove (605) is provided on one side of the first hexagonal block (201), and the slider (604) is inserted into the interior of the positioning groove (605).

7. A spark plug with multi-sided electrodes according to claim 6, characterized in that, The limiting part includes limiting grooves (602) symmetrically opened on both sides of the slide groove (601), and limiting blocks (603) symmetrically arranged on both sides of the slider (604), the limiting blocks (603) being inserted into the interior of the limiting grooves (602).

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