Spark plug stable in ignition

Abstract

The utility model discloses a spark plug stable in ignition, which comprises an insulator and further comprises an electrode assembly arranged at the bottom of the insulator. The mounting assembly is used for fixing the position of the insulator, and the mounting assembly comprises a connecting block arranged in the middle of the insulator in a sleeving manner; the pressing plate is arranged at the top of the connecting block, and the pressing plate is used for limiting movement of the connecting block; the limiting assembly is arranged at the bottom of the pressing plate, and the limiting assembly is used for limiting movement of the pressing plate. According to the utility model, through the design of the pressing plate and the limiting assembly, the limiting assembly is fixed on an engine during use, when the position of a spark plug needs to be fixed, the spark plug is fixed at the required position through the mounting assembly, then the pressing plate is moved to the top end of the insulator connecting block, and the spark plug is fixed through pressing of the pressing plate. Therefore, the spark plug cannot move, and the situation of gas leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spark plugs, in particular to a spark plug with stable ignition. Background Art

[0002] The spark plug is a vital component in the engine. It generates an arc in the combustion chamber, ignites the mixture, drives the piston to move, and thus enables the engine to work.

[0003] When in use, the spark plug is first inserted into the engine through the threads on the spark plug, and the connection between the spark plug and the engine is sealed by the sealing gasket on the spark plug. However, after long-term use, the vibration of the engine may cause the threads at the connection between the spark plug and the engine to loosen, causing the spark plug to move to the side away from the engine, and the sealing gasket on the spark plug to lose its function, resulting in gas leakage. Utility Model Content

[0004] The purpose of the present utility model is to provide a spark plug with stable ignition to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a spark plug with stable ignition, comprising an insulator and:

[0006] an electrode assembly, wherein the electrode assembly is disposed at the bottom of the insulator;

[0007] A mounting assembly, the mounting assembly being used to fix the position of the insulator, the mounting assembly comprising a connecting block sleeved on the middle portion of the insulator;

[0008] A pressing plate, which is arranged on the top of the connecting block and is used to limit the movement of the connecting block;

[0009] The limiting component is arranged at the bottom of the pressing plate and is used to limit the movement of the pressing plate.

[0010] Preferably, the electrode assembly includes an iridium center electrode arranged at the bottom of an insulator, and an iridium side electrode is arranged at the bottom of the insulator.

[0011] Preferably, a hexagonal rotating block for rotating the insulator is sleeved on the middle of the insulator, a thread is provided on the bottom of the insulator, and a gasket is provided on the bottom of the connecting block.

[0012] Preferably, the limiting assembly includes a fixed block arranged at the bottom of the pressing plate, a connecting groove is opened at the top of the fixed block, and a connecting rod is fixedly connected to the bottom end of the pressing plate, and the connecting rod is inserted and connected inside the connecting groove.

[0013] Preferably, a limiting groove is provided on the inner wall of the middle portion of the connecting groove, and a limiting ring is sleeved on the middle portion of the connecting rod, and the limiting ring is inserted and connected to the interior of the limiting groove.

[0014] Preferably, the bottom end of the connecting rod is fixedly connected to a rotating block, the top of the rotating block is provided with a torsion spring, and the connecting rod is inserted and connected to the middle part of the torsion spring.

[0015] Preferably, a cavity is formed on the inner wall of the bottom end of the connecting groove, and the rotating block and the torsion spring are both inserted and connected inside the cavity.

[0016] The technical effects and advantages of this utility model are:

[0017] The utility model adopts the design of the pressing plate and the limiting assembly. When in use, the limiting assembly is fixed on the engine. When the position of the spark plug needs to be fixed, the spark plug is fixed in the required position by the mounting assembly, and then the pressing plate is moved to the top of the insulator connecting block. The pressing of the pressing plate prevents the spark plug from moving, thereby avoiding the occurrence of gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 It is a side structural diagram of the utility model.

[0020] Figure 3 This is a schematic diagram of the front structure of the utility model.

[0021] Figure 4 It is a partial front sectional structural diagram of the utility model.

[0022] In the figure: 1. Insulator; 2. Mounting assembly; 201. Hexagonal rotating block; 202. Connecting block; 203. Gasket; 204. Thread; 3. Electrode assembly; 301. Iridium center electrode; 302. Iridium side electrode; 4. Pressing plate; 5. Limiting assembly; 501. Connecting rod; 502. Connecting groove; 503. Limiting ring; 504. Fixed block; 505. Limiting groove; 506. Cavity; 507. Torsion spring; 508. Rotating block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-4 The spark plug with stable ignition shown includes an insulator 1 and further includes:

[0025] The electrode assembly 3 is arranged at the bottom of the insulator 1;

[0026] The mounting assembly 2 is used to fix the position of the insulator 1. The mounting assembly 2 includes a connecting block 202 sleeved on the middle part of the insulator 1;

[0027] Pressing plate 4, which is arranged on the top of the connecting block 202 and is used to limit the movement of the connecting block 202;

[0028] The limiting component 5 is arranged at the bottom of the pressing plate 4 and is used to limit the movement of the pressing plate 4.

[0029] It should be noted that the insulator 1 is an alumina insulator, which has the characteristics of insulation and high temperature resistance. When the position of the spark plug needs to be fixed, the spark plug is fixed at the required position through the mounting assembly 2, and then the pressing plate 4 is moved to the top of the connecting block 202 of the insulator 1. By pressing the pressing plate 4, the spark plug cannot move, thereby avoiding gas leakage.

[0030] Specifically, the electrode assembly 3 includes an iridium center electrode 301 disposed at the bottom of the insulator 1 , and an iridium side electrode 302 is disposed at the bottom of the insulator 1 .

[0031] It should be noted that iridium has excellent wear resistance, is not easily oxidized, has strong corrosion resistance, and can maintain its performance for a long time in harsh engine environments. The iridium center electrode 301 can be made small due to its high strength, usually only 0.4 to 0.6 mm, which makes the ignition energy more concentrated and the spark stronger, thereby improving combustion efficiency and ignition stability. Compared with traditional side electrodes, the iridium side electrode 302 is not easily corroded and has a longer service life, reducing the frequency of replacement.

[0032] Specifically, a hexagonal rotating block 201 for rotating the insulator 1 is sleeved on the middle of the insulator 1 , a thread 204 is provided on the bottom of the insulator 1 , and a gasket 203 is provided on the bottom of the connecting block 202 .

[0033] It should be noted that when the position of the spark plug needs to be fixed, the spark plug thread 204 is first inserted into the mounting hole of the engine, and then the hexagonal rotating block 201 is twisted with a wrench or pneumatic tool, and the insulator 1 is driven to rotate by the hexagonal rotating block 201 until the gasket 203 contacts the engine, and the connection between the spark plug and the engine is sealed by the gasket 203.

[0034] Specifically, the limiting component 5 includes a fixed block 504 arranged at the bottom of the pressing plate 4, a connecting groove 502 is provided at the top of the fixed block 504, a connecting rod 501 is fixedly connected to the bottom end of the pressing plate 4, the connecting rod 501 is inserted and connected inside the connecting groove 502, a limiting groove 505 is provided on the inner wall in the middle of the connecting groove 502, and a limiting ring 503 is sleeved in the middle of the connecting rod 501, and the limiting ring 503 is inserted and connected inside the limiting groove 505.

[0035] It should be noted that the fixed block 504 is fixed on the engine, the connecting groove 502 is adapted to the connecting rod 501, and both are cylindrical, so that the connecting rod 501 can be inserted into the inside of the connecting groove 502, and the limiting groove 505 is adapted to the limiting ring 503. The horizontal transverse cross-section of the limiting ring 503 is a circular ring, and the diameter of its outer ring is larger than the diameter of the connecting groove 502, so that the limiting ring 503 located in the limiting groove 505 cannot move out of the limiting groove 505, and the vertical movement of the limiting ring 503 is limited by the inner walls of the top and bottom ends of the limiting groove 505. By limiting the vertical movement of the fixing limiting ring 503, the connecting rod 501 and the pressing plate 4 are restricted, so that the connecting block 202 is pressed by the pressing plate 4 that limits the vertical movement.

[0036] Specifically, the bottom end of the connecting rod 501 is fixedly connected to a rotating block 508, a torsion spring 507 is provided on the top of the rotating block 508, the connecting rod 501 is inserted and connected in the middle of the torsion spring 507, and a cavity 506 is opened on the inner wall of the bottom end of the connecting groove 502, and the rotating block 508 and the torsion spring 507 are both inserted and connected inside the cavity 506.

[0037] It should be noted that the opened cavity 506 is compatible with the setting of the rotating block 508, and both are cylindrical, so that the rotating block 508 can rotate inside the cavity 506, and the two ends of the set torsion spring 507 are respectively connected to the rotating block 508 and the inner wall of the top of the cavity 506. When the rotating block 508 is rotated, the torsion spring 507 will be deformed. When the rotational force is lost, the torsion spring 507 will restore the deformation and drive the rotating block 508 to reset.

[0038] Furthermore, when the spark plug needs to be installed, the pressing plate 4 is first rotated, and the connecting rod 501 and the rotating block 508 are driven to rotate by the pressing plate 4, and the torsion spring 507 is pulled by the rotating block 508 to be deformed, and then the position of the spark plug is installed through the installation component 2. When the installation is completed, the rotation of the pressing plate 4 is released. At this time, the torsion spring 507 recovers its deformation and drives the rotating block 508, the connecting rod 501 and the pressing plate 4 to rotate, and the pressing plate 4 is rotated to the top of the connecting block 202.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spark plug with stable ignition, comprising an insulator (1), characterized in that: Also includes: an electrode assembly (3), the electrode assembly (3) being arranged at the bottom of the insulator (1); A mounting assembly (2), the mounting assembly (2) being used to fix the position of the insulator (1), the mounting assembly (2) comprising a connecting block (202) sleeved on the middle portion of the insulator (1); A pressing plate (4), the pressing plate (4) being arranged on the top of the connecting block (202), the pressing plate (4) being used to limit the movement of the connecting block (202); A limiting component (5) is provided at the bottom of the pressing plate (4), and the limiting component (5) is used to limit the movement of the pressing plate (4).

2. A spark plug with stable ignition according to claim 1, characterized in that: The electrode assembly (3) comprises an iridium center electrode (301) arranged at the bottom of an insulator (1), and an iridium side electrode (302) is arranged at the bottom of the insulator (1).

3. The spark plug with stable ignition according to claim 1, characterized in that: The middle of the insulator (1) is sleeved with a hexagonal rotating block (201) for rotating the insulator (1), the bottom of the insulator (1) is provided with a thread (204), and the bottom of the connecting block (202) is provided with a gasket (203).

4. The spark plug with stable ignition according to claim 1, characterized in that: The limiting assembly (5) comprises a fixed block (504) arranged at the bottom of the pressing plate (4), a connecting groove (502) is provided at the top of the fixed block (504), a connecting rod (501) is fixedly connected to the bottom end of the pressing plate (4), and the connecting rod (501) is inserted and connected inside the connecting groove (502).

5. The spark plug with stable ignition according to claim 4, characterized in that: A limiting groove (505) is provided on the inner wall of the middle portion of the connecting groove (502), and a limiting ring (503) is sleeved on the middle portion of the connecting rod (501), and the limiting ring (503) is inserted and connected inside the limiting groove (505).

6. The spark plug with stable ignition according to claim 5, characterized in that: The bottom end of the connecting rod (501) is fixedly connected to a rotating block (508), the top of the rotating block (508) is provided with a torsion spring (507), and the connecting rod (501) is inserted and connected to the middle part of the torsion spring (507).

7. The spark plug with stable ignition according to claim 6, characterized in that: A cavity (506) is formed on the inner wall of the bottom end of the connecting groove (502), and the rotating block (508) and the torsion spring (507) are both inserted and connected inside the cavity (506).

Images