Anti-collision device for installation of spark plug of engine

Abstract

The utility model provides an engine spark plug installation anti-collision device, which relates to the technical field of engine spark plug assembly tools and comprises a first anti-collision sleeve and a cover plate, and one end of the first anti-collision sleeve is movably connected with a second anti-collision sleeve through threads. The cover plate is movably connected to the end, away from the second anti-collision sleeve, of the first anti-collision sleeve through a clamping piece, the bottom wall of the cover plate is fixedly connected with a sealing assembly, through the arrangement of the sealing assembly, the problem that dust enters the spark plug is avoided, and the problem that dust will form carbon deposition on an electrode and a porcelain core of the spark plug is solved. And the ignition performance of the spark plug is influenced by carbon deposition, and the service life of the spark plug is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine spark plug assembly tooling, in particular to an engine spark plug installation anti-collision device. Background Art

[0002] The engine spark plug is an important component of the gasoline engine ignition system. It can introduce high voltage electricity into the combustion chamber and make it jump over the electrode gap to generate sparks, thereby igniting the combustible mixture in the cylinder. It is mainly composed of a wire nut, an insulator, a wire screw, a center electrode, a side electrode and a shell. The side electrode is welded to the shell. The working principle of the spark plug is that under the action of high voltage, the air between the center electrode and the side electrode of the spark plug will rapidly ionize to form positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain value, the number of ions and electrons in the gas increases like snow, causing the air to lose its insulation, and a discharge channel is formed in the gap, resulting in a "breakdown" phenomenon. At this time, the gas forms a luminous body, namely a "spark".

[0003] In the prior art, when installing the spark plug, the engine cover is first opened, the cylinder wire is unplugged by hand, and then the spark plug is removed with a special spark plug sleeve. After taking out the original spark plug, a new spark plug is placed in the special spark plug sleeve, the new spark plug sleeve is placed in the engine cylinder, and finally the high-voltage branch line is put on. After the spark plugs are installed one by one, the engine cover is tightened. During the installation process, the spark plug may collide with the engine, causing damage to the spark plug. Before the installation of the existing spark plug, a rubber hose sleeve is put on its outer surface, and then the spark plug with the rubber hose sleeve is placed aside. However, when the existing rubber hose sleeve is put on the surface of the spark plug, an open end is opened on one side. Since the rubber hose sleeve has an open end at one end, when the spark plug is placed aside, dust may enter the spark plug, and carbon deposits may be formed on the electrode and the porcelain core of the spark plug. The carbon deposits will affect the ignition performance of the spark plug and may shorten the service life of the spark plug.

[0004] Therefore, it is necessary to provide a new anti-collision device for installing the spark plug of an engine to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an anti-collision device for installing an engine spark plug.

[0006] The utility model provides an engine spark plug installation anti-collision device, comprising a first anti-collision sleeve and a cover plate, wherein one end of the first anti-collision sleeve is movably connected to a second anti-collision sleeve through a thread, the cover plate is movably connected to an end of the first anti-collision sleeve away from the second anti-collision sleeve through a clamping member, and a sealing assembly is fixedly connected to the bottom wall of the cover plate;

[0007] The sealing assembly includes a resistance sealing ring, a first hollow sealing ring, a second hollow sealing ring and a plurality of buffer mechanisms, wherein the plurality of buffer mechanisms are fixedly connected to one end of the cover plate away from the first anti-collision sleeve, the resistance sealing ring is fixedly connected to one end of the plurality of buffer mechanisms away from the cover plate, and a guide rail is provided on the resistance sealing ring, a fixing ring is fixedly connected in the guide rail, the first hollow sealing ring is fixedly connected to one end of the fixing ring away from the first resistance sealing ring, and the second hollow sealing ring is fixedly connected to one end of the first anti-collision sleeve away from the second anti-collision sleeve.

[0008] Preferably, the buffer mechanism includes a hollow barrel, a hydraulic rod, a buffer frame and an elastic member, the hollow barrel is fixedly connected to the end of the cover plate away from the first anti-collision device, the hydraulic rod is fixedly connected to the top wall of the hollow barrel, the buffer frame is fixedly connected to the telescopic end of the hydraulic rod, and the end of the buffer frame away from the hydraulic rod is fixedly connected to the bottom wall of the abutting sealing ring, the elastic member is sleeved on the hydraulic rod, one end of the elastic member is fixedly connected to the top wall of the hollow barrel, and the end of the elastic member away from the hollow barrel is fixedly connected to the bottom wall of the buffer frame.

[0009] Preferably, the elastic member is a buffer spring, the buffer spring is sleeved on the hydraulic rod, one end of the buffer spring is fixedly connected to the top wall of the hollow barrel, and one end of the buffer spring away from the hollow barrel is fixedly connected to the bottom wall of the buffer frame.

[0010] Preferably, the outer surface of the first anti-collision sleeve is connected to a limiting strip, and the limiting strip is in the shape of an annular protrusion.

[0011] Preferably, the thread provided on the first anti-collision sleeve matches with the thread provided on the second anti-collision sleeve.

[0012] Preferably, the outer periphery of the second anti-collision sleeve has a friction portion.

[0013] Compared with the related art, the engine spark plug installation anti-collision device provided by the utility model has the following beneficial effects:

[0014] By means of the provided sealing assembly, when the spark plug is placed in the rubber hose sleeve, the cover plate and the first anti-collision sleeve are first connected together by the engaging piece, and while closing, the first hollow sealing ring and the second hollow sealing ring are fitted together. In this process, the first hollow sealing ring and the second hollow sealing ring are squeezed against each other, and the buffer mechanism is compressed while squeezing, and the first hollow sealing ring and the second hollow sealing ring on the sealing plate are pushed in the opposite direction to fit together. The resisting force prevents the first hollow sealing ring and the second hollow sealing ring from deforming and forming a gap. This device avoids the problem of dust entering the spark plug, solves the problem that dust will form carbon deposits on the electrode and the porcelain core of the spark plug, resulting in carbon deposits affecting the ignition performance of the spark plug, and increases the service life of the spark plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the cross-section structure of an engine spark plug installation anti-collision device provided by the utility model;

[0016] Figure 2 A schematic diagram of the structure of an engine spark plug installation anti-collision device provided by the utility model;

[0017] Figure 3 for Figure 1 The structural schematic diagram of the cover plate and the sealing assembly shown;

[0018] Figure 4 for Figure 3 The exploded structural diagram of the sealing assembly shown;

[0019] Figure 5 for Figure 4 A schematic cross-sectional view of the buffer mechanism is shown.

[0020] Numbers in the figure: 1. first anti-collision sleeve; 2. cover plate; 3. second anti-collision sleeve; 4. interference sealing ring; 5. first hollow sealing ring; 6. second hollow sealing ring; 7. guide rail; 8. fixing ring; 9. hollow barrel; 10. hydraulic rod; 11. buffer frame; 12. buffer spring; 13. limit strip. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 A schematic diagram of the cross-section structure of an engine spark plug installation anti-collision device provided by the utility model; Figure 2 A schematic diagram of the structure of an engine spark plug installation anti-collision device provided by the utility model; Figure 3 for Figure 1 The structural schematic diagram of the cover plate and the sealing assembly shown; Figure 4 for Figure 3 The exploded structural diagram of the sealing assembly shown; Figure 5 for Figure 4 A schematic cross-sectional view of the buffer mechanism is shown.

[0023] In the specific implementation process, Figures 1 to 5As shown, one end of the first anti-collision sleeve 1 is movably connected to the second anti-collision sleeve 3 through a thread, the cover plate 2 is movably connected to the end of the first anti-collision sleeve 1 away from the second anti-collision sleeve 3 through a clamping piece, and the bottom wall of the cover plate 2 is fixedly connected to a sealing assembly, the sealing assembly includes a resisting sealing ring 4, a first hollow sealing ring 5, a second hollow sealing ring 6 and a plurality of buffer mechanisms, the plurality of buffer mechanisms are fixedly connected to the end of the cover plate 2 away from the first anti-collision, the resisting sealing ring 4 is fixedly connected to the end of the plurality of buffer mechanisms away from the cover plate 2, and a guide rail 7 is provided on the resisting sealing ring 4, and a fixing ring 8 is fixedly connected inside the guide rail 7 The first hollow sealing ring 5 is fixedly connected to the end of the fixing ring 8 away from the first conflicting sealing ring 4, the second hollow sealing ring 6 is fixedly connected to the end of the first anti-collision sleeve 1 away from the second anti-collision sleeve 3, the buffer mechanism includes a hollow barrel 9, a hydraulic rod 10, a buffer frame 11 and an elastic member, the hollow barrel 9 is fixedly connected to the end of the cover plate 2 away from the first collision prevention, the hydraulic rod 10 is fixedly connected to the top wall of the hollow barrel 9, the buffer frame 11 is fixedly connected to the telescopic end of the hydraulic rod 10, and the end of the buffer frame 11 away from the hydraulic rod 10 is fixedly connected to the bottom wall of the conflicting sealing ring 4, the elastic member is sleeved on the hydraulic rod 10, and the elastic One end of the elastic member is fixedly connected to the top wall of the hollow barrel 9, and the end of the elastic member away from the hollow barrel 9 is fixedly connected to the bottom wall of the buffer frame 11. The elastic member is a buffer spring 12, and the buffer spring 12 is sleeved on the hydraulic rod 10. One end of the buffer spring 12 is fixedly connected to the top wall of the hollow barrel 9, and the end of the buffer spring 12 away from the hollow barrel 9 is fixedly connected to the bottom wall of the buffer frame 11. The outer surface of the first anti-collision sleeve 1 is connected to a limiting strip 13, and the limiting strip 13 is an annular protrusion shape. The thread set on the first anti-collision sleeve 1 matches the thread set on the second anti-collision sleeve 3, and the outer periphery of the second anti-collision sleeve 3 has a friction portion. When the spark plug is placed in the rubber hose sleeve, the cover plate 2 and the first anti-collision sleeve 1 are first connected together by the snap-fitting piece. While closing, the first hollow sealing ring 5 and the second hollow sealing ring 6 are fitted together. In this process, the first hollow sealing ring 5 and the second hollow sealing ring 6 are squeezed against each other. While squeezing, the buffer spring 12 is compressed by the buffer frame 11, and the first hollow sealing ring 5 and the second hollow sealing ring 6 on the sealing plate are pushed in the opposite direction to fit together. The resisting force prevents the first hollow sealing ring 5 and the second hollow sealing ring 6 from deforming and generating gaps, thereby ensuring the sealing performance during long-term use.

[0024] The working principle provided by the utility model is as follows: when in use, when the spark plug is placed in the rubber hose sleeve, the cover plate 2 and the first anti-collision sleeve 1 are first connected together by the snap-fitting piece, and while closing, the first hollow sealing ring 5 and the second hollow sealing ring 6 are fitted together. In this process, the first hollow sealing ring 5 and the second hollow sealing ring 6 are squeezed against each other, and while squeezing, the buffer spring 12 is compressed by the buffer frame 11, and the first hollow sealing ring 5 and the second hollow sealing ring 6 on the sealing plate are pushed in the opposite direction to fit together. The resisting force prevents the first hollow sealing ring 5 and the second hollow sealing ring 6 from deforming and generating gaps, thereby ensuring the sealing performance during long-term use.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An engine spark plug installation anti-collision device, the spark plug is located inside the anti-collision device, characterized in that: It comprises a first anti-collision sleeve (1) and a cover plate (2), wherein one end of the first anti-collision sleeve (1) is movably connected to a second anti-collision sleeve (3) via a thread, the cover plate (2) is movably connected to an end of the first anti-collision sleeve (1) away from the second anti-collision sleeve (3) via a snap-fitting member, and a sealing assembly is fixedly connected to the bottom wall of the cover plate (2); The sealing assembly comprises a contact sealing ring (4), a first hollow sealing ring (5), a second hollow sealing ring (6) and a plurality of buffer mechanisms, wherein the plurality of buffer mechanisms are fixedly connected to an end of the cover plate (2) away from the first anti-collision member, the contact sealing ring (4) is fixedly connected to an end of the plurality of buffer mechanisms away from the cover plate (2), and a guide rail (7) is provided on the contact sealing ring (4), a fixing ring (8) is fixedly connected inside the guide rail (7), the first hollow sealing ring (5) is fixedly connected to an end of the fixing ring (8) away from the first contact sealing ring (4), and the second hollow sealing ring (6) is fixedly connected to an end of the first anti-collision sleeve (1) away from the second anti-collision sleeve (3).

2. The engine spark plug installation anti-collision device according to claim 1, characterized in that: The buffer mechanism comprises a hollow barrel (9), a hydraulic rod (10), a buffer frame (11) and an elastic member, wherein the hollow barrel (9) is fixedly connected to one end of the cover plate (2) away from the first anti-collision sleeve (1), the hydraulic rod (10) is fixedly connected to the top wall of the hollow barrel (9), the buffer frame (11) is fixedly connected to the telescopic end of the hydraulic rod (10), and one end of the buffer frame (11) away from the hydraulic rod (10) is fixedly connected to the bottom wall of the abutting sealing ring (4), the elastic member is sleeved on the hydraulic rod (10), one end of the elastic member is fixedly connected to the top wall of the hollow barrel (9), and one end of the elastic member away from the hollow barrel (9) is fixedly connected to the bottom wall of the buffer frame (11).

3. The engine spark plug installation anti-collision device according to claim 2, characterized in that: The elastic member is a buffer spring (12), which is sleeved on the hydraulic rod (10), one end of the buffer spring (12) is fixedly connected to the top wall of the hollow barrel (9), and the end of the buffer spring (12) away from the hollow barrel (9) is fixedly connected to the bottom wall of the buffer frame (11).

4. The engine spark plug installation anti-collision device according to claim 3, characterized in that: The outer surface of the first anti-collision sleeve (1) is connected to a limiting strip (13), and the limiting strip (13) is in the shape of an annular protrusion.

5. The engine spark plug installation anti-collision device according to claim 4, characterized in that: The thread provided on the first anti-collision sleeve (1) matches the thread provided on the second anti-collision sleeve (3).

6. The engine spark plug installation anti-collision device according to claim 5, characterized in that: The outer periphery of the second anti-collision sleeve (3) has a friction portion.

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