Micro-motion type gasoline engine electric spark igniter and using method thereof
By designing a micro-motion gasoline engine spark igniter with a disassembly and assembly mechanism and an automatic detection mechanism, the problems of inconvenient traditional spark plug disassembly and assembly and difficulty in observing the electrode condition have been solved. This has enabled quick disassembly and assembly and automatic detection, improving maintenance efficiency and extending the service life of the electrode.
Patent Information
- Application Number
- CN202511870626.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional spark plugs are inconvenient to install and replace, and it is not easy to observe the condition of the electrodes, making the maintenance process cumbersome and time-consuming.
A micro-motion gasoline engine electric spark igniter was designed, which includes a disassembly and assembly mechanism and an automatic detection mechanism. Through the cooperation of a threaded rod and a rotating ring, the spark plug can be quickly disassembled and assembled, and the electrode status can be automatically detected.
It enables quick installation and removal of spark plugs and automatic detection of electrode status, improving maintenance efficiency and user comfort, and extending the service life of the electrodes.
Smart Images

Figure CN121618320A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electric spark igniter technology, specifically to a micro-motion gasoline engine electric spark igniter and its usage method. Background Technology
[0002] Internal combustion engines include spark plugs for triggering combustion that drives the engine pistons and requires a spark to ignite compressed fuel. Traditionally, an ignition coil converts the low voltage of the battery into the high voltage required to generate an electric spark in the spark plug to ignite the fuel. What all spark plugs have in common is that they are arranged to fit within a recess in the cylinder head that pierces the sidewall of the combustion chamber, allowing the ignition terminal to contact the interior of the combustion cylinder. Direct ignition systems, where the ignition coil is directly mounted on each spark plug, are known to be superior because they eliminate the need for spark plug leads, reduce leakage current, and make ignition timing control easier.
[0003] However, installing and replacing spark plugs for car ignition is extremely inconvenient. If the spark plug electrodes become corroded and shortened after prolonged use, replacement is necessary. This requires manual labor using long tools to slowly unscrew the spark plug from the cylinder and then screw in a new one. This process is not only extremely time-consuming and labor-intensive, but also makes it difficult to easily assess the condition of the spark plug electrodes during maintenance, requiring them to be completely removed for inspection, which is quite troublesome. Summary of the Invention
[0004] To address the aforementioned problems, this invention provides a micro-motion gasoline engine electric spark igniter.
[0005] This invention adopts the following technical solution: a micro-motion gasoline engine spark igniter, comprising a fixed sleeve and a threaded rod rotatably disposed within the fixed sleeve. A stop block is fixedly connected to one end of the threaded rod extending to the upper side of the fixed sleeve. A lifting plug block is fixedly connected to the bottom end of the threaded rod. A spark plug body is installed within the lifting plug block. An upper electrode and a lower electrode are provided at the bottom end of the spark plug body. A rotating ring is rotatably disposed on the outer wall of the fixed sleeve. The invention also includes:
[0006] The disassembly and assembly mechanism facilitates the disassembly and assembly of the spark plug body, and the disassembly and assembly mechanism is disposed within the fixed sleeve;
[0007] It also features an automatic detection mechanism that can detect the condition of the lower electrode without disassembling the spark plug body.
[0008] As a further description of the above technical solution: the disassembly and assembly mechanism includes a limiting slot, which is opened vertically on the outer wall of the fixed sleeve. A threaded ring is threadedly connected to the outer wall of the threaded rotating rod. A connecting rod is fixedly connected between the threaded ring and the rotating ring. A limiting rod is slidably arranged vertically inside the limiting slot. A counterweight is fixedly connected to the limiting rod. A lifting rod is fixedly connected to the bottom end of the counterweight. A sliding block is sleeved on the outer side of the bottom end of the lifting rod. A return spring is fixedly connected between the end of the sliding block away from the fixed sleeve and the rotating ring. A connecting spring is fixedly connected between the bottom end of the lifting rod and the sliding block. A connecting pull rope is connected to the bottom end of the lifting rod. A resistance frame is fixedly connected to one end of the sliding block.
[0009] As a further description of the above technical solution: the automatic detection mechanism includes a connecting rope, and a push frame is fixedly connected to the end of the connecting rope away from the lifting rod. The push frame is horizontally slidably disposed in the lifting block. The push frame abuts against the lower electrode plate. A fixing rod is provided at the end of the lower electrode plate away from the push frame. The fixing rod is fixedly connected to the bottom end of the spark plug body.
[0010] As a further description of the above technical solution: a non-Newtonian fluid is provided on the bottom side of the resistance frame inside the rotating ring.
[0011] As a further description of the above technical solution: the limiting slots are arranged in a ring with equal spacing.
[0012] As a further description of the above technical solution: the rotating ring can only rotate horizontally around the fixed sleeve.
[0013] As a further description of the above technical solution: the upper side of the push frame near the lower electrode plate is provided with a pressing slope.
[0014] As a further description of the above technical solution: the fixing rod is made of a high-temperature resistant and non-conductive material.
[0015] Furthermore, the present invention adopts the following technical solution: a method for using a micro-motion gasoline engine electric spark igniter, comprising the following steps:
[0016] S1. When installing the spark plug body, fix the spark plug body inside the lifting block, then rotate the counterweight block so that the lower electrode plate abuts against the push frame, then release the counterweight block so that the limit rod is inserted into the limit slot to complete the installation.
[0017] S2. Press the lower electrode towards the fixing rod. This allows the lower electrode to automatically change the discharge part, enabling the new part to continuously discharge, reducing the replacement frequency and extending the service life.
[0018] S3. When the vehicle moves, the lifting rod, connecting rope and push frame will shake due to inertia, which can accelerate the detachment of the corroded area of the lower electrode and prevent the driver's starting operation from being affected when the lower electrode is severely corroded.
[0019] This invention provides an improved micro-motion gasoline engine electric spark igniter and its usage method, which has the following improvements and advantages compared with the prior art:
[0020] Firstly, due to the design of the disassembly and assembly mechanism, when the spark plug body is disassembled or assembled, only the counterweight needs to be pulled and rotated, making disassembly and assembly quick and convenient. Manual disassembly does not require reaching inside, thus improving efficiency. After the spark plug body has been used for a long time, if the corrosion at the junction of the lower electrode and the upper electrode is severe, the lower electrode can automatically replace the discharge position. During subsequent maintenance, the staff can quickly confirm the usage status of each spark plug body without having to lift the car and remove the spark plug body for inspection, thus improving maintenance efficiency.
[0021] Secondly, due to inertia, the lifting rod, connecting rope and push frame will shake, which can accelerate the detachment of the corroded area of the lower electrode and improve the comfort of use. The non-Newtonian fluid is designed to prevent the vehicle from shaking too violently, which would cause the push frame to have too great an impact force on the lower electrode. At the same time as the test, it also protects the lower electrode.
[0022] In summary, due to the design of the disassembly and assembly mechanism, when the spark plug body is disassembled or assembled, only the counterweight needs to be pulled and rotated, making disassembly and assembly quick and convenient. Manual disassembly is not required, improving efficiency. After prolonged use, if severe corrosion occurs at the junction of the lower and upper electrodes, the lower electrode can automatically replace the discharge point. During subsequent maintenance, staff can quickly confirm the condition of each spark plug body without needing to lift the vehicle and remove the spark plug body for inspection, further improving maintenance efficiency. Furthermore, due to inertia, the lifting rod, connecting rope, and push frame will shake, accelerating the detachment of the corroded area of the lower electrode and improving user comfort. The inclusion of a non-Newtonian fluid prevents excessive vehicle shaking, which could cause excessive impact force from the push frame on the lower electrode, thus protecting it during inspection. Attached Figure Description
[0023] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0024] Figure 1 This is a schematic diagram of the structure of the present invention;
[0025] Figure 2 This is a schematic diagram of the structure of the automatic detection mechanism provided in an embodiment of the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of the threaded rod provided in an embodiment of the present invention;
[0027] Figure 4 A perspective sectional view of the fixing sleeve provided in an embodiment of the present invention;
[0028] Figure 5 This is a schematic diagram of the lifting rod provided in an embodiment of the present invention;
[0029] Figure 6 for Figure 4 Enlarged view of point A in the middle;
[0030] Figure 7 for Figure 4 Enlarged view of point B in the middle.
[0031] In the diagram: 1. Fixed sleeve; 2. Stop block; 3. Rotating ring; 4. Disassembly and assembly mechanism; 41. Limiting slot; 42. Threaded ring; 43. Connecting rod; 44. Lifting insert; 45. Counterweight block; 46. Limiting rod; 47. Sliding block; 48. Return spring; 49. Lifting rod; 410. Resistance frame; 5. Automatic detection mechanism; 51. Connecting rope; 52. Push frame; 53. Fixed rod; 54. Extrusion slope; 6. Threaded rotating rod; 7. Spark plug body; 8. Upper electrode plate; 9. Lower electrode plate. Detailed Implementation
[0032] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0033] Please see Figure 1 - Figure 7 This invention provides a technical solution: a micro-motion gasoline engine spark igniter, comprising a fixed sleeve 1 and a threaded rod 6 rotatably disposed within the fixed sleeve 1. A stop block 2 is fixedly connected to one end of the threaded rod 6 extending to the upper side of the fixed sleeve 1. A lifting insert block 44 is fixedly connected to the bottom end of the threaded rod 6. A spark plug body 7 is installed inside the lifting insert block 44. An upper electrode plate 8 and a lower electrode plate 9 are provided at the bottom end of the spark plug body 7. A rotating ring 3 is rotatably disposed on the outer wall of the fixed sleeve 1. The invention also includes:
[0034] The disassembly and assembly mechanism 4 facilitates the disassembly and assembly of the spark plug body 7. The disassembly and assembly mechanism 4 is located inside the fixing sleeve 1.
[0035] And the automatic detection mechanism 5 can detect the state of the lower electrode 9 without disassembling the spark plug body 7.
[0036] Specifically, due to the design of the disassembly and assembly mechanism 4, when the spark plug body 7 is disassembled or assembled, only the counterweight block 45 needs to be pulled and rotated. Disassembly and assembly are quick and convenient, and manual disassembly is not required, thus improving efficiency. After the spark plug body 7 has been used for a long time, if the lower electrode 9 and the upper electrode 8 are severely corroded, the lower electrode 9 can automatically replace the discharge part. During subsequent maintenance, the staff can quickly confirm the usage status of each spark plug body 7 without having to lift the car and remove the spark plug body 7 for inspection, thus improving maintenance efficiency. Furthermore, due to inertia, the lifting rod 49, the connecting rope 51, and the push frame 52 will shake, which can accelerate the detachment of the corroded area of the lower electrode 9 and improve the comfort of use. The non-Newtonian fluid is provided to prevent the vehicle from shaking too violently, which would cause the push frame 52 to have an excessive impact force on the lower electrode 9. While detecting, it also protects the lower electrode 9.
[0037] In another embodiment of the present invention, the disassembly and assembly mechanism 4 includes a limiting slot 41, which is opened vertically on the outer wall of the fixed sleeve 1. A threaded ring 42 is threadedly connected to the outer wall of the threaded rotating rod 6. A connecting rod 43 is fixedly connected between the threaded ring 42 and the rotating ring 3. A limiting rod 46 is slidably arranged vertically inside the limiting slot 41. A counterweight 45 is fixedly connected to the limiting rod 46. A lifting rod 49 is fixedly connected to the bottom end of the counterweight 45. A sliding block 47 is sleeved on the outer side of the bottom end of the lifting rod 49. A return spring 48 is fixedly connected between the end of the sliding block 47 away from the fixed sleeve 1 and the rotating ring 3. A connecting spring is fixedly connected between the bottom end of the lifting rod 49 and the sliding block 47. A connecting pull rope 51 is connected to the bottom end of the lifting rod 49. A resistance frame 410 is fixedly connected to one end of the sliding block 47.
[0038] The bottom side of the resistance frame 410 is located inside the rotating ring 3 and contains a non-Newtonian fluid.
[0039] The limiting slots 41 are arranged in a ring with equal spacing.
[0040] The rotating ring 3 can only rotate horizontally around the fixed sleeve 1.
[0041] Specifically, due to the design of the disassembly and assembly mechanism 4, when the spark plug body 7 is disassembled or assembled, it is only necessary to pull and rotate the counterweight 45. Disassembly and assembly are quick and convenient, and manual disassembly is not required, thus improving efficiency. After the spark plug body 7 has been used for a long time, if the corrosion at the joint between the lower electrode 9 and the upper electrode 8 is severe, the lower electrode 9 can automatically replace the discharge part. During subsequent maintenance, the staff can quickly confirm the usage status of each spark plug body 7.
[0042] In another embodiment of the present invention, the automatic detection mechanism 5 includes a connecting pull rope 51. A push frame 52 is fixedly connected to one end of the connecting pull rope 51 away from the lifting rod 49. The push frame 52 is horizontally slidably disposed in the lifting plug 44. The push frame 52 abuts against the lower electrode plate 9. A fixing rod 53 is provided at one end of the lower electrode plate 9 away from the push frame 52. The fixing rod 53 is fixedly connected to the bottom end of the spark plug body 7.
[0043] An extrusion slope 54 is provided on the upper side of the pusher frame 52 near the lower electrode plate 9.
[0044] The fixing rod 53 is made of a high-temperature resistant and non-conductive material.
[0045] Specifically, due to inertia, the lifting rod 49, the connecting rope 51, and the push frame 52 will shake, which can accelerate the detachment of the corroded area of the lower electrode 9 and improve the comfort of use. The non-Newtonian fluid is provided to prevent the vehicle from shaking too violently, which would cause the push frame 52 to have an excessive impact force on the lower electrode 9. At the same time as the detection, it also plays a protective role for the lower electrode 9.
[0046] Working principle: When the spark plug body 7 is installed, it is fixed inside the lifting block 44. Then, the counterweight 45 is rotated, which causes the lifting rod 49 and the rotating ring 3 to rotate together around the fixed sleeve 1. The rotating ring 3 causes the connecting rod 43 and the threaded ring 42 to rotate. Through the cooperation of the threaded ring 42 and the threaded rotating rod 6, the threaded rotating rod 6 will move downward. Then, the threaded rotating rod 6 will cause the lifting block 44 and the spark plug body 7 to move downward together. Due to the compression mechanism... The inclined plane 54 allows the lower electrode 9 to move down easily. Then, due to the connecting spring on the lower side of the lifting rod 49, the lifting rod 49 moves up, and the connecting rope 51 is pulled upward, so that the lower electrode 9 and the push frame 52 are pressed together. Then, the counterweight 45 is released, so that the limit rod 46 is inserted into the limit slot 41 to complete the installation. The same applies to disassembly. This allows the spark plug body 7 to be moved up into the fixed sleeve 1 without the need for manual insertion. It should be noted that the outer wall of the fixed sleeve 1 is provided with an openable door panel.
[0047] When the counterweight 45 is released, after prolonged use of the spark plug body 7, if the joint between the lower electrode 9 and the upper electrode 8 is severely corroded, the length of the end of the lower electrode 9 that contacts the fixing rod 53 will become shorter. This allows the pusher 52 to press the lower electrode 9 towards the fixing rod 53, enabling the lower electrode 9 to automatically change the discharge position. This allows the new part to continue discharging, reducing the frequency of replacement and extending the service life. Furthermore, when the pusher 52 and the connecting rope 51 move, the upper push of the spring at the lower end of the lifting rod 49 causes the counterweight 45 to move upward. This allows the staff to quickly confirm the usage status of each spark plug body 7 during subsequent maintenance, eliminating the need to lift the car and remove the spark plug body 7 for inspection, thus improving maintenance efficiency.
[0048] Furthermore, even when the end of the lower electrode 9 located directly below the upper electrode 8 is excessively corroded, this area of the lower electrode 9 still retains strength and does not shorten. When the vehicle moves, due to inertia, the lifting rod 49, connecting rope 51, and push frame 52 will shake, which can accelerate the detachment of the corroded area of the lower electrode 9 and prevent the lower electrode 9 from being severely corroded, thus affecting the driver's ignition operation and improving the user's comfort. The non-Newtonian fluid is provided to prevent the vehicle from shaking too violently, causing the push frame 52 to have an excessive impact force on the lower electrode 9. While detecting, it also protects the lower electrode 9.
[0049] A method for using a micro-motion gasoline engine spark igniter includes the following steps:
[0050] S1. When the spark plug body 7 is being installed, the spark plug body 7 is fixed inside the lifting plug 44. Then the counterweight 45 is rotated, and the lower electrode 9 is pressed against the push frame 52. Then the counterweight 45 is released, so that the limit rod 46 is inserted into the limit slot 41 to complete the installation.
[0051] S2. Press the lower electrode 9 toward the fixing rod 53. This allows the lower electrode 9 to automatically change the discharge part, enabling the new part to continuously discharge, reducing the replacement frequency and extending the service life.
[0052] S3. When the vehicle moves, due to inertia, the lifting rod 49, the connecting rope 51 and the push frame 52 will shake, which can accelerate the detachment of the corroded area of the lower electrode 9 and prevent the lower electrode 9 from being severely corroded, thus affecting the owner's ignition operation.
[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A micro-motion gasoline engine electric spark igniter, comprising a fixed sleeve (1) and a threaded rotating rod (6) rotatingly arranged in the fixed sleeve (1), one end of the threaded rotating rod (6) extending to the upper side of the fixed sleeve (1) is fixedly connected with a stop block (2), the bottom end of the threaded rotating rod (6) is fixedly connected with a lifting plug (44), the lifting plug (44) is internally mounted with a spark plug body (7), the bottom end of the spark plug body (7) is provided with an upper pole piece (8) and a lower pole piece (9), and the outer wall of the fixed sleeve (1) is rotatingly arranged with a rotating ring (3), characterized in that, Also include: The dismounting mechanism (4) can facilitate the dismounting of the spark plug body (7), and the dismounting mechanism (4) is arranged in the fixed sleeve (1); And the automatic detection mechanism (5) can detect the state of the lower electrode piece (9) without dismounting the spark plug body (7).
2. A micro-jet gasoline engine spark igniter according to claim 1, characterized in that: The dismounting mechanism (4) includes a limiting slot (41) which is opened on the outer wall of the fixed sleeve (1), a threaded ring (42) is threadedly connected to the outer wall of the threaded rotating rod (6), a connecting rod (43) is fixedly connected between the threaded ring (42) and the rotating ring (3), a limiting rod (46) is slidably arranged in the limiting slot (41), a counterweight block (45) is fixedly connected to the limiting rod (46), a lifting rod (49) is fixedly connected to the bottom end of the counterweight block (45), a sliding block (47) is arranged on the outer side of the bottom end of the lifting rod (49), a return spring (48) is fixedly connected between the end of the sliding block (47) away from the fixed sleeve (1) and the rotating ring (3), a connecting spring is fixedly connected between the bottom end of the lifting rod (49) and the sliding block (47), a connecting pull rope (51) is connected to the bottom end of the lifting rod (49), and a resistance frame (410) is fixedly connected to one end of the sliding block (47).
3. A micro-jet gasoline engine spark igniter according to claim 2, characterized in that: The automatic detection mechanism (5) includes a connecting pull rope (51), a pushing frame (52) is fixedly connected to the end of the connecting pull rope (51) away from the lifting rod (49), the pushing frame (52) is horizontally slidably arranged in the lifting plug (44), the lower electrode piece (9) abuts against the pushing frame (52), and a fixed rod (53) is arranged at the end of the lower electrode piece (9) away from the pushing frame (52).
4. A micro-jet gasoline engine spark igniter according to claim 2, characterized in that: The resistance frame (410) is arranged in the rotating ring (3) and is filled with a non-Newtonian fluid.
5. A micro-jet gasoline engine spark igniter according to claim 2, characterized in that: The limiting slot (41) is annular and arranged at equal intervals.
6. A micro-jet gasoline engine spark igniter according to claim 2, characterized in that: The rotating ring (3) can only rotate horizontally around the fixed sleeve (1).
7. A micro-jet gasoline engine spark igniter according to claim 3, characterized in that: The end of the pushing frame (52) close to the lower electrode piece (9) is provided with an extrusion inclined surface (54) on the upper side.
8. A micro-jet gasoline engine spark igniter according to claim 3, characterized in that: The fixed rod (53) is made of a material that is resistant to high temperature and does not conduct electricity.
9. A method of using a micro-jet gasoline engine spark plug, based on the micro-jet gasoline engine spark plug of claim 8, characterized in that: The method comprises the following steps: S1, when the spark plug body (7) is installed, the spark plug body (7) is fixedly connected to the inside of the lifting plug (44), then the counterweight block (45) is rotated, the lower electrode piece (9) abuts against the pushing frame (52), then the counterweight block (45) is loosened, the limiting rod (46) is inserted into the limiting slot (41), and the installation is completed; S2, the lower electrode piece (9) is extruded towards the fixed rod (53), which enables the lower electrode piece (9) to automatically change the discharge position, enables the new position to continuously discharge, reduces the replacement frequency, and prolongs the service life; S3, when the vehicle moves, the lifting rod (49), the connecting pull rope (51) and the pushing frame (52) will shake due to inertia, which can accelerate the separation of the corroded area of the lower electrode piece (9), and prevent the lower electrode piece (9) from being seriously corroded, thereby affecting the ignition operation of the vehicle owner.