Laser ignition device with ignition state detection function

Abstract

The laser ignition device with the ignition state detection function comprises a clamping plate, a supporting rod and an adjusting mechanism, the adjusting mechanism is clamped to the supporting rod, an inserting rod is fixedly connected to the right side of the clamping plate, the clamping plate is inserted into the adjusting mechanism through the inserting rod, a fixing block is attached to an inner cavity of the clamping plate, and the fixing block is fixedly connected to the right side of the clamping plate. The upper side and the lower side of the fixing block are fixedly connected with connecting plates, the front sides of the two connecting plates are jointly and fixedly connected with a mounting plate, a swing mechanism is arranged on the left side of the mounting plate, and two limiting mechanisms are arranged on the rear side of the mounting plate; through mutual cooperation of the small motor, the arc-shaped sliding plate, the swing plate, the insertion block, a transmission rod, a screw rod, a hinge plate, a middle plate, a fitting plate, an arc-shaped toothed plate and the like, multi-directional pollution detection can be quickly performed on an optical window when laser path detection is needed, the detection range is widened, and the detection efficiency is improved. And the situation that stains appear on the surface of the optical window and are not detected is avoided.

Description

Technical Field

[0001] This invention relates to the field of laser ignition detection technology, specifically to a laser ignition device with ignition status detection function. Background Technology

[0002] Laser ignition is an advanced ignition technology that uses a high-energy-density laser beam to ignite combustible mixtures (such as fuel-air mixtures) instead of traditional electric sparks (spark plugs) or hot surfaces. By eliminating electrodes and achieving precise control of the ignition position, it offers great potential for improving combustion efficiency, reducing emissions, and adapting to new fuels, and is one of the important development directions for future ignition technologies.

[0003] For laser ignition devices, detecting and diagnosing the ignition status is not only necessary but also a key aspect of their reliable and safe application in practical systems. This differs significantly from traditional spark plugs, where ignition status detection is typically simpler. Laser ignition systems, however, require more complex and precise detection methods. For example, optical path integrity detection involves emitting a low-power guide laser beam before ignition. This beam travels through the entire optical path to the combustion chamber. A sensor on the other side detects the transmittance or scattering of this guide laser beam to determine if the optical window is clean and the optical path is aligned. If the transmittance is below a safe value, the window is dirty, and the system needs to initiate a cleaning procedure or trigger an alarm.

[0004] During the laser path detection described above, only a low-power guiding laser can be emitted at a fixed angle, reducing the detection range and making it impossible to perform multi-directional contamination detection on the optical window. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laser ignition device with ignition status detection function includes a clamping plate, a support rod, and an adjustment mechanism. The adjustment mechanism is snapped onto the support rod. A plug rod is fixedly connected to the right side of the clamping plate. The clamping plate is inserted into the adjustment mechanism via the plug rod. A fixing block is fitted into the inner cavity of the clamping plate. Connecting plates are fixedly connected to both the upper and lower sides of the fixing block. A mounting plate is fixedly connected to the front side of both connecting plates. A swing mechanism is provided on the left side of the mounting plate, and two limiting mechanisms are provided on the rear side of the mounting plate.

[0006] Preferably, the swing mechanism includes a swing plate, two arc-shaped sliding plates are fixedly connected to the front side of the swing plate, a center plate is fixedly connected between the two arc-shaped sliding plates, a small motor is installed on the top of the center plate, the power output shaft of the small motor passes through the center plate and is fixedly connected to a transmission rod.

[0007] Preferably, a helical rod is fixedly connected to the bottom end of the transmission rod, and two hinge plates are sleeved on the outer side of the helical rod. The rear sides of the two hinge plates are fixedly connected to the swing plate, and the left sides of the two arc-shaped sliding plates are slidably connected to a bonding plate. An arc-shaped toothed plate is fixedly connected to the center of the rear side of the bonding plate.

[0008] Preferably, the arc-shaped toothed plate and the spiral rod are meshed with each other, a laser ignition device is installed on the front side of the bonding plate, an optical window is installed on the front side of the laser ignition device, and two plugs are fixedly connected to the rear side of the swing plate, and the two plugs are arranged symmetrically above and below.

[0009] Preferably, the limiting mechanism includes a limiting box, a first limiting plate is fixedly connected to the top of the inner cavity of the limiting box near the rear side, and a second limiting plate is fixedly connected to the top of the inner cavity of the limiting box near the center. The first limiting plate has a first groove on its front side, and the second limiting plate has a second groove on its rear side.

[0010] Preferably, a spring is fixedly connected to the rear side of the inner cavity of the limiting box, a base plate is fixedly connected to the front end of the spring, a fixing plate is fixedly connected to the top of the base plate, and two elastic clamps are fixedly connected to the left side of the fixing plate. The two elastic clamps are symmetrically arranged, and both sides of the fixing plate are in contact with the inner sidewall of the limiting box.

[0011] Preferably, a crank is hinged to the top of the fixed plate, and a fitting rod is fixedly connected to the top of the crank near the rear side. The fitting rod fits into the second groove, and the insert is inserted between the two elastic clamps.

[0012] Preferably, a movable plate is slidably connected to the left side of the mounting plate, a magnet is fixedly connected to the top of the mounting plate, the movable plate is magnetically connected to the magnet, a lifting plate is fixedly connected to the left side of the movable plate, a welding plate is fixedly connected to the right side of the lifting plate near the front, a photoelectric sensor is fixedly connected to the right side of the welding plate, an L-shaped fixing plate is fixedly connected to the bottom of the welding plate, a cleaning plate is fixedly connected to the other side of the L-shaped fixing plate, and a locking rod is fixedly connected to the left side of the mounting plate near the center.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention enables the laser ignition device to be quickly inserted into the inner cavity of the limiting box through the cooperation between components such as the component limiting box, elastic clamp, second limiting plate, first limiting plate, and crank, thereby achieving the purpose of rapid detection.

[0014] This invention, through the cooperation of components such as a small motor, an arc-shaped sliding plate, a swing plate, a plug, a transmission rod, a spiral rod, a hinge plate, a center plate, a bonding plate, and an arc-shaped toothed plate, enables rapid multi-directional contamination detection of the optical window when laser path detection is required. This improves the detection range and avoids situations where stains on the surface of the optical window go undetected. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the component connecting plate structure of the present invention; Figure 3 This is a rear view of the component connecting plate structure of the present invention; Figure 4 This is a schematic diagram of the clamping plate structure of the component of the present invention; Figure 5 This is a schematic diagram of the swing plate structure of the component of the present invention; Figure 6 This is a rear view of the swing plate structure of the component of the present invention; Figure 7 This is a schematic diagram of the component limiting box structure of the present invention; Figure 8 This is a bottom view of the component fixing plate structure of the present invention; Figure 9 This is a top view of the component limiting box structure of the present invention; Figure 10 This is a schematic diagram of the arc-shaped toothed plate structure of the component of the present invention; Figure 11 This is a rear view of the arc-shaped toothed plate structure of the component of the present invention.

[0016] The following are the labeling elements in the diagram: 1. Clamping plate; 2. Insert rod; 3. Fixing block; 4. Connecting plate; 5. Mounting plate; 6. Lifting plate; 7. L-shaped fixing plate; 8. Cleaning plate; 9. Laser ignition device; 10. Support rod; 11. Adjustment mechanism; 12. Welding plate; 13. Photoelectric sensor; 14. Limiting box; 15. First limiting plate; 16. Second limiting plate; 17. Elastic clamping plate; 18. Base plate; 19. Spring; 20. Fixing plate; 21. Insert block; 22. Swinging plate; 23. Small motor; 24. Arc-shaped sliding plate; 25. Center plate; 26. Transmission rod; 27. Helical rod; 28. Hinge plate; 29. ​​Adhesive plate; 30. Arc-shaped toothed plate; 31. Crank. Detailed Implementation

[0017] Please see Figure 1-11 The present invention provides a technical solution: A laser ignition device with ignition status detection function includes a clamping plate 1, a support rod 10, and an adjustment mechanism 11. The adjustment mechanism 11 is snapped onto the support rod 10. A plug rod 2 is fixedly connected to the right side of the clamping plate 1. The clamping plate 1 is inserted into the adjustment mechanism 11 through the plug rod 2. A fixing block 3 is attached to the inner cavity of the clamping plate 1. Connecting plates 4 are fixedly connected to both the upper and lower sides of the fixing block 3. A mounting plate 5 is fixedly connected to the front side of the two connecting plates 4. A swing mechanism is provided on the left side of the mounting plate 5, and two limiting mechanisms are provided on the rear side of the mounting plate 5.

[0018] The swing mechanism includes a swing plate 22. Two arc-shaped sliding plates 24 are fixedly connected to the front side of the swing plate 22. A middle plate 25 is fixedly connected between the two arc-shaped sliding plates 24. A small motor 23 is installed on the top of the middle plate 25. The power output shaft of the small motor 23 passes through the middle plate 25 and is fixedly connected to a transmission rod 26. A spiral rod 27 is fixedly connected to the bottom end of the transmission rod 26. Two hinge plates 28 are sleeved on the outside of the spiral rod 27. The rear sides of the two hinge plates 28 are fixedly connected to the swing plate 22. A bonding plate 29 is slidably connected to the left side of the two arc-shaped sliding plates 24. An arc-shaped toothed plate 30 is fixedly connected to the center of the rear side of the bonding plate 29. The arc-shaped toothed plate 30 and the spiral rod 27 are mutually meshed. A laser ignition device 9 is installed on the front side of the bonding plate 29. An optical window is installed on the front side of the laser ignition device 9. Two inserts 21 are fixedly connected to the rear side of the swing plate 22. The two inserts 21 are arranged symmetrically at the top and bottom. When the swing plate 22 is fixed, the small motor 23 can be started. The small motor 23 can drive the transmission rod 26 to rotate through the power output shaft. When the transmission rod 26 rotates, it can drive the spiral rod 27 to rotate. When the spiral rod 27 rotates, it can engage with the arc-shaped toothed plate 30, thereby driving the arc-shaped toothed plate 30 to move in an arc. The arc-shaped toothed plate 30 is slidably connected to the arc-shaped slide plate 24 through the bonding plate 29, which can limit the movement trajectory. When the bonding plate 29 swings in an arc, it can drive the laser ignition device 9 to swing synchronously, thereby realizing angle adjustment. Subsequently, the staff lowers the lifting plate 6 and attaches it with the locking rod to complete the position fixation of the lifting plate 6. The laser ignition device 9 emits a guiding laser and receives it with different photoelectric sensors 13 to determine if there is an abnormality in the optical path. When there is an abnormality, the optical window can be cleaned through the cleaning plate 8.

[0019] The limiting mechanism includes a limiting box 14. A first limiting plate 15 is fixedly connected to the top of the inner cavity of the limiting box 14 near the rear side, and a second limiting plate 16 is fixedly connected to the top of the inner cavity of the limiting box 14 near the center. A first groove is formed on the front side of the first limiting plate 15, and a second groove is formed on the rear side of the second limiting plate 16. A spring 19 is fixedly connected to the rear side of the inner cavity of the limiting box 14. A base plate 18 is fixedly connected to the front end of the spring 19. A fixing plate 20 is fixedly connected to the top of the base plate 18. Two elastic clamps 17 are fixedly connected to the left side of the fixing plate 20. The two elastic clamps 17 are symmetrically arranged. Both sides of the fixing plate 20 are in contact with the inner wall of the limiting box 14. A crank 31 is hinged to the top of the 20. A fitting rod is fixedly connected to the top of the crank 31 near the rear side. The fitting rod fits into the second groove. The insert block 21 is inserted between two elastic clamping plates 17. A movable plate is slidably connected to the left side of the mounting plate 5. A magnet is fixedly connected to the top of the mounting plate 5. The movable plate is magnetically connected to the magnet. A lifting plate 6 is fixedly connected to the left side of the movable plate. A welding plate 12 is fixedly connected to the right side of the lifting plate 6 near the front side. A photoelectric sensor 13 is fixedly connected to the right side of the welding plate 12. An L-shaped fixing plate 7 is fixedly connected to the bottom of the welding plate 12. A cleaning plate 8 is fixedly connected to the other side of the L-shaped fixing plate 7. A locking rod is fixedly connected to the left side of the mounting plate 5 near the center. The worker inserts the insert 21 into the inner cavity of the limiting box 14. When the insert 21 is in contact with the two elastic clamps 17, the two elastic clamps 17 can be in contact with the insert 21. At the same time, the fixing plate 20 moves to the rear and the contacting rod on the crank 31 contacts the second limiting plate 16. Since the surface of the second limiting plate 16 is inclined, the crank 31 can tilt and move and be in contact with the second groove. At this time, the position of the swing plate 22 is limited. When it is necessary to disassemble the swing plate 22, the swing plate 22 can be pressed to drive the fixing plate 20 to move to the rear. At this time, the contacting rod disengages from the second groove and enters the inner cavity of the first groove, turning into an active state, thus completing the disassembly.

[0020] Working principle: First, the operator inserts the insert block 21 into the inner cavity of the limiting box 14. When the insert block 21 is in contact with the two elastic clamps 17, the two elastic clamps 17 can be in contact with the insert block 21. At the same time, the fixing plate 20 moves backward, and the contacting rod on the crank 31 contacts the second limiting plate 16. Since the surface of the second limiting plate 16 is inclined, the crank 31 can tilt and move, and fit with the second groove. At this time, the position of the swing plate 22 is limited. When the swing plate 22 is fixed, the small motor 23 can be started. The small motor 23 can drive the transmission rod 26 to rotate through the power output shaft. When the transmission rod 26 rotates, it can drive the spiral rod 27 to rotate. When the spiral rod 27 rotates, it can mesh with the arc-shaped toothed plate 30, thereby driving the arc-shaped toothed plate 30 to rotate. The device moves in an arc shape. The arc-shaped toothed plate 30 is slidably connected to the arc-shaped sliding plate 24 through the bonding plate 29, which can limit the movement trajectory. When the bonding plate 29 swings in an arc shape, it can drive the laser ignition device 9 to swing synchronously, thereby realizing angle adjustment. Then, the staff lowers the lifting plate 6 and attaches it with the locking rod to fix the position of the lifting plate 6. The laser ignition device 9 emits a guiding laser and receives it with different photoelectric sensors 13 to determine if there is an abnormality in the optical path. When there is an abnormality, the optical window can be cleaned by the cleaning plate 8. When it is necessary to disassemble the swing plate 22, the swing plate 22 can be pressed to drive the fixing plate 20 to move to the rear. At this time, the bonding rod disengages from the second groove and enters the inner cavity of the first groove, turning into an active state, thereby completing the disengagement.

Claims

1. A laser ignition device with ignition status detection function, comprising a clamping plate (1), a support rod (10), and an adjustment mechanism (11), characterized in that: The adjustment mechanism (11) is snapped onto the support rod (10). A plug rod (2) is fixedly connected to the right side of the clamp (1). The clamp (1) is inserted into the adjustment mechanism (11) through the plug rod (2). A fixing block (3) is attached to the inner cavity of the clamp (1). A connecting plate (4) is fixedly connected to both the upper and lower sides of the fixing block (3). An installation plate (5) is fixedly connected to the front side of the two connecting plates (4). A swing mechanism is provided on the left side of the installation plate (5). Two limiting mechanisms are provided on the rear side of the installation plate (5).

2. The laser ignition device with ignition status detection function according to claim 1, characterized in that: The swing mechanism includes a swing plate (22), two arc-shaped sliding plates (24) are fixedly connected to the front side of the swing plate (22), and a middle plate (25) is fixedly connected between the two arc-shaped sliding plates (24). A small motor (23) is installed on the top of the middle plate (25), and the power output shaft of the small motor (23) passes through the middle plate (25) and is fixedly connected to a transmission rod (26).

3. A laser ignition device with ignition status detection function according to claim 2, characterized in that: The bottom end of the transmission rod (26) is fixedly connected to a spiral rod (27). Two hinge plates (28) are sleeved on the outside of the spiral rod (27). The rear sides of the two hinge plates (28) are fixedly connected to the swing plate (22). The left sides of the two arc-shaped sliding plates (24) are slidably connected to a bonding plate (29). An arc-shaped toothed plate (30) is fixedly connected at the center of the rear side of the bonding plate (29).

4. A laser ignition device with ignition status detection function according to claim 3, characterized in that: The arc-shaped toothed plate (30) and the spiral rod (27) are meshed with each other. A laser ignition device (9) is installed on the front side of the bonding plate (29). An optical window is installed on the front side of the laser ignition device (9). Two plugs (21) are fixedly connected to the rear side of the swing plate (22). The two plugs (21) are arranged symmetrically up and down.

5. A laser ignition device with ignition status detection function according to claim 4, characterized in that: The limiting mechanism includes a limiting box (14), a first limiting plate (15) is fixedly connected to the top of the inner cavity of the limiting box (14) near the rear side, and a second limiting plate (16) is fixedly connected to the top of the inner cavity of the limiting box (14) near the center. The first limiting plate (15) has a first groove on its front side and the second limiting plate (16) has a second groove on its rear side.

6. A laser ignition device with ignition status detection function according to claim 5, characterized in that: A spring (19) is fixedly connected to the rear side of the inner cavity of the limiting box (14). A base plate (18) is fixedly connected to the front end of the spring (19). A fixing plate (20) is fixedly connected to the top of the base plate (18). Two elastic clamps (17) are fixedly connected to the left side of the fixing plate (20). The two elastic clamps (17) are symmetrically arranged. The left and right sides of the fixing plate (20) are in contact with the inner wall of the limiting box (14).

7. A laser ignition device with ignition status detection function according to claim 6, characterized in that: The top of the fixed plate (20) is hinged with a crank (31), and a fitting rod is fixedly connected to the top of the crank (31) near the rear side. The fitting rod fits into the second groove, and the insert (21) is inserted between two elastic clamps (17).

8. A laser ignition device with ignition status detection function according to claim 7, wherein a movable plate is slidably connected to the left side of the mounting plate (5), a magnet is fixedly connected to the top of the mounting plate (5), the movable plate is magnetically connected to the magnet, a lifting plate (6) is fixedly connected to the left side of the movable plate, a welding plate (12) is fixedly connected to the right side of the lifting plate (6) near the front, a photoelectric sensor (13) is fixedly connected to the right side of the welding plate (12), an L-shaped fixing plate (7) is fixedly connected to the bottom of the welding plate (12), a cleaning plate (8) is fixedly connected to the other side of the L-shaped fixing plate (7), and a clamping rod is fixedly connected to the left side of the mounting plate (5) near the center.

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