Mechanism for adjusting incident beam of off-axis integral cavity

Abstract

The utility model relates to a mechanism for adjusting an incident beam of an off-axis integral cavity, which belongs to the technical field of optical machine element adjusting equipment and comprises a mounting plate, a height adjusting mechanism is arranged at the top of the mounting plate, and an angle adjusting mechanism is mounted at the top of the height adjusting mechanism. The beneficial effects of the utility model are that through the arrangement of the clamping mechanism, during use, the support plate is installed at the top of the rotating cylinder through a screw, and then the rotating plate is rotated, so that the lead screw drives the limiting block to move, and the mounting rack and the circular ring can be driven to move, and thus the position of the laser collimator can be adaptively adjusted without repeated adjustment; the device is simple and convenient to use, the spring damping frame and the damping spring are adopted at the same time, so that when the device is subjected to external vibration, the vibration can be adaptively buffered, the laser collimator is prevented from shifting or falling off, the laser collimator can be better used, and the laser collimator can be better protected.

Description

Technical Field

[0001] The utility model relates to the technical field of opto-mechanical element adjusting equipment, and particularly relates to a mechanism for adjusting the incident light beam of an off-axis integrating cavity. Background Art

[0002] An off-axis optical system is an optical system in which the optical axis of an aperture does not coincide with the mechanical center of the aperture. Such an optical system with the optical axis of the aperture not coinciding with the mechanical center of the aperture. Note: The principle of using an off-axis optical system is to avoid secondary optical elements, instrument enclosures or sensors from obscuring the main aperture, and to provide ready access to the focus for instrument suites or sensors. The engineering consideration of an off-axis optical system is the increment of image distortion.

[0003] Currently, the off-axis integrating cavity technology is a technology that collects weak energy signals transmitted during each reflection by injecting a laser into an optical resonator and utilizing multiple reflections of the laser between two cavity mirrors, and finally analyzes the information inside the cavity. It is commonly used in laboratory trace gas detection, high-precision reflectivity measurement of high-reflectivity mirrors, and research on isotope absorption spectra. The angle and position of the incident laser directly affect the shape and size of the off-axis light spot. When the shape of the off-axis light spot is the largest circle limited by the lens diameter, the off-axis integrating cavity can achieve the best performance. Thus, it can be seen that the performance (signal intensity, detection limit, noise level, etc.) of the off-axis integrating cavity is significantly affected by the angle and position of the incident laser.

[0004] The incident light beam adjusting device of the off-axis integrating cavity in the prior art still has the following disadvantages. When in use, it often cooperates with a laser collimator. The installation of the laser collimator often relies on a simple mounting bracket. The mounting bracket is installed on the adjusting device through screws. Therefore, every time the laser collimator needs to be adjusted, the mounting bracket needs to be disassembled for use, which is rather inconvenient. At the same time, when the mounting bracket is vibrated, the laser collimator is easily affected by the associated vibration, resulting in the position of the laser collimator shifting or falling off. Summary of the Utility Model

[0005] To solve the problems raised in the above background art, the utility model provides a mechanism for adjusting the incident light beam of an off-axis integrating cavity, which has a clamping mechanism, and is used to solve the problems that when in use, it often cooperates with a laser collimator, the installation of the laser collimator often relies on a simple mounting bracket, the mounting bracket is installed on the adjusting device through screws, so every time the laser collimator needs to be adjusted, the mounting bracket needs to be disassembled for use, which is rather inconvenient, and at the same time, when the mounting bracket is vibrated, the laser collimator is easily affected by the associated vibration, resulting in the position of the laser collimator shifting or falling off.

[0006] The technical solution of the present utility model is: a mechanism for adjusting the incident light beam of an off-axis integral cavity, including a mounting plate, a height adjustment mechanism is provided at the top of the mounting plate, an angle adjustment mechanism is installed at the top of the height adjustment mechanism, a rotation adjustment mechanism is installed at the top of the angle adjustment mechanism, and a clamping mechanism is installed at the top end of the rotation adjustment mechanism;

[0007] The clamping mechanism includes a mounting frame, a support plate, a screw, a rotating plate, a lead screw, a limit block, a mounting bracket, a ring, a spring shock absorber, a shock-absorbing spring and a clamping plate. The lead screw is movably inserted into the inner side wall of the mounting frame. The limit block is movably sleeved on the outside of the lead screw and is clamped with the mounting frame. One end of the lead screw is fixedly connected to the rotating plate. The limit block is fixedly connected to the mounting bracket. The ring is fixedly installed on the outer side wall of one side of the mounting bracket. The spring shock absorber is fixedly installed on the inner wall of the ring. The clamping plate is fixedly connected to the other end of the spring shock absorber. The shock-absorbing spring is movably sleeved on the outside of the spring shock absorber.

[0008] Further, mounting holes are formed inside the mounting plate, and mounting bolts are threadedly installed inside the mounting holes.

[0009] Further, the height adjustment mechanism includes a first threaded rod, a limit spring and a rotating rod. One end of the first threaded rod is threadedly inserted into the inside of the mounting plate. The rotating rod is fixedly installed on the outside of the first threaded rod. The limit spring is movably sleeved on the outside of the first threaded rod, and the top end of the limit spring is clamped with the first threaded rod. A bearing is installed on the outside of one end of the first threaded rod, and the first threaded rod is fixedly connected to the inner ring of the bearing.

[0010] Further, the angle adjustment mechanism includes an adjustment plate, a ball joint, a second threaded rod, a connecting rod, a vertical plate, a connecting shaft and a top plate. The adjustment plate is fixedly installed on the top of the outer ring of the bearing. The vertical plate is fixedly installed on the top of the adjustment plate. One end of the connecting shaft is movably inserted into the inside of the vertical plate. The connecting rod is movably sleeved on the outside of the connecting shaft. The other end of the connecting rod is fixedly connected to the top plate. The second threaded rod is threadedly inserted into the inside of the top plate. The bottom end of the second threaded rod is fixedly connected to the ball joint. The ball joint is clamped with the adjustment plate.

[0011] Further, the rotation adjustment mechanism includes a limit sleeve, a rotating cylinder, a first magnet block and a second magnet block. The second magnet block is embedded in the top of the top plate. The limit sleeve is fixedly installed on the top of the top plate. The rotating cylinder is limit-inserted into the inside of the limit sleeve. The first magnet block is embedded in the bottom of the rotating cylinder. The first magnet block is magnetically adsorbed to the second magnet block.

[0012] Further, the support plate is fixedly installed on the outer side wall of one side of the mounting frame, and the support plate and the rotating cylinder are fixed by a screw.

[0013] The present utility model provides a mechanism for adjusting the incident light beam of an off-axis integrating cavity through improvement. Compared with the prior art, it has the following improvements and advantages:

[0014] By providing a clamping mechanism, during use, the support plate is installed on the top of the rotating cylinder through screws, and then the rotating plate is rotated so that the lead screw drives the limit block to move, and then the mounting frame and the ring can be driven to move, so that the position of the laser collimator can be adaptively adjusted without repeated adjustment, which is relatively simple and convenient. At the same time, a spring shock absorber and shock-absorbing springs are adopted, so that when the device is subjected to external vibration, its vibration can be adaptively buffered, avoiding the laser collimator from shifting or falling off, which is beneficial to the better use of the laser collimator and is beneficial to better protecting the laser collimator. Description of the Drawings

[0015] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a top three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 3 is a three-dimensional structural schematic diagram of the first threaded rod of the present utility model;

[0019] Figure 4 is a sectional three-dimensional structural schematic diagram of the rotation adjustment mechanism of the present utility model;

[0020] Figure 5 is a three-dimensional structural schematic diagram of the clamping mechanism of the present utility model;

[0021] Explanation of the reference numerals in the drawings: 1. mounting plate; 2. mounting bolt; 3. first threaded rod; 5. adjusting plate; 6. clamping ball; 7. second threaded rod; 8. connecting rod; 9. vertical plate; 10. connecting shaft; 11. top plate; 12. limiting sleeve; 13. rotating cylinder; 14. mounting frame; 15. limit block; 16. limiting spring; 17. rotating rod; 18. lead screw; 19. mounting frame; 20. clamping plate; 21. ring; 22. spring shock absorber; 23. shock-absorbing spring; 24. first magnet block; 25. second magnet block. Detailed Embodiments

[0022] The following will be combined with the attached Figures 1 to 5The present utility model will be described in detail. The technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides an improved mechanism for adjusting the incident light beam of an off-axis integrating cavity as follows Figures 1 - 5 As shown in the figure, it includes a mounting plate 1. A height adjustment mechanism is provided at the top of the mounting plate 1. An angle adjustment mechanism is installed at the top of the height adjustment mechanism. A rotation adjustment mechanism is installed at the top of the angle adjustment mechanism. A clamping mechanism is installed at the top end of the rotation adjustment mechanism;

[0024] The clamping mechanism includes a mounting frame 14, a support plate, a screw, a rotating plate, a lead screw 18, a limit block 15, a mounting bracket 19, a ring 21, a spring shock absorber 22, a shock absorber spring 23, and a clamping plate 20. The lead screw 18 is movably inserted into the inner side wall of the mounting frame 14. The limit block 15 is movably sleeved outside the lead screw 18, and the limit block 15 is clamped with the mounting frame 14. One end of the lead screw 18 is fixedly connected to the rotating plate. The limit block 15 is fixedly connected to the mounting bracket 19. The ring 21 is fixedly installed on the outer wall of one side of the mounting bracket 19. The spring shock absorber 22 is fixedly installed on the inner wall of the ring 21. The clamping plate 20 is fixedly connected to the other end of the spring shock absorber 22. The shock absorber spring 23 is movably sleeved outside the spring shock absorber 22. A mounting hole is opened in the mounting plate 1, and a mounting bolt 2 is threadedly installed in the mounting hole. When in use, the mounting plate 1 is installed at a suitable position through the mounting bolt 2. By providing the clamping mechanism, when in use, the support plate is installed on the top of the rotating cylinder 13 through the screw, and then the rotating plate is rotated so that the lead screw 18 drives the limit block 15 to move, and then the mounting bracket 19 and the ring 21 can be driven to move, so that the position of the laser collimator can be adaptively adjusted without repeated adjustment, which is relatively simple and convenient. At the same time, the spring shock absorber 22 and the shock absorber spring 23 are adopted, so that when the device is affected by external vibration, the vibration can be adaptively buffered to prevent the laser collimator from shifting or falling off, which is beneficial to the better use of the laser collimator and is beneficial to better protecting the laser collimator.

[0025] The height adjustment mechanism includes a first threaded rod 3, a limit spring 16 and a rotating rod 17. One end of the first threaded rod 3 is threadedly inserted into the interior of the mounting plate 1. The rotating rod 17 is fixedly installed outside the first threaded rod 3. The limit spring 16 is movably sleeved outside the first threaded rod 3, and the top end of the limit spring 16 is clamped with the first threaded rod 3. A bearing is installed outside one end of the first threaded rod 3, and the first threaded rod 3 is fixedly connected to the inner ring of the bearing. During use, the position of the first threaded rod 3 can be adjusted by rotating the rotating rod 17, so as to adaptively adjust the height of the angle adjustment mechanism.

[0026] The angle adjustment mechanism includes an adjustment plate 5, a ball catch 6, a second threaded rod 7, a connecting rod 8, a vertical plate 9, a connecting shaft 10 and a top plate 11. The adjustment plate 5 is fixedly installed on the top of the outer ring of the bearing. The vertical plate 9 is fixedly installed on the top of the adjustment plate 5. One end of the connecting shaft 10 is movably inserted into the interior of the vertical plate 9. The connecting rod 8 is movably sleeved outside the connecting shaft 10. The other end of the connecting rod 8 is fixedly connected to the top plate 11. The second threaded rod 7 is threadedly inserted into the interior of the top plate 11. The bottom end of the second threaded rod 7 is fixedly connected to the ball catch 6. The ball catch 6 is clamped with the adjustment plate 5. During use, by rotating one side of the second threaded rod 7, the inclination angle of the top plate 11 can be adjusted. At the same time, the other side of the second threaded rod 7 is adjusted adaptively so that the ball catches 6 on both sides are clamped and fixed with the adjustment plate 5. The structure is simple and easy to operate.

[0027] The rotation adjustment mechanism includes a limit sleeve 12, a rotating cylinder 13, a first magnet block 24 and a second magnet block 25. The second magnet block 25 is embedded in the top of the top plate 11. The limit sleeve 12 is fixedly installed on the top of the top plate 11. The rotating cylinder 13 is inserted into the limit sleeve 12 in a limited manner. The first magnet block 24 is embedded in the bottom of the rotating cylinder 13. The first magnet block 24 is magnetically adsorbed and connected to the second magnet block 25. The support plate is fixedly installed on the outer wall of one side of the mounting frame 14. The support plate and the rotating cylinder 13 are fixed by screws. During use, by adjusting the rotating cylinder 13, the angle of the clamping mechanism can be adjusted, and then the position of the laser collimator can be adjusted. The first magnet block 24 and the second magnet block 25 are adsorbed and connected, so that it is easy to fix the rotating cylinder 13 and the top plate 11. The materials are convenient and fast to obtain, and the adjustment operation is also very simple. Light-transmitting holes are opened in the rotating cylinder 13, the top plate 11, the adjustment plate 5 and the mounting plate 1.

[0028] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mechanism for adjusting the incident light beam of an off-axis integrating cavity, comprising a mounting plate (1), characterized in that: A height adjustment mechanism is provided at the top of the mounting plate (1). An angle adjustment mechanism is mounted on the top of the height adjustment mechanism. A rotation adjustment mechanism is mounted on the top of the angle adjustment mechanism. A clamping mechanism is mounted at the top end of the rotation adjustment mechanism; The clamping mechanism includes a mounting frame (14), a support plate, a screw, a rotating plate, a lead screw (18), a limiting block (15), a mounting bracket (19), a ring (21), a spring shock absorber (22), a shock-absorbing spring (23), and a clamping plate (20). The lead screw (18) is movably inserted into the inner side wall of the mounting frame (14). The limiting block (15) is movably sleeved on the outside of the lead screw (18), and the limiting block (15) is clamped with the mounting frame (14). One end of the lead screw (18) is fixedly connected to the rotating plate. The limiting block (15) is fixedly connected to the mounting bracket (19). The ring (21) is fixedly installed on the outer side wall of one side of the mounting bracket (19). The spring shock absorber (22) is fixedly installed on the inner wall of the ring (21). The clamping plate (20) is fixedly connected to the other end of the spring shock absorber (22). The shock-absorbing spring (23) is movably sleeved on the outside of the spring shock absorber (22).

2. The mechanism for adjusting the off-axis integral cavity incident light beam according to claim 1, characterized in that: Mounting holes are formed inside the mounting plate (1), and mounting bolts (2) are threadedly installed inside the mounting holes.

3. The mechanism for adjusting the off-axis integrating cavity incident light beam according to claim 1, characterized in that: The height adjustment mechanism includes a first threaded rod (3), a limiting spring (16), and a rotating rod (17). One end of the first threaded rod (3) is threadedly inserted into the mounting plate (1). The rotating rod (17) is fixedly installed on the outside of the first threaded rod (3). The limiting spring (16) is movably sleeved on the outside of the first threaded rod (3), and the top end of the limiting spring (16) is clamped with the first threaded rod (3). A bearing is installed on the outside of one end of the first threaded rod (3), and the first threaded rod (3) is fixedly connected to the inner ring of the bearing.

4. The mechanism for adjusting the off-axis integral cavity incident light beam according to claim 1, wherein: The angle adjustment mechanism includes an adjustment plate (5), a ball socket (6), a second threaded rod (7), a connecting rod (8), a vertical plate (9), a connecting shaft (10), and a top plate (11). The adjustment plate (5) is fixedly installed on the top of the outer ring of the bearing. The vertical plate (9) is fixedly installed on the top of the adjustment plate (5). One end of the connecting shaft (10) is movably inserted into the vertical plate (9). The connecting rod (8) is movably sleeved on the outside of the connecting shaft (10). The other end of the connecting rod (8) is fixedly connected to the top plate (11). The second threaded rod (7) is threadedly inserted into the top plate (11). The bottom end of the second threaded rod (7) is fixedly connected to the ball socket (6). The ball socket (6) is clamped with the adjustment plate (5).

5. The mechanism for adjusting the off-axis integral cavity incident light beam according to claim 4, wherein: The rotation adjustment mechanism includes a limit sleeve (12), a rotating cylinder (13), a first magnet block (24) and a second magnet block (25). The second magnet block (25) is embedded in the top of the top plate (11). The limit sleeve (12) is fixedly installed on the top of the top plate (11). The rotating cylinder (13) is inserted into the limit sleeve (12) in a limited manner. The first magnet block (24) is embedded in the bottom of the rotating cylinder (13). The first magnet block (24) is magnetically adsorbed and connected to the second magnet block (25).

6. The mechanism for adjusting the off-axis integral cavity incident light beam according to claim 1, characterized in that: The support plate is fixedly installed on the outer wall of one side of the installation frame (14). The support plate and the rotating cylinder (13) are fixed by screws.

Images