Infrared laser adjusting structure
By designing a tripod and tilt angle adjustment components, combined with coarse and fine adjustment mechanisms, the problem of traditional infrared laser adjustment structures being easily affected by hand tremors has been solved. This achieves precise and stable laser reflection angle adjustment, avoids tripod displacement, and allows for quick location of the laser emission beam.
Patent Information
- Application Number
- CN202511210363.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2025-11-11
AI Technical Summary
Traditional infrared laser adjustment structures are easily affected by hand tremors, resulting in low adjustment accuracy and easy displacement, which affects the accuracy and stability of adjustment.
It adopts a tripod structure, and uses a telescopic column and a pitch angle adjustment component, combined with coarse and fine adjustment mechanisms, to adjust the laser reflection angle using pads and worm gear handles to avoid the influence of hand tremors, and uses a baffle to find the position of the laser beam.
It enables precise adjustment of the laser reflection angle without the influence of hand tremors, prevents tripod displacement, improves the accuracy and stability of adjustment, and quickly locates the position of the laser emission beam.
Smart Images
Figure CN120928527A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of optical technology, and in particular to an infrared laser modulation structure. Background Technology
[0002] To protect the environment and detect pollutants in the atmosphere, many roads are equipped with traffic atmospheric environmental monitoring devices to monitor the atmospheric environment on the road and understand the atmospheric environment in real time. Among them, the infrared laser optical detection system is more common. It can quantitatively analyze the concentration of the gas being detected and qualitatively analyze the relevant gas components in the mixed gas. The existing infrared laser optical detection system mainly consists of two parts located on both sides of the road. One part emits and receives lasers, and the other part is mainly used to reflect lasers. That is, after the laser is emitted, it needs to be reflected back by the reflective part and then received again. The concentration and composition of the gas being tested are detected based on the optical characteristics of specific gases absorbing specific spectra.
[0003] Traditional infrared laser adjustment structures typically employ complex mechanical structures, making them susceptible to hand tremors during adjustment. This results in low adjustment accuracy and a tendency for the laser to shift off the ground during adjustment, further impacting accuracy and stability. Therefore, a simpler, more convenient infrared laser adjustment structure that avoids the effects of hand tremors and prevents shifting is needed for application in laser reflection devices. Summary of the Invention
[0004] Based on the technical problems existing in the prior art, this invention proposes an infrared laser modulation structure.
[0005] This invention proposes an infrared laser adjustment structure, including a tripod. A telescopic column is telescopically connected to the central column of the tripod. A housing is mounted on the top of the telescopic column via a pitch angle adjustment assembly. The housing contains an entrance channel and a reflection channel that are interconnected. A first reflector is fixedly connected to the entrance channel, and a second reflector is installed in the reflection channel. The pitch angle adjustment assembly includes a connecting sleeve and a mounting base. The connecting sleeve is mounted on the top of the telescopic column, and the connecting sleeve and the mounting base are joined together by two sets of staggered mating parts. A bolt is inserted into each mating part, and a knob is threaded to the end of the bolt. A sliding rod is slidably connected to the bottom of the housing, and a pad with a beveled bottom is fixedly connected to the bottom end of the sliding rod. The tripod is unfolded and placed on the ground. The height of the housing is adjusted by pulling the telescopic column upwards until the laser is aligned with the entrance channel. The laser is reflected by the first reflector to the second reflector. Second, reflect the light back to form a reflected beam. Then, stand behind the casing and loosen the knob slightly. Hold the top of the telescopic column with one hand and slowly push the pad towards the laser emitter with the other hand. The inclined surface of the pad will then press against the top of the telescopic column. Gradually lift the casing upwards, causing it to rotate around the axis of bolt one. This adjusts the pitch angle of the reflected laser. When the laser is observed to be accurately reflected to the receiving part of the laser emitter, use the thumb of the hand holding the telescopic column to stabilize the pad in its current position. Use the free hand to tighten the knob again, fixing the casing at this angle. This avoids the impact of hand tremors on the adjustment of the pitch angle of the reflected light during the use of existing equipment, and also prevents the tripod from shifting between itself and the ground during the adjustment process.
[0006] Preferably, the connecting sleeve is fitted onto the telescopic column, and the free end of the connecting sleeve has a slot, into which a bolt two, which is threadedly connected to the connecting sleeve, is inserted. By pulling the free end of the connecting sleeve outward slightly from the notch, and then fitting the connecting sleeve onto the telescopic column, the bolt two is inserted into the slot and tightened, thus fixing the connecting sleeve onto the telescopic column, making the pitch angle adjustment component easy to assemble and disassemble.
[0007] Preferably, a stud is fixedly connected to the top of the mounting base, and the outer shell is threaded onto the stud; align the bottom of the outer shell with the stud and then rotate it until the outer shell is tightened, thus conveniently completing the assembly of the outer shell.
[0008] Preferably, the telescopic column is inserted at the top of the central column, and a sleeve is fitted and rotatably connected to the top of the central column. The sleeve is threadedly connected to the telescopic column, and the bottom end of the telescopic column is slidably engaged with the central column through a guide rod. By rotating the sleeve, the telescopic column can be moved up or down through the threaded engagement between the sleeve and the telescopic column, thereby achieving rapid adjustment of the height of the outer shell.
[0009] Preferably, each end of the second reflector is fixedly connected to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the outer casing. A worm gear is fixedly sleeved on one of the rotating shafts, and a worm handle is rotatably connected to the rear end of the outer casing. The worm handle meshes with the worm gear. By adjusting the pitch angle of the outer casing using a pad, a coarse adjustment of the pitch angle of the laser reflected light can be achieved. Then, by rotating the worm handle, the worm handle meshes with the worm gear, causing the second reflector to rotate around the rotating shaft, thereby adjusting the angle of the second reflector and achieving a fine adjustment of the pitch angle of the reflected light.
[0010] Preferably, the telescopic column is detachably connected to a rotatable baffle; by installing the baffle on the telescopic column and then rotating the baffle, a circumferential range can be formed by the baffle, and then the laser emission light can be found by observing whether an illumination point appears on the baffle. In this way, the specific location of the laser emission light can be quickly found, and then subsequent alignment work can be carried out.
[0011] Preferably, a rotating ring is rotatably fitted on the telescopic column, and an insert post is provided on the outer circumference of the rotating ring. An insert cylinder is rotatably connected to the rear end of the baffle, and the other end of the insert cylinder can be tightly fitted onto the insert post. By tightening the end of the insert cylinder onto the insert post, the installation of the baffle is quickly completed. It can be removed at any time, or it can be allowed to hang naturally on the telescopic column when the baffle is not in use.
[0012] Preferably, the insert is rotatably connected to the baffle via a mounting cylinder behind the baffle. The outer circumference of the insert near the mounting cylinder has multiple annularly arranged grooves, each containing a spring and a ball bearing. A ring plate, fitted onto the insert, is fixedly connected inside the mounting cylinder. The inner circumference of the ring plate has multiple annularly arranged positioning parts that engage with the ball bearings. The center of each positioning part is recessed inwards. During the rotation of the baffle, the positioning parts compress the ball bearings, causing the ball bearings to compress the springs and enter the grooves. When the baffle rotates to a certain angle and an irradiation point appears, simply stopping the rotation of the baffle allows the spring to push the ball bearings against the center of the corresponding positioning part, stabilizing the baffle at that angle. This eliminates the need to constantly hold the baffle by hand.
[0013] Compared with the prior art, the present invention provides an infrared laser modulation structure, which has the following beneficial effects: 1. An infrared laser adjustment structure, in the process of adjusting the pitch angle, causes the housing to rotate by moving a pad, rather than by directly driving the housing to rotate by hand. In addition, the pad is stabilized in the current position by the thumb of the hand holding the telescopic column. The whole process avoids the influence of hand tremors on the adjustment of the pitch angle of the reflected light, and also avoids the tripod from shifting between the tripod and the ground during the adjustment process.
[0014] 2. An infrared laser adjustment structure, by setting coarse adjustment and fine adjustment mechanisms, firstly, the pitch angle of the outer shell is coarsely adjusted by using a pad, and then the worm gear and reflector are rotated by rotating the worm handle to achieve fine adjustment, thereby enabling precise adjustment of the pitch angle of the laser reflected light.
[0015] 3. An infrared laser adjustment structure, which, when the distance between the laser emitting device and the laser reflecting device is far, forms a circumferential range by rotating a baffle and observes whether an irradiation point appears on the baffle to quickly find the specific location of the laser emission beam.
[0016] 4. An infrared laser adjustment structure, wherein when the baffle is rotated to a certain angle and an irradiation point appears, the spring pushes the ball to press against the middle position of a corresponding positioning part, stabilizing the baffle at that angle, without needing to hold it by hand. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an infrared laser modulation structure proposed in this invention; Figure 2 This is a schematic diagram of the installation structure between the central column and the telescopic column of the infrared laser adjustment structure proposed in this invention. Figure 3 For the present invention Figure 2 A magnified structural diagram at point A; Figure 4 This is an exploded view of the central column, connecting sleeve, and mounting base of an infrared laser adjustment structure proposed in this invention; Figure 5 This is a schematic diagram of the internal structure of the outer shell of an infrared laser modulation structure proposed in this invention; Figure 6 This is a schematic diagram of an infrared laser adjustment structure proposed in this invention, which adjusts the reflected light using a pad. Figure 7 This is a schematic diagram of an infrared laser modulation structure proposed in this invention, which uses a baffle to find the laser irradiation point. Figure 8 This is a schematic cross-sectional view of the baffle structure of an infrared laser adjustment structure proposed in this invention; Figure 9 For the present invention Figure 8 A magnified structural diagram at point B.
[0018] In the diagram: 1. Tripod; 101. Center column; 2. Telescopic column; 3. Connecting sleeve; 4. Mounting base; 5. Housing; 6. Stud; 7. Incident channel; 8. Reflection channel; 9. Reflector 1; 10. Reflector 2; 11. Connecting part; 12. Bolt 1; 13. Knob; 14. Slide rod; 15. Pad; 16. Slot; 17. Bolt 2; 18. Sleeve; 19. Guide rod; 20. Rotating shaft; 21. Worm gear handle; 22. Worm wheel; 23. Rotary ring; 24. Insert post; 25. Baffle; 26. Mounting cylinder; 27. Insert cylinder; 28. Ring plate; 29. Positioning part; 30. Spring; 31. Ball bearing. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0021] Reference Figures 1-9 An infrared laser adjustment structure includes a tripod 1, a telescopic column 2 telescopically connected to the central column 101 of the tripod 1, a housing 5 mounted on the top of the telescopic column 2 via a pitch angle adjustment assembly, an incident channel 7 and a reflection channel 8 connected to each other inside the housing 5, a reflector 9 fixedly connected inside the incident channel 7, and a reflector 10 disposed inside the reflection channel 8, the pitch angle adjustment assembly including a connecting sleeve 3 and a mounting base 4, the connecting sleeve 3 being mounted on the top of the telescopic column 2, the connecting sleeve 3 and the mounting base 4 being joined together by two sets of staggered docking parts 11, a bolt 12 inserted into the docking part 11, a knob 13 threadedly connected to the end of the bolt 12, a sliding rod 14 slidably connected to the bottom of the housing 5, and a pad 15 with a beveled bottom fixedly connected to the bottom end of the sliding rod 14; In use, unfold tripod 1 and place it on the ground. Adjust the height of outer shell 5 by pulling the telescopic column 2 upwards until the laser is aligned with the incident channel 7. The laser is reflected by reflector 1 9 to reflector 2 10, and then reflected back to form a reflected light. Then, stand behind outer shell 5 and loosen knob 13 slightly. Hold the top of telescopic column 2 firmly with one hand, and use the other hand to slowly push pad 15 towards the laser emitter (e.g., ...). Figure 6As shown by the straight arrow in the diagram), the inclined surface on the pad 15 will abut against the top of the telescopic column 2, and then gradually lift the outer casing 5 upwards, causing the outer casing 5 to rotate around the axis of bolt 12 (as shown by the arrow in the diagram). Figure 6 (As shown by the arc arrow in the image), this is used to adjust the pitch angle of the reflected laser. When the laser is observed to be accurately reflected to the receiving part on the laser emitting device, the thumb of the hand holding the telescopic column 2 can be used to stabilize the pad 15 in the current position, and the free hand can be used to tighten the knob 13 again to fix the outer casing 5 at this angle. In this way, during the adjustment of the pitch angle, the hand tremors during the use of the existing equipment can be avoided from affecting the adjustment of the pitch angle of the reflected light, and the tripod 1 can also be prevented from shifting between itself and the ground during the adjustment process.
[0022] Among them, the connecting sleeve 3 is sleeved on the telescopic column 2, and the free end of the connecting sleeve 3 is provided with a slot 16, and a bolt 17 that is threadedly connected to the connecting sleeve 3 is inserted into the slot 16. In use, pull the free end of the connecting sleeve 3 outward a little from the notch of the connecting sleeve 3, and then put the connecting sleeve 3 onto the telescopic column 2. Then insert the bolt 17 into the slot 16 and tighten it, so that the connecting sleeve 3 is fixed to the telescopic column 2, making the pitch angle adjustment component easy to disassemble and assemble.
[0023] Among them, the top of the mounting base 4 is fixedly connected to the stud 6, and the outer shell 5 is threadedly connected to the stud 6; When using, align the bottom of the outer casing 5 with the stud 6 and then rotate it until the outer casing 5 is tightened. This makes it easy to assemble the outer casing 5.
[0024] The telescopic column 2 is inserted at the top of the central column 101, and a sleeve 18 is sleeved and rotatably connected to the top of the central column 101. The sleeve 18 is threadedly connected to the telescopic column 2, and the bottom end of the telescopic column 2 forms a sliding fit with the central column 101 through the guide rod 19. In use, rotating the sleeve 18 allows the telescopic column 2 to move up or down through the threaded connection between the sleeve 18 and the telescopic column 2, thereby achieving rapid adjustment of the height of the outer shell 5.
[0025] Furthermore, the two ends of the second reflector 10 are respectively fixedly connected to the rotating shaft 20, and the other end of the rotating shaft 20 is rotatably connected to the outer shell 5. A worm gear 22 is fixedly sleeved on one of the rotating shafts 20, and a worm handle 21 is rotatably connected to the rear end of the outer shell 5. The worm handle 21 is meshed with the worm gear 22. In use, as described above, the pitch angle of the outer casing 5 can be adjusted by using the pad 15 to achieve coarse adjustment of the pitch angle of the laser reflected light. Then, by rotating the worm gear handle 21, the worm gear handle 21 meshes with the worm wheel 22, causing the second reflector 10 to rotate around the rotating shaft 20, thereby adjusting the angle of the second reflector 10 and achieving fine adjustment of the pitch angle of the reflected light.
[0026] Furthermore, a rotatable baffle 25 is detachably connected to the telescopic column 2; Considering that if the distance between the laser emitting device and the laser reflecting device is large, it will be difficult to find the laser beam from a distance. In this case, the baffle 25 can be installed on the telescopic column 2, and then the baffle 25 can be rotated (e.g., Figure 7 As shown by the arrow in the middle arc), a circumferential range can be formed by the baffle 25 (such as...). Figure 7 (As shown by the dashed circle in the middle), then check if there is an illumination point on the baffle 25 to find the laser emission beam. This way, you can quickly find the specific location of the laser emission beam and then carry out the subsequent alignment work.
[0027] Among them, a rotating ring 23 is rotatably sleeved on the telescopic column 2, and an insert post 24 is provided on the outer circumference of the rotating ring 23. The rear end of the baffle 25 is rotatably connected to the insert tube 27, and the other end of the insert tube 27 can be tightly sleeved on the insert post 24. When in use, the end of the insert 27 is fitted onto the insert post 24, which quickly completes the installation of the baffle 25. It can be removed at any time, or the baffle 25 can be left to hang naturally on the telescopic post 2 when not in use.
[0028] Furthermore, the insert 27 is rotatably connected to the baffle 25 via the mounting cylinder 26 behind the baffle 25. The outer circumference of the insert 27 near the mounting cylinder 26 is provided with multiple annularly arranged grooves. Springs 30 and balls 31 are placed inside the grooves. An annular plate 28 is fixedly connected inside the mounting cylinder 26 and sleeved on the insert 27. The inner circumference of the annular plate 28 is provided with multiple annularly arranged positioning parts 29 that cooperate with the balls 31. The middle part of the positioning part 29 is recessed inward. During use, as the baffle 25 rotates, the positioning part 29 will squeeze the ball 31, and then the ball 31 will compress the spring 30 and enter the circular groove. When the baffle 25 rotates to a certain angle and the irradiation point appears, you only need to stop rotating the baffle 25. Then the spring 30 will push the ball 31 to press against the middle position of the corresponding positioning part 29, which can stabilize the baffle 25 at that angle. This way, you don't need to hold the baffle 25 with your hand all the time.
[0029] Working principle: The tripod 1 is unfolded and placed on the ground. The sleeve 18 is rotated. Through the threaded engagement between the sleeve 18 and the telescopic column 2, the telescopic column 2 is moved up or down, thereby realizing the rapid adjustment of the height of the outer shell 5 until the laser is aligned with the incident channel 7. The laser is reflected by the reflector 1 9 to the reflector 2 10, and then reflected back to form reflected light. Then, stand behind the outer casing 5 and loosen the knob 13 slightly. Hold the top of the telescopic column 2 with one hand and slowly push the pad 15 towards the laser emitting device with the other hand. The inclined surface on the pad 15 will then press against the top of the telescopic column 2. Gradually lift the outer casing 5 upwards so that the outer casing 5 rotates around the axis of bolt 12. This is to adjust the pitch angle of the laser reflection and achieve coarse adjustment of the pitch angle of the laser reflection. When it is observed that the laser is accurately reflected near the receiving part on the laser emitting device, the pad 15 can be stabilized in the current position with the thumb of the hand holding the telescopic column 2. The free hand can then be used to rotate the worm gear handle 21. The worm gear handle 21 engages with the worm wheel 22, causing the second reflector 10 to rotate around the rotating shaft 20, thereby adjusting the angle of the second reflector 10 and achieving fine adjustment of the pitch angle of the reflected light. When it is observed that the laser is accurately reflected near the receiving part on the laser emitting device, the knob 13 is tightened again to fix the outer casing 5 at this angle. If the distance between the laser emitting device and the laser reflecting device is far, it is difficult to find the laser emission beam from a distance. In this case, the end of the insert 27 is fitted onto the insert post 24, the baffle 25 is installed on the telescopic post 2, and then the baffle 25 is rotated to form a circumferential range. The laser emission beam is found by observing whether an illumination point appears on the baffle 25. When the baffle 25 is rotated to an angle where an illumination point appears, the positioning part 29 will squeeze the ball 31, and then the ball 31 will compress the spring 30 and enter the circular groove. At this time, simply stop rotating the baffle 25, and then the spring 30 will push the ball 31 to press against the middle position of the corresponding positioning part 29. This will stabilize the baffle 25 at that angle, quickly find the specific position of the laser emission beam, and then proceed with the subsequent alignment work.
[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An infrared laser adjustment structure, comprising a tripod (1), characterized in that, The tripod (1) has a telescopic column (2) telescopically connected to the central column (101). The top of the telescopic column (2) is fitted with a housing (5) via a pitch angle adjustment assembly. The housing (5) has an entrance channel (7) and a reflection channel (8) that are connected to each other. A reflector (9) is fixedly connected in the entrance channel (7). A reflector (10) is provided in the reflection channel (8). The pitch angle adjustment assembly includes a connecting sleeve (3) and a mounting base (4). The connecting sleeve (3) is installed at the top of the telescopic column (2). The connecting sleeve (3) and the mounting base (4) are joined together by two sets of staggered docking parts (11). A bolt (12) is inserted into the docking part (11). A knob (13) is threaded to the end of the bolt (12). A slide rod (14) is slidably connected to the bottom of the housing (5). A pad (15) with a sloped bottom is fixedly connected to the bottom end of the slide rod (14).
2. The infrared laser modulation structure according to claim 1, characterized in that, The connecting sleeve (3) is fitted onto the telescopic column (2), and the free end of the connecting sleeve (3) is provided with a slot (16), and a bolt (17) that is threadedly connected to the connecting sleeve (3) is inserted into the slot (16).
3. The infrared laser modulation structure according to claim 1, characterized in that, The mounting base (4) is fixedly connected to a stud (6) at its top end, and the outer shell (5) is threaded onto the stud (6).
4. The infrared laser modulation structure according to claim 1, characterized in that, The telescopic column (2) is inserted at the top of the central column (101), and a sleeve (18) is sleeved and rotatably connected to the top of the central column (101). The sleeve (18) is threadedly connected to the telescopic column (2), and the bottom end of the telescopic column (2) is in sliding fit with the central column (101) through the guide rod (19).
5. The infrared laser modulation structure according to claim 1, characterized in that, The two ends of the second reflector (10) are respectively fixedly connected to the rotating shaft (20), and the other end of the rotating shaft (20) is rotatably connected to the outer shell (5). A worm gear (22) is fixedly sleeved on one of the rotating shafts (20), and a worm handle (21) is rotatably connected to the rear end of the outer shell (5). The worm handle (21) is meshed with the worm gear (22).
6. The infrared laser modulation structure according to claim 1, characterized in that, The telescopic column (2) is detachably connected to a rotatable baffle (25).
7. The infrared laser modulation structure according to claim 6, characterized in that, The telescopic column (2) is rotatably fitted with a rotating ring (23), and the outer circumferential wall of the rotating ring (23) is provided with a plug (24). The rear end of the baffle (25) is rotatably connected with a plug (27), and the other end of the plug (27) can be tightly fitted onto the plug (24).
8. The infrared laser modulation structure according to claim 7, characterized in that, The insert (27) is rotatably connected to the baffle (25) via the mounting cylinder (26) behind the baffle (25). The outer circumference of the insert (27) near the mounting cylinder (26) is provided with multiple annularly arranged grooves. Springs (30) and balls (31) are placed inside the grooves. An annular plate (28) is fixedly connected inside the mounting cylinder (26) and is sleeved on the insert (27). The inner circumference of the annular plate (28) is provided with multiple annularly arranged positioning parts (29) that cooperate with the balls (31). The middle part of the positioning part (29) is recessed inward.