High-speed airflow telescopic dustproof air outlet assembly of laser radar fixing device

Abstract

The invention belongs to the technical field of laser radars, and relates to a high-speed airflow telescopic dustproof air outlet assembly of a laser radar fixing device, which comprises a protection frame, a laser radar is rotatably arranged in the protection frame, a plurality of water outlet pipes are arranged in the protection frame, and the plurality of water outlet pipes are uniformly arranged outside the laser radar. A first spraying pipe is slidably arranged at the end of each water outlet pipe, a water outlet hole is formed in the side face, facing the laser radar, of each first spraying pipe, a plurality of air outlet pipes are fixedly arranged on the protection frame and evenly distributed outside the laser radar, a second spraying pipe is slidably arranged at the end of each air outlet pipe, and the second spraying pipes are evenly distributed outside the laser radar. The side face, facing the laser radar, of each second spraying pipe is provided with an air outlet hole. The laser radar washing device has the advantages that the laser radar is washed through water, the fan is started after washing so that air can be blown to the laser radar through the second spraying pipe, water after washing directly drifts away, the workload of workers is reduced, and use is more convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser radars and relates to a high-speed airflow telescopic dust-proof air outlet component of a laser radar fixing device. Background Art

[0002] LiDAR is a radar system that emits laser beams to detect the position, speed and other characteristic quantities of a target. When adding an intelligent system that is independent of the host system to a port machinery, it is necessary to build a set of LiDAR detection devices for the ship loader equipment, so that the port machinery can identify the on-site situation through LiDAR and provide a decision-making basis for the intelligent system. During the working process of LiDAR, since it must be exposed to the outside and unobstructed to work normally, it is easy to be attached by pollutants such as dust in the air and mud in rainy days. These pollutants will block the LiDAR, resulting in errors between the road information collected by the LiDAR and the actual road information, which in turn affects the safety and performance of various detection applications. Therefore, a cleaning component is needed to clean the LiDAR.

[0003] A traffic condition prompt device disclosed in Chinese patent CN115595911A includes a base, a mounting frame is arranged on the base, a controller, a camera, a display screen and a communication gateway are arranged on the mounting frame, a transparent cover for covering the display screen is arranged on the mounting frame, and a driving mechanism is arranged on the mounting frame. The driving mechanism is connected to the scraper rod and can drive the scraper to move along the surface of the transparent cover.

[0004] The device cleans the transparent cover by means of a scraper, but impurities or dust will accumulate on the scraper after a long period of cleaning, and the scraper needs to be disassembled for cleaning, which is not convenient to use.

[0005] In order to solve the above problems, the present invention proposes a high-speed airflow telescopic dust-proof air outlet component of a laser radar fixing device. Summary of the invention

[0006] In order to solve the problems existing in the background technology, the present invention proposes a high-speed airflow telescopic dust-proof air outlet component of a laser radar fixing device.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: comprising a protection frame, wherein a laser radar is rotatably arranged inside the protection frame, wherein a plurality of water outlet pipes are arranged inside the protection frame, wherein the plurality of water outlet pipes are evenly arranged outside the laser radar, wherein a first nozzle is slidably arranged at the end of each water outlet pipe, and a water outlet hole is opened on a side of each first nozzle facing the laser radar;

[0008] A plurality of air outlet pipes are fixedly arranged on the protective frame and are evenly distributed outside the laser radar. A second nozzle is slidably arranged at the end of each air outlet pipe, and an air outlet hole is opened on the side of each second nozzle facing the laser radar.

[0009] Furthermore, the water outlet pipe includes a first connecting pipe, one end of each first connecting pipe is fixedly connected to a water pump, the interior of the protective frame is fixedly connected to a water tank, each water pump is fixedly connected to one side of the water tank, the input pipe of the water pump extends into the water tank, and the first nozzle is slidably arranged in the first connecting pipe.

[0010] Furthermore, one end of each first nozzle is fixedly connected to a first sliding tube, and an inner wall of each first connecting tube is provided with a first sliding groove, and the first sliding tube is slidably connected to the inside of the corresponding first sliding groove;

[0011] One end of the first sliding tube close to the first nozzle is fixedly connected with a first spring, the first spring is sleeved on the corresponding first nozzle, and the other end of the first spring is fixedly connected to the end surface of the corresponding first sliding groove.

[0012] Furthermore, the bottom surface of the inner cavity of the protection frame is fixedly connected with a base, the top surface of the base is arranged in an arc shape, the laser radar is rotatably arranged on the top surface of the base, one end of the laser radar is rotatably connected to the water tank, and a gear ring is fixedly sleeved on the laser radar;

[0013] A second motor is fixedly connected to the bottom surface of the protection frame, a gear is fixedly connected to the output shaft of the second motor, and the gear is meshed with the gear ring.

[0014] Furthermore, the air outlet pipe includes a second connecting pipe, which is L-shaped, one end of each second connecting pipe is fixedly connected to the inner wall of the protective frame, the other end of each second connecting pipe is parallel to the first connecting pipe, and the second nozzle is slidably arranged in the second connecting pipe.

[0015] Furthermore, one end of each second nozzle is fixedly connected to a second sliding tube, and the inner wall of each second connecting tube is provided with a second sliding groove, and the second sliding tube is slidably connected to the inside of the corresponding second sliding groove;

[0016] One end of the second sliding tube close to the second nozzle is fixedly connected with a second spring, the second spring is sleeved on the corresponding second nozzle, and the other end of the second spring is fixedly connected to the end surface of the corresponding second sliding groove.

[0017] Furthermore, a through hole is provided at the connection between the protective frame and each second connecting tube, and the through holes are respectively connected to the corresponding second connecting tubes. A fan is fixedly installed inside each through hole, a heating plate is fixedly connected inside one end of each second connecting tube close to the fan, and a filter is fixedly installed inside one end of each through hole away from the second connecting tube.

[0018] Furthermore, each second nozzle is provided with a plurality of connecting shafts which rotate at intervals and penetrate through it, and each connecting shaft is provided with a swing plate which is fixedly sleeved, and the ends of two adjacent swing plates are slidably matched;

[0019] A first motor is fixedly connected to one side of each second nozzle, and the first motor drives a connecting shaft at the end to rotate. A transmission assembly is provided on each second nozzle, and the transmission assembly cooperates with the first motor. When the first motor drives a connecting shaft at the end to rotate, the transmission assembly drives the remaining connecting shafts to rotate synchronously.

[0020] Furthermore, the transmission assembly includes a first connecting rod and a second connecting rod, each connecting shaft is fixedly sleeved with a first connecting rod, and the second connecting rod is hinged between two adjacent first connecting rods.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The high-speed airflow telescopic dust-proof air outlet component of the laser radar fixing device is provided with a first nozzle and a second nozzle. When in use, the water pump is started to allow the water in the water tank to enter the first sliding tube through the first connecting tube, and the water is sprayed toward the laser radar through the water outlet hole on the first nozzle, and the laser radar is flushed with water. After flushing, the fan is started to allow wind to enter the second sliding tube, and then the wind will be blown toward the laser radar through the second nozzle to dry the flushed laser radar, and the flushing water will float away directly, reducing the workload of the staff and making it more convenient to use.

[0023] 2. When the high-speed airflow telescopic dust-proof outlet assembly of the laser radar fixing device uses the first nozzle to spray water, the water will impact the first nozzle, causing the first nozzle to slide toward the outside of the first connecting tube, driving the first sliding tube to slide inside the first connecting tube and compressing the first spring, so that the first nozzle can flush the laser radar. After flushing, the first spring will push the first sliding tube to move the first nozzle into the first connecting tube. Similarly, the second nozzle will enter the interior of the second connecting tube after spraying, which can seal the air outlet and the water outlet to reduce the clogging of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the laser radar in the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the water pump in the present invention;

[0027] Figure 4 It is a structural schematic diagram of the water tank in the present invention;

[0028] Figure 5 is a schematic structural diagram of the first connecting pipe in the present invention;

[0029] Figure 6 is a schematic structural diagram of the second connecting pipe in the present invention;

[0030] Figure 7 is a schematic structural diagram of the second nozzle in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the swing plate in the present invention.

[0032] In the figure: 1. protection frame; 2. mounting base; 3. protection plate; 4. base; 5. laser radar; 6. transmitting end; 7. camera; 8. water tank; 9. water pump; 10. first connecting pipe; 11. first sliding pipe; 12. first nozzle; 13. first spring; 14. second connecting pipe; 15. second sliding pipe; 16. second nozzle; 17. second spring; 18. first motor; 19. swing plate; 20. first connecting rod; 21. second connecting rod; 22. gear ring; 23. second motor; 24. gear; 25. heating plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-Figure 8 As shown, the technical solution adopted by the present invention is as follows: a high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device, comprising a protective frame 1, and a laser radar 5 is rotatably arranged inside the protective frame 1. The laser radar 5 is an advanced radar system that uses a laser beam for detection and ranging. It uses a laser as a transmitting light source, and obtains characteristic quantity information such as the position and speed of the target by emitting a laser beam and receiving a signal reflected back by the target. A transmitting end 6 is arranged at one end of the laser radar 5.

[0035] The bottom of the protection frame 1 is fixedly connected with a mounting seat 2, which is used to fix the laser radar 5. A protective plate 3 is fixedly connected to one side of the top of the protection frame 1, which protects the top of the laser radar 5. A camera 7 is fixedly connected to the bottom surface of the inner cavity of the protection frame 1, and the lens of the camera 7 faces the transmitting end 6. In order to monitor the dust or impurities on the surface of the transmitting end 6 and the laser radar 5 through the camera 7, so as to clean them in time.

[0036] A plurality of water outlet pipes are arranged inside the protection frame 1, and the plurality of water outlet pipes are evenly arranged outside the laser radar 5. A first nozzle 12 is slidably arranged at the end of each water outlet pipe, and a water outlet hole is opened on a side of each first nozzle 12 facing the laser radar 5. The water in each first nozzle 12 can be sprayed toward the laser radar 5 through the water outlet hole to flush the laser radar 5 and the transmitting end 6.

[0037] The water outlet pipe includes a first connecting pipe 10, and one end of each first connecting pipe 10 is fixedly connected to a water pump 9. A water tank 8 is fixedly connected inside the protection frame 1, and each water pump 9 is fixedly connected to one side of the water tank 8, and the input pipe of the water pump 9 extends into the water tank 8. Start the water pump 9 to allow the water in the water tank 8 to enter the first connecting pipe 10. The first spray pipe 12 is slidably arranged in the first connecting pipe 10.

[0038] One end of each first nozzle 12 is fixedly connected to the first sliding tube 11, and a first sliding groove is provided on the inner wall of each first connecting tube 10. The first sliding tube 11 is slidably connected to the inside of the corresponding first sliding groove. The first sliding tube 11 slides inside the first sliding groove to position one end of the first nozzle 12 in the first connecting tube 10.

[0039] The first spring 13 is fixedly connected to one end of the first sliding tube 11 close to the first nozzle 12, and the first spring 13 is sleeved on the corresponding first nozzle 12. The other end of the first spring 13 is fixedly connected to the end surface of the corresponding first chute. In the initial state, the first spring 13 pushes the first sliding tube 11 to one end of the first chute, so that one end of the first sliding tube 11 abuts against the end surface of the first chute, and the first nozzle 12 is completely located in the first connecting tube 10.

[0040] The bottom surface of the inner cavity of the protection frame 1 is fixedly connected with a base 4, the top surface of the base 4 is arranged in an arc shape, and the laser radar 5 is rotatably arranged on the top surface of the base 4. One end of the laser radar 5 is rotatably connected to the water tank 8. The laser radar 5 is positioned on the base 4. A gear ring 22 is fixedly sleeved on the laser radar 5.

[0041] A second motor 23 is fixedly connected to the bottom surface of the protection frame 1, and a gear 24 is fixedly connected to the output shaft of the second motor 23, and the gear 24 meshes with the gear ring 22. The second motor 23 drives the gear 24 to rotate, and the gear 24 drives the gear ring 22 to rotate, thereby rotating the laser radar 5.

[0042] A plurality of air outlet pipes are fixedly arranged on the protection frame 1, and the plurality of air outlet pipes are evenly arranged outside the laser radar 5. A second nozzle 16 is slidably arranged at the end of each air outlet pipe, and an air outlet hole is opened on the side of each second nozzle 16 facing the laser radar 5. The wind in each second nozzle 16 can be blown toward the laser radar 5 through the air outlet hole, thereby drying the laser radar 5 after washing.

[0043] The air outlet pipe includes a second connecting pipe 14, which is L-shaped. One end of each second connecting pipe 14 is fixedly connected to the inner wall of the protection frame 1, and the other end of each second connecting pipe 14 is parallel to the first connecting pipe 10. The second nozzle 16 is slidably arranged in the second connecting pipe 14. The sliding direction of the second nozzle 16 is consistent with that of the first nozzle 12.

[0044] One end of each second nozzle 16 is fixedly connected to a second sliding tube 15. A second sliding groove is provided on the inner wall of each second connecting tube 14, and the second sliding tube 15 is slidably connected to the inside of the corresponding second sliding groove. The second sliding tube 15 slides inside the second sliding groove to position one end of the second nozzle 16 in the second connecting tube 14.

[0045] The second spring 17 is fixedly connected to one end of the second sliding tube 15 close to the second nozzle 16, and the second spring 17 is sleeved on the corresponding second nozzle 16. The other end of the second spring 17 is fixedly connected to the end surface of the corresponding second chute. In the initial state, the second spring 17 pushes the second sliding tube 15 to one end of the second chute, so that one end of the second sliding tube 15 abuts against the end surface of the second chute, and the second nozzle 16 is completely located in the second connecting tube 14.

[0046] Through holes are provided at the connection between the protection frame 1 and each second connecting tube 14, and the through holes are respectively connected to the corresponding second connecting tubes 14. A fan is fixedly installed inside each through hole. So that the wind can be blown into the second connecting tube 14 through the fan. A heating plate 25 is fixedly connected to the inside of each second connecting tube 14 near the fan, and the wind blown into the second connecting tube 14 is heated into hot air through the heating plate 25. A filter is fixedly installed inside the end of each through hole away from the second connecting tube 14. The wind entering the through hole is filtered to reduce the situation where impurities clog the second nozzle 16.

[0047] The working principle of the heating plate 25 is mainly to convert electrical energy into thermal energy, which is a form of electrical energy utilization. When current passes through the resistor or electric heating alloy wire inside the heating plate 25, the electrical energy is converted into thermal energy, the electric heating alloy wire heats up, and transfers the heat to the surface of the heating plate 25 by conduction and radiation, thereby increasing the surface temperature and achieving the purpose of heating. The heating plate 25 is an existing product.

[0048] Each second nozzle 16 is provided with a plurality of connecting shafts which are rotated at intervals, and each connecting shaft is fixedly sleeved with a swing plate 19, and the ends of two adjacent swing plates 19 are slidably matched, so that each swing plate 19 can rotate.

[0049] A first motor 18 is fixedly connected to one side of each second nozzle 16, and the first motor 18 drives a connecting shaft at the end to rotate. A transmission assembly is provided on each second nozzle 16, and the transmission assembly cooperates with the first motor 18. When the first motor 18 drives a connecting shaft at the end to rotate, the transmission assembly drives the remaining connecting shafts to rotate synchronously. All the connecting shafts in the second nozzle 16 rotate synchronously through the first motor 18 and the transmission assembly.

[0050] The transmission assembly includes a first connecting rod 20 and a second connecting rod 21. The first connecting rod 20 is fixedly sleeved on each connecting shaft, and the second connecting rod 21 is hinged between two adjacent first connecting rods 20. The first connecting rod 20 is rotated by the transmission of the second connecting rod 21.

[0051] Working principle:

[0052] When in use, the mounting base 2 is fixed by bolts at a suitable position with a wide field of view and no obstacles, so as to facilitate the operation of the laser radar 5.

[0053] When the laser radar 5 is working, if the camera 7 monitors that impurities are attached to the transmitting end 6 and the laser radar 5, the laser radar 5 and the transmitting end 6 need to be cleaned.

[0054] The water pump 9 and the second motor 23 are started.

[0055] The water pump 9 pumps the water in the water tank 8 into the first connecting pipe 10 , and the water in the first connecting pipe 10 enters the first sliding pipe 11 and the first spray pipe 12 .

[0056] As the amount of water in the first connecting pipe 10 increases, the water will impact the first nozzle 12, causing the first nozzle 12 to move outside the first connecting pipe 10, thereby driving the first sliding pipe 11 to slide inside the first sliding groove and compressing the first spring 13.

[0057] The first nozzle 12 will drive the water outlet to move toward the outside of the first connecting pipe 10, so that water will flush the laser radar 5 and the transmitting end 6 through the water outlet.

[0058] The second motor 23 drives the gear 24 to rotate, and the gear 24 drives the gear ring 22 to rotate, so that the laser radar 5 rotates, so that the water can flush different parts of the laser radar 5, making the flushing more thorough.

[0059] After the flushing is completed, the water pump 9 is turned off to stop spraying water. The first spring 13 pushes the first sliding pipe 11 to slide inside the first chute, driving the first spray pipe 12 to move toward the inside of the first connecting pipe 10 .

[0060] The fan is started, and the heating plate 25 is powered on, and the temperature of the heating plate 25 increases.

[0061] The wind enters the second connecting tube 14, and the heating plate 25 heats the wind into hot wind. The hot wind enters the second sliding tube 15 and the second nozzle 16. The wind impacts the second nozzle 16, causing the second nozzle 16 to move to the outside of the second connecting tube 14, driving the second sliding tube 15 to slide inside the second slide groove, and compressing the second spring 17.

[0062] The second nozzle 16 drives the air outlet to move toward the outside of the second connecting pipe 14, so that the wind blows toward the laser radar 5 and the transmitting end 6 through the air outlet, thereby drying the laser radar 5 and the transmitting end 6.

[0063] At the same time, the second motor 23 will drive the laser radar 5 to rotate, so as to achieve a better air-drying effect.

[0064] During the air-drying process, the first motor 18 can be started to rotate a connecting shaft connected thereto, and the first connecting rod 20 at the end of the connecting shaft rotates, and the other end of the first connecting rod 20 drives one end of the second connecting rod 21 connected thereto to rotate, and the other end of the second connecting rod 21 drives the next first connecting rod 20 to rotate. By analogy, all the first connecting rods 20 rotate, and then all the connecting shafts rotate, and all the swing plates 19 rotate, changing the inclination angle of the swing plates 19, thereby changing the air outlet angle of the second nozzle 16, and further improving the air-drying effect.

[0065] After the air drying is completed, the fan is turned off and the blowing is stopped. The second spring 17 pushes the second sliding tube 15 to slide inside the second slide groove, driving the second nozzle 16 to move inside the second connecting tube 14. The second nozzle 16 has a dust-proof effect.

[0066] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed airflow telescopic dust-proof outlet assembly for a laser radar fixing device, characterized in that: The invention comprises a protection frame (1), wherein a laser radar (5) is rotatably arranged inside the protection frame (1), a plurality of water outlet pipes are arranged inside the protection frame (1), and the plurality of water outlet pipes are evenly arranged outside the laser radar (5), a first nozzle (12) is slidably arranged at the end of each water outlet pipe, and a water outlet hole is opened on a side surface of each first nozzle (12) facing the laser radar (5); A plurality of air outlet pipes are fixedly arranged on the protection frame (1), and the plurality of air outlet pipes are evenly arranged outside the laser radar (5). A second nozzle (16) is slidably arranged at the end of each air outlet pipe, and an air outlet hole is opened on the side of each second nozzle (16) facing the laser radar (5).

2. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 1, characterized in that: The water outlet pipe comprises a first connecting pipe (10), one end of each first connecting pipe (10) is fixedly connected to a water pump (9), the interior of the protective frame (1) is fixedly connected to a water tank (8), each water pump (9) is fixedly connected to one side of the water tank (8), the input pipe of the water pump (9) extends into the water tank (8), and the first nozzle (12) is slidably arranged in the first connecting pipe (10).

3. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 2, characterized in that: One end of each first nozzle (12) is fixedly connected to a first sliding tube (11), and an inner wall of each first connecting tube (10) is provided with a first sliding groove, and the first sliding tube (11) is slidably connected to the inside of the corresponding first sliding groove; One end of the first sliding tube (11) close to the first nozzle (12) is fixedly connected to a first spring (13), the first spring (13) is sleeved on the corresponding first nozzle (12), and the other end of the first spring (13) is fixedly connected to the end surface of the corresponding first sliding groove.

4. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 2, characterized in that: The bottom surface of the inner cavity of the protection frame (1) is fixedly connected to a base (4), the top surface of the base (4) is arranged in an arc shape, the laser radar (5) is rotatably arranged on the top surface of the base (4), one end of the laser radar (5) is rotatably connected to the water tank (8), and a gear ring (22) is fixedly sleeved on the laser radar (5); A second motor (23) is fixedly connected to the bottom surface of the protection frame (1), a gear (24) is fixedly connected to the output shaft of the second motor (23), and the gear (24) is meshed with the gear ring (22).

5. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 2, characterized in that: The air outlet pipe comprises a second connecting pipe (14), the second connecting pipe (14) is L-shaped, one end of each second connecting pipe (14) is fixedly connected to the inner wall of the protection frame (1), the other end of each second connecting pipe (14) is parallel to the first connecting pipe (10), and the second nozzle (16) is slidably arranged in the second connecting pipe (14).

6. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 5, characterized in that: One end of each second nozzle (16) is fixedly connected to a second sliding tube (15), and the inner wall of each second connecting tube (14) is provided with a second sliding groove, and the second sliding tube (15) is slidably connected to the inside of the corresponding second sliding groove; One end of the second sliding tube (15) close to the second nozzle (16) is fixedly connected to a second spring (17), the second spring (17) is sleeved on the corresponding second nozzle (16), and the other end of the second spring (17) is fixedly connected to the end surface of the corresponding second sliding groove.

7. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 5, characterized in that: A through hole is provided at the connection between the protection frame (1) and each second connecting tube (14), and the through holes are respectively connected to the corresponding second connecting tube (14). A fan is fixedly installed inside each through hole. A heating plate (25) is fixedly connected inside the end of each second connecting tube (14) close to the fan, and a filter is fixedly installed inside the end of each through hole away from the second connecting tube (14).

8. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 1, characterized in that: Each second nozzle (16) is provided with a plurality of connecting shafts which are rotated at intervals and penetrate through it, and each connecting shaft is fixedly sleeved with a swing plate (19), and the ends of two adjacent swing plates (19) are slidably matched; A first motor (18) is fixedly connected to one side of each second nozzle (16), and the first motor (18) drives a connecting shaft at the end to rotate. A transmission assembly is provided on each second nozzle (16), and the transmission assembly cooperates with the first motor (18). When the first motor (18) drives a connecting shaft at the end to rotate, the transmission assembly drives the remaining connecting shafts to rotate synchronously.

9. The high-speed airflow telescopic dust-proof outlet assembly of a laser radar fixing device according to claim 8, characterized in that: The transmission assembly comprises a first connecting rod (20) and a second connecting rod (21), each connecting shaft is fixedly sleeved with a first connecting rod (20), and the second connecting rod (21) is hinged between two adjacent first connecting rods (20).

Images