Remote laser obstacle removing instrument

Abstract

The invention relates to the technical field of obstacle removing instruments, in particular to a remote laser obstacle removing instrument which comprises a laser emitting box and an emitting device in the laser emitting box, and a straight cylinder is assembled at the output end of the emitting device; the spherical lens is arranged in the straight barrel, a protective channel is arranged between the spherical lens and the opening of the lens barrel, and the axis of the protective channel is collinear with the main axis of the spherical lens; the outer wall of the straight barrel is rotationally sleeved with a lens barrel, and an opening of the lens barrel is matched with a shell of the laser emission box; the inner wall of the lens cone is provided with an exhaust channel for outputting dry air or nitrogen into the protection channel, and the intake angle of the exhaust channel can drive the dry air or nitrogen to be exhausted from inside to outside. And mechanical scraping of the flexible scraping blade and heating of the fiber heating strip can be cooperated.

Description

Technical Field

[0001] The present invention relates to the technical field of obstacle removal instruments, and specifically to a remote laser obstacle remover. Background Art

[0002] Remote laser obstacle removers are mainly used for non-contact removal of foreign objects or pollutants on the surface of objects. Typical scenarios include: the power industry: removing plastic films, kite strings, bird nests, etc. on high-voltage cables to avoid short-circuit risks, removing ice layers and oil stains on tracks or catenaries.

[0003] In the existing laser obstacle removers (such as: CN211955951U, CN213780559U), in some special environments, such as when branches press on electric wires or overhead lines caused by snow accumulation, during the construction process, when the laser obstacle remover raises its head to work, snowflakes are likely to fall on the lens, affecting the operation of the instrument, and problems such as dew condensation are likely to occur on the lens of the obstacle remover. The common practice in the existing technology to address this technical problem is to coat a layer of anti-dew condensation coating on the lens. However, due to conflicts between the anti-dew condensation coating and optical properties, for example, coating interference: the anti-dew condensation coating (such as a hydrophobic film or a conductive heating layer) may change the light transmittance or refractive index of the lens, especially for high-power lasers. The coating material may absorb or scatter laser energy, and part of the energy is absorbed when the laser penetrates the coating, reducing the obstacle removal efficiency; secondly, thermal damage: the coating may carbonize, peel off, or even burn the lens after absorbing heat. There is also poor compatibility in the broad spectral range: the laser obstacle remover needs to be adapted to different wavelengths (such as fiber laser 1μm, CO2 laser 10.6μm), while the anti-dew condensation coating is usually optimized only for specific bands. Therefore, in an ice and snow environment, interference factors such as snowflakes, dew condensation, ice layers, and fog will appear on the surface of the obstacle remover lens, greatly affecting the construction operation of the obstacle remover. Summary of the Invention

[0004] In order to achieve the above object, the present invention provides the following technical solution: A remote laser obstacle remover, comprising:

[0005] A laser emission box and the emission device inside it, the output end of the emission device is equipped with a straight tube; a spherical lens placed inside the straight tube, there is a protection channel between the spherical lens and the opening of the lens barrel, and the axis of the protection channel is collinear with the main axis of the spherical lens; the outer wall of the straight tube is rotatably sleeved with a lens barrel, the opening of the lens barrel matches the shell of the laser emission box; an exhaust channel for outputting dry air or nitrogen into the protection channel is designed on the inner wall of the lens barrel, and the intake angle of the exhaust channel can drive the dry air or nitrogen to be discharged from the inside to the outside, forming an air column protection for the spherical lens.

[0006] Optionally, the protection channel includes a contraction section, a stabilization section, and a diffusion section from the inside out. The cross-section of each part of the protection channel is circular. An air collection ring is designed inside the straight tube. A plurality of conversion channels are opened on the straight tube, and the plurality of conversion channels are in one-to-one correspondence and communication with the exhaust channel. The air collection ring is associated with an external high-pressure gas source.

[0007] Optionally, a mirror frame sleeve is fixedly installed inside the straight tube. The mirror frame sleeve is in communication with the output end of the emission device. The spherical lens is installed at the end of the mirror frame sleeve. A micro servo motor is fixedly installed on the outer wall of the mirror frame sleeve. The output end of the micro servo motor is drivingly connected to a rotating shaft. The axis of rotation of the rotating shaft is collinear with the diameter line of the mirror frame sleeve. A bracket is also rotatably installed on the outer wall of the mirror frame sleeve. A flexible wiper is designed on the bracket. When the flexible wiper swings, it mechanically scratches the exposed surface of the spherical lens. The bracket is fixedly connected to the outer wall of the rotating shaft, and the bracket controls the swing of the flexible wiper.

[0008] Optionally, a plurality of cleaning channels are also opened on the inner wall of the lens barrel. The output ends of the plurality of cleaning channels communicate with the inside of the protection channel, and the unit output direction of the cleaning channels faces the exposed surface of the spherical lens. When the lens barrel rotates to a preset angle, the plurality of cleaning channels can be in one-to-one correspondence and communication with the plurality of conversion channels. At this time, one end of the exhaust channel is blocked by the outer wall of the straight tube.

[0009] Optionally, the flexible wiper is made of a self-lubricating material. The working outer wall of the flexible wiper is a curved surface, and the curvature of the curved surface of the flexible wiper is equal to the curvature of the spherical lens.

[0010] Optionally, a plurality of fiber heating strips are embedded inside the lens barrel. The plurality of fiber heating strips are distributed in a circumferential array. The circumferential center line is consistent with the center line of the protection channel, and the vertical distance from the fiber heating strips to the inner wall of the protection channel is equal everywhere. The fiber heating strips are powered by an external power source.

[0011] Optionally, the inner diameter of the opening of the contraction section is larger than the inner diameter of the opening of the diffusion section. The inner walls of the contraction section, the stabilization section, and the diffusion section are all smooth curved surfaces.

[0012] Optionally, the lens barrel has a ferrule part. The ferrule part is rotatably sleeved on the outer wall of the straight tube. A lens barrel cover is sleeved at the open end of the lens barrel.

[0013] The present invention provides a remote laser obstacle clearing instrument, which has the following beneficial effects compared with the prior art:

[0014] 1. The telescopic barrel is extended and the spherical lens is retracted inward so that the spherical lens is placed at a safe position inside the barrel, reducing the direct exposure area of the spherical lens. The built-in spherical lens is actually equivalent to a design without a spherical lens, reducing the interference of external factors on the spherical lens. Secondly, the protection channel also provides a distance barrier for the entry of interference factors, increasing the difficulty of the entry of interference factors. Importantly, the protection channel also provides a channel for the flow of dry air or nitrogen, thereby forming an air column barrier to greatly avoid the entry of external interference factors, ensuring that the spherical lens can work normally in an ice and snow environment.

[0015] 2. By adopting the design of a contraction section, a stabilization section and a diffusion section, a structure similar to a de Laval nozzle is formed, enabling the protection channel of the barrel to form a converging-to-diverging flow channel. The airflow is accelerated by gradually contracting, then smoothed by the stabilization section and diffused, reducing the turbulence intensity and the interference with laser transmission. Secondly, by designing multiple conversion channels and exhaust channels, a plurality of evenly distributed air inlets are formed around the axis of the protection channel to avoid local air pressure instability.

[0016] 3. When the barrel rotates, the conversion channel can be selectively connected between the exhaust channel and the cleaning channel, switching between the air column protection and the anti-cleaning function of the spherical lens. Secondly, the cleaning of the cleaning channel can also be combined with a mechanical scraping process to more efficiently clean the exposed surface of the spherical lens.

[0017] 4. The equal-spacing design of the fiber heating strip and the inner wall of the protection channel enables the bracket to heat the inner wall of the protection channel more evenly, quickly creating a warm environment inside the barrel, the protection channel and the straight barrel. In addition, the present invention has many other beneficial effects, which will be described in detail below in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the laser emission box of the obstacle clearing instrument in the present invention;

[0019] Figure 2 is a three-dimensional structural schematic diagram of the emission device and the barrel in the present invention;

[0020] Figure 3 is an assembly schematic diagram of the straight barrel and the barrel in the present invention;

[0021] Figure 4 is in the present invention Figure 3 right view structural schematic diagram;

[0022] Figure 5 is along the present invention Figure 4 cross-sectional structural schematic diagram taken at A-A in;

[0023] Figure 6Schematic diagram of the structure after the conversion channel and the cleaning channel of the present invention are docked;

[0024] Figure 7 Internal sectional view of the present invention;

[0025] Figure 8 Schematic diagram of the flexible wiper and the bracket in the present invention;

[0026] Figure 9 For the present invention Figure 8 right view;

[0027] Figure 10 For the present invention along Figure 9 Schematic diagram of the sectional structure at B-B in;

[0028] Figure 11 Schematic diagram of the position distribution of the limit heating strip in the present invention.

[0029] In the figure: 1, laser emission box; 2, emission device; 3, straight tube; 4, lens barrel; 5, spherical lens; 6, protection channel; 7, conversion channel; 8, exhaust channel; 9, lens holder sleeve; 11, cleaning channel; 12, fiber heating strip; 13, bracket; 14, flexible wiper; 15, rotating shaft. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be particularly noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present invention are only for the purpose of illustration and do not represent the only implementation manner.

[0032] Meanwhile, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention pertains. The terms used in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more of the related listed items.

[0035] Please refer to Figures 1 to 11 , the present invention provides a technical solution: a remote laser obstacle clearing instrument, comprising:

[0036] The laser emission box 1 and the emission device 2 located inside it. The output end of the emission device 2 is fixedly or detachably assembled on one side of the straight tube 3. The outer wall of the other side of the straight tube 3 is rotatably sleeved on one side of the lens barrel 4. The lens 5 is placed inside the straight tube 3. There is a protection channel 6 between the lens 5 and the other side of the lens barrel 4. The axis of the protection channel 6 is collinear with the main axis of the lens 5. The protection channel 6 is actually all or part of the inner hole of the lens barrel 4. An exhaust channel 8 for outputting dry air or nitrogen into the protection channel 6 is designed on the inner wall of the lens barrel 4. The intake angle of the exhaust channel 8 can drive the dry air or nitrogen to be discharged from the inside of the barrel to the outside of the barrel, forming an air column protection for the lens 5. Among them, the emission device 2 can be realized by an existing laser emission device, and the present application does not make specific limitations on this. Among them, the shape of the laser emission box 1 can be selected differently according to actual needs, such as a cuboid, a cylinder, etc., and the present application does not make limitations on this. Among them, the laser emission box 1 has a cavity for accommodating components such as the emission device 2, the straight tube 3, the lens barrel 4, and the spherical lens 5 (that is, all components of this obstacle clearing instrument are placed inside the laser emission box 1), and there is a specific opening on the outer shell of the laser emission box 1. The shape of the opening is the same as or adapted to the shape of the lens barrel 4, so that the laser can be emitted from the opening of the outer shell.

[0037] In the prior art, in order to avoid the interference of the ice and snow environment on the spherical lens, the coating method is often used to avoid phenomena such as fogging, dew condensation, and icing of the spherical lens. However, the coating is likely to cause interference to the operation of the laser. Therefore, in this solution, the lens barrel 4 is extended and the lens 5 is withdrawn inward, so that the lens 5 is placed at a safe position inside the lens barrel 4. On the one hand, it can reduce the direct exposure area of the lens 5 and reduce the interference of external factors on the spherical lens 5. On the other hand, the protection channel 6 also provides a distance barrier for the entry of interference factors, increasing the difficulty of the entry of interference factors. More importantly, the protection channel 6 also provides a channel for the flow of dry air or nitrogen, so as to be able to form an air column barrier, further greatly avoiding the entry of external interference factors, and greatly reducing the occurrence of phenomena such as fogging, dew condensation, and icing of the lens 5, enabling it to work normally in the ice and snow environment.

[0038] Compared with the traditional interception air curtain, which can only perform horizontal interception at a certain position in the flow path of the interference factor, the interception air curtain may bring external particles into the inside, and long-term accumulation may affect the optical performance. The above-mentioned laser obstacle clearing instrument designed in this solution has beneficial effects in avoiding phenomena such as fogging, dew condensation, and icing, and in avoiding the entry of external interference factors.

[0039] Furthermore, in a more preferred embodiment, the present application has made important improvements to the protection channel 6. Initially, the shape of the protection channel 6 designed for the laser obstacle remover was cylindrical. However, after a period of testing, it was found that in some laser obstacle removers with a cylindrical protection channel 6, there were poor effects of local laser refraction or scattering. Through research and analysis, the reason for this problem was finally found, that is, during the formation of the air column, there was a relatively serious turbulence phenomenon locally, and the turbulence would interfere with the laser transmission, such as refraction or scattering. Based on this, the present solution further modifies the protection channel 6 to further improve the flow capacity of the protection channel 6. Please refer to Figures 5 to 7 , from the inside to the outside, the protection channel 6 includes a contraction section, a stabilization section, and a diffusion section. The cross-section of each part of the protection channel 6 is circular. An air collecting ring is designed inside the straight tube 3, and a plurality of conversion channels 7 are opened on the straight tube 3. The plurality of conversion channels 7 are in one-to-one correspondence and communication with the exhaust channel 8. The air collecting ring is associated with an external high-pressure gas source. By adopting the design of the contraction section, the stabilization section, and the diffusion section, a structure similar to a Laval nozzle is formed, so that the protection channel 6 of the lens barrel 4 can form a gradually shrinking to gradually expanding flow channel. By gradually contracting to accelerate the air flow, and then being smoothed by the stabilization section and diffused, the turbulence intensity is reduced, and the interference with the laser transmission is reduced. Secondly, by designing a plurality of conversion channels 7 and the exhaust channel 8, a plurality of uniformly distributed air inlets are formed around the axis of the protection channel 6, avoiding local air pressure instability and interfering with the laser transmission. Secondly, a quick external connection design can also be added to support the external connection of an air pump or a compressed gas tank, which is convenient for maintenance or replacement.

[0040] In a further preferred embodiment, the inner diameter of the opening of the contraction section is larger than the inner diameter of the opening of the diffusion section. The protection channel 6 becomes narrower from wide, accelerating the air flow and increasing the kinetic energy at the outlet, while not interfering with the construction operation of the spherical lens 5. The inner walls of the contraction section, the stabilization section, and the diffusion section are all smooth curved surfaces.

[0041] In a further preferred embodiment, a lens frame sleeve 9 is fixedly installed inside the straight tube 3. The lens frame sleeve 9 is communicated with the output end of the transmitting device 2. The lens 5 is installed at the end of the lens frame sleeve 9. A micro servo motor is fixedly installed on the outer wall of the lens frame sleeve 9. The output end of the micro servo motor is drivingly connected with a rotating shaft 15. The rotation axis of the rotating shaft 15 is collinear with the diameter line of the lens frame sleeve 9. A bracket 13 is also rotatably installed on the outer wall of the lens frame sleeve 9. A flexible wiper 14 is designed on the bracket 13. When the flexible wiper 14 swings, it mechanically scrapes the exposed surface of the lens 5. The bracket 13 is fixedly connected to the outer wall of the rotating shaft 15, and the bracket 13 controls the swing of the flexible wiper 14. Please refer to Figures 8 to 10, in this embodiment, a physical method for cleaning the lens 5 is provided. In an ice and snow scene, the air column is activated. When snowfall is detected (which can be detected by components such as sensors and inductors, and this technology can be implemented using existing technologies), the air column is formed and dry air or nitrogen is ejected at a preset flow rate. Secondly, the snowflakes are blocked by the air column and blown away from the axis of the lens barrel, and the laser beam penetrates without interference. Then, for collaborative protection, mechanical scraping is activated to remove accidentally attached ice crystals and improve the protection ability. Specifically, please refer to Figures 5 to 8 , in this embodiment, the micro servo motor is used as the power source, and the rotating shaft 15 transmits power. The rotating shaft 15 drives the bracket 13 and the flexible wiper 14 to swing, completing the mechanical scraping of the exposed surface of the lens 5. When the lens 5 is working, the flexible wiper 14 rotates to one side and hides inside the straight barrel 3 and the lens barrel 4, without interfering with the normal focusing function of the lens 5. After working for a period of time, the rotating shaft 15 is activated, the obstacle clearing device stops for repair, and the spherical lens 5 is mechanically scraped.

[0042] It should be specifically noted that the lens adopted in this application is preferably a spherical lens. A spherical lens refers to an optical element whose inner and outer surfaces are both spherical, or one surface is spherical and the other surface is flat. Its surface is a part of a sphere and has a simple geometric shape, which is convenient for manufacturing and analysis. Spherical lenses are commonly used in optical instruments, photographic equipment, medical endoscopes, and laser systems. In a laser obstacle clearing device, the function of the spherical lens is to focus and guide the laser beam. In this embodiment, please refer to Figure 10 , the figure shows the radius of curvature C of the spherical lens 5. When the rotating shaft 15 is activated, the flexible wiper 14 uses the radius of curvature C as the scanning radius to mechanically clean the mirror surface of the spherical lens 5.

[0043] Secondly, it can be further noted that spherical aberration generally exists in the spherical lens 5. Therefore, an interference fit can be configured between the flexible wiper 14 and the spherical lens 5 to enable them to fit tightly, so as to improve the quality of mechanical cleaning. Further, the flexible wiper 14 is made of a self-lubricating material. The working outer wall of the flexible wiper 14 is a curved surface, and the curvature of the curved surface of the flexible wiper 14 is equal to the curvature of the spherical lens 5. Since the wear or jamming of the flexible wiper 14 may cause pollution to the surface of the spherical lens 5, the flexible wiper 14 can be coated with PTEE, which has a self-lubricating effect, thereby improving the protection and cleaning ability of the spherical lens 5. Due to its low friction coefficient and low surface energy, the PTEE coating has a smoother sliding and non-stickiness. The curvature design of the flexible wiper 14 can fit the spherical lens 5 more closely, improving the scraping quality.

[0044] In a further preferred embodiment, a plurality of cleaning channels 11 are further formed in the inner wall of the lens barrel 4. The output ends of the plurality of cleaning channels 11 communicate with the inside of the protection channel 6, and the unit output direction of the cleaning channels 11 faces the exposed surface of the spherical lens 5. When the lens barrel 4 rotates to a preset angle, the plurality of cleaning channels 11 can correspond to and communicate with the plurality of conversion channels 7 one by one. At this time, one end of the exhaust channel 8 is blocked by the outer wall of the straight barrel 3. Please refer to Figure 6 and Figure 7 . In this embodiment, when the obstacle clearing instrument stops for repair, the cleaning channels 11 can be used to clean the exposed surface of the spherical lens 5. By rotating and switching, when the lens barrel 4 rotates, the conversion channel 7 can selectively communicate between the exhaust channel 8 and the cleaning channels 11, so as to switch between the functions of air column protection and spherical lens cleaning. Secondly, the cleaning of the cleaning channels 11 can also be combined with the mechanical scraping process, so as to more efficiently clean the exposed surface of the spherical lens 5.

[0045] In a more preferred embodiment, a plurality of fiber heating strips 12 are embedded in the lens barrel 4. The plurality of fiber heating strips 12 are arranged in a circumferential array, and the circumferential center line is consistent with the center line of the protection channel 6, and the vertical distance from each fiber heating strip 12 to the inner wall surface of the protection channel 6 is equal everywhere. The fiber heating strips 12 are powered by an external power supply. In this embodiment, when the laser obstacle clearing instrument is operating in snowy weather (especially when the laser obstacle clearing instrument raises its head, snowflakes are likely to fall on the lens), at this time, the air column is started, and the air column is formed and sprays dry air or nitrogen at a preset flow rate. The snowflakes are blocked by the air column and blown away from the axis of the lens barrel, and the laser beam penetrates without interference. At the same time, the fiber heating strips 12 are used to heat the inside of the lens barrel 4 (protection channel 6). The beneficial effects of heating can achieve two points: one is to prevent the lens surface from condensing; the other is to make the inside of the protection channel 6 in a relatively stable and uniform temperature. The stable and uniform temperature is beneficial to reducing the occurrence of turbulent flow of the air flow in the protection channel 6, and further reducing the refraction or scattering interference caused to the laser emission. Specifically, in this solution, the equal-spacing design of the fiber heating strips 12 and the inner wall of the protection channel 6 enables the fiber heating strips 12 to heat the inner wall of the protection channel 6 more evenly, so as to quickly create a constant temperature environment in the protection channel 6 to avoid the invasion of cold air or snowflakes, and at the same time enable the spherical lens 5 to work in a relatively stable temperature environment, further reducing the interference to the laser emission.

[0046] Furthermore, the lens barrel 4 has a ferrule portion, and the ferrule portion is rotatably sleeved on the outer wall of the straight barrel 3. A lens barrel cover is sleeved on the open end of the lens barrel 4.

[0047] With the cooperation of the above structures, the air column can be used to protect or backwash the spherical lens 5 inside the lens barrel 4, and it can also be combined with the mechanical scraping of the flexible scraper 14 and the heating of the fiber heating strips 12.

[0048] Each of the technical features of the above-described embodiments can be arbitrarily combined. For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0049] The above-described embodiments only express several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A long-range laser obstacle remover, characterized in that: include: Laser emission box (1); An emitting device (2) located in the laser emitting box (1), wherein the output end of the emitting device (2) is equipped with a straight tube (3); A lens (5) is built into the straight barrel (3), a protective channel (6) is provided between the lens (5) and the opening of the lens barrel (4), and the axis of the protective channel (6) is colinear with the main axis of the lens (5); The outer wall of the straight tube (3) is rotatably sleeved with a lens barrel (4), and the opening of the lens barrel (4) matches the shell of the laser emission box (1); An exhaust channel (8) for outputting dry air or nitrogen into the protection channel (6) is designed on the inner wall of the lens barrel (4). The intake angle of the exhaust channel (8) can drive the dry air or nitrogen to be discharged from the inside to the outside, thereby forming an airflow column to protect the lens.

2. The remote laser obstacle remover according to claim 1, characterized in that: The protection channel (6) is respectively divided into a contraction section, a stabilization section and a diffusion section from the inside to the outside. The cross section of each part of the protection channel (6) is circular. An air collecting ring is designed inside the straight cylinder (3). A plurality of conversion channels (7) are provided on the straight cylinder (3). The plurality of conversion channels (7) are connected to the exhaust channel (8) in a one-to-one correspondence. The air collecting ring is associated with an external high-pressure air source.

3. The remote laser obstacle remover according to claim 1, characterized in that: The lens (5) is a spherical lens.

4. The remote laser obstacle remover according to claim 3, characterized in that: A frame sleeve (9) is fixedly mounted inside the straight tube (3), the frame sleeve (9) is connected to the output end of the emitting device (2), the spherical lens (5) is mounted at the end of the frame sleeve (9), a micro servo motor is fixedly mounted on the outer wall of the frame sleeve (9), the output end of the micro servo motor is drivingly connected to a rotating shaft (15), the rotating axis of the rotating shaft (15) is colinear with the radial line of the frame sleeve (9), a bracket (13) is also rotatably mounted on the outer wall of the frame sleeve (9), a flexible scraper (14) is designed on the bracket (13), and the flexible scraper (14) mechanically scrapes the exposed surface of the spherical lens (5) when swinging, the bracket (13) is fixedly connected to the outer wall of the rotating shaft (15), and the bracket (13) controls the swing of the flexible scraper (14).

5. The remote laser obstacle remover according to claim 2, characterized in that: The inner diameter of the opening of the contraction section is greater than the inner diameter of the opening of the diffusion section, and the inner walls of the contraction section, the stabilization section and the diffusion section are all smooth curved surfaces.

6. The remote laser obstacle remover according to any one of claims 1 to 5, characterized in that: The lens barrel (4) has a sleeve hoop portion, which is rotatably sleeved on the outer wall of the straight tube (3), and a lens barrel cover is sleeved on the open end of the lens barrel (4).

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