Radar mirror cleaning device and method

Abstract

The application discloses a radar lens cleaning device and a cleaning method, and belongs to the technical field of cloud detection equipment. The device comprises a supporting assembly, a cleaning assembly and a displacement assembly. The supporting assembly is arranged on a scanning head and is distributed on both sides of the lens along a first straight line direction. The cleaning assembly comprises a cleaning soft tube and a driving mechanism. The cleaning soft tube is detachably connected with the supporting assembly, and a cleaning surface is formed on the cleaning soft tube. The cleaning surface faces the lens. The driving mechanism can control the cleaning surface to move along the radial direction of the cleaning soft tube, so that the cleaning surface can contact or move away from the lens. The displacement assembly can drive the cleaning surface to reciprocate along a direction perpendicular to the first straight line direction and rub against the lens. The radar lens cleaning method adopts the above radar lens cleaning device, has high cleaning efficiency, can achieve better cleaning effect, and can protect the lens and avoid damaging the lens during the cleaning process.

Description

Technical Field

[0001] This invention relates to the field of cloud cover detection equipment technology, and in particular to a radar lens cleaning device and cleaning method. Background Technology

[0002] A lidar device for measuring cloud height and cloud cover is an instrument used to measure the height and amount of clouds in the atmosphere. It achieves this by emitting a laser beam and measuring its scattering and reflection in the atmosphere. Such a lidar device typically includes a laser transmitter, a receiver, and a data processing system. The laser beam emitted by the lidar passes through the atmosphere and is scattered by water droplets or ice crystals in the clouds. A portion of the laser beam is reflected back by particles in the clouds, thus allowing the measurement of cloud height and cloud cover. Lidar devices can typically measure clouds at different altitudes, from low to high clouds. Advantages of lidar devices include high precision, high resolution, and long-range measurement capabilities. They can perform measurements under various weather conditions and have wide applications in meteorology, climate research, and weather forecasting.

[0003] Existing radar detection devices typically have a laser emitter mounted on the scanning head. By controlling the rotation of the scanning head and emitting lasers, multi-dimensional cloud height and cloud cover data feedback is achieved, enabling accurate measurement of cloud height and cloud cover. However, during long-term use, the scanning lens can become contaminated by dust, rain, fog, oil, etc., requiring regular cleaning and maintenance to ensure the performance and accuracy of the scanning head.

[0004] Generally, cleaning the lens requires manual wiping with a cleaning cloth or cotton swab. However, manual cleaning is time-consuming, labor-intensive, inefficient, and relatively strenuous. The location of the scanning head module makes cleaning difficult and the process is dangerous. In addition, the cleaning may not be timely, affecting the detection results. On the other hand, using a robotic arm to wipe the lens with a cleaning cloth is difficult to control and can easily scratch or damage the lens. Summary of the Invention

[0005] The purpose of this invention is to provide a radar lens cleaning device and cleaning method to solve the technical problems of low efficiency of manual lens cleaning and easy damage to the lens by robotic arm cleaning in the prior art.

[0006] Based on the above concept, the technical solution adopted by this invention is as follows:

[0007] A radar lens cleaning device, comprising:

[0008] A support assembly is disposed on the scanning head and distributed on both sides of the lens along a first straight line direction;

[0009] A cleaning assembly includes a cleaning cylinder and a drive mechanism. The cleaning cylinder is detachably connected to the support assembly. A cleaning surface is formed on the cleaning cylinder, and the cleaning surface faces the lens. The drive mechanism can control the cleaning surface to move radially along the cleaning cylinder, so that the cleaning surface can contact or move away from the lens.

[0010] A displacement component, which can drive the cleaning surface to reciprocate along a direction perpendicular to a first straight line and rub against the lens.

[0011] The driving mechanism includes an air pump and an air inflator. The air inflator is connected to the inner cavity of the cleaning cartridge. The air pump can inflate the cleaning cartridge through the air inflator to make the cleaning cartridge expand, so that the cleaning surface contacts the lens.

[0012] The cleaning sleeve includes a fixed band and an elastic band, with an inflation cavity formed between the elastic band and the fixed band. The inflation pump is connected to the inflation cavity. When the inflation cavity is not inflated, the cleaning sleeve is sheet-like. When the inflation cavity is filled with gas, the elastic band expands and deforms, and the cleaning sleeve becomes cylindrical.

[0013] The support assembly includes a release roll and a retractable roll, which are respectively disposed on both sides of the lens. One end of the cleaning tube is connected to the release roll, and the other end of the cleaning tube is connected to the retractable roll. The sheet-shaped cleaning tube can be wound up in the release roll or the retractable roll.

[0014] The winding drum is equipped with a cutting blade that can cut through the cleaning tube, causing the gas in the inflation chamber to leak out, thus changing the cleaning tube from a cylindrical shape to a sheet shape.

[0015] The cleaning tube contains magnetic beads, and the displacement assembly includes two magnetic plates distributed on both sides of the lens. One of the magnetic plates is energized. When one of the magnetic plates is energized, it can attract the magnetic beads and move the cleaning tube closer to the energized magnetic plate.

[0016] The cleaning tube is provided with an elastic rope, which passes through the inner cavity of the cleaning tube and is connected to the support assembly. Multiple magnetic beads are arranged at intervals on the elastic rope.

[0017] The cleaning surface is provided with an adsorption layer, which is adhesive and can stick to impurities on the lens.

[0018] The cleaning surface has multiple ventilation holes, which are connected to the inner cavity of the cleaning tube.

[0019] A method for cleaning radar lenses, employing the aforementioned radar lens cleaning device, includes:

[0020] Step 1: Drive the drive mechanism to move the cleaning cylinder closer to the lens, so that the cleaning surface comes into contact with the lens;

[0021] Step 2: Drive the displacement component to move the cleaning cylinder back and forth along a direction perpendicular to the first straight line, so that the cleaning surface rubs against the lens, thereby cleaning the lens.

[0022] The beneficial effects of this invention are:

[0023] The radar lens cleaning device proposed in this invention first drives a driving mechanism to move a cleaning soft cylinder close to the lens, bringing the cleaning surface into contact with the lens. Then, a displacement component is driven, causing the cleaning soft cylinder to reciprocate along a direction perpendicular to a first straight line, resulting in repeated friction between the cleaning surface and the lens, thus achieving the lens cleaning process. The coordinated operation of the support component, cleaning component, and displacement component achieves high cleaning efficiency, and the repeated friction between the cleaning surface and the lens provides a better cleaning effect, avoiding the low efficiency and poor cleaning effect of manual cleaning. Furthermore, the flexible cleaning hose reduces the load on the contact surface, protecting the lens and preventing damage caused by rigid contact between the robotic arm and the lens. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the radar structure provided in Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the radar lens cleaning device provided in Embodiment 1 of the present invention. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the radar lens cleaning device provided in Embodiment 1 of the present invention. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the radar lens cleaning device provided in Embodiment 1 of the present invention after the cleaning soft tube is hidden;

[0028] Figure 5 This is a schematic diagram of the structure of the support component and the cleaning soft tube provided in Embodiment 1 of the present invention;

[0029] Figure 6This is a side view of the cleaning tube after expansion provided in Embodiment 1 of the present invention;

[0030] Figure 7 This is a partial structural diagram of the cleaning surface of the cleaning tube provided in Embodiment 1 of the present invention;

[0031] Figure 8 This is a schematic diagram of the expanded cleaning tube provided in Embodiment 1 of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the shaped tube provided in Embodiment 1 of the present invention;

[0033] Figure 10 This is a cross-sectional view of the shaped tube provided in Embodiment 1 of the present invention;

[0034] Figure 11 This is a partial structural diagram of the cleaning component provided in Embodiment 2 of the present invention. Figure 1 ;

[0035] Figure 12 This is a partial structural diagram of the cleaning component provided in Embodiment 2 of the present invention. Figure 2 ;

[0036] Figure 13 This is a schematic diagram of the structure of the cleaning component and the elastic rope provided in Embodiment 2 of the present invention.

[0037] In the picture:

[0038] 100. Scanning head; 101. Lens;

[0039] 10. Support assembly; 11. Release drum; 111. Release chamber; 112. Support plate; 1121. Release port; 113. Adsorption top plate; 12. Retraction drum; 121. Retraction chamber; 122. Shaping tube; 123. Sealing plate; 124. Sealing ring; 125. Drain pipe; 126. Sponge body; 13. Cutting blade;

[0040] 20. Cleaning assembly; 21. Cleaning sleeve; 201. Fixing strap; 202. Elastic band; 211. Cleaning surface; 212. Adsorption layer; 213. Vent hole; 214. Elastic rope; 2141. First tube body; 2142. Second tube body; 215. Electromagnetic force block; 216. Adsorption iron block; 217. Magnetic bead; 218. Liquid permeation hole; 22. Air inlet tube;

[0041] 31. Adsorption magnetic plate

[0042] 40. Cleaning assembly; 41. Elastic ball; 42. Injection tube; 43. One-way valve body. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] This invention provides a radar lens cleaning device that can clean the lens located on the radar scanning head without damaging the lens.

[0048] See Figure 1 The radar applicable to this embodiment includes a power supply box, a control box, a scanning head 100, and a measurement module. The power supply box has a built-in power component that provides power to the entire device. The control box has a built-in control unit. The scanning head 100 has a block-shaped container in appearance and contains a laser emitter and a receiver inside. A lens 101 is installed on the scanning head 100. The power component is used to provide power for the operation of the various components of the radar in this application. The control unit plays the role of controlling the coordinated operation of the various components of the radar. These are all prior art and will not be described in detail here.

[0049] See Figures 1 to 3The radar lens cleaning device provided in this embodiment of the invention includes a support assembly 10, a cleaning assembly 20, and a displacement assembly. The radar includes a scanning head 100, and the lens 101 to be cleaned is disposed on the radar's scanning head. The support assembly 10 is disposed on the scanning head 100 and distributed along a first straight line on both sides of the lens 101. The cleaning assembly 20 includes a cleaning cylinder 21 and a driving mechanism. The cleaning cylinder 21 is detachably connected to the support assembly 10. A cleaning surface 211 is formed on the cleaning cylinder 21, facing the lens 101. The driving mechanism can control the cleaning surface 211 to move radially along the cleaning cylinder 21, allowing the cleaning surface 211 to contact or move away from the lens 101. The displacement assembly can drive the cleaning surface 211 to reciprocate along a direction perpendicular to the first straight line and rub against the lens 101.

[0050] The radar lens cleaning device proposed in this invention first drives the driving mechanism to move the cleaning soft cylinder 21 close to the lens 101, so that the cleaning surface 211 abuts against the lens 101. Then, the displacement component is driven, which drives the cleaning soft cylinder 21 to reciprocate along a direction perpendicular to the first straight line, so that the cleaning surface 211 repeatedly rubs against the lens 101, thereby realizing the cleaning process of the lens 101. The lens 101 is cleaned by the coordinated cooperation of the support component 10, the cleaning component 20 and the displacement component, which has high cleaning efficiency. Moreover, the repeated friction between the cleaning surface 211 and the lens 101 has a better cleaning effect, avoiding the problems of low efficiency and poor cleaning effect of manual cleaning. In addition, the cleaning soft hose is made of soft material, and the contact surface of the cleaning hose with the lens 101 can be less loaded, thereby protecting the lens 101 and avoiding the problem of rigid contact between the robotic arm and the lens 101, which can easily damage the lens 101.

[0051] In this embodiment, for ease of processing and design, the lens 101 is set as a rectangle. For the convenience of describing with reference to the accompanying drawings, the length direction of the lens 101 is defined as the first straight line direction, and the width direction of the lens 101 is perpendicular to the first straight line direction. The directions described below are based on the directions shown in the accompanying drawings, but are not limited thereto.

[0052] Regarding the cleaning assembly 20, it is used to perform the cleaning process on the lens 101 without damaging its surface. The drive mechanism includes an air pump and an air inlet tube 22. The air inlet tube 22 connects to the inner cavity of the cleaning cartridge 21. The air pump inflates the cleaning cartridge 21 through the air inlet tube 22, causing it to expand and allowing the cleaning surface 211 to contact the lens 101. By inflating the cleaning cartridge 21 with the air pump, the degree of expansion can be adjusted as needed, ensuring that the cleaning surface 211 contacts the lens 101 with appropriate force, thus guaranteeing cleaning effectiveness while avoiding damage to the lens 101. Furthermore, the amount of air inflated can be adjusted according to the position of the cleaning cartridge 21 relative to the lens 101 to regulate the degree of expansion, providing better adaptability. The use of the air pump also allows the cleaning cartridge 21 to fit tightly against the surface of the lens 101, improving cleaning efficiency and making it easier to remove dust and stains from the lens 101. In addition, compared to rigid cleaning tools, the inflated cleaning tube 21 is more flexible, reducing the risk of scratching the lens 101 during the cleaning process and providing better safety.

[0053] See Figure 2 and Figure 3 Regarding the displacement component, it is used to move the cleaning cylinder 21 along the width direction of the lens 101, thereby achieving a comprehensive cleaning effect on the surface of the lens 101. The cleaning cylinder 21 contains magnetic beads 217. The displacement component includes two magnetic plates 31, distributed on both sides of the lens 101. One of the magnetic plates 31 is energized. When one magnetic plate 31 is energized, it attracts the magnetic beads 217, causing the cleaning cylinder 21 to move closer to the energized magnetic plate 31. Furthermore, driving the cleaning cylinder 21 to move via electromagnetic attraction avoids direct contact between the driving device and the lens 101, preventing damage to both during operation and ensuring higher safety. In use, by intermittently energizing the two magnetic plates 31, the cleaning cylinder 21 can move back and forth between them, causing the cleaning surface 211 to repeatedly rub against the lens 101, achieving a cleaning effect. In other embodiments, the displacement component may also be configured as an electric push rod, cylinder or other device to drive the cleaning cylinder 21 to move, which is not limited here.

[0054] See Figure 4Specifically, an elastic rope 214 is provided inside the cleaning tube 21. The elastic rope 214 passes through the inner cavity of the cleaning tube 21 and is connected to the support assembly 10. Multiple magnetic beads 217 are arranged at intervals on the elastic rope 214. One end of the elastic rope 214 is fixed to the center of the sealing plate 123. An adsorption top plate 113 is also provided on the support plate 112. The adsorption top plate 113 extends perpendicularly to the support plate 112 and is located above it. The other end of the elastic rope 214 is magnetically connected to the adsorption top plate 113. The extension direction of the elastic rope 214 coincides with the axis of the cleaning tube 21, so that the cleaning tube 21 is subjected to uniform force during movement and has better stability.

[0055] See Figure 5 and Figure 6 Specifically, for ease of transportation and installation, the cleaning sleeve 21 includes a fixing strap 201 and an elastic strap 202. An inflation chamber is formed between the elastic strap 202 and the fixing strap 201. An air pump is connected to the inflation chamber. When the inflation chamber is not inflated, the cleaning sleeve 21 is sheet-like. When the inflation chamber is filled with gas, the elastic strap 202 expands and deforms, and the cleaning sleeve 21 becomes cylindrical.

[0056] Before or after cleaning, the operator can release the gas from the inflation chamber, causing the cleaning cartridge 21 to become sheet-like for easier transport and recycling, improving space utilization and avoiding the risk of accidental tearing due to its large size during installation or transportation. Furthermore, in this embodiment, the cleaning cartridge 21 is positioned above the lens 101, with only the lower side of the cartridge forming the cleaning surface 211 in contact with the lens 101 to achieve the cleaning process. Therefore, the cleaning cartridge 21 includes a fixing strap 201 and an elastic strap 202, with the elastic strap 202 positioned below the fixing strap 201. The fixing strap 201 can be made of a rigid material that does not deform. When the cleaning cartridge 21 is inflated, the fixing strap 201 remains unchanged, while the elastic strap 202 deforms and expands, allowing the cleaning surface 211 to contact the lens 101. This design reduces inflation volume, improves inflation efficiency, and saves energy, while also increasing space utilization. Furthermore, the fixing strap 201 supports the elastic strap 202, enhancing the stability of the cleaning sleeve 21. In this embodiment, the elastic strap 202 is made of rubber, which possesses good elasticity and toughness, facilitating expansion and deformation. The rubber material also exhibits high friction, improving the removal of dust from the lens 101. Notably, in this embodiment, the width of the fixing strap 201 is 0.5 to 0.8 times the width of the elastic strap 202, thus facilitating the expansion of the elastic strap 202.

[0057] In other embodiments, when both the upper and lower surfaces of the cleaning sleeve 21 need to perform a cleaning function, the cleaning sleeve 21 can also be configured as two elastic bands 202 spliced ​​together, with a cleaning surface 211 provided on each elastic band 202. When the air pump inflates the air chamber, both elastic bands 202 deform and expand, so that each cleaning surface 211 contacts the corresponding lens 101, thereby achieving a cleaning effect.

[0058] Furthermore, regarding the cleaning surface 211, the cleaning surface 211 is disposed on the surface of the elastic band 202. When the elastic band 202 expands and deforms, the cleaning surface 211 can contact the lens 101 for cleaning.

[0059] See Figure 7 After prolonged storage, dust and other impurities may accumulate on the surface of the lens 101. To remove these impurities, an adsorption layer 212 is provided on the cleaning surface 211. This adsorption layer 212 is adhesive and can adhere to the impurities on the lens 101. In this embodiment, the adsorption layer 212 is designed as a self-adhesive layer, which can maintain its adhesiveness for a long time and provides a good cleaning effect.

[0060] In addition, a wiping cloth is provided on the cleaning surface 211. Multiple wiping cloths are arranged at intervals along the length of the cleaning surface 211. The wiping cloths are rectangular, and their length direction is the same as that of the cleaning surface 211. The width of the wiping cloth is greater than 0.3 times the perimeter of the longitudinal section of the cleaning hose before expansion, thus giving the wiping cloth a larger contact area, allowing it to fully contact the lens 101 and achieving a better cleaning effect. In this embodiment, the wiping cloth is made of cotton or paper.

[0061] The length of the wiping cloth is 0.7 to 0.9 times the distance between the release roll 11 and the take-up roll 12; the distance between adjacent wiping cloths is greater than the length of the wiping cloth. This allows the wiping cloths to be distributed in a dispersed manner, avoiding the wiping cloths being concentrated in one place, which would affect the installation of other components on the cleaning surface 211.

[0062] See Figure 7 and Figure 8 To further optimize the cleaning effect, multiple ventilation holes 213 are provided on the cleaning surface 211, which are connected to the inner cavity of the cleaning cylinder 21. The ventilation holes 213 penetrate the cleaning surface 211 along its thickness direction, and their diameter is less than 2 mm. Multiple rows of ventilation holes 213 are arranged at intervals along the length of the cleaning surface 211, with each row having multiple ventilation holes 213 at intervals along the width of the cleaning surface 211. Therefore, before removing debris from the lens 101, the air pump can be controlled to pump air into the inner cavity of the cleaning cylinder 21, causing the air from the cleaning cylinder 21 to be ejected from the ventilation holes 213 and blow away the floating dust on the lens 101.

[0063] It is worth noting that the inflation rate of the air pump into the inflation chamber must be greater than the rate at which the gas flows out of the vent 213, so as to avoid air leakage and collapse of the cleaning tube 21.

[0064] A cleaning cartridge 21 is mounted on a support assembly 10, which includes a release roll 11 and a retraction roll 12. The release roll 11 and retraction roll 12 are respectively positioned on opposite sides of the lens 101. One end of the cleaning cartridge 21 is connected to the release roll 11, and the other end is connected to the retraction roll 12. The sheet-like cleaning cartridge 21 can be wound up in either the release roll 11 or the retraction roll 12. Through the release roll 11 and the retraction roll 12, the cleaning cartridge 21 can be easily unfolded and retracted, improving operational convenience and cleaning efficiency. When not in use, the cleaning cartridge 21 can be rolled up, occupying little space and facilitating storage and maintenance. Furthermore, it is adaptable to lenses 101 of different sizes and shapes, and can be fitted by adjusting the release and retraction lengths, providing better adaptability.

[0065] Specifically, the release spool 11 includes a release chamber 111 and a support plate 112. The support plate 112 extends perpendicularly to the lens 101 and is fixedly mounted on the scanning head 100. The release chamber 111 is mounted on the support plate 112 and has a storage space for storing the cleaning cartridge 21. The release chamber 111 has an open end for releasing the cleaning cartridge 21. The support plate 112 has a release port 1121 that penetrates the support plate 112 along the thickness direction. The open end of the release chamber 111 is connected to the release port 1121, and the cleaning cartridge 21 can be released from the open end and pass through the release port 1121.

[0066] The retractable reel 12 includes a retractable chamber 121 and a shaping tube 122. The retractable chamber 121 has a retractable space for retracting the cleaning cartridge 21. The retractable chamber 121 has a retractable opening that connects to the shaping tube. The shaping tube 122 has a semi-circular cross-section with its arc-shaped end facing downwards. One end of the cleaning cartridge 21 is located in the storage space of the release chamber 111, and the other end of the cleaning cartridge 21 passes through the release port 1121, through the shaping tube 122, and connects to the retractable space. The shaping tube 122 can shape the cleaning cartridge 21, making it semi-cylindrical after inflation, so that the cleaning surface 211 is arc-shaped. The arc-shaped cleaning surface 211 can better contact the surface of the lens 101, improving the cleaning effect. Secondly, the arc-shaped cleaning surface 211 helps to evenly distribute pressure, reducing damage to the surface of the lens 101. Furthermore, it can adapt to different contours of the lens 101 surface, ensuring comprehensive and uniform cleaning. It is understood that the shape of the cleaning sleeve 21 depends on the shaping tube 122. In some embodiments, the cleaning sleeve 21 can be set to a cylindrical or elliptical cylindrical shape according to actual needs, and no limitation is made here.

[0067] Regarding the shaping tube 122, further, the length direction of the shaping tube 122 is the same as the length direction of the cleaning sleeve 21; the diameter of the shaping tube 122 is more than 1.4 times the diameter of the cleaning sleeve 21 before expansion.

[0068] The reel 12 can only reel in sheet-shaped cleaning cartridges 21. Therefore, to facilitate reeling, after cleaning, the cleaning cartridge 21 needs to be deflated to become sheet-shaped before being reeled into the reel compartment 121. Specifically, the reel 12 is equipped with a cutting blade 13, which can cut the cleaning cartridge 21, causing the gas in the inflation chamber to escape, thus changing the cleaning cartridge 21 from a cylindrical shape to a sheet shape. By providing a cutting blade 13 on the reel 12, the gas in the inflation chamber can be quickly released by cutting the cleaning cartridge 21, enabling a rapid and effective change of the cleaning cartridge 21 from a cylindrical shape to a sheet shape, improving cleaning efficiency and convenience. In some embodiments, a venting needle or venting nail can also be provided on the reel 12 to puncture the cleaning cartridge 21 and change it to a sheet shape; this will not be elaborated further here.

[0069] See Figure 9 and Figure 10In this embodiment, the cutting blades 13 are disposed on both sides of the shaping tube 122. A sealing plate 123 is disposed on the end of the shaping tube 122 near the convergence chamber 121 to seal the shaping tube 122 and prevent gas leakage. An air inlet is provided on the sealing plate 123, and the inflation pipe 22 is connected to the air inlet. In addition, in order to ensure that the gas inside the cleaning soft tube 21 does not leak, a sealing ring 124 is fixed on the outer wall of the shaping tube 122. The sealing ring 124 is a rigid ring body, which is disposed tightly against the shaping tube 122 and has an approximately triangular cross-section. The inner wall of the cleaning soft tube 21 is tightly attached to the sealing ring 124. The sealing ring 124 seals the end of the cleaning soft tube 21, thereby preventing gas leakage inside the cleaning soft tube 21.

[0070] Example 2

[0071] See Figures 11 to 13 This embodiment provides a radar lens cleaning device, wherein the same or corresponding components as in Embodiment 1 are marked with the same reference numerals as in Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The difference is that after prolonged use of the radar, an oil film may form on the lens 101. It is difficult to thoroughly clean the oil film by spraying and wiping. However, if a nozzle capable of spraying cleaning fluid toward the lens 101 and a liquid pump connected to the nozzle are directly added to the scanning head 100, the cost is high, the nozzle is prone to clogging, the failure rate is relatively high, and maintenance is inconvenient.

[0072] See Figure 11 and Figure 12 The radar lens cleaning device is also equipped with a cleaning component 40, which includes a cleaning liquid tank, a pump, and an injection pipe 42. The sealing plate 123 has an injection port. The outlet end of the injection pipe 42 passes through the injection port and communicates with the inner cavity of the cleaning soft cylinder 21. The inlet end of the injection pipe 42 is connected to the cleaning liquid tank. The pump can draw cleaning liquid from the cleaning liquid tank and pump it into the inner cavity of the cleaning soft cylinder 21 through the injection pipe 42. The cleaning liquid can flow out from the vent 213 of the cleaning surface 211 and spray it onto the surface of the lens 101. At this time, by controlling the power on and off of the adsorption magnetic plate 31, the cleaning soft cylinder 21 is driven to swing back and forth, so that the cleaning liquid is evenly coated on the lens 101. Finally, the lens 101 is wiped clean with a wiping cloth, thereby realizing the removal of the oil film on the lens 101.

[0073] It is worth noting that a drain pipe 125 is fixedly connected to the sealing plate 123. A damping joint is installed inside the drain pipe 125. The drain pipe 125 is connected to the inner cavity of the cleaning soft cylinder 21. After the cleaning operation is completed, the liquid in the cleaning soft cylinder 21 can be pumped to the drain pipe 125 by an air pump or an infusion pump and discharged from the drain pipe 125, thereby ensuring that there is no residual cleaning liquid in the inner cavity of the cleaning soft cylinder 21.

[0074] A sponge body 126 is fixed inside the shaping tube 122 at the end away from the winding roller. The sponge body 126 is made of sponge material, and the liquid injection tube 42 passes through the sponge body 126. The sponge body 126 can absorb the moisture mixed in the gas when the gas pumped by the air pump flows through it, thereby achieving the effect of drying and cleaning the soft tube 21.

[0075] See Figure 13 Furthermore, to improve the infusion effect of the infusion pump, the cleaning assembly 40 also includes an elastic ball 41 and a one-way valve body 43. In this embodiment, the elastic rope 214 is an elastic rubber tube, which includes a first tube body 2141 and a second tube body 2142; a liquid storage chamber is formed inside the elastic ball 41, and the first tube body 2141 and the second tube body 2142 pass through the liquid storage chamber of the elastic ball 41 and are interconnected. One end of the first tube 2141 is fixed to the sealing plate 123, and the other end is fixed to the elastic ball 41; one end of the second tube 2142 is fixed to the elastic ball 41, and the other end is magnetically connected to the support plate 112; the second tube 2142 is provided with multiple liquid permeation holes 218; an electromagnetic force block 215 is provided at the end of the first tube 2141 near the elastic ball 41, and an adsorption iron block 216 is provided at the end of the second tube 2142 near the elastic ball 41. When the electromagnetic force block 215 is energized, the adsorption iron block 216 can be brought close to the electromagnetic force block 215 by magnetic force, thereby squeezing the elastic ball 41. The elastic ball 41 is squeezed and pumps the cleaning fluid inside itself into the second tube 2142 and then outputs it from the liquid permeation hole 218; after the elastic ball 41 is reset, it draws the cleaning fluid in the cleaning fluid tank into the elastic ball 41. It is understandable that one end of the injection tube 42 is located in the cleaning fluid tank, and the other end of the injection tube 42 is connected to the internal space of the elastic rope 214. It is worth noting that there are two one-way valve bodies 43, which are respectively located at the connection position between the elastic ball 41 and the first tube body 2141 and the second tube body 2142, so as to prevent the cleaning fluid from flowing back and affecting the cleaning effect.

[0076] In addition, the magnetic beads 217 are sleeved on the elastic rope 214. A permanent magnet is fixed near the center hole of the magnetic beads 217. Adjacent magnetic beads 217 repel each other due to magnetic force. When the magnetic plate 31 is energized, the magnetic beads 217 can slide on the elastic rope 214 and rub against the elastic rope 214, thereby removing scale and other debris from the elastic rope 214 and the outer surface of the liquid permeation hole 218, thus clearing the liquid permeation hole 218 and ensuring that the liquid permeation hole 218 can supply liquid smoothly.

[0077] Example 3

[0078] This embodiment provides a radar lens cleaning method, employing the radar lens cleaning device of any of the above embodiments, specifically including:

[0079] Step 1: Drive the drive mechanism to move the cleaning soft cylinder 21 close to the lens 101, so that the cleaning surface 211 comes into contact with the lens 101;

[0080] In this step, gas is first pumped into the inflation chamber formed between the elastic band 202 and the fixed band 201 using an air pump. The elastic band 202 expands and deforms, making the cleaning soft tube 21 cylindrical and the cleaning surface 211 abutting against the lens 101. Gas is then pumped into the inflation chamber by the air pump. The gas sweeps and blows the lens 101 through the vent 213 of the cleaning surface 211, thereby removing dust and other floating objects from the surface of the lens 101.

[0081] It is worth noting that when it is necessary to clean the oil film on lens 101, step 12 is also included:

[0082] The liquid in the cleaning fluid tank is pumped into the infusion tube by the infusion pump. Then, the electromagnetic force block 215 is energized, so that the adsorption iron block 216 is attracted by the magnetic force and approaches the electromagnetic force block 215, thereby squeezing the elastic ball 41. The elastic ball 41 is squeezed and pumps the cleaning fluid inside it into the second tube 2142 and then outputs it from the liquid permeation hole 218. Then, the cleaning fluid is sprayed onto the surface of the lens 101 through the vent hole 213, thereby completing the cleaning process of the oil film on the lens 101.

[0083] Step 2: Drive the displacement component to drive the cleaning soft cylinder 21 to reciprocate along a direction perpendicular to the first straight line, so that the cleaning surface 211 rubs against the lens 101, thereby cleaning the lens 101.

[0084] In this step, the two magnetic adsorption plates 31 are intermittently energized and de-energized, so that the two magnetic adsorption plates 31 repeatedly adsorb the magnetic beads 217 on the elastic rope 214. This causes the magnetic beads 217 to drive the elastic rope 214 and simultaneously drive the cleaning soft cylinder 21 to reciprocate along the width direction of the lens 101. First, the adsorption layer 212 on the cleaning surface 211 sticks the impurities on the lens 101, and then the lens 101 is repeatedly wiped by the wiping cloth, thereby completing the cleaning process of the lens 101.

[0085] Preferably, after step 2, step 3 may be included: after the cleaning process is completed, the cleaning soft tube 21 is moved closer to the winding drum 12 by rotating the winding drum 12. During the movement of the cleaning soft tube 21, the cutting blades 13 on both sides of the shaping tube 122 cut the cleaning soft tube 21, causing the gas in the inflation chamber to leak out, thereby changing the cleaning soft tube 21 from a cylindrical shape to a sheet shape. Then, the winding drum 12 is rotated to wind the sheet-shaped cleaning soft tube 21 into the winding chamber 121 of the winding drum 12, thereby completing the winding process of the cleaning soft tube 21.

[0086] Preferably, after step 3, step 4 may be included: after the cleaning soft tube 21 is gathered, one of the adsorption magnetic plates 31 is energized to adsorb the magnetic ball, thereby adsorbing the elastic rope 214 onto the adsorption magnetic plate 31, so as to prevent the elastic rope 214 from being placed above the lens 101 and interfering with the normal detection operation of the radar.

[0087] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radar mirror cleaning device, a mirror (101) is arranged on the scanning head (100) of the radar, characterized in that, The radar lens cleaning device comprises: a support assembly (10) arranged on the scanning head (100) and distributed on both sides of the lens (101) along a first linear direction; wherein the length direction of the lens (101) is the first linear direction; a cleaning assembly (20) comprising a cleaning soft tube (21) and a driving mechanism, the cleaning soft tube (21) is detachably connected with the support assembly (10), a cleaning surface (211) is formed on the cleaning soft tube (21), the cleaning surface (211) faces the lens (101), and the driving mechanism can control the cleaning surface (211) to move along the radial direction of the cleaning soft tube (21), so that the cleaning surface (211) can contact or move away from the lens (101); the driving mechanism comprises an air pump and an air pipe (22), the air pipe (22) communicates with the inner cavity of the cleaning soft tube (21), and the air pump can inflate the cleaning soft tube (21) through the air pipe (22) to make the cleaning soft tube (21) expand, so that the cleaning surface (211) contacts the lens (101); a displacement assembly arranged on the scanning head (100), the displacement assembly can drive the cleaning surface (211) to reciprocate along a direction perpendicular to the first linear direction and rub against the lens (101).

2. The radar lens cleaning device of claim 1, wherein, the cleaning soft tube (21) comprises a fixed belt (201) and an elastic belt (202), an air inflation cavity is formed between the elastic belt (202) and the fixed belt (201), the air pump communicates with the air inflation cavity, when the air inflation cavity is not inflated, the cleaning soft tube (21) is in a sheet shape; when the air inflation cavity is inflated with gas, the elastic belt (202) expands and deforms, and the cleaning soft tube (21) is in a cylindrical shape.

3. The radar lens cleaning device of claim 2, wherein, the support assembly (10) comprises a release reel (11) and a collection reel (12), the release reel (11) and the collection reel (12) are arranged on both sides of the lens (101) respectively, one end of the cleaning soft tube (21) is connected with the release reel (11), the other end of the cleaning soft tube (21) is connected with the collection reel (12), and the cleaning soft tube (21) in a sheet shape can be wound on the release reel (11) or the collection reel (12).

4. The radar lens cleaning device of claim 3, wherein, the collection reel (12) is provided with a cutting blade (13), the cutting blade (13) can cut the cleaning soft tube (21) to make the gas in the air inflation cavity flow out, so that the cleaning soft tube (21) changes from a cylindrical shape to a sheet shape.

5. The radar lens cleaning device of any one of claims 1-4, wherein, a magnetic attraction bead (217) is arranged in the cleaning soft tube (21), the displacement assembly comprises two adsorption magnetic plates (31), the two adsorption magnetic plates (31) are distributed on both sides of the lens (101), and the two adsorption magnetic plates (31) are selectively electrified, when one of the adsorption magnetic plates (31) is electrified, the magnetic attraction bead (217) can be attracted to drive the cleaning soft tube (21) to move close to the electrified adsorption magnetic plate (31).

6. The radar lens cleaning device of claim 5, wherein, The cleaning soft tube (21) is internally provided with elastic ropes (214), the elastic ropes (214) are arranged in the inner cavity of the cleaning soft tube (21) and are connected with the support assembly (10), and a plurality of magnetic attraction beads (217) are arranged on the elastic ropes (214) at intervals.

7. The radar lens cleaning device of any one of claims 1-4, wherein, The cleaning surface (211) is provided with an adsorption layer (212), the adsorption layer (212) has viscosity and can stick impurities on the lens (101).

8. The radar lens cleaning device of any one of claims 1-4, wherein, The cleaning surface (211) is provided with a plurality of air holes (213), and the air holes (213) are communicated with the inner cavity of the cleaning soft tube (21).

9. A method of cleaning a radar lens, characterized by, The radar lens cleaning device comprises the radar lens cleaning device according to any one of claims 1-4, and further comprises: Step 1: driving the driving mechanism to drive the cleaning soft tube (21) to move close to the lens (101), so that the cleaning surface (211) is in abutment with the lens (101); Step 2: driving the displacement assembly to drive the cleaning soft tube (21) to reciprocate in a direction perpendicular to the first straight line, so that the cleaning surface (211) is in friction with the lens (101), thereby cleaning the lens (101).

Images