A dual-action lidar cleaning assembly

Abstract

The utility model provides a kind of dual-action laser radar cleaning assembly, it is realized the dynamic sealing protection of cleaning port by rotary cover plate mechanism;Sweeping and swinging execution mechanism is moved along the first direction on base platform by sweeping and swinging control component, by integrating cleaning execution mechanism on movable platform, so that cleaning execution mechanism can be synchronized with movable platform in the sweeping and swinging movement in the first direction;Cleaning execution mechanism includes nozzle component and wiper component, wiper component can be driven under the common driving of sweeping and swinging execution mechanism and cleaning control component, nozzle component can be driven under the common driving of sweeping and swinging execution mechanism and water pressure, according to the demand to reach the area to be cleaned, when the specified area of transceiver module is perceived to need cleaning, by the collaborative work of nozzle component and wiper component, increase cleaning capacity, and, by the cooperation of sweeping and swinging execution mechanism and wiper component, so that wiper component can continuously reciprocate in the specified area of transceiver module.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a dual-action lidar cleaning assembly. Background Technology

[0002] LiDAR is an important component of modern intelligent driving vehicles. LiDAR cleaning systems are used to clean the transceiver modules of LiDAR to maintain their ability to transmit and receive signals.

[0003] Existing LiDAR cleaning mechanisms are generally single-function cleaning fluid sprayers. These mechanisms typically have multiple nozzles and a large cleaning area to cover a wide area of ​​the transceiver module. However, with a fixed spray pressure, using multiple nozzles to spray cleaning fluid over a large area can lead to insufficient spray pressure. When there are stubborn stains such as dry, sticky dust, bird droppings, or insect carcasses on the transceiver module, the low spray pressure, even with a large amount of cleaning fluid, cannot remove these stubborn stains, resulting in insufficient cleaning capacity and affecting the accuracy of the LiDAR. Furthermore, with the development of intelligent driving technology, the space inside the vehicle is occupied by intelligent control components, making it impossible to support large-capacity cleaning fluid storage. Therefore, cleaning mechanisms are required to have lower cleaning fluid consumption and higher cleaning efficiency. In addition, in adverse weather conditions such as rain, snow, and fog, existing cleaning mechanisms cannot continuously clean the transceiver module. For example, they cannot continuously remove water accumulated on the transceiver module during heavy rain, which also affects the accuracy of the LiDAR. Utility Model Content

[0004] The problem this invention aims to solve is to provide a dual-action lidar cleaning assembly that has stronger cleaning capabilities, lower detergent consumption, higher detergent cleaning efficiency, and continuous cleaning function.

[0005] The technical solution adopted by this utility model to solve the above problems is: a dual-action lidar cleaning assembly, including a sweeping actuator, a cleaning actuator disposed on the sweeping actuator, a housing, and a cover plate mechanism disposed on the housing; The housing has a cleaning port; the cover mechanism includes a third actuator fixedly disposed on the housing, a third gear set extending from the third actuator, and a cover rotatably disposed on the cleaning port by being driven by the third gear set. The sweeping actuator includes a base platform, a mobile platform mounted on the base platform, and a sweeping control component; the mobile platform is driven by the sweeping control component to move along a first direction; the cleaning mechanism includes a nozzle assembly, a wiper assembly, and a cleaning control component mounted on the mobile platform; the wiper assembly is driven by the cleaning control component to move along a second direction to extend or retract from the cleaning port; the nozzle assembly includes an outer tube structure, a telescopic tube structure telescopically mounted on the outer tube structure, and a nozzle at the front end of the telescopic tube structure; when the outer tube structure receives liquid supply, water pressure drives the telescopic tube structure and the nozzle to move along the second direction to extend or retract from the cleaning port; After at least one of the nozzle assembly and the wiper assembly reaches the area to be cleaned, at least one of the areas to be cleaned is cleaned.

[0006] Compared with existing technologies, this utility model achieves dynamic sealing protection of the cleaning port through a rotating cover mechanism. Specifically, when the cleaning assembly is not in operation, the third actuator drives the third gear set to rotate and close the cover. The first and second sealing strips form an interference fit with the sealing groove and the extrusion wall, respectively, effectively preventing rainwater, dust, and other contaminants from entering the housing. In operation, the cover rotates open to create a sufficiently large channel space, ensuring that the nozzle assembly and wiper assembly can fully extend. The sweeping actuator uses a sweeping control component to enable the moving platform to move along the first direction on the base platform. By integrating the cleaning actuator onto the movable platform, the cleaning actuator can sweep synchronously with the moving platform in the first direction, allowing it to perform targeted cleaning of stubborn stains and clean designated areas in the first direction. Compared to large-scale, aimless spraying, this method offers stronger cleaning power, lower detergent consumption, and higher detergent cleaning efficiency, thereby reducing the storage capacity of detergent in the car and freeing up space for other intelligent features. The cleaning actuator includes a nozzle assembly and a wiper assembly. The wiper assembly, driven by the sweeping actuator and the cleaning control assembly, and the nozzle assembly, driven by the sweeping actuator and water pressure, reach the area to be cleaned as needed. When a designated area of ​​the transceiver module needs cleaning, the nozzle assembly and wiper assembly work together to further increase cleaning capacity, reduce detergent consumption, and improve detergent cleaning efficiency. Furthermore, through the cooperation of the sweeping actuator and the wiper assembly, the wiper assembly can continuously reciprocate within the designated area of ​​the transceiver module, thereby achieving continuous cleaning function to address the impact of continuous water accumulation in the transceiver module during heavy rain.

[0007] According to one embodiment of the present invention, the base platform includes a rack disposed on one of its edges; the base platform has at least one first groove; The mobile platform includes a platform body and at least one slider disposed below the platform body and cooperating with the first slide groove; The sweeping control component includes a first actuator disposed on the platform body and a first gear set disposed on the first actuator and cooperating with the rack; when the first gear set rotates, the slider slides in the first groove to drive the mobile platform to move along the first direction.

[0008] According to one embodiment of the present invention, the cleaning control assembly includes a second actuator disposed on the mobile platform, a second gear set extending from the second actuator, and a drive shaft extending from the second gear set; the nozzle assembly is driven by the drive shaft to move along a second direction for a stroke L1; the wiper assembly is driven by the drive shaft to move along a second direction for a stroke L2.

[0009] According to one embodiment of the present invention, the wiper assembly includes a wiper drive structure and a wiper action control structure disposed on the mobile platform, and a wiper disposed on the wiper drive structure. The drive shaft is configured to be connected to the wiper drive structure so that the wiper drive structure drives the wiper to move in the second direction; During the movement of the windshield wiper in the second direction, the windshield wiper action control structure controls the windshield wiper to retract or extend.

[0010] According to one embodiment of the present invention, the wiper drive structure includes a first support portion, a second support portion, a third support portion, and a fourth support portion arranged sequentially along a second direction, a first drive wheel rotatably disposed on the second support portion, a second drive wheel rotatably disposed on the third support portion, a drive belt disposed between the first drive wheel and the second drive wheel, and a drive bar slidably disposed on the first support portion and the fourth support portion. The windshield wiper is mounted on the drive bar; the first drive wheel is connected to the drive shaft; the second drive wheel cooperates with the drive bar to enable the drive bar to drive the windshield wiper to move in a second direction.

[0011] According to one embodiment of the present invention, the wiper action control structure includes a side control plate and a control arm; the side control plate has a track groove, and the control arm includes a sliding shaft disposed at one end and a drive shaft disposed at the other end, the sliding shaft being disposed in the track groove; the track groove includes a translation section and a rotation section.

[0012] According to one embodiment of the present invention, the windshield wiper includes a rotation control section, a stabilizing section, and a wiper blade section arranged sequentially, and an elastic member disposed on the stabilizing section; the rotation control section is rotatably disposed on the transmission bar, and the stabilizing section is connected to the transmission bar via the elastic member; the rotating section passes through the transmission bar and is connected to the rotation control section; When the sliding shaft is within the translation section, the wiper is in a retracted state, and the elastic element applies a force pointing in the second direction to the stabilizing part; When the sliding shaft is within the rotating section, the wiper is in the extended state, and the elastic element applies a pulling force to the stabilizing part so that the wiper blade is pointed towards the area to be cleaned and generates pre-pressure on the area to be cleaned.

[0013] According to one embodiment of the present invention, the outer tube structure has a receiving cavity; the outer tube structure includes a central column extending forward from the rear end of the receiving cavity; the front end of the central column has at least one communicating space through which washing liquid can pass; The telescopic tube structure includes a telescopic tube and a double-sided self-locking piston disposed at the rear end of the telescopic tube; the telescopic tube has a transition flow channel inside; the front end of the central column passes through the double-sided self-locking piston and enters the transition flow channel; The receiving cavity is separated into a rear liquid storage chamber by the double-sided self-locking pistons; when the rear liquid storage chamber receives liquid supply, the water pressure pushes the telescopic tube structure and the nozzle from the rear position to the front position through the double-sided self-locking pistons, and causes the nozzle to be pushed out; when the double-sided self-locking pistons are pushed to the front position by the water pressure, the rear liquid storage chamber is connected to the transition channel through the connecting space, and the nozzle sprays out washing liquid.

[0014] According to one embodiment of the present invention, the telescopic tube structure includes a baffle plate disposed at the rear end of the telescopic tube and a slot disposed at the rear end of the baffle plate; the double-sided self-locking piston includes a locking block disposed at one end; the locking block is configured to cooperate with the slot.

[0015] According to one embodiment of the present invention, the cover plate includes a first sealing strip disposed on the front edge and a second sealing strip disposed on the side edge and the rear edge; the cleaning port includes a sealing groove disposed on the front side and extrusion walls disposed on the sides and the rear side; the first sealing strip is configured to cooperate with the sealing groove; the second sealing strip is configured to cooperate with the extrusion wall; When the third actuator drives the cover plate to open via the third gear set, the first sealing strip disengages from the sealing groove, and the second sealing strip disengages from the extrusion wall. When the third actuator drives the cover plate to close via the third gear set, the first sealing strip abuts against the sealing groove, and the second sealing strip abuts against the extrusion wall. Attached Figure Description

[0016] Figure 1 This is a perspective view of a laser radar cleaning assembly according to a preferred embodiment of the present invention. Figure 2 This is a perspective view of the lidar cleaning assembly according to a preferred embodiment of the present invention from another side. Figure 3 An exploded view of a laser radar cleaning assembly according to a preferred embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of a lidar cleaning assembly according to a preferred embodiment of the present invention; Figure 5 This is a top view schematic diagram of the sweeping actuator and the cleaning actuator according to a preferred embodiment of the present invention; Figure 6 An exploded view of the sweeping actuator and the cleaning actuator according to a preferred embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of a cleaning control component according to a preferred embodiment of the present invention; Figure 8 This is a cross-sectional schematic diagram of a wiper assembly according to a preferred embodiment of the present invention; Figure 9 This is a perspective view of a wiper assembly according to a preferred embodiment of the present invention from one side. Figure 10 This is an exploded view of a wiper assembly according to a preferred embodiment of the present invention. Figure 11 This is a cross-sectional schematic diagram of a nozzle assembly according to a preferred embodiment of the present invention; Figure 12 This is a three-dimensional schematic diagram of the initial state of the cleaning actuator according to a preferred embodiment of the present invention; Figure 13 This is a perspective view of one of the unfolded states of the cleaning actuator according to a preferred embodiment of the present invention; Figure 14 This is a perspective view of one of the unfolded states of the cleaning actuator according to a preferred embodiment of the present invention; Figure 15 This is a perspective view of one of the unfolded states of the cleaning actuator according to a preferred embodiment of the present invention; Figure 16 This is a perspective view of one of the unfolded states of the cleaning actuator according to a preferred embodiment of the present invention; Figure 17 This is a perspective view of one of the unfolded states of the cleaning actuator according to a preferred embodiment of the present invention; Figure 18 This is a three-dimensional schematic diagram of the fully deployed cleaning actuator according to a preferred embodiment of the present invention. Figure 19 This is a schematic diagram of the wiper in the fully extended state of the cleaning actuator according to a preferred embodiment of the present invention. In the picture, Sweeping actuator 1; base platform 11, moving platform 12, sweeping control component 13; rack 111, first slide 112; platform body 121, slider 122; first actuator 131, first gear set 132; Cleaning actuator 2; Nozzle assembly 21, wiper assembly 22, cleaning control assembly 23; Outer sleeve structure 211, telescopic tube structure 212, nozzle 213; Wiper drive structure 221, wiper action control structure 222, wiper 223; Second actuator 231, second gear set 232, drive shaft 233; Receiving cavity 2111, center column 2112; Telescopic tube 2121, double-sided self-locking piston 2122; Rear reservoir 21111; Connecting space 21121; Transition channel 21211, baffle 21212, slot 2 1213; Block 21221; First support part 2211, second support part 2212, third support part 2213, fourth support part 2214, first transmission wheel 2215, second transmission wheel 2216, transmission belt 2217, transmission bar 2218; Side control plate 2221, control arm 2222; Rotation control part 2231, stabilizing part 2232, scraper part 2233, elastic element 2234; Track groove 22211; Sliding shaft 22221, drive shaft 22222; Translation section 222111, rotation section 222112; Cover plate mechanism 3; third actuator 31, third gear set 32, cover plate 33; first sealing strip 331; second sealing strip 332; Cover 4; cleaning port 41; sealing groove 411 and extrusion wall 412. Detailed Implementation

[0017] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0018] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0019] Those skilled in the art should understand that the embodiments of the present invention described below and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principles of the present invention are shown and described in the following embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0020] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0021] Please see Figure 1-15A dual-action lidar cleaning assembly is shown, comprising a sweeping actuator 1, a cleaning actuator 2 disposed on the sweeping actuator 1, a housing 4, and a cover plate mechanism 3 disposed on the housing 4; the housing 4 has a cleaning port 41; the cover plate mechanism 3 includes a third actuator 31 fixedly disposed on the housing 4, a third gear set 32 ​​extending from the third actuator 31, and a cover plate 33 rotatably disposed on the cleaning port 41 driven by the third gear set 32; the sweeping actuator 1 includes a base platform 11, a moving platform 12 disposed on the base platform 11, and a sweeping control component 13; the moving platform 12 is driven by the sweeping control component 13 to move along a first direction; the cleaning actuator 2 includes a cleaning actuator 2 disposed on the housing 4, a housing 4, and a cover plate mechanism 3; the housing 4 has a cleaning port 41; the cover plate mechanism 3 includes a third actuator 31 fixedly disposed on the housing 4, a third gear set 32 ​​extending from the third actuator 31, and a cover plate 33 rotatably disposed on the cleaning port 41 driven by the third gear set 32; the sweeping actuator 1 includes a base platform 11, a moving platform 12 disposed on the base platform 11, and a sweeping control component 13; the moving platform 12 is driven by the sweeping control component 13 to move along a first direction; the cleaning actuator 2 includes a cleaning actuator 2 disposed on the housing 4, a cleaning actuator 2 disposed on the housing 4, and a cover plate mechanism 3; the housing 4 has a cleaning port 41; the cleaning actuator 2 includes a cleaning actuator 31 fixedly disposed on the housing 4, a third gear set 32 ​​extending from the third actuator 31, and a cover plate 33 rotatably disposed on the cleaning port 41; the sweeping actuator 1 includes a base platform 11, a moving platform 12 disposed on the base platform 11, and a sweeping control component 1 The mobile platform 12 includes a nozzle assembly 21, a wiper assembly 22, and a cleaning control assembly 23. The wiper assembly 22 is driven by the cleaning control assembly 23 to move along a second direction, thereby extending or retracting from the cleaning port 41. The nozzle assembly 21 includes an outer tube structure 211, a telescopic tube structure 212 telescopically disposed on the outer tube structure 211, and a nozzle 213 disposed at the front end of the telescopic tube structure 212. When the outer tube structure 211 receives liquid supply, water pressure drives the telescopic tube structure 212 and the nozzle 213 to move along the second direction, thereby extending or retracting from the cleaning port 41. After at least one of the nozzle assembly 21 and the wiper assembly 22 reaches the area to be cleaned, it cleans at least one of the areas to be cleaned.

[0022] In practical use, this utility model achieves dynamic sealing protection of the cleaning port 41 through the rotary cover mechanism 3. Specifically, when the cleaning assembly is in a non-working state, the third actuator 31 drives the third gear set 32 ​​to rotate and close the cover 33. The first sealing strip 331 and the second sealing strip 332 form an interference fit with the sealing groove 411 and the extrusion wall 412 respectively, effectively preventing rainwater, dust and other pollutants from entering the interior of the cover 4. In operation, the cover 33 rotates open to create a sufficiently large channel space, ensuring that the nozzle assembly 21 and wiper assembly 22 can be fully extended. The sweeping actuator 1, through the sweeping control assembly 13, enables the moving platform 12 to move along the first direction on the base platform 11. By integrating the cleaning actuator 2 onto the movable platform 12, the cleaning actuator 2 can move synchronously with the moving platform 12 in the first direction, allowing the cleaning actuator 2 to perform targeted cleaning of stubborn stains and clean designated areas in the first direction. Compared to large-scale, aimless spraying, this method offers stronger cleaning power, lower detergent consumption, and higher detergent cleaning efficiency. Consequently, the storage capacity of detergent in the car can be reduced, freeing up space for other intelligent driving systems. The cleaning actuator 2 includes a nozzle assembly 21 and a wiper assembly 22. The wiper assembly 22 can reach the area to be cleaned as needed, driven by the sweeping actuator 1 and the cleaning control assembly 23, and the nozzle assembly 21 can reach the area to be cleaned as needed, driven by the sweeping actuator 1 and water pressure. When the designated area of ​​the transceiver module needs to be cleaned, the cleaning capacity is further increased, the washing liquid consumption is reduced, and the washing liquid cleaning efficiency is improved through the coordinated work of the nozzle assembly 21 and the wiper assembly 22. Furthermore, through the cooperation of the sweeping actuator 1 and the wiper assembly 22, the wiper assembly 22 can continuously reciprocate in the designated area of ​​the transceiver module, thereby realizing the continuous cleaning function to solve the impact of continuous water accumulation in the transceiver module during heavy rain.

[0023] Understandably, the nozzle assembly 21 and wiper assembly 22 can perform at least one of the following cleaning methods: individual spray cleaning by the nozzle assembly 21, combined cleaning by the nozzle assembly 21 and wiper assembly 22, and individual wiping cleaning by the wiper assembly 22 in rainy or snowy weather. Furthermore, regarding the second-direction drive, the wiper assembly 22 is driven by the cleaning control assembly 23, while the nozzle assembly 21 is driven by water pressure; the two are independent of each other to support individual cleaning by either the nozzle assembly 21 or the wiper assembly 22 and to reduce interference between them.

[0024] It is worth mentioning that, depending on the requirements, the transceiver surface of the transceiver module may be designed with different curvatures. Therefore, the first direction is set to match the curvature of the transceiver surface so that the pressure of the washing liquid sprayed by the nozzle assembly 21 reaching the transceiver surface is uniform, and the wiper assembly 22 can adhere to the transceiver surface with uniform force.

[0025] Please continue reading. Figure 1 , Figure 2 The base platform 11 includes a rack 111 disposed on one of its edges; the base platform 11 has at least one first groove 112; the moving platform 12 includes a platform body 121 and at least one slider 122 disposed below the platform body 121 and cooperating with the first groove 112; the sweeping control assembly 13 includes a first actuator 131 disposed on the platform body 121 and a first gear set 132 disposed on the first actuator 131 and cooperating with the rack 111; when the first gear set 132 rotates, the slider 122 slides in the first groove 112 to drive the moving platform 12 to move along a first direction.

[0026] In some embodiments, the rack 111 may be a spur rack or a helical rack, and the tooth profile parameters are selected according to the transmission accuracy requirements, specifically the module. The cross-sectional shape of the first slide groove 112 may be rectangular, dovetail-shaped, or T-shaped, and its surface may be hardened to improve wear resistance. Ball bearings or rollers may be provided inside the slider 122 to reduce the coefficient of friction. The first gear set 132 includes at least one gear that meshes with the rack 111, and the gear module matches that of the rack 111.

[0027] In use, this invention converts rotary motion into linear motion through a gear and rack transmission 111, where the rack 111 and the gear set form a high-precision transmission pair. The sliding pair formed by the first slide groove 112 and the slider 122 restricts the other degrees of freedom of the moving platform 12. When the first actuator 131 drives the first gear set 132 to rotate, the transmission ratio design allows the moving platform 12 to obtain a suitable speed while maintaining sufficient driving force. This structure solves the technical problem of requiring stable and precise linear motion of the moving platform 12, and has the advantages of simple structure and convenient maintenance.

[0028] Please continue reading. Figure 1-3 The cleaning control component 23 includes a second actuator 231 disposed on the mobile platform 12, a second gear set 232 extending from the second actuator 231, and a drive shaft 233 extending from the second gear set 232; the nozzle assembly 21 is driven by the drive shaft 233 to move along the second direction for a stroke L1; the wiper assembly 22 is driven by the drive shaft 233 to move along the second direction for a stroke L2.

[0029] In use, this invention drives the movement of two components through a single power source. The rotational torque output by the second actuator 231 is transmitted synchronously to the nozzle assembly 21 and the wiper assembly 22 via the transmission shaft 233 after being changed by the second gear set 232. The nozzle assembly 21 stops moving after completing the L1 stroke, while the wiper assembly 22 continues to complete the L2 stroke. This forms a phased cleaning process in which the nozzle first extends to spray detergent to lubricate the designated area, softens the stains, and then the wiper unfolds to wipe them away. With this setting, while maintaining a compact structure, timing control is achieved through differentiated settings of mechanical transmission parameters. This avoids interference between the two components and ensures that the detergent can lubricate and fully soak the stains before wiping. It can achieve better cleaning results with less detergent, significantly improving the removal efficiency of stubborn stains. It also avoids wear on the wiper assembly 22 caused by dry stains and wear on the receiving and transmitting surfaces of the receiving and transmitting module caused by dry wiping by the wiper assembly 22.

[0030] Please continue reading. Figure 1-3 The starting point of the L1 stroke is set before the L2 stroke; when the nozzle assembly 21 moves from the starting point of the L1 stroke to the ending point of the L1 stroke, the nozzle assembly 21 extends to the working position before the wiper assembly 22.

[0031] Specifically, the starting position relationship between the L1 and L2 strokes can be set by the front-to-back arrangement of the nozzle assembly 21 and the wiper assembly 22 on the moving platform 12. In use, the two components cooperate by controlling the stroke: when only washer fluid needs to be sprayed, the second actuator 231 controls the nozzle assembly 21 and the wiper assembly 22 to advance simultaneously by the L1 stroke. Since the starting point of the L1 stroke is set before the L2 stroke, the nozzle assembly 21 extends out from the cover plate mechanism 3 and can spray washer fluid independently, while the wiper assembly 22 is still hidden in the cover plate mechanism 3. When it is necessary to spray washer fluid and / or wipe away dirt, the second actuator 231 controls the nozzle assembly 21 and the wiper assembly 22 to continue advancing from the L1 stroke to the L2 stroke. During this process, the nozzle assembly 21 remains stationary because it has reached its maximum stroke, while the wiper assembly 22 continues to advance to the working position, thereby realizing the coordinated work of the nozzle assembly 21 and the wiper assembly 22 or the independent work of the wiper assembly 22.

[0032] Please continue reading. Figure 4-6 as well as Figure 8-15The wiper assembly 22 includes a wiper drive structure 221 and a wiper action control structure 222 disposed on the moving platform 12, and a wiper 223 disposed on the wiper drive structure 221; the drive shaft 233 is configured to be connected to the wiper drive structure 221 so that the wiper drive structure 221 drives the wiper 223 to move in a second direction; during the movement of the wiper 223 in the second direction, the wiper action control structure 222 controls the wiper 223 to retract or extend.

[0033] In use, this invention achieves automatic switching of the working state of the windshield wiper 223 through a mechanical linkage mechanism. When the wiper 223 is inside the cover plate mechanism 3, the wiper action control structure 222 keeps it in the retracted state to avoid interference with internal components; when the wiper 223 moves outside the cover plate mechanism 3, the wiper action control structure 222 automatically switches it to the extended state to perform the cleaning task. This design allows for adjustment of the wiper 223's state, improving space utilization and cleaning efficiency. Furthermore, this solution has the advantages of simple structure and high reliability, achieving state switching through a purely mechanical structure without the need for additional control circuitry, thus reducing system complexity. Simultaneously, the retracted state effectively reduces the space occupied by the wiper 223 when not in operation, while the extended state ensures effective cleaning, achieving a balance between space utilization and functional requirements.

[0034] Please continue reading. Figure 4-6 as well as Figure 8-15 The wiper drive structure 221 includes a first support portion 2211, a second support portion 2212, a third support portion 2213, and a fourth support portion 2214 arranged sequentially along a second direction; a first drive wheel 2215 rotatably disposed on the second support portion 2212; a second drive wheel 2216 rotatably disposed on the third support portion 2213; a drive belt 2217 disposed between the first drive wheel 2215 and the second drive wheel 2216; and a drive bar 2218 slidably disposed on the first support portion 2211 and the fourth support portion 2214. The wiper 223 is disposed on the drive bar 2218. The first drive wheel 2215 is connected to the drive shaft 233. The second drive wheel 2216 cooperates with the drive bar 2218 to enable the drive bar 2218 to drive the wiper 223 to move along the second direction.

[0035] Specifically, the first support portion 2211 and the fourth support portion 2214 can adopt linear guide rails or groove structures to constrain the movement trajectory of the transmission bar 2218. The second support portion 2212 and the third support portion 2213 can adopt bearing seat structures to support the rotational movement of the first transmission wheel 2215 and the second transmission wheel 2216. The transmission belt 2217 can be a synchronous belt or a toothed belt to ensure the synchronous rotation accuracy between the transmission wheels. The transmission bar 2218 can be a metal rod with a rack 111, which meshes with the gear of the second transmission wheel 2216. As a preferred embodiment, guide protrusions can be provided on both sides of the transmission bar 2218 to cooperate with the guide grooves on each support portion, further restricting the degree of freedom of movement of the transmission bar 2218.

[0036] In use, this invention forms a stable motion guiding foundation through a four-support frame, and achieves synchronous and smooth power transmission through a combination of dual transmission wheels and belts. Specifically, the first transmission wheel 2215 receives external power input and drives the second transmission wheel 2216 to rotate via the transmission belt 2217. The second transmission wheel 2216 converts the rotational motion into linear motion of the transmission bar 2218. Under the constraint of the support components, the transmission bar 2218 achieves high-precision linear displacement along the second direction, thereby driving the wiper 223 to complete precise position control. The combination of multi-point support and belt transmission effectively reduces vibration and positional deviation during the movement of the transmission bar 2218. The sliding fit structure between the transmission bar 2218 and the support components compensates for assembly tolerances, ensuring motion stability during long-term use. The gear meshing design between the second transmission wheel 2216 and the transmission bar 2218 provides a precise power transmission ratio, ensuring a linear correspondence between the displacement of the wiper 223 and the input speed. The synergistic effect of these technical features enables the windshield wiper 223 to have higher positioning accuracy and reliability in its telescopic movement inside and outside the cover plate mechanism 3.

[0037] Please continue reading. Figure 4-6 as well as Figure 8-15 The wiper action control structure 222 includes a side control plate 2221 and a control arm 2222; the side control plate 2221 has a track groove 22211, and the control arm 2222 includes a sliding shaft 22221 disposed at one end and a drive shaft 22222 disposed at the other end, the sliding shaft 22221 being disposed in the track groove 22211; the track groove 22211 includes a translation section 222111 and a rotation section 222112.

[0038] Specifically, the trajectory groove 22211 of the side control plate 2221 can adopt a groove structure combining straight lines and arcs, wherein the translation section 222111 is a straight groove and the rotation section 222112 is an arc groove. The sliding shaft 22221 of the control arm 2222 can adopt a roller structure to reduce friction. The elastic element 2234 is preferably a helical spring. The connection between the rotation control unit 2231 and the transmission bar 2218 can adopt a bearing or bushing structure to ensure smooth rotation.

[0039] In use, this invention achieves automatic state switching of the wiper 223 inside and outside the cover plate 33 through the cooperation of the track groove 22211 and the control arm 2222. In the retracted state, the tension provided by the elastic element 2234 keeps the wiper 223 compact to prevent the wiper 223 from making abnormal noise when the vehicle is in motion; in the extended state, the tension of the elastic element 2234 ensures that the wiper blade is in close contact with the cleaning surface.

[0040] Please continue reading. Figure 4-6 as well as Figure 8-15 The windshield wiper 223 includes a rotation control unit 2231, a stabilizing unit 2232, a wiper blade 2233 arranged sequentially, and an elastic member 2234 disposed on the stabilizing unit 2232. The rotation control unit 2231 is rotatably disposed on the transmission bar 2218, and the stabilizing unit 2232 is connected to the transmission bar 2218 via the elastic member 2234. The rotating section 222112 passes through the transmission bar 2218 and is connected to the rotation control unit 2231. When the sliding shaft 22221 is within the translation section 222111, the windshield wiper 223 retracts, and the elastic member 2234 applies a force pointing in a second direction to the stabilizing unit 2232. When the sliding shaft 22221 is within the rotating section 222112, the windshield wiper 223 extends, and the elastic member 2234 applies a pulling force to the stabilizing unit 2232, so that the wiper blade 2233 points towards the area to be cleaned and generates pre-pressure on the area to be cleaned.

[0041] In some embodiments, the rotation control unit 2231 may employ a bearing or hinge structure to achieve a rotatable connection with the transmission bar 2218. The bearing is preferably a miniature deep groove ball bearing to reduce frictional resistance, thereby allowing the rotation control unit 2231 to stably pass through and connect with the transmission bar 2218. The elastic element 2234 between the stabilizing unit 2232 and the transmission bar 2218 is preferably a compression spring, the elastic coefficient of which is adjusted according to different operating conditions. A ramp structure may be provided in the transition area between the rotating section 222112 and the translational section 222111 to achieve a smooth transition of the sliding shaft 22221.

[0042] In use, this utility model achieves reliable control of the wiper 223 state through the combination of mechanical linkage and elastic force. In the retracted state, the compressive force of the elastic element 2234 keeps the wiper 223 in a compact shape, avoiding interference with the cover plate mechanism 3 and preventing abnormal noise. In the extended state, the cooperation between the rotating section 222112 and the sliding shaft 22221 drives the entire control arm 2222 to rotate. In turn, the cooperation between the drive shaft 22222 and the rotation control unit 2231 drives the entire wiper 223 to rotate towards the area to be cleaned. For the wiper 223, the drive shaft 22222 first provides force to the rotation control unit 2231, and the elastic element 2234 provides force to the stabilizing part 2232. Under the synergistic cooperation of the two forces acting at different positions, it is ensured that the wiper blade 2233 always contacts the surface to be cleaned at the best angle and with the most appropriate force, so as to ensure the cleaning ability of the wiper 223 under high-speed driving or inclement weather such as rain and snow. With the cleaning ability of the wiper 223 guaranteed, this utility model can achieve a better washing effect with less detergent and can realize continuous cleaning function.

[0043] Please continue reading. Figure 11 The outer tube structure 211 has a receiving cavity 2111; the outer tube structure 211 includes a central column 2112 extending forward from the rear end of the receiving cavity 2111; the front end of the central column 2112 has at least one communicating space 21121 through which washing liquid can pass; the telescopic tube structure 212 includes a telescopic tube 2121 and a double-sided self-locking piston 2122 disposed at the rear end of the telescopic tube 2121; the telescopic tube 2121 has a transition flow channel 21211 inside; the front end of the central column 2112 passes through the double-sided self-locking piston 2122 and enters The transition channel 21211; the receiving cavity 2111 is separated into a rear liquid storage cavity 21111 by the double-sided self-locking piston 2122; when the rear liquid storage cavity 21111 receives liquid supply, the water pressure pushes the telescopic tube structure 212 and the nozzle 213 from the rear position to the front position through the double-sided self-locking piston 2122, and causes the nozzle 213 to be pushed out; when the double-sided self-locking piston 2122 is pushed to the front position by the water pressure, the rear liquid storage cavity 21111 is connected to the transition channel 21211 through the connecting space 21121, and the nozzle 213 sprays out washing liquid.

[0044] In use, the outer sleeve structure 211 has a receiving cavity 2111 and a central column 2112, and the central column 2112 has a communicating space 21121. The telescopic tube structure 212 includes a telescopic tube 2121 and a double-sided self-locking piston 2122, and the double-sided self-locking piston 2122 separates the receiving cavity 2111 into a rear liquid storage cavity 21111. When the rear liquid storage cavity 21111 receives liquid, the hydraulic pressure will squeeze the double-sided self-locking piston 2122, so that the double-sided self-locking piston 2122 will generate a self-locking deformation towards the receiving cavity 2111 and the central column 2112 while being pushed from the rear position in the second direction, so as to ensure that when the hydraulic pressure in the rear liquid storage cavity 21111 is large, the double-sided self-locking piston 2122 can be stably pushed in the second direction. This prevents leakage along the edges of the central column 2112 and the outer sleeve structure 211, thus allowing the hydraulic pressure to act on the telescopic tube structure 212 as much as possible, ensuring that the telescopic tube structure 212 first pushes the nozzle 213 out. When the double-sided self-locking piston 2122 is pushed to the front position by the water pressure, its position corresponds to the connecting space 21121. At this time, the nozzle 213 has already extended to the area to be cleaned. The rear liquid storage chamber 21111 and the transition channel 21211 are then connected through the connecting space 21121, ultimately ensuring that the washing liquid is sprayed out from the nozzle 213 after it has extended to the area to be cleaned. This avoids water leakage inside the cleaning assembly caused by the washing liquid being sprayed out before the nozzle 213 has extended, and also improves the cleaning effect.

[0045] It is worth mentioning that the outer sleeve structure 211 is equipped with a reset component. When the hydraulic pressure in the rear liquid storage chamber 21111 is large, the hydraulic pressure forces the reset component to deform, thereby causing the telescopic tube structure 212 and the nozzle 213 to move in the second direction. When the hydraulic pressure in the rear liquid storage chamber 21111 is small, the reset component resets, thereby causing the telescopic tube structure 212 and the nozzle 213 to move in the opposite direction of the second direction, thus completing the reset.

[0046] Please continue reading. Figure 11 The telescopic tube structure 212 includes a baffle 21212 disposed at the rear end of the telescopic tube 2121 and a slot 21213 disposed at the rear end of the baffle 21212; the double-sided self-locking piston 2122 includes a locking block 21221 disposed at one end; the locking block 21221 is configured to cooperate with the slot 21213.

[0047] Specifically, the baffle 21212 at the rear end of the telescopic tube 2121 is fixed by the snap-fit ​​of the snap-fit ​​block 21221 and the snap-fit ​​groove 21213. This connection method not only maintains the stable connection between the two, but also ensures the structural strength of the double-sided self-locking piston 2122 itself, so as to increase the service life of the double-sided self-locking piston 2122 in repeated use.

[0048] Please see Figure 16-19The cover plate 33 includes a first sealing strip 331 disposed on the front edge and a second sealing strip 332 disposed on the side edge and rear edge; the cleaning port 41 includes a sealing groove 411 disposed on the front side and extrusion walls 412 disposed on the sides and rear side; the first sealing strip 331 is configured to cooperate with the sealing groove 411; the second sealing strip 332 is configured to cooperate with the extrusion wall 412; when the third actuator 31 drives the cover plate 33 to open via the third gear set 32, the rotation direction of the cover plate 33 is in line with the first sealing strip 331 disengaging from the sealing groove 411, and the second sealing strip 332 disengaging from the extrusion wall 412; when the third actuator 31 drives the cover plate 33 to close via the third gear set 32, the first sealing strip 331 abuts against the sealing groove 411, and the second sealing strip 332 abuts against the extrusion wall 412.

[0049] In some embodiments, the housing 4 may be made of die-cast aluminum alloy or injection-molded engineering plastic, and its interior has an mounting structure for fixing the sweeping actuator 1. The edge of the cleaning port 41 may be provided with an annular flange to enhance structural strength. The first sealing strip 331 and the second sealing strip 332 are preferably made of silicone rubber and are fixed to the edge of the cover plate 33 by snap-fit ​​or adhesive. The third actuator 31 may be a stepper motor or a servo motor, and the third gear set 32 ​​includes multiple meshing gears to achieve a suitable output speed. The rotating shaft of the cover plate 33 may be equipped with a waterproof bearing.

[0050] In use, this invention achieves dynamic sealing protection of the cleaning port 41 through the rotary cover mechanism 3. Specifically, when the cleaning assembly is not in operation, the third actuator 31 drives the third gear set 32 ​​to rotate and close the cover 33. The first sealing strip 331 and the second sealing strip 332 form an interference fit with the sealing groove 411 and the extrusion wall 412, respectively, effectively preventing rainwater, dust and other pollutants from entering the interior of the housing 4. In the working state, the cover 33 rotates open to form a sufficiently large channel space to ensure that the nozzle assembly 21 and the wiper assembly 22 can be fully extended.

[0051] It is worth mentioning that the third actuator 31 drives the cover plate 33 to move downward from the front edge, thereby opening the cleaning port 41. The front edge of the cover plate 33 is located at the lower position of the entire housing 4, meaning that rainwater will eventually flow to and collect at the front edge due to gravity. Therefore, a first sealing strip 331 is provided on the front edge of the cover plate 33, and a second sealing strip 332 is provided on the side edge and the rear edge. Through the first sealing strip 331 and the second sealing strip 332 on the side edge and the rear edge, combined with the pre-tightening force after the third actuator 31 is closed, the two sealing strips can be deformed and pressed against the entire cleaning port 41, thereby achieving a high waterproof level. When opening, the rotation opening direction of the cover plate 33 is the same as the disengagement direction of the first sealing strip 331 and the second sealing strip 332. Therefore, the first sealing strip 331 disengages from the sealing groove 411, and the second sealing strip 332 disengages from the compression wall 412.

[0052] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A dual-action lidar cleaning assembly, characterized in that: It includes a sweeping actuator (1), a cleaning actuator (2) disposed in the sweeping actuator (1), a housing (4), and a cover plate mechanism (3) disposed in the housing (4). The housing (4) has a cleaning port (41); the cover mechanism (3) includes a third actuator (31) fixedly disposed on the housing (4), a third gear set (32) extending from the third actuator (31), and a cover (33) rotatably disposed on the cleaning port (41) driven by the third gear set (32). The sweeping actuator (1) includes a base platform (11), a moving platform (12) disposed on the base platform (11), and a sweeping control component (13); the moving platform (12) is driven by the sweeping control component (13) to move along a first direction; the cleaning actuator (2) includes a nozzle assembly (21), a wiper assembly (22), and a cleaning control component (23) disposed on the moving platform (12); the wiper assembly (22) is driven by the cleaning control component (23) to move along a first direction. The nozzle assembly (21) includes a two-way movement to extend or retract from the cleaning port (41); the nozzle assembly (21) includes an outer tube structure (211), a telescopic tube structure (212) telescopically disposed in the outer tube structure (211), and a nozzle (213) disposed at the front end of the telescopic tube structure (212); when the outer tube structure (211) receives liquid supply, the water pressure drives the telescopic tube structure (212) and the nozzle (213) to move in the second direction to extend or retract from the cleaning port (41); After at least one of the nozzle assembly (21) and the wiper assembly (22) reaches the area to be cleaned, at least one of the areas to be cleaned is cleaned.

2. The dual-action lidar cleaning assembly according to claim 1, characterized in that: The base platform (11) includes a rack (111) disposed on one of its edges; the base platform (11) has at least one first groove (112). The mobile platform (12) includes a platform body (121) and at least one slider (122) disposed below the platform body (121) and cooperating with the first slide (112). The sweeping control component (13) includes a first actuator (131) disposed on the platform body (121) and a first gear set (132) disposed on the first actuator (131) and cooperating with the rack (111); when the first gear set (132) rotates, the slider (122) slides in the first groove (112) to drive the mobile platform (12) to move along the first direction.

3. The dual-action lidar cleaning assembly according to claim 1, characterized in that: The cleaning control assembly (23) includes a second actuator (231) disposed on the mobile platform (12), a second gear set (232) extending from the second actuator (231), and a drive shaft (233) extending from the second gear set (232); the nozzle assembly (21) is driven by the drive shaft (233) to move along a second direction for a stroke L1; the wiper assembly (22) is driven by the drive shaft (233) to move along a second direction for a stroke L2.

4. The dual-action lidar cleaning assembly according to claim 3, characterized in that: The wiper assembly (22) includes a wiper drive structure (221) and a wiper action control structure (222) disposed on the mobile platform (12), and a wiper (223) disposed on the wiper drive structure (221). The drive shaft (233) is configured to be connected to the wiper drive structure (221) so that the wiper drive structure (221) drives the wiper (223) to move in the second direction; During the movement of the wiper (223) in the second direction, the wiper action control structure (222) controls the wiper (223) to retract or extend.

5. The dual-action lidar cleaning assembly according to claim 4, characterized in that: The wiper drive structure (221) includes a first support part (2211), a second support part (2212), a third support part (2213), and a fourth support part (2214) arranged sequentially along a second direction, as well as a first drive wheel (2215) rotatably disposed on the second support part (2212), a second drive wheel (2216) rotatably disposed on the third support part (2213), a drive belt (2217) disposed between the first drive wheel (2215) and the second drive wheel (2216), and a drive bar (2218) slidably disposed on the first support part (2211) and the fourth support part (2214). The windshield wiper (223) is mounted on the drive bar (2218); the first drive wheel (2215) is connected to the drive shaft (233); the second drive wheel (2216) cooperates with the drive bar (2218) to enable the drive bar (2218) to drive the windshield wiper (223) to move in the second direction.

6. The dual-action lidar cleaning assembly according to claim 5, characterized in that: The wiper action control structure (222) includes a side control plate (2221) and a control arm (2222); the side control plate (2221) has a track groove (22211), and the control arm (2222) includes a sliding shaft (22221) disposed at one end and a drive shaft (22222) disposed at the other end, the sliding shaft (22221) being disposed in the track groove (22211); the track groove (22211) includes a translation section (222111) and a rotation section (222112).

7. The dual-action lidar cleaning assembly according to claim 6, characterized in that: The windshield wiper (223) includes a rotation control unit (2231), a stabilizing unit (2232), and a wiper blade unit (2233) arranged in sequence, and an elastic member (2234) disposed on the stabilizing unit (2232); the rotation control unit (2231) is rotatably disposed on the drive bar (2218), and the stabilizing unit (2232) is connected to the drive bar (2218) via the elastic member (2234); the rotating section (222112) passes through the drive bar (2218) and is connected to the rotation control unit (2231); When the sliding shaft (22221) is within the translation section (222111), the wiper (223) is in a retracted state, and the elastic member (2234) applies a force pointing in the second direction to the stabilizing part (2232); When the sliding shaft (22221) is in the rotating section (222112), the wiper (223) is in the unfolded state, and the elastic element (2234) applies a pulling force to the stabilizing part (2232) so that the wiper blade (2233) points to the area to be cleaned and generates pre-pressure on the area to be cleaned.

8. The dual-action lidar cleaning assembly according to claim 1, characterized in that: The outer tube structure (211) has a receiving cavity (2111); the outer tube structure (211) includes a central column (2112) extending forward from the rear end of the receiving cavity (2111); the front end of the central column (2112) has at least one communicating space (21121) through which washing liquid can pass. The telescopic tube structure (212) includes a telescopic tube (2121) and a double-sided self-locking piston (2122) disposed at the rear end of the telescopic tube (2121); the telescopic tube (2121) has a transition channel (21211) inside; the front end of the central column (2112) passes through the double-sided self-locking piston (2122) and enters the transition channel (21211). The receiving cavity (2111) is separated into a rear liquid storage cavity (21111) by the double-sided self-locking piston (2122); when the rear liquid storage cavity (21111) receives liquid, the water pressure pushes the telescopic tube structure (212) and the nozzle (213) from the rear position to move forward through the double-sided self-locking piston (2122), and causes the nozzle (213) to be pushed out; when the double-sided self-locking piston (2122) is pushed to the front position by the water pressure, the rear liquid storage cavity (21111) is connected to the transition channel (21211) through the connecting space (21121), and the nozzle (213) sprays out washing liquid.

9. The dual-action lidar cleaning assembly according to claim 8, characterized in that: The telescopic tube structure (212) includes a baffle (21212) disposed at the rear end of the telescopic tube (2121) and a slot (21213) disposed at the rear end of the baffle (21212); the double-sided self-locking piston (2122) includes a locking block (21221) disposed at one end; the locking block (21221) is configured to cooperate with the slot (21213).

10. The dual-action lidar cleaning assembly according to claim 1, characterized in that: The cover plate (33) includes a first sealing strip (331) disposed on the front edge and a second sealing strip (332) disposed on the side edge and the rear edge; the cleaning port (41) includes a sealing groove (411) disposed on the front side and extrusion walls (412) disposed on the sides and the rear side; the first sealing strip (331) is configured to cooperate with the sealing groove (411); the second sealing strip (332) is configured to cooperate with the extrusion wall (412); When the third actuator (31) drives the cover plate (33) to open via the third gear set (32), the first sealing strip (331) disengages from the sealing groove (411) and the second sealing strip (332) disengages from the extrusion wall (412); when the third actuator (31) drives the cover plate (33) to close via the third gear set (32), the first sealing strip (331) abuts against the sealing groove (411) and the second sealing strip (332) abuts against the extrusion wall (412).

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