A lidar wiper linkage flip system and method of use

Abstract

The application discloses a laser radar wiper linkage flip cover system and a use method thereof, which comprises a main driving rod, a secondary driving rod, a linkage assembly, a connecting assembly and a cover plate; the main driving rod and the secondary driving rod are 7-shaped structures with the same size, are horizontally arranged with a left-right interval on a base, and are respectively connected with the base in a horizontal rotation mode; the horizontal edges of the main driving rod and the secondary driving rod are arranged in a horizontal longitudinal direction towards the back, a linkage assembly is arranged below the horizontal edges of the main driving rod and the secondary driving rod, the main driving rod is driven to rotate horizontally by a driving assembly, and the secondary driving rod is driven to rotate horizontally synchronously by the linkage assembly; the inclined edges of the main driving rod and the secondary driving rod are arranged in a right-back direction, the cover plate is arranged horizontally on the back side of the base, the lower surface of the cover plate is connected with the inclined edges of the main driving rod and the secondary driving rod at one end by the connecting assembly, and the cover plate is driven to open and close. The application realizes that the opening and closing actions of the cover plate and the movement of the wiper arm share one driving source, and simplifies the system structure.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a lidar wiper linkage flip-up system and its usage method. Background Technology

[0002] With the rapid development of autonomous driving technology, LiDAR, as a core perception sensor, is widely used in vehicle environmental perception systems. LiDAR is usually installed on the top of the vehicle or on the exterior of the vehicle body, and its optical window is directly exposed to the external environment, making it susceptible to the effects of pollutants such as rain, dust, and mud, which can lead to a decrease in detection accuracy or even failure.

[0003] To keep the lidar optical window clean, a wiper is currently installed on top of the lidar housing. A rotating mechanism and wiper linkage drive the wiper body to scrape the outer surface of the lidar emission window, thus cleaning it. However, existing lidar wiper systems have the following shortcomings: 1) The existing wiper cover and wiper arm are driven separately, resulting in a complex drive mechanism structure, numerous parts, and high cost; 2) Existing wiper covers generally use simple translation or flipping methods to open and close, requiring a large Z-axis space when open. For lidar mounted on the vehicle roof, excessive Z-axis space requirements can negatively impact the vehicle's appearance and aerodynamic performance; 3) Existing wiper covers experience uneven force during movement, leading to vibration and unstable operation. Therefore, how to reliably store the wiper cover within a limited Z-axis space while ensuring the smoothness and synchronization of its opening and closing has become a pressing problem to solve. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a lidar wiper linkage flip-up system and its usage method. By setting a drive column on the wiper arm drive block, and then cooperating with the drive column and the main drive rod through the slot, the opening and closing action of the cover and the movement of the wiper arm can share a single drive source, thereby simplifying the system structure and reducing manufacturing costs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A laser radar wiper linkage flip-up system of the present invention includes a base, a wiper, and a drive assembly; a wiper is provided on the rear side of the horizontally arranged base, the wiper having a vertical and horizontal flipping function, and moving horizontally through the drive assembly to clean the laser emission window; its innovation lies in: it also includes a main drive rod, a secondary drive rod, a linkage assembly, a connecting assembly, and a cover plate; the main drive rod and the secondary drive rod are of the same size in a 7-shape structure, and are horizontally arranged on the upper surface of the base with left and right intervals, their turning points being horizontally rotatably connected to the base; Both the main drive rod and the auxiliary drive rod have their horizontal edges arranged horizontally and longitudinally towards the rear. A linkage assembly is located directly below and between their horizontal edges. The drive assembly drives the main drive rod to rotate horizontally, and the linkage assembly drives the auxiliary drive rod to rotate horizontally synchronously. The inclined edges of both the main drive rod and the auxiliary drive rod are inclined to the right and rear. The cover plate is horizontally arranged on the rear side of the base. Its lower surface is connected to one end of the inclined edge of the main drive rod and one end of the inclined edge of the auxiliary drive rod through connecting assemblies. As the main drive rod and the auxiliary drive rod rotate horizontally, the cover plate opens and closes in the front and rear directions, ensuring that the movement of the cover plate does not interfere with the movement of the windshield wipers.

[0006] Preferably, the drive assembly includes a motor, a lead screw, a lead screw nut, and a wiper arm drive block; the base is a horizontally arranged hollow cuboid structure, and a lead screw is horizontally arranged inside it. The left and right ends of the lead screw are rotatably connected to the left and right inner sides of the base, respectively, and its right end extends vertically out of the base and is linked to the output end of the horizontally arranged motor; a matching lead screw nut is screwed onto the lead screw relative to the inside of the base, and under the drive of the motor, the lead screw reciprocates horizontally along the lead screw; on the rear side of the base relative to... The nut position is also provided with an L-shaped wiper arm drive block. One right-angled side of the wiper arm drive block extends horizontally forward to the interior of the base relative to the nut position, and then horizontally flips to the left and is screwed to the rear surface of the nut. The other right-angled side of the wiper arm drive block extends to the right, and the fixed end of the wiper is installed on the rear surface of the other right-angled side of the wiper arm drive block. This allows the wiper to move horizontally and laterally with the nut via the wiper arm drive block, and ensures that the base does not interfere with the horizontal and lateral movement and vertical and lateral flipping action of the wiper.

[0007] Preferably, a mounting plate is horizontally provided on the front side of the upper surface of the base. The rear side of the lower surface of the mounting plate is fixedly connected to the upper surface of the base relative to the front side of the linkage assembly, and does not interfere with the linkage rotation of the main drive rod and the auxiliary drive rod. A rivet I is vertically provided on the upper surface of the main drive rod at the turning point position, and the main drive rod is horizontally rotatably connected to the corresponding position of the upper surface of the mounting plate through the rivet I. A rivet II is vertically provided on the upper surface of the auxiliary drive rod at the turning point position, and the auxiliary drive rod is horizontally rotatably connected to the corresponding position of the upper surface of the mounting plate through the rivet II.

[0008] Preferably, it also includes a drive column; the horizontal sides of the main drive rod and the auxiliary drive rod extend horizontally and longitudinally backward from the rear side of the base, and a slot matching the drive column is vertically embedded in the middle of one end face of each horizontal side, ensuring that the upper and lower surfaces of each slot extend vertically from the upper and lower surfaces of the corresponding horizontal side of the main drive rod or the auxiliary drive rod; a drive column is also vertically provided on the upper surface of the right-angle side of the wiper arm drive block relative to the slot position on the main drive rod, and the upper end of the drive column extends vertically upward to the slot position of the main drive rod. As the nut moves horizontally laterally, the main drive rod rotates horizontally around rivet I through the engagement of the drive column with the corresponding slot, and the auxiliary drive rod rotates horizontally synchronously around rivet II through the linkage component.

[0009] Preferably, the linkage assembly includes a guide rail, a linkage rod, and a connecting column I; a guide rail is horizontally embedded between the midpoints of the horizontal sides of the main drive rod and the auxiliary drive rod on the upper surface of the base, and the length of the guide rail is greater than the distance between the main drive rod and the auxiliary drive rod; a linkage rod matching the guide rail is horizontally provided directly below the horizontal sides of the main drive rod and the auxiliary drive rod, and at a position relative to the guide rail, the length of the linkage rod is less than the length of the guide rail, and its lower surface is horizontally slidably connected to the guide rail; vertically positioned at the midpoints of the horizontal sides of the main drive rod and the auxiliary drive rod on the upper surface of the linkage rod are respectively... A connecting column I is provided, and a horizontally oriented sliding groove I is vertically embedded through the upper surface of the horizontal side of the main drive rod relative to the position between rivet I and the corresponding slot. Similarly, a horizontally oriented sliding groove II is vertically embedded through the upper surface of the horizontal side of the auxiliary drive rod relative to the position between rivet II and the corresponding slot. Both sliding grooves I and II are oblong hole structures that match the connecting column I, and the upper ends of the two connecting columns I are respectively inserted into the corresponding sliding groove I or sliding groove II. Through the cooperation of the linkage rod and the guide rail, and the cooperation of the two connecting columns I with the corresponding sliding grooves I or sliding groove II, the auxiliary drive rod and the main drive rod rotate horizontally synchronously.

[0010] Preferably, the connecting assembly includes an auxiliary rocker arm I, a hinge shaft I, an auxiliary rocker arm II, a hinge shaft II, a front axle, a connecting post II, and a sliding foot I; sliding feet I are also provided at left and right intervals on the lower surface of the cover plate near the front side, and a front axle is horizontally arranged between the two sliding feet I. The front axle and the main drive rod are arranged in the same horizontal plane, and the cover plate is axially rotatably connected to the front axle via the sliding feet I; horizontally arranged limiting grooves are vertically embedded and opened through the upper end face of the front axle relative to the two sliding feet I, and both limiting grooves are horizontally arranged waist-shaped holes, each matching the connecting post II; a horizontally inclined limiting groove is also provided between the left-side limiting groove and the inclined end of the main drive rod. An auxiliary swing rod I is provided, with its front end connected horizontally to one end of the inclined side of the main drive rod via a vertically arranged hinge shaft I. An auxiliary swing rod II is also horizontally inclined between the limiting groove on the right side and one end of the inclined side of the auxiliary drive rod, with its front end connected horizontally to one end of the inclined side of the auxiliary drive rod via a vertically arranged hinge shaft II. Connecting posts II, matching the limiting groove, are vertically arranged at the rear end of the upper surface of the auxiliary swing rod I and the rear end of the upper surface of the auxiliary swing rod II, respectively. The upper ends of the two connecting posts II are respectively inserted into the corresponding limiting grooves, allowing the front axle to translate forward and backward with the synchronous rotation of the main drive rod and the auxiliary drive rod, thereby driving the cover plate to translate forward and backward.

[0011] Preferably, it also includes guide end caps; guide end caps are vertically and symmetrically arranged on the upper surface of the base relative to the left and right sides of the mounting plate, and the two guide end caps cover the main drive rod and the auxiliary drive rod at intervals, ensuring that the two guide end caps do not interfere with the horizontal rotation of the main drive rod and the auxiliary drive rod; the distance between the inner sides of the two guide end caps matches the lateral length of the cover plate, and the length of the front axle matches the distance between the outer sides of the two guide end caps; and a horizontally longitudinally arranged guide groove is vertically embedded on the inner side of each guide end cap relative to the position of the front axle, and the rear end of each guide groove extends vertically out of the rear surface of the corresponding guide end cap, and matches the two ends of the front axle respectively, and the two ends of the front axle cooperate with the guide grooves of the corresponding guide end caps to ensure the stability of the front axle's forward and backward translation process.

[0012] Preferably, it also includes a sliding foot II and a rear axle; the front end face of the cover plate is provided with a horizontally and vertically sliding foot II at its left and right ends, and a rear axle is provided horizontally and laterally on the outer side of each sliding foot II at its front end, ensuring that the two rear axles are arranged horizontally and laterally in a straight line; an S-shaped groove matching the rear axle is also vertically embedded on the inner side of each guide end cover, and through the sliding engagement of the rear axle with the corresponding S-shaped groove and the rotational engagement of the sliding foot I with the front axle, the cover plate can rotate along the S-shaped curve trajectory while moving backward.

[0013] The innovative aspect of this invention, which describes a method for using a laser radar wiper-linked flip-up system, lies in the inclusion of the following steps: (1) When it is necessary to open the cover to activate the wipers for cleaning operations (1.1) Driven by the motor, the screw nut drives the wiper arm drive block to move horizontally to the left. At this time, through the cooperation of the drive column and the slot, the main drive rod is driven to rotate counterclockwise around the rivet I. At the same time, through the cooperation of the linkage rod, the connecting column I and the corresponding slide groove I, the auxiliary drive rod is driven to rotate counterclockwise around the rivet II. (1.2) As the main drive rod and the auxiliary drive rod rotate counterclockwise in sync, the front shaft moves backward through the cooperation of the auxiliary swing rod I, the auxiliary swing rod II, the connecting column II and the corresponding limiting groove, thereby causing the cover plate to move backward synchronously. The stability of the cover plate during the backward movement is ensured through the cooperation of the front shaft and the corresponding guide groove. (1.3) At the same time, through the cooperation of the rear axle and the corresponding S-shaped slide groove, and the rotation cooperation of the sliding foot I and the front axle, the cover plate moves backward while flipping and folding along the S-shaped curve trajectory. At this time, the wiper blade flips vertically and horizontally, and can then be used to clean the laser emission window. (2) Cover plate closing process (2.1) First, the wiper is flipped from vertical to horizontal to horizontal. Then, under the reverse drive of the motor, the screw nut drives the wiper arm drive block to move horizontally to the right. At this time, through the cooperation of the drive column and the slot, the main drive rod is driven to rotate clockwise around rivet I. At the same time, through the cooperation of the linkage rod, the connecting column I and the corresponding slide groove I, the auxiliary drive rod is driven to rotate clockwise around rivet II. (2.2) As the main drive rod and the auxiliary drive rod rotate clockwise synchronously, the front shaft moves forward through the cooperation of the auxiliary swing rod I, the auxiliary swing rod II, the connecting column II and the corresponding limiting groove, thereby making the cover plate move forward synchronously. The stability of the cover plate during the backward translation process is ensured through the cooperation of the front shaft and the corresponding guide slide. (2.3) Simultaneously, through the cooperation of the rear axle with the corresponding S-shaped groove and the rotational cooperation of the sliding foot I with the front axle, the cover plate moves forward while rotating and unfolding along the S-shaped curve trajectory until the cover plate returns to the closed state.

[0014] The beneficial effects of this invention are: (1) By setting a drive column on the wiper arm drive block and then cooperating with the slot of the drive column and the main drive rod, the cover opening and closing action and the wiper arm movement can share a drive source, thereby simplifying the system structure and reducing manufacturing costs. (2) By using the main drive rod, the auxiliary drive rod, the linkage rod, the auxiliary swing rod I and the auxiliary swing rod II in combination, the present invention can ensure the balance of forces on the left and right sides of the cover plate and ensure smooth operation during the opening and closing of the cover plate; (3) By cooperating with the S-shaped groove on the rear axle and the corresponding guide end cover, the cover can move along the S-shaped curve trajectory during the opening process, thereby realizing that the cover can be flipped and folded at the same time as it moves backward, which significantly reduces the Z-direction space requirement when the cover is open, which is beneficial to the overall vehicle appearance design and aerodynamic performance optimization. (4) The cover plate of the present invention is fixedly supported on the front axle by two sliding feet I and fixedly supported on the corresponding rear axle by two sliding feet II. By the cooperation of the front axle with the guide groove and the rear axle with the corresponding S-shaped groove, the problem of shaking and unstable operation of the cover plate during the movement can be avoided, and the smooth operation of the cover plate can be ensured. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a lidar wiper linkage flip-up system according to the present invention.

[0017] Figure 2 This is a schematic diagram of another perspective of the lidar wiper linkage flip-up system of the present invention.

[0018] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle.

[0019] Figure 4 This is a schematic diagram of the structure of the lidar wiper linkage flip-up system of the present invention after the base is removed.

[0020] Figure 5 This is a partially enlarged schematic diagram showing the connection relationship between the main drive rod and the auxiliary drive rod of the present invention.

[0021] Figure 6This is a schematic diagram of the structure of a lidar wiper linkage flip-up system of the present invention in the closed state.

[0022] Among them, 1-base; 2-motor; 3-lead screw; 4-lead nut; 5-wiper arm drive block; 6-drive column; 7-main drive rod; 8-secondary drive rod; 9-linkage rod; 10-rivet I; 11-connecting column I; 12-slide groove I; 13-slot; 14-hinge shaft I; 15-auxiliary swing arm I; 16-rivet II; 17-mounting plate; 18-slide groove II; 19-hinge shaft II; 20-auxiliary swing arm II; 21-front axle; 22-limiting groove; 23-connecting column II; 24-cover plate; 25-slide foot I; 26-rear axle; 27-guide end cover; 28-slide foot II; 29-S-shaped slide groove; 30-guide rail; 31-guide slide groove. Detailed Implementation

[0023] The technical solution of the present invention will be clearly and completely described below through specific embodiments.

[0024] This invention discloses a lidar wiper-linked flip-up system, comprising a base 1, a wiper, and a drive assembly. The wiper is mounted on the rear side of the horizontally arranged base 1, and has a vertical-to-horizontal flip-up function. It moves horizontally via the drive assembly to clean the laser emission window. The drive assembly includes a motor 2, a lead screw, a lead screw nut 4, and a wiper arm drive block 5. Figures 1-6 As shown, the base 1 is a horizontally arranged hollow cuboid structure, and a lead screw is horizontally arranged inside it. The left and right ends of the lead screw are rotatably connected to the left and right inner sides of the base 1, respectively, and its right end extends vertically out of the base 1 and is linked to the output end of the horizontally arranged motor 2. A matching nut 4 is screwed onto the lead screw relative to the inside of the base 1, and under the drive of the motor 2, the nut 4 performs horizontal reciprocating motion along the lead screw. An L-shaped wiper arm is also provided on the rear side of the base 1 relative to the position of the nut 4. The drive block 5 has one right-angled side extending horizontally forward to the interior of the base 1 relative to the nut 4, and then horizontally flipped to the left before being screwed to the rear surface of the nut 4. The other right-angled side of the drive block 5 extends to the right, and the fixed end of the wiper is mounted on the rear surface of the other right-angled side of the drive block 5. This allows the wiper to reciprocate horizontally with the nut 4 via the drive block 5, ensuring that the base 1 does not interfere with the horizontal movement and vertical flipping action of the wiper. The method of achieving vertical rotation of the wiper is prior art (refer to Chinese Patent Publication No. CN121180152A). The object of this invention is to achieve the linkage flipping of the cover plate 24 through a shared drive source without affecting the wiper's operation. Therefore, the structure and working principle of the wiper will not be described in detail here.

[0025] The present invention provides a lidar wiper linkage flip-up system, which further includes a main drive rod 7, a secondary drive rod 8, a linkage assembly, a connecting assembly, and a cover plate 24; the specific structure is as follows: Figures 1-6 As shown, the main drive rod 7 and the auxiliary drive rod 8 are 7-shaped structures of the same size, and are horizontally spaced on the upper surface of the base 1. Their turning points are respectively horizontally rotatably connected to the base 1. The horizontal sides of the main drive rod 7 and the auxiliary drive rod 8 are both horizontally longitudinally rearward, and a linkage component is provided directly below the horizontal sides of the two. The drive component drives the main drive rod 7 to rotate horizontally, and the linkage component drives the auxiliary drive rod 8 to rotate horizontally synchronously. The inclined sides of the main drive rod 7 and the auxiliary drive rod 8 are both inclined to the right rearward direction, and the cover plate 24 is horizontally arranged on the rear side of the base 1. Its lower surface is connected to one end of the inclined side of the main drive rod 7 and one end of the inclined side of the auxiliary drive rod 8 through the connecting component. As the main drive rod 7 and the auxiliary drive rod 8 rotate horizontally, the cover plate 24 is driven to open and close in the front and rear directions, and the movement of the cover plate 24 does not interfere with the movement of the windshield wiper.

[0026] like Figures 1-6 As shown, a mounting plate 17 is horizontally provided on the front side of the upper surface of the base 1. The rear side of the lower surface of the mounting plate 17 is fixedly connected to the upper surface of the base 1 relative to the front side of the linkage assembly, and does not interfere with the linkage rotation of the main drive rod 7 and the auxiliary drive rod 8. A rivet I 10 is vertically provided on the upper surface of the main drive rod 7 at the turning point position, and the main drive rod 7 is horizontally rotatably connected to the upper surface of the mounting plate 17 at the corresponding position through the rivet I 10. A rivet II 16 is vertically provided on the upper surface of the auxiliary drive rod 8 at the turning point position, and the auxiliary drive rod 8 is horizontally rotatably connected to the upper surface of the mounting plate 17 at the corresponding position through the rivet II 16.

[0027] In this invention, the horizontal sides of both the main drive rod 7 and the auxiliary drive rod 8 extend horizontally and longitudinally backward from the rear side of the base 1. Furthermore, at the midpoint of one end face of each horizontal side, a slot 13 matching the drive column 6 is vertically embedded, ensuring that the upper and lower surfaces of each slot 13 extend vertically from the upper and lower surfaces of the corresponding horizontal side of the main drive rod 7 or auxiliary drive rod 8. Figures 1-6 As shown, a drive post 6 is vertically provided on the upper surface of the right-angled side of the wiper arm drive block 5 at the position of the slot 13 on the main drive rod 7. The upper end of the drive post 6 extends vertically upward to the position of the slot 13 on the main drive rod 7. As the screw nut 4 moves horizontally, the main drive rod 7 rotates horizontally around the rivet I 10 through the engagement of the drive post 6 with the corresponding slot 13. The auxiliary drive rod 8 rotates horizontally synchronously around the rivet II 16 through the linkage assembly.

[0028] The linkage assembly of this invention includes a guide rail 30, a linkage rod 9, and a connecting post I 11; as shown Figures 1-6As shown, a guide rail 30 is horizontally embedded on the upper surface of the base 1 between the midpoints of the horizontal sides of the main drive rod 7 and the auxiliary drive rod 8, and the length of the guide rail 30 is greater than the distance between the main drive rod 7 and the auxiliary drive rod 8; a linkage rod 9 matching the guide rail 30 is horizontally positioned directly below the horizontal sides of the main drive rod 7 and the auxiliary drive rod 8, relative to the guide rail 30, and its length is less than the length of the guide rail 30, and its lower surface is horizontally slidably connected to the guide rail 30; connecting posts I11 are vertically positioned on the upper surface of the linkage rod 9 at the midpoints of the horizontal sides of the main drive rod 7 and the auxiliary drive rod 8, respectively, and on the upper surface of the horizontal side of the main drive rod 7... A horizontally oriented sliding groove I12 is vertically embedded and penetrated between the rivet I10 and the corresponding slot 13. A horizontally oriented sliding groove II18 is vertically embedded and penetrated on the upper surface of the horizontal side of the auxiliary drive rod 8, relative to the position between the rivet II16 and the corresponding slot 13. Both sliding grooves I12 and II18 are waist-shaped hole structures that match the connecting column I11. The upper ends of the two connecting columns I11 are respectively inserted into the corresponding sliding grooves I12 or II18. Then, through the cooperation of the linkage rod 9 and the guide rail 30, and the cooperation of the two connecting columns I11 with the corresponding sliding grooves I12 or II18, the auxiliary drive rod 8 and the main drive rod 7 rotate horizontally synchronously.

[0029] The connecting assembly of this invention includes an auxiliary swing arm I 15, a hinge shaft I 14, an auxiliary swing arm II 20, a hinge shaft II 19, a front axle 21, a connecting post II 23, and a sliding foot I 25; as shown Figures 1-6As shown, on the lower surface of the cover plate 24, at a forward position, there are sliding feet I 25 spaced to the left and right, and a front shaft 21 is horizontally arranged between the two sliding feet I 25. The front shaft 21 and the main drive rod 7 are arranged in the same horizontal plane, and the cover plate 24 is axially connected to the front shaft 21 through the sliding feet I 25. On the upper end surface of the front shaft 21, there are horizontally arranged limiting grooves 22 vertically embedded and opened between the two sliding feet I 25 at a left and right interval. Both limiting grooves 22 are horizontally arranged waist-shaped hole structures and are matched with the connecting column II 23. An auxiliary swing rod I 15 is horizontally inclined between the left limiting groove 22 and the inclined end of the main drive rod 7, and the front end of the auxiliary swing rod I 15 is connected by a vertically arranged hinge. The connecting shaft I14 is horizontally rotatably connected to one end of the inclined side of the main drive rod 7; an auxiliary swing rod II20 is also horizontally inclined between the right limit groove 22 and one end of the inclined side of the auxiliary drive rod 8, and the front end of the auxiliary swing rod II20 is horizontally rotatably connected to one end of the inclined side of the auxiliary drive rod 8 through a vertically set hinge shaft II19; at the rear end position of the upper surface of the auxiliary swing rod I15 and at the rear end position of the upper surface of the auxiliary swing rod II20, a connecting post II23 matching the limit groove 22 is also vertically set, and the upper ends of the two connecting posts II23 are respectively inserted into the corresponding limit grooves 22, so that the front shaft 21 moves back and forth in the synchronous rotation of the main drive rod 7 and the auxiliary drive rod 8, thereby driving the cover plate 24 to move back and forth in the same direction.

[0030] The present invention provides guide end caps 27 vertically and symmetrically arranged on the upper surface of the base 1 relative to the left and right sides of the mounting plate 17. The two guide end caps 27 alternately cover the main drive rod 7 and the auxiliary drive rod 8, ensuring that neither guide end cap 27 interferes with the horizontal rotation of the main drive rod 7 and the auxiliary drive rod 8. Figures 1-6 As shown, the distance between the inner sides of the two guide end caps 27 matches the lateral length of the cover plate 24, and the length of the front axle 21 matches the distance between the outer sides of the two guide end caps 27. A horizontally longitudinally arranged guide groove 31 is also vertically embedded on the inner side of each guide end cap 27 relative to the position of the front axle 21. The rear end of each guide groove 31 extends vertically out of the rear surface of the corresponding guide end cap 27 and matches the two ends of the front axle 21 respectively. The stability of the front axle 21 during the forward and backward translation process is ensured by the cooperation between the two ends of the front axle 21 and the guide groove 31 of the corresponding guide end cap 27.

[0031] like Figures 1-6As shown, sliding feet II 28 are horizontally and vertically provided on the front end face of the cover plate 24 near its left and right ends, and a rear shaft 26 is horizontally and laterally provided on the outer side of each sliding foot II 28 near its front end, ensuring that the two rear shafts 26 are horizontally and laterally aligned; an S-shaped groove 29 matching the rear shaft 26 is vertically embedded on the inner side of each guide end cover 27, and through the sliding engagement of the rear shaft 26 with the corresponding S-shaped groove 29, and the rotational engagement of the sliding foot I 25 with the front shaft 21, the cover plate 24 can rotate along the S-shaped curve trajectory while moving backward.

[0032] A method of using a laser radar wiper-linked flip-up system according to the present invention, such as... Figures 1-6 As shown, it includes the following steps: (1) When it is necessary to open the cover 24 to activate the wipers for cleaning operations (1.1) Driven by the motor 2, the screw nut 4 drives the wiper arm drive block 5 to move horizontally to the left. At this time, through the cooperation of the drive column 6 and the slot 13, the main drive rod 7 is driven to rotate counterclockwise around the rivet I 10. At the same time, through the cooperation of the linkage rod 9, the connecting column I 11 and the corresponding slide groove I 12, the auxiliary drive rod 8 is driven to rotate counterclockwise around the rivet II 16. (1.2) As the main drive rod 7 and the auxiliary drive rod 8 rotate counterclockwise in sync, the front axle 21 moves backward through the cooperation of the auxiliary swing rod I 15, the auxiliary swing rod II 20, the connecting column II 23 and the corresponding limiting groove 22, thereby causing the cover plate 24 to move backward synchronously. The stability of the cover plate 24 during the backward movement is ensured through the cooperation of the front axle 21 and the corresponding guide slide 31. (1.3) Simultaneously, through the cooperation of the rear axle 26 with the corresponding S-shaped slide groove 29 and the rotational cooperation of the sliding foot I 25 with the front axle 21, the cover plate 24 is moved backward while folding and flipping along the S-shaped curve trajectory. At this time, the wiper is flipped vertically and horizontally, so that the laser emission window can be cleaned. (2) Closing process of cover plate 24 (2.1) First, the wiper is flipped from vertical to horizontal to horizontal. Then, under the reverse drive of the motor 2, the screw nut 4 drives the wiper arm drive block 5 to move horizontally to the right. At this time, through the cooperation of the drive column 6 and the slot 13, the main drive rod 7 is driven to rotate clockwise around the rivet I 10. At the same time, through the cooperation of the linkage rod 9, the connecting column I 11 and the corresponding slide groove I 12, the auxiliary drive rod 8 is driven to rotate clockwise around the rivet II 16. (2.2) As the main drive rod 7 and the auxiliary drive rod 8 rotate clockwise synchronously, the front axle 21 moves forward through the cooperation of the auxiliary swing rod I 15, the auxiliary swing rod II 20, the connecting column II 23 and the corresponding limiting groove 22, thereby causing the cover plate 24 to move forward synchronously. The stability of the cover plate 24 during the backward translation process is ensured through the cooperation of the front axle 21 and the corresponding guide slide 31. (2.3) Simultaneously, through the cooperation of the rear axle 26 with the corresponding S-shaped groove 29 and the rotational cooperation of the sliding foot I 25 with the front axle 21, the cover plate 24 moves forward while rotating along the S-shaped curve trajectory and unfolds forward until the cover plate 24 returns to the closed state.

[0033] The beneficial effects of this invention are: (1) By setting a drive column 6 on the wiper arm drive block 5 and then cooperating with the slot 13 of the main drive rod 7, the opening and closing action of the cover plate 24 and the wiper arm movement can share a drive source, thereby simplifying the system structure and reducing manufacturing costs. (2) By using the main drive rod 7, the auxiliary drive rod 8, the linkage rod 9, the auxiliary swing rod I 15 and the auxiliary swing rod II 20 together, the present invention can ensure that the left and right sides of the cover plate 24 are balanced and that the cover plate 24 runs smoothly during opening and closing. (3) By cooperating with the S-shaped groove 29 on the corresponding guide end cover 27, the cover plate 24 can move along the S-shaped curve trajectory during the opening process, thereby realizing that the cover plate 24 can be flipped and folded at the same time as it moves backward, which significantly reduces the Z-direction space requirement of the cover plate 24 in the open state, which is beneficial to the overall vehicle appearance design and aerodynamic performance optimization. (4) The cover plate 24 of the present invention is fixedly supported on the front axle 21 by two sliding feet I 25 and fixedly supported on the corresponding rear axle 26 by two sliding feet II 28. By cooperating the front axle 21 with the guide groove 31 and the rear axle 26 with the corresponding S-shaped groove 29, the cover plate 24 can avoid shaking and unstable operation during movement, and ensure that the cover plate 24 runs smoothly during the process.

[0034] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, all modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the technical requirements.

Claims

1. A lidar wiper-linked flip-up system, comprising a base, a wiper, and a drive assembly; the wiper is provided on the rear side of the horizontally arranged base, the wiper having a vertical and horizontal flipping function, and moving horizontally via the drive assembly to clean the laser emission window; characterized in that: It also includes a main drive rod, a secondary drive rod, a linkage assembly, a connecting assembly, and a cover plate. The main drive rod and the secondary drive rod are 7-shaped structures of the same size, horizontally spaced on the upper surface of the base, with their turning points respectively connected to the base horizontally. The horizontal sides of the main drive rod and the secondary drive rod are both horizontally arranged longitudinally backward, and a linkage assembly is located directly below the horizontal sides of the two rods. The drive assembly drives the main drive rod to rotate horizontally, and the linkage assembly drives the secondary drive rod to rotate horizontally synchronously. The inclined sides of the main drive rod and the secondary drive rod are both inclined to the right rearward direction, and the cover plate is horizontally arranged laterally on the rear side of the base. Its lower surface is connected to one end of the inclined side of the main drive rod and one end of the inclined side of the secondary drive rod respectively through the connecting assembly. As the main drive rod and the secondary drive rod rotate horizontally, the cover plate opens and closes in the front and back directions, ensuring that the movement of the cover plate does not interfere with the movement of the windshield wipers.

2. The lidar wiper linkage flip-up system according to claim 1, characterized in that: The drive assembly includes a motor, a lead screw, a lead screw nut, and a wiper arm drive block. The base is a horizontally arranged hollow cuboid structure, and a lead screw is horizontally arranged inside it. The left and right ends of the lead screw are rotatably connected to the left and right inner sides of the base, respectively, and its right end extends vertically out of the base and is linked to the output end of the horizontally arranged motor. A matching lead screw nut is screwed onto the lead screw relative to the inside of the base, and under the drive of the motor, the lead screw nut performs horizontal reciprocating motion along the lead screw. A lead screw nut is located on the rear side of the base relative to the base nut. The location also includes an L-shaped wiper arm drive block. One right-angled side of the wiper arm drive block extends horizontally forward to the interior of the base relative to the nut position, and then horizontally flips to the left and is screwed to the rear surface of the nut. The other right-angled side of the wiper arm drive block extends to the right, and the fixed end of the wiper is mounted on the rear surface of the other right-angled side of the wiper arm drive block. This allows the wiper to reciprocate horizontally with the nut via the wiper arm drive block, and ensures that the base does not interfere with the horizontal movement and vertical flipping action of the wiper.

3. The lidar wiper linkage flip-up system according to claim 2, characterized in that: A mounting plate is horizontally provided on the front side of the upper surface of the base. The rear side of the lower surface of the mounting plate is fixedly connected to the upper surface of the base relative to the front side of the linkage assembly, and does not interfere with the linkage rotation of the main drive rod and the auxiliary drive rod. A rivet I is vertically provided on the upper surface of the main drive rod at the turning point position, and the main drive rod is horizontally rotatably connected to the upper surface of the mounting plate at the corresponding position through the rivet I; a rivet II is vertically provided on the upper surface of the auxiliary drive rod at the turning point position, and the auxiliary drive rod is horizontally rotatably connected to the upper surface of the mounting plate at the corresponding position through the rivet II.

4. The lidar wiper linkage flip-up system according to claim 3, characterized in that: It also includes a drive column; the horizontal sides of the main drive rod and the auxiliary drive rod extend horizontally and longitudinally backward from the rear side of the base, and a slot matching the drive column is vertically embedded in the middle of one end face of each horizontal side, ensuring that the upper and lower surfaces of each slot extend vertically from the upper and lower surfaces of the corresponding horizontal side of the main drive rod or the auxiliary drive rod; a drive column is also vertically provided on the upper surface of the right-angle side of the wiper arm drive block relative to the slot position on the main drive rod, and the upper end of the drive column extends vertically upward to the slot position of the main drive rod. As the nut moves horizontally laterally, the main drive rod rotates horizontally around rivet I through the engagement of the drive column with the corresponding slot, and the auxiliary drive rod rotates horizontally synchronously around rivet II through the linkage component.

5. A lidar wiper-linked flip-up system according to claim 4, characterized in that: The linkage assembly includes a guide rail, a linkage rod, and a connecting post I. A guide rail is horizontally embedded on the upper surface of the base between the midpoints of the horizontal edges of the main drive rod and the auxiliary drive rod, and the length of the guide rail is greater than the distance between the main drive rod and the auxiliary drive rod. A linkage rod, matching the guide rail, is horizontally positioned directly below the horizontal edges of the main drive rod and the auxiliary drive rod, and relative to the guide rail. The length of the linkage rod is less than the length of the guide rail, and its lower surface is horizontally slidably connected to the guide rail. Vertical connecting posts are also provided on the upper surface of the linkage rod at the midpoints of the horizontal edges of the main drive rod and the auxiliary drive rod, respectively. The main drive rod has a horizontally extending groove I that is vertically embedded in the upper surface of its horizontal side relative to the position between rivet I and the corresponding slot. Similarly, the auxiliary drive rod has a horizontally extending groove II that is vertically embedded in the upper surface of its horizontal side relative to the position between rivet II and the corresponding slot. Both grooves I and II are oblong hole structures that match the connecting rod I. The upper ends of the two connecting rods I are respectively inserted into the corresponding grooves I or II. Through the cooperation of the linkage rod and the guide rail, and the cooperation of the two connecting rods I with the corresponding grooves I or II, the auxiliary drive rod and the main drive rod rotate horizontally synchronously.

6. A lidar wiper-linked flip-up system according to claim 5, characterized in that: The connecting assembly includes an auxiliary rocker arm I, a hinge shaft I, an auxiliary rocker arm II, a hinge shaft II, a front shaft, a connecting post II, and a sliding foot I. Sliding feet I are spaced apart on the left and right sides of the lower surface of the cover plate, and a front shaft is horizontally positioned between the two sliding feet I. The front shaft and the main drive rod are located on the same horizontal plane, and the cover plate is axially rotatably connected to the front shaft via the sliding feet I. A horizontally positioned limiting groove is vertically embedded and opened between the two sliding feet I on the upper end face of the front shaft, and both limiting grooves are horizontally positioned oblong holes that match the connecting post II. An auxiliary rocker arm II is horizontally inclined between the left limiting groove and the inclined end of the main drive rod. A swing arm I is provided, and the front end of the auxiliary swing arm I is horizontally rotatably connected to one end of the inclined side of the main drive rod via a vertically set hinge shaft I. An auxiliary swing arm II is also horizontally inclined between the limiting groove on the right side and one end of the inclined side of the auxiliary drive rod, and the front end of the auxiliary swing arm II is horizontally rotatably connected to one end of the inclined side of the auxiliary drive rod via a vertically set hinge shaft II. A connecting post II matching the limiting groove is vertically provided at the rear end position of the upper surface of the auxiliary swing arm I and at the rear end position of the upper surface of the auxiliary swing arm II, and the upper ends of the two connecting posts II are respectively inserted into the corresponding limiting grooves, so that the front axle moves back and forth in the synchronous rotation of the main drive rod and the auxiliary drive rod, thereby driving the cover plate to move back and forth in the same direction.

7. A lidar wiper-linked flip-up system according to claim 6, characterized in that: It also includes guide end caps; on the upper surface of the base, guide end caps are vertically and symmetrically arranged on the left and right sides relative to the mounting plate, and the two guide end caps cover the main drive rod and the auxiliary drive rod at intervals, ensuring that the two guide end caps do not interfere with the horizontal rotation of the main drive rod and the auxiliary drive rod; the distance between the inner sides of the two guide end caps matches the lateral length of the cover plate, and the length of the front axle matches the distance between the outer sides of the two guide end caps; and a horizontally longitudinally arranged guide groove is vertically embedded on the inner side of each guide end cap relative to the position of the front axle, and the rear end of each guide groove extends vertically out of the rear surface of the corresponding guide end cap, and matches the two ends of the front axle respectively, and the two ends of the front axle cooperate with the guide grooves of the corresponding guide end caps to ensure the stability of the front axle's forward and backward translation process.

8. A lidar wiper-linked flip-up system according to claim 7, characterized in that: It also includes a sliding foot II and a rear axle; the front end face of the cover plate is provided with a horizontal and vertical sliding foot II at its left and right ends, and the outer side of each sliding foot II is provided with a horizontal and horizontal rear axle at its front end, ensuring that the two rear axles are arranged in a straight line horizontally; the inner side of each guide end cover is also provided with an S-shaped groove that matches the rear axle, and through the sliding engagement of the rear axle with the corresponding S-shaped groove and the rotational engagement of the sliding foot I with the front axle, the cover plate can rotate along the S-shaped curve trajectory while moving backward.

9. The method of using a lidar wiper-linked flip-up system according to claim 8, characterized in that... Includes the following steps: (1) When it is necessary to open the cover to activate the wipers for cleaning operations (1.1) Driven by the motor, the screw nut drives the wiper arm drive block to move horizontally to the left. At this time, through the cooperation of the drive column and the slot, the main drive rod is driven to rotate counterclockwise around the rivet I. At the same time, through the cooperation of the linkage rod, the connecting column I and the corresponding slide groove I, the auxiliary drive rod is driven to rotate counterclockwise around the rivet II. (1.2) As the main drive rod and the auxiliary drive rod rotate counterclockwise in sync, the front shaft moves backward through the cooperation of the auxiliary swing rod I, the auxiliary swing rod II, the connecting column II and the corresponding limiting groove, thereby causing the cover plate to move backward synchronously. The stability of the cover plate during the backward movement is ensured through the cooperation of the front shaft and the corresponding guide groove. (1.3) At the same time, through the cooperation of the rear axle and the corresponding S-shaped slide groove, and the rotation cooperation of the sliding foot I and the front axle, the cover plate moves backward while flipping and folding along the S-shaped curve trajectory. At this time, the wiper blade flips vertically and horizontally, and can then be used to clean the laser emission window. (2) Cover plate closing process (2.1) First, the wiper is flipped from vertical to horizontal to horizontal. Then, under the reverse drive of the motor, the screw nut drives the wiper arm drive block to move horizontally to the right. At this time, through the cooperation of the drive column and the slot, the main drive rod is driven to rotate clockwise around rivet I. At the same time, through the cooperation of the linkage rod, the connecting column I and the corresponding slide groove I, the auxiliary drive rod is driven to rotate clockwise around rivet II. (2.2) As the main drive rod and the auxiliary drive rod rotate clockwise synchronously, the front shaft moves forward through the cooperation of the auxiliary swing rod I, the auxiliary swing rod II, the connecting column II and the corresponding limiting groove, thereby making the cover plate move forward synchronously. The stability of the cover plate during the backward translation process is ensured through the cooperation of the front shaft and the corresponding guide slide. (2.3) Simultaneously, through the cooperation of the rear axle with the corresponding S-shaped groove and the rotational cooperation of the sliding foot I with the front axle, the cover plate moves forward while rotating and unfolding along the S-shaped curve trajectory until the cover plate returns to the closed state.

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