A dust removal device for the inner surface of a through-type vehicle lamp cover

Abstract

The present invention discloses a dust removal device for the inner surface of a through-type vehicle lamp cover, comprising a support seat and a support column, a driving motor is provided at the top of the support column, a rotor of the driving motor is connected to the inner end of the driving shaft, a middle side wall of the driving shaft is fixedly connected to the supporting ring through a connecting arm, a plurality of cleaning components are provided on the supporting ring, a guide rail is provided on one side of the support seat, the column is slidably connected to the guide rail, a flip motor is provided on the top of the column, and the rotor end of the flip motor is connected to a clamping arm; the flip motor rotates the lamp cover to a vertical state, the driving cylinder rotates the adjusting rod relative to the supporting ring so that the bristles are aligned with the inner surface of the lamp cover, the movable cylinder can adjust the relative position of the bristles and the inner surface of the lamp cover, the telescopic cylinder adjusts the extended length of the bristles, and due to the length difference of the bristles, the bristles can better fit the inner surface of the lamp cover, the top plate and the piston rod end of the telescopic cylinder are spherically hinged, so that the bristles can follow the arc change or angle change in the width direction and the length direction of the lamp cover.

Description

Technical Field

[0001] The invention relates to a dust removal device, in particular to a dust removal device for the inner surface of a through-type vehicle lamp cover. Background Art

[0002] As more and more cars adopt through-type headlights that run across the left and right sides, the production of through-type headlights has increased year by year. Compared with the split headlights with independent left and right parts, the lampshades of through-type headlights are longer and the processing technology is more complicated. The outer surface of the existing lampshade needs to be sprayed with an anti-ultraviolet coating, while the inner surface of the lampshade needs to be sprayed with a coating to prevent the inner surface from fogging. The outer surface of the lampshade is completely exposed to the outside, which is convenient for processing, while the inner surface of the lampshade is curled up inside, which is inconvenient for processing. Before spraying the inner surface of the lampshade, the inner surface of the lampshade must be dusted. The commonly used dust removal method in the prior art is to use a high-pressure gas spray gun to spray the inner surface to remove dust and other impurities on the inner surface. However, the existing lampshade production process, including injection molding, annealing, dust removal and spraying, is carried out in an assembly line manner, and adjacent lampshades are separated by a set distance on the assembly line. When a high-pressure gas spray gun is used to spray a lampshade, dust and other particles blown out from the inner surface of the lampshade and disperse into the surrounding air. They are easily attached to adjacent lampshades located in front of and behind the lampshade, particularly to lampshades that have already been cleaned of dust, causing secondary contamination. Because the lampshade of a through-type headlight is concavely curved along its entire axis and has an inwardly concave cross-section, conventional brushes typically have flat ends. This type of brush is suitable for cleaning flat surfaces but not for cleaning curved surfaces such as the inner surface of the lampshade. Summary of the Invention

[0003] The present invention provides a dust removal device for the inner surface of a through-type vehicle lamp cover, which is used to overcome the defect in the prior art that the dust removal method of the through-type vehicle lamp cover during the production process cannot effectively remove the dust attached to the lamp cover one by one.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention discloses a dust removal device for the inner surface of a through-type vehicle lamp cover, comprising a support seat and a support column fixedly connected thereto, a drive motor being provided at the top end of the support column, a rotor of the drive motor being connected to the inner end of a drive shaft, a middle side wall of the drive shaft being fixedly connected to a support ring via a connecting arm, a plurality of cleaning components with adjustable angles and lengths being provided on the support ring via an adjusting rod, a guide rail being provided on one side of the support seat, a column being slidably connected to the support seat via a guide groove provided on the guide rail, a flipping motor for flipping the lamp cover being provided at the top of the column, and a clamping arm for clamping the lamp cover being connected to the rotor end of the flipping motor.

[0006] Furthermore, a base is provided under the lampshade, a dust hood is provided on the base, a drainage hole is provided in the dust hood, and a chip removal hole is provided in the base. The chip removal hole is aligned with the adjacent part of the drainage hole, and the chip removal hole is connected to an exhaust fan arranged outside, thereby forming a negative pressure on the upper side of the drainage hole to suck in the external gas.

[0007] Furthermore, the outer end of the driving shaft is provided with several cantilevers along the circumference, and the outer ends of several cantilevers are provided with driving cylinders. The outer ends of the piston rods of the driving cylinders are connected with positioning rings, and the outer ends of the piston rods are connected to the outer wall of the positioning ring. Several support rings adjacent to one side of the driving cylinders are provided with bushings, and the outer walls of several bushings are provided with annular positioning grooves along the circumference. A through hole is provided in the middle of the adjusting rod, and the through hole rotates and fits in the positioning groove and the adjusting rod is suitable for rotating around the support ring but cannot translate relative to the support ring. A positioning pin is provided on the side wall of the end of the adjusting rod close to the driving shaft, and the positioning pin extends into the positioning ring. A baffle is provided at the free end of the positioning pin. When the piston rod of the driving cylinder moves back and forth, the positioning ring and the positioning pin cooperate to realize the rotation and swinging of the adjusting rod around the support ring within a set angle, and the positioning pin moves back and forth in the positioning ring.

[0008] Furthermore, the positioning ring is set with a waist-shaped hole, the moving direction of the driving cylinder piston rod is parallel to the symmetry center line of the support ring, the long strip middle part of the positioning ring is perpendicular to the symmetry center line, and the diameter of the baffle is greater than the inner hole diameter of the positioning ring to prevent the positioning ring from falling off the positioning pin.

[0009] The cam is secured to the upper and lower ends of the cam, and the cam is secured to the lower ends of the cam, and the cam is secured to the lower ends of the cam. The outer ends of the piston rods of the telescopic cylinder are fixedly connected with ball heads, and the ball heads are covered by ball sleeves. The end of the ball sleeve away from the telescopic cylinder is fixedly connected to the side wall of the top plate adjacent to the telescopic cylinder. The edge of the side wall adjacent to the telescopic cylinder on the rear end cover is connected to one end of the hollow side cover, and the other end of the side cover is connected to the side wall of the front end cover adjacent to the telescopic cylinder. The front end cover is provided with a number of through holes evenly distributed circumferentially and radially, and a push rod is slidably fitted in the through holes. One end of the push rod passes through the front end cover and is connected with bristles, and the other end is located in the inner cavity and rests on the side wall of the top plate adjacent to the front end cover. An annular limit plate is fixedly sleeved on the middle of the push rod, and a return spring is provided between the limit plate and the front end cover. The return spring is sleeved on the outside of the push rod and is in a compressed state. Under the action of the return spring, the push rod is ensured to remain pressed against the top plate.

[0010] Furthermore, the rear end cover, side cover and front end cover form an inner cavity for accommodating the top plate, telescopic cylinder, ball sleeve and ball head, and the outer spherical surface of the ball head and the inner spherical surface of the corresponding ball sleeve are rotated together to form a spherical hinge joint.

[0011] Furthermore, the piston in the movable cylinder drives the rear end cover and the sliding sleeve to move back and forth synchronously along the axial direction of the adjusting rod through the movable rod. When the movable cylinder fails, the limit spring and the limit block play a safety protection role, which can prevent the sliding sleeve and the rear end cover from falling off the adjusting rod, and can also prevent the rear end cover and the movable cylinder, and the sliding sleeve and the bushing from colliding with each other.

[0012] Furthermore, the guide rail is parallel to the driving shaft of the driving motor, the guide block slides in the guide groove, the rotor center line of the flip motor is perpendicular to the guide rail and the driving shaft, and both ends of the clamping arm are provided with suction cups for adsorbing the lampshade.

[0013] The beneficial effects achieved by the present invention are: the lampshade is adsorbed on the clamping arm by a robot, the lampshade is rotated to a vertical state by a flip motor, the adjustment cylinder is driven to rotate the adjustment rod relative to the support ring, so that the bristles are aligned with the inner surface of the lampshade, the movable cylinder can adjust the relative position of the bristles and the inner surface of the lampshade, and the telescopic cylinder adjusts the extended length of the bristles. Due to the length difference of the bristles, the bristles can be better fitted with the inner surface of the lampshade. The top plate and the piston rod end of the telescopic cylinder are spherically hinged. The inclination direction of the top plate can be arbitrarily changed along its circumference, so that the bristles can follow the arc changes or angle changes in the width and length directions of the lampshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention Figure 2 ;

[0017] Figure 3 is a schematic cross-sectional view along the radial symmetric plane of the support ring of the present invention;

[0018] Figure 4 This invention Figure 3 A magnified schematic diagram of point A in the middle;

[0019] Figure 5 This is a partial schematic diagram of the present invention Figure 1 ;

[0020] Figure 6 This is a partial schematic diagram of the present invention Figure 2 ;

[0021] Figure 7 This is a partial schematic diagram of the present invention Figure 3 ;

[0022] Figure 8 This is a partial schematic diagram of the present invention Figure 4 ;

[0023] Figure 9 This is a partial schematic diagram of the present invention Figure 5 ;

[0024] Figure 10 This is a schematic diagram of the cooperation between the lampshade and the bristles along the axial direction of the lampshade in the present invention;

[0025] Figure 11 It is a schematic diagram of the cooperation between the lampshade and the bristles along the radial direction of the lampshade in the present invention.

[0026] Figure: 1, support base; 2, support column; 3, drive motor; 4, drive shaft; 5, connecting arm; 6, support ring; 7, cantilever; 8, drive cylinder; 9, positioning ring; 10, bushing; 11, positioning groove; 12, adjustment rod; 13, positioning pin; 14, baffle; 15, slide; 16, slide; 17, limit block; 18, rear end cover; 19, moving cylinder; 20, moving rod; 21, limit spring; 22, telescopic Cylinder; 23. Ball head; 24. Ball sleeve; 25. Top plate; 26. Side cover; 27. Front cover; 28. Push rod; 29. ​​Brush; 30. Limiting piece; 31. Return spring; 32. Guide rail; 33. Guide groove; 34. Guide block; 35. Column; 36. Flip motor; 37. Clamping arm; 38. Suction cup; 39. Dust hood; 40. Drainage hole; 41. Base; 42. Chip removal hole; 43. Lamp cover; 44. Brush head. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example 1

[0029] like Figure 1-11 As shown, a dust removal device for the inner surface of a through-type headlight cover includes a support base 1 and a support column 2 fixedly connected thereto. A drive motor 3 is provided at the top of the support column 2. The rotor of the drive motor 3 is connected to the inner end of a drive shaft 4. The middle side wall of the drive shaft 4 is fixedly connected to a support ring 6 via a pair of connecting arms 5. The rotor of the drive motor 3, the drive shaft 4, and the support ring 6 are co-symmetrically centered. The outer end of the drive shaft 4 is provided with a plurality of cantilevers 7 along the circumference, and the outer end of each cantilever 7 is provided with a drive cylinder 8, as shown in FIG. Figure 5-6As shown, the outer end of the piston rod of the drive cylinder 8 is connected to a locating ring 9, which has a waist-shaped hole. The outer end of the piston rod is connected to the outer wall of the elongated middle portion of the locating ring 9. The piston rod's movement direction is parallel to the centerline of symmetry of the support ring 6, and the elongated middle portion of the locating ring 9 is parallel to the perpendicular plane of the symmetry centerline. A bushing 10 is provided on the adjacent support ring 6 on one side of each drive cylinder 8. Each bushing 10 has an annular locating groove 11 circumferentially defined on its outer wall. An adjustment rod 12 has a through hole in its center that rotatably fits within the locating groove 11, allowing the adjustment rod 12 to rotate around the support ring 6 without translating relative to the support ring 6. A locating pin 13 is provided on the sidewall of the end of the adjustment rod 12 near the drive shaft 4. This locating pin 13 extends into the locating ring 9. A stopper 14 is provided at the free end of the locating pin 13. The diameter of the stopper 14 is larger than the inner diameter of the locating ring 9 to prevent the locating ring 9 from falling off the locating pin 13. The positioning pin 13 is cylindrical, with an outer diameter equal to the inner diameter of the waist-shaped hole in the positioning ring 9. This prevents movement in other directions during the relative sliding between the positioning pin 13 and the positioning ring 9, ensuring the positioning accuracy of the positioning ring 9 relative to the positioning pin 13. When the piston rod of the drive cylinder 8 reciprocates, the sliding fit between the positioning ring 9 and the positioning pin 13 enables the adjustment rod 12 to rotate and swing around the support ring 6 within a set angle, while the positioning pin 13 reciprocates within the positioning ring 9.

[0030] Figure 5 The driving cylinder 8 is shown in a state of contraction; Figure 6 The driving cylinder 8 is shown in a state in which it is extended.

[0031] The pair of outer walls of the adjusting rod 12 away from the outer end of the drive shaft 4 are respectively provided with a sliding groove 15 along the axial direction thereof. Each sliding groove 15 is a closed structure near the outer end of the adjusting rod 12. A sliding sleeve 16 is slidably mounted on the outer end of the adjusting rod 12. A limit block 17 is provided on the inner wall of the sliding sleeve 16, which extends into the corresponding sliding groove 15 and slides with the sliding groove 15. The limit block 17 is used to limit the sliding position of the sliding sleeve 16 on the adjusting rod 12. The limit block 17 is set at the end or middle of the sliding sleeve 16. Figure 7-8As shown, the outer end of the sliding sleeve 16, away from the drive shaft 4, is fixedly connected to the rear end cap 18. A movable cylinder 19 is provided on the outer end surface of the adjusting rod 12, away from the drive shaft 4. The inner end of the movable rod 20 is connected to the piston in the movable cylinder 19, and the outer end of the movable rod 20 is connected to the side wall of the rear end cap 18 adjacent to the adjusting rod 12. A plurality of limit springs 21 are also provided between the rear end cap 18 and the adjacent side walls of the adjusting rod 12. When the piston in the movable cylinder 19 reciprocates, it drives the rear end cap 18 and the sliding sleeve 16 to reciprocate synchronously along the axial direction of the adjusting rod 12 through the movable cylinder 20. If the movable cylinder 19 fails, the limit springs 21 and the limit block 17 act as a safety precaution, preventing the sliding sleeve 16 and the rear end cap 18 from falling off the adjusting rod 12 and preventing collisions between the rear end cap 18 and the movable cylinder 19, and between the sliding sleeve 16 and the bushing 10.

[0032] At least three telescopic cylinders 22 are evenly distributed along the circumference of the side wall of the rear end cover 18, away from the adjustment rod 12. The axial direction of each telescopic cylinder 22 is parallel to the adjustment rod 12. A ball head 23 is fixedly connected to the outer end of the piston rod of each telescopic cylinder 22. Each ball head 23 is fitted with a ball sleeve 24. The outer spherical surface of the ball head 23 rotates with the inner spherical surface of the corresponding ball sleeve 24 to form a spherical hinge joint. The ball sleeve 24 clamps and encases the ball head 23 to prevent the two from disengaging. One end of each ball sleeve 24, away from the telescopic cylinder 22, is fixedly connected to the side wall of the top plate 25 adjacent to the telescopic cylinder 22. The edge of the side wall of the rear end cover 18 adjacent to the telescopic cylinder 22 is connected to one end of a hollow side cover 26. The other end of the side cover 26 is connected to the side wall of the front end cover 27 adjacent to the telescopic cylinder 22. The rear end cover 18, side cover 26, and front end cover 27 form an inner cavity suitable for accommodating the top plate 25, telescopic cylinder 22, ball sleeve 24, and ball head 23. The front end cover 27 is provided with multiple through-holes distributed circumferentially and radially. A push rod 28 slidably fits within each through-hole. One end of each push rod 28 extends through the front end cover 27 and is connected to a bristle 29. The other end of each push rod 28 is located within the inner cavity and rests against the side wall of the top plate 25 adjacent to the front end cover 27. An annular stopper 30 is fixedly mounted in the middle of each push rod 28 within the inner cavity. A return spring 31 is installed between each stopper 30 and the front end cover 27. The return spring 31 is compressed and sleeved around the outside of the push rod 28. The return spring 31 ensures that the push rod 28 is continuously pressed against the top plate 25. The rear end cover 18 , telescopic cylinder 22 , ball head 23 , ball sleeve 24 , top plate 25 , side cover 26 , front end cover 27 , push rod 28 , bristles 29 , limit plate 30 , and return spring 31 constitute a brush head 44 .

[0033] like Figure 1-2As shown, one side of the support seat 1 is provided with a guide rail 32 of the assembly line, and the guide rail 32 is parallel to the driving shaft 4 of the driving motor 3; a guide groove 33 is provided in the guide rail 32 along the axial direction and with a T-shaped cross-section, and a guide block 34 is slidably fitted in the guide groove 33, and the top surface of the guide block 34 is provided with a column 35 extending out of the guide groove 33 and perpendicular to the guide groove 33. A flip motor 36 is fixedly provided on the top of the column 35 adjacent to the side wall of the support ring 6, and the center line of the rotor of the flip motor 36 is perpendicular to the guide rail 32 and the driving shaft 4. The end of the rotor is connected to a concave clamping arm 37, and both ends of the clamping arm 37 are provided with suction cups 38. The outer side surface of the lampshade 43 to be cleaned is suitable for being adsorbed on the pair of suction cups 38, so that the inner side surface of the lampshade 43 faces the support ring 6. A dust hood 39 is provided directly below the clamped lampshade 43, and a drainage hole 40 with a conical cross-section is provided in the dust hood 39. The diameter of the upper end is larger than the diameter of the lower end, thereby increasing the air intake volume at the upper end and the gas flow rate at the lower end. The lower end of the dust hood 39 is sealedly connected to the base 41, and a chip removal hole 42 is provided in the base 41. The chip removal hole 42 is aligned with the adjacent part of the drainage hole 40, and the chip removal hole 42 is connected to an exhaust fan arranged outside, thereby forming a negative pressure on the upper side of the drainage hole 40 and sucking in external gas.

[0034] The driving cylinder 8, moving cylinder 19 and telescopic cylinder 22 are suitable for using hydraulic cylinders or pneumatic cylinders to realize the reciprocating movement of their pistons; and are controlled by the controller together with the driving device of the vacuum pump, driving motor 3, flip motor 36, suction cup 38 and guide block 34.

[0035] Working principle: On the assembly line, the robot moves the lampshade 43 to one side of the clamping arm 37 and adsorbs it on the suction cup 38. The guide block 34 is driven by a conveyor belt or a screw mechanism (not shown in the figure) and moves along the guide groove 33 to the position where the flip motor 36 is facing the support ring 6, that is, the symmetry center line of the flip motor 36 is located in the radial symmetry plane of the support ring 6. The flip motor 36 rotates and drives the lampshade 43 to rotate to a vertical state, and the driving cylinder 8 drives the positioning ring 9 to move through its piston rod, so that the adjusting rod 12 rotates relative to the supporting ring 6, so that the bristles 29 on the brush head 44 are aligned with the set position on the inner surface of the lampshade 43 along the width direction of the lampshade 43, and the moving cylinder 19 drives the rear end cover 18 and the sliding sleeve 16 to move along the axial direction of the adjusting rod 12, thereby adjusting the relative distance between the end of the bristle 29 and the inner surface of the lampshade 43 to reach the set value, so that the end of the bristle 29 can be close to the inner surface of the lampshade 43; each telescopic cylinder 22 adjusts the elongation of its piston rod, drives the top plate 25 to deflect relative to the front end cover 27 and the rear end cover 18, and adjusts the length of each push rod 28 extending out of the front end cover 27 under the action of the reset spring 31, that is, adjusts the length of each bristle 29 extending out of the front end cover 27, such as Figure 9As shown, the ends of the bristles 29 at both side edges have a set length difference K. If the difference K changes tangentially along the rotation of the brush head 44, the ends of the respective bristles 29 can be matched with the inner surface of the lamp cover 43 whose arc changes axially, as Figure 10 shown, the fitting manner of the axial section of the lamp cover 43 and the bristles 29. When the bristles 29 are closely attached to the area with a relatively small arc change in the middle of the lamp cover 43, the length difference at their ends is W; when the bristles 29 are closely attached to the area with a relatively large arc change at the end of the lamp cover 43, the length difference at their ends is P, and it can be undoubtedly concluded that W < P. If the difference K changes along the direction of the rotation center line when the brush head 44 rotates, the ends of the respective bristles 29 can be fitted and matched with the inner surface of the lamp cover 43 having an inclination or arc change in the cross-section, as Figure 11 shown, the fitting manner of the cross-section (radial section) of the lamp cover 43 and the bristles 29. If in the cross-section of the lamp cover 43, there are both arc surfaces and corner surfaces at its edge, when the bristles 29 are in contact with the arc surface, the length difference at their ends is N; when the bristles 29 are in contact with the corner surface, the length difference at their ends is M, and this difference M can be adjusted according to the change of the angle of the corner, such as Figure 11 the different corner surfaces with angle B and angle C in. Since the top plate 25 and the end of the piston rod of the telescopic cylinder 22 are in a spherical hinge connection, the tilting direction of the top plate 25 can be in any direction along its circumferential direction, and since the bristles 29 are evenly distributed along the circumferential and radial directions of the front end cover 27, the elongation of the ends of the bristles 29 can be adjusted in any direction along the circumferential direction of the front end cover 27, finally enabling the bristles 29 to not only match the arc or angle change along the width direction or radial direction of the lamp cover 43, but also cooperate with the movable sliding sleeve 16 to match the arc change along the length direction or axial direction of the lamp cover 43.

[0036] The drive motor 3 drives the support ring 6 to rotate through the drive shaft 4, so that the bristles 29 contact a set part of the inner surface of the lamp cover 43 and the bristles sweep across the inner surface of the lamp cover 43 from top to bottom and along the length direction of the lamp cover 43. The air extractor works, and the dust brought out by the bristles 29 on each brush head 44 from the lower end opening of the lamp cover 43 is sucked into the dust suction cover 39. Since the dust remains inside the lamp cover 43 before leaving the lower end opening of the lamp cover 43, secondary pollution caused by the scattering of dust during the cleaning process is prevented. As a preference, the bristles 29 first clean the lower half of the inner surface of the lamp cover 43, and then the brush head 44 retracts and returns to its original position. The flipping motor 36 flips the lamp cover 43 by 180°, and the above process is repeated, so that the bristles 29 clean the other half of the inner surface of the lamp cover 43. This mode can make less dust accumulate on the bristles each time the bristles sweep across the lamp cover 43, and the dust swept out from the lower end opening of the lamp cover 43 is collected by the dust suction cover 39 under the combined action of its gravity and the suction force of the drainage hole 40. Since the gravity and the suction force are in the same direction and the smaller amount of dust and the single-direction collection further prevent the dust from scattering in other directions.

[0037] During operation, the drive cylinder 8 drives the positioning ring 9 to move, the moving cylinder 19 drives the rear end cover 18 to move axially along the adjustment rod 12, each telescopic cylinder 22 adjusts the deflection direction and angle of the top plate 25 by the extension of the piston rod, and the drive motor 3 drives the support ring 6 to rotate via the drive shaft 4. These steps can be performed simultaneously, so that during the cleaning process, the contact position and fit between the bristles 29 and the inner surface of the lampshade 43 can be adjusted in real time, thereby improving the cleaning efficiency and leaving no blind spots. The bristles 29 on each brush head 44 arranged along the circumference of the support ring 6 can be adjusted independently. When the support ring 6 rotates, it is suitable for adjusting the bristles 29 on each brush head 44 to make them contact different parts of the inner surface of the lampshade 43, further improving the cleaning efficiency.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dust removal device for the inner surface of a through-type vehicle lamp cover, characterized in that: It includes a support base and a support column fixedly connected thereto, a drive motor is provided at the top of the support column, the rotor of the drive motor is connected to the inner end of the drive shaft, the side wall of the middle portion of the drive shaft is fixedly connected to the support ring through a connecting arm, and the support ring is provided with a plurality of cleaning components with adjustable angles and lengths through an adjusting rod, a guide rail is provided on one side of the support base, and the column is slidably connected to the guide rail through a guide groove provided on the guide rail, a flip motor for flipping the lampshade is provided at the top of the column, and the rotor end of the flip motor is connected to a clamping arm for clamping the lampshade; The cleaning component includes an adjusting rod, and the upper and lower outer walls of the outer end of the adjusting rod are respectively provided with a sliding groove along its axial direction. The sliding groove is a closed structure adjacent to the outer end of the adjusting rod. A sliding sleeve is slidably mounted on the outer end of the adjusting rod, and a limit block is provided on the inner wall of the sliding sleeve to extend into the corresponding sliding groove and slide with it. The limit block is arranged at the end or middle of the sliding sleeve to limit the sliding position of the sliding sleeve on the adjusting rod. The outer end of the sliding sleeve is fixedly connected to the rear end cover, and a moving cylinder is provided on the outer end surface of the adjusting rod. The inner end of the moving rod is connected to the piston in the moving cylinder, and the outer end of the moving rod is adjacent to the rear end cover. The side walls of the section rod are connected, and a number of limit springs are provided between the rear end cover and the adjacent side walls of the adjusting rod. No less than three telescopic cylinders are evenly distributed along the circumferential direction on the side wall of the rear end cover away from the adjusting rod. The outer ends of the piston rods of the telescopic cylinders are respectively fixedly connected with ball heads, and the ball heads are covered by ball sleeves. One end of the ball sleeve away from the telescopic cylinder is fixedly connected to the side wall of the telescopic cylinder adjacent to the top plate. The edge of the side wall of the rear end cover adjacent to the telescopic cylinder is connected to one end of the hollow side cover, and the other end of the side cover is connected to the side wall of the front end cover adjacent to the telescopic cylinder. The front end cover is evenly distributed with a number of through holes along the circumferential direction and the radial direction. The rear end cover, side cover and front end cover form an inner cavity for accommodating the top plate, telescopic cylinder, ball sleeve and ball head, and the outer spherical surface of the ball head and the inner spherical surface of the corresponding ball sleeve are rotated together to form a spherical hinge joint; A push rod is slidably fitted in the through holes, one end of the push rod passes through the front end cover and is connected to bristles, the other end is located in the inner cavity and rests on the side wall of the top plate adjacent to the front end cover, an annular limit plate is fixedly sleeved on the middle part of the push rod, a return spring is provided between the limit plate and the front end cover, the return spring is sleeved on the outside of the push rod and is in a compressed state, and under the action of the return spring, the push rod is ensured to remain pressed against the top plate.

2. The inner surface dust removal device of a through-type vehicle lamp cover according to claim 1, characterized in that: A base is provided under the lampshade, a dust hood is provided on the base, a drainage hole is provided in the dust hood, a chip removal hole is provided in the base, the chip removal hole is aligned with the adjacent part of the drainage hole, and the chip removal hole is connected to an exhaust fan arranged outside, thereby forming a negative pressure on the upper side of the drainage hole to suck in external gas.

3. The inner surface dust removal device of a through-type vehicle lamp cover according to claim 1, characterized in that: The outer end of the driving shaft is provided with several cantilevers along the circumference, and the outer ends of several cantilevers are provided with driving cylinders. The outer ends of the piston rods of the driving cylinders are connected to positioning rings, and the outer ends of the piston rods are connected to the outer wall of the positioning ring. Bushings are provided on the adjacent support rings on one side of several driving cylinders, and annular positioning grooves are provided on the outer walls of several bushings along the circumference. A through hole is provided in the middle of the adjusting rod, and the through hole rotates and fits in the positioning groove and the adjusting rod is suitable for rotating around the support ring but cannot translate relative to the support ring. A positioning pin is provided on the side wall of the end of the adjusting rod close to the driving shaft, and the positioning pin extends into the positioning ring. A baffle is provided on the free end of the positioning pin. When the piston rod of the driving cylinder moves back and forth, the cooperation between the positioning ring and the positioning pin enables the adjusting rod to rotate and swing around the support ring within a set angle, and the positioning pin moves back and forth in the positioning ring.

4. The inner surface dust removal device of a through-type vehicle lamp cover according to claim 3, characterized in that: The positioning ring is set with a waist-shaped hole, the moving direction of the driving cylinder piston rod is parallel to the symmetry center line of the support ring, the long strip middle part of the positioning ring is perpendicular to the symmetry center line, and the diameter of the baffle is greater than the inner hole diameter of the positioning ring to prevent the positioning ring from falling off the positioning pin.

5. The inner surface dust removal device of a through-type vehicle lamp cover according to claim 1, characterized in that: The piston in the movable cylinder drives the rear end cover and the sliding sleeve to move back and forth synchronously along the axial direction of the adjusting rod through the movable rod. When the movable cylinder fails, the limit spring and the limit block play a safety protection role, which can prevent the sliding sleeve and the rear end cover from falling off the adjusting rod, and can also prevent the rear end cover and the movable cylinder, and the sliding sleeve and the bushing from colliding with each other.

6. The inner surface dust removal device of a through-type vehicle lamp cover according to claim 1, characterized in that: The guide rail is parallel to the driving shaft of the driving motor, the guide block slides in the guide groove, the rotor center line of the flip motor is perpendicular to the guide rail and the driving shaft, and both ends of the clamping arm are provided with suction cups for adsorbing the lampshade.

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