CN210734090U - Windshield wiper - Google Patents

Abstract

The utility model discloses a wiper, guide rail including motor, clean wheel and horizontal direction, clean wheel is cylindric, and the dabber has been cup jointed to its internal fixation, a plurality of soft glue nails that radially stretch out of its surface equipartition, motor output shaft drives the dabber rotates and drives clean wheel is followed the guide rail removes about window glass on the surface. The utility model discloses wiper passes through the motor and drives cleaning wheel rotation and clean glass, and dirt on the radial flexible glue nail roll scraping glass of all cloth on the cleaning wheel even dirty filth bonds on glass and forms unevenness's face, also can clean.

Description

Windshield wiper

Technical Field

The utility model relates to a windshield wiper technical field, in particular to windshield wiper.

Background

At present, a wiper is also called a wiper, a wiper blade or a windshield wiper, and is a device for wiping and removing raindrops and dust attached to a windshield of a vehicle, so as to improve visibility of a driver and increase driving safety. In addition to automobiles, other transportation means are provided with wipers such as trains, trams, and the like. Some engineering machines, such as cranes, etc., are also equipped with wipers. When the motor vehicle is used, besides dust deposition, mud spots on the front glass and pollutants such as marks left by collision of flying insects or bird droppings are often adhered to the front glass, the pollutants are difficult to clean by matching the existing windshield wipers with sprayed glass water or other cleaning liquids, a large amount of stains are often formed on the glass, the sight line is influenced, and the driving danger is caused. Since the stains are adhered to the glass and form an uneven surface, it is difficult for a general wiper blade to remove the stains.

Disclosure of Invention

The utility model provides a wiper with better cleaning effect for solving the technical problems existing in the prior art.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a wiper comprises a motor, a cleaning wheel and a guide rail in the horizontal direction, wherein the cleaning wheel is cylindrical, a mandrel is fixedly sleeved in the cleaning wheel, a plurality of soft rubber nails extending out in the radial direction are uniformly distributed on the outer surface of the cleaning wheel, and an output shaft of the motor drives the mandrel to rotate and drives the cleaning wheel to move left and right on the surface of window glass along the guide rail.

Further, the guide rail comprises an upper guide rail and a lower guide rail which are parallel to each other; the upper end and the lower end of the cleaning wheel are respectively and correspondingly provided with an upper guide bearing group and a lower guide bearing group; the upper guide bearing group is provided with a pair of bearings which clamp the front side surface and the rear side surface of the upper guide rail and roll relative to the surface of the upper guide rail; the lower guide bearing group is provided with a pair of bearings which clamp the front side surface and the rear side surface of the lower guide rail and roll relative to the surface of the lower guide rail; an arc-shaped cleaning wheel shell is arranged outside the cleaning wheel; the upper end and the lower end of the cleaning wheel shell are correspondingly provided with an upper cover and a lower cover; the upper cover and the lower cover are respectively and correspondingly provided with a bearing matched with the mandrel; the upper guide bearing group is fixedly connected with the upper cover; the lower guide bearing group is fixedly connected with the lower cover.

Furthermore, the upper guide bearing sets are a pair and are respectively arranged on the left side and the right side of the motor.

Further, the upper cover is provided with a side wall which extends upwards from the edge of the upper surface of the upper cover and is used for retaining water; the lower cover is provided with a side wall extending downwards from the edge of the lower surface of the lower cover and used for retaining water.

The motor is characterized by further comprising a rack arranged in parallel with the guide rail, and a first gear and a second gear are fixedly sleeved on an output shaft of the motor in sequence; the first gear is meshed with the rack; the upper end of the mandrel is fixedly sleeved with a third gear; the third gear is engaged with the second gear.

Furthermore, the two ends of the rack are provided with baffle plates, and a rubber block is arranged between the rack and the baffle plates.

Further, the cleaning rubber strip is also included; the head part of the cross section of the cleaning rubber strip is circular, and the tail part of the cross section of the cleaning rubber strip is splayed; the cleaning wheel shell is provided with an adhesive tape groove which is communicated up and down; the head of the cleaning rubber strip is embedded into the rubber strip groove.

Furthermore, the device also comprises a telescopic frame, a water pump, a water pipe and a nozzle; the nozzle is fixed in the cleaning wheel shell; one end of the water pipe is communicated with a water outlet of the water pump, and the other end of the water pipe is communicated with the nozzle; the telescopic frame comprises two groups of telescopic frame sheets; each group of the expansion bracket pieces are sequentially connected end to form a straight line, and two adjacent expansion bracket pieces are respectively rotatably sleeved at two ends of a hollow connecting pipe; the two groups of expansion bracket sheets are connected in a one-to-one correspondence manner at the center through a hollow rivet; the water pipe and one group of the expansion bracket sheets are arranged in parallel.

Furthermore, the water pipe sequentially penetrates through the connecting pipes of the group of expansion bracket pieces.

Further, the cleaning device also comprises a travel switch for detecting the left-right moving position of the cleaning wheel.

The utility model has the advantages and positive effects that: novel wiper passes through the motor and drives the cleaning wheel and rotate and clean glass, and dirt on the radial flexible glue nail roll scraping glass of all cloth on the cleaning wheel even dirty filth bonds on glass and forms unevenness's face, also can clean, can not lead to the fact wearing and tearing to glass, and does not have the dead angle, increases water jet equipment simultaneously, makes clean effect better.

Drawings

Fig. 1 is a schematic structural view of the present invention when the rack end baffle is not installed.

Fig. 2 is a plan view of the present invention.

Fig. 3 is a schematic structural view of the cleaning wheel assembly of the present invention.

Figure 4 is a schematic cross-sectional view of the cleaning wheel assembly of the present invention.

Fig. 5 is a schematic structural view of an expansion bracket of the present invention.

Fig. 6 is a schematic view of a split structure of the telescopic frame of the present invention.

Figure 7 is a front view of the upper cover of the cleaning wheel assembly of the present invention.

Figure 8 is a cross-sectional view of the upper cover of the cleaning wheel assembly of the present invention.

Figure 9 is a top plan view of the upper cover of the cleaning wheel assembly of the present invention.

Figure 10 is a bottom view of the upper cover of the cleaning wheel assembly of the present invention.

Figure 11 is a bottom view of the lower cover of the cleaning wheel assembly of the present invention.

Figure 12 is a top view of the lower cover of the cleaning wheel assembly of the present invention.

Figure 13 is a cross-sectional view of the lower cover of the cleaning wheel assembly of the present invention.

Fig. 14 is a schematic structural view of the left gear bracket assembly of the present invention.

Fig. 15 is a schematic view of the bottom bracket mechanism of the present invention.

Fig. 16 is a schematic view of the rack shock absorbing structure of the present invention.

Fig. 17 is a schematic view of the split structure of the telescopic frame connecting rotating shaft assembly of the present invention.

In the figure: 1. a lower bracket; 2. a lower cover waterproof plate; 3. a telescopic frame; 4. a rotating shaft assembly; 5. a left rack bracket; 6. a first electromagnetic pin; 7. a travel switch; 8. a motor; 9. an upper right guide bearing set; 10. a rack; 11. a second gear; 12. a water pipe; 13. a cleaning wheel housing; 14. a lower guide bearing set; 15. a lower guide rail; 16. a middle rack bracket; 17. a right rack bracket; 18. a second electromagnetic pin; 19. an upper left guide bearing set; 20. a cleaning wheel; 21. a third gear; 22. an upper cover; 23. connecting lugs; 24. a bearing on the mandrel; 25. soft rubber nails; 26. a nozzle; 27. cleaning the adhesive tape; 28. a mandrel; 29. a lower cover; 30. a mandrel lower bearing; 31. a connecting pipe; 32. a water diversion pipe; 33. a hollow rivet; 34. a telescopic frame sheet; 35. an upper cover bearing groove; 36. an upper cover motor mounting hole; 37. an upper cover cleaning rubber strip mounting groove; 38. a lower cover bearing groove; 39. a baffle plate; 40. a rubber block; 41. mounting holes; 42. a rotating shaft; 43. a shaft sleeve; 44. and a spring retainer ring.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments are listed and will be described in detail with reference to the accompanying drawings:

referring to fig. 1 to 17, a wiper includes a motor 8, a cleaning wheel 20 and a horizontal guide rail, the cleaning wheel 20 is cylindrical, a mandrel 28 is fixedly sleeved in the cleaning wheel 20, a plurality of soft rubber nails 25 extending radially are uniformly distributed on the outer surface of the cleaning wheel 20, an output shaft of the motor 8 drives the mandrel 28 to rotate, and the motor also drives the cleaning wheel 20 to move left and right on the surface of the window glass along the guide rail.

Further, the guide rails may include upper and lower guide rails 15 parallel to each other; the upper end and the lower end of the cleaning wheel 20 are respectively and correspondingly provided with an upper guide bearing group and a lower guide bearing group 14; the upper guide bearing group can be provided with a pair of bearings which clamp the front and rear side surfaces of the upper guide rail and roll relative to the surface of the upper guide rail; the lower guide bearing set 14 may be provided with a pair of bearings which sandwich the front and rear side surfaces of the lower guide rail 15 and roll against the surfaces thereof; an arc-shaped cleaning wheel shell 13 can be arranged outside the cleaning wheel 20. The cleaning wheel housing 13 may be cylindrical with an opening at the side, and the soft rubber nails of the cleaning wheel extend out of the opening.

The upper end and the lower end of the cleaning wheel shell 13 can be correspondingly provided with an upper cover 22 and a lower cover 29; the upper cover 22 and the lower cover 29 can be respectively provided with bearings matched with the mandrel 28, and the bearings comprise a mandrel upper bearing 24 and a mandrel lower bearing 30; the upper cover 22 is provided with an upper cover bearing groove 35 for installing the positioning mandrel upper bearing 24; the lower cover 29 is provided with a lower cover bearing groove 38 for mounting the positioning spindle lower bearing 30.

The upper guide bearing set can be fixedly connected with the upper cover 22; the lower guide bearing set 14 can be fixedly connected with the lower cover 29.

The upper cover 22, the lower cover 29, the cleaning wheel 20, the cleaning wheel housing 13, the mandrel 28, the mandrel upper bearing 24, the mandrel lower bearing 30, the lower guide bearing set 14 and the like can form a cleaning wheel assembly. The cleaning wheel shell 13, the upper cover 22 and the lower cover 29 can be correspondingly provided with connecting lugs 23; when the cleaning wheel housing 13 is fixedly connected with the upper cover 22 and the lower cover 29, the cleaning wheel housing is fixed by bolts through the corresponding connecting lugs 23.

Further, the upper guide bearing group can be a pair, and comprises an upper left guide bearing group 19 and an upper right guide bearing group 9, and the upper left guide bearing group 19 and the upper right guide bearing group 9 can be respectively arranged at the left side and the right side of the motor 8.

Further, the upper cover 22 may be provided with a sidewall for retaining water extending upward from an upper surface edge thereof; the side wall of the upper cover 22 may be used to protect bearings and the like. The lower cover 29 may be provided with a sidewall for retaining water extending downward from the lower surface edge thereof, forming the lower cover waterproof sheet 2. The lower cover waterproof sheet 2 is used to protect a bearing and the like.

Furthermore, the utility model can also comprise a rack 10 which is arranged in parallel with the guide rail, and the output shaft of the motor 8 can be sequentially fixedly sleeved with a first gear and a second gear 11; the first gear can be meshed with the rack 10; the upper end of the mandrel 28 can be fixedly sleeved with a third gear 21; the third gear 21 may be engaged with the second gear 11. The first gear 11 and the second gear 11 are driving gears, and the third gear 21 is a driven gear.

The rack 10 arranged in parallel with the guide rail is adopted, the first gear on the output shaft of the motor 8 is meshed with the rack 10, and when the motor 8 rotates, the motor 8 moves left and right along the rack 10, so that the cleaning wheel 20 is driven to move left and right along the guide rail on the surface of the car window glass. Other ways of moving the cleaning wheel 20 to the left and right along the guide rail on the surface of the window glass are also possible. The motor 8 drives the gear to drive the cleaning wheel 20 to rotate and can move left and right through the meshing rack 10.

The upper rail may be mounted on the rack 10. The rack 10 can be arranged on a rack 10 bracket, a plurality of gear brackets can be arranged from left to right, and the rack 10 can comprise a left rack bracket 5, a middle rack bracket 16 and a right rack bracket 17; the rack 10 bracket can be in an inverted U shape; the bracket with the upper part extending horizontally can be provided with devices such as an electromagnetic pin and the like; the rack 10 can be installed on the lower horizontal extending pallet.

The lower guide 15 may be mounted on the lower bracket 1, the lower bracket 1 may be provided with a horizontally extending pallet, and the lower guide 15 may be fixed on the pallet of the lower bracket 1.

In order to prevent the rack 10 from colliding and striking teeth when the gear is meshed with the gear when the motor 8 is started and stopped, a rack 10 damping structure is arranged at the end part of the rack 10; the shock absorbing structure of the rack 10 may include an end stop 39 of the rack 10, a rubber block 40, and a mounting screw, etc. The rack 10 may be provided with a baffle 39 at both ends, and a rubber block 40 may be disposed between the rack 10 and the baffle 39.

The anti-sliding electromagnetic clamping pin can be arranged, so that the electromagnetic clamping pin can be ejected out when not being cleaned, and the front end of the electromagnetic clamping pin is provided with two or three teeth matched with the rack and meshed with the rack, so that the vehicle can be prevented from sliding left and right when moving.

The lower part of the motor 8 can be provided with three connecting columns which correspond to the motor mounting holes 36 of the upper cover, and the motor 8 and the upper cover 22 are fixedly connected together through long bolts. The edge of upper cover 22 upwards extends and forms the lateral wall, and the lateral wall encloses into the appearance chamber, makes first gear, second gear 11, third gear 21 set up in upper cover 22 for safety protection, can avoid dust etc. to get into simultaneously.

The upper guide bearing group can be fastened on the shell of the motor 8 through an adjusting arm, the cleaning wheel shell 13 and the lower cover 29 can be respectively provided with 3 connecting lugs 23, the upper cover 22 is provided with a threaded hole, the upper cover and the cleaning wheel shell 13 can be fastened through screws, the connecting lugs 23 of the cleaning wheel shell 13 and the lower cover 29 can be fastened through three screws, and the upper cover 22 and the lower cover 29 can be correspondingly provided with bearings matched with the mandrel 28; the outer ring of the bearing is fixed in the upper cover 22 and the lower cover 29, the inner ring is fixed with the mandrel 28, the mandrel 28 of the cleaning wheel 20 can rotate freely under the support of the upper bearing and the lower bearing, and the cleaning wheel is driven by the gear of the output shaft of the motor 8 to rotate.

Furthermore, in order to facilitate cleaning and prevent water sprayed from the nozzle 26, the utility model can also comprise a cleaning rubber strip 27; the head part of the cross section of the cleaning rubber strip 27 can be circular, and the tail part can be splayed; the cleaning wheel shell 13 can be provided with a rubber strip groove which is communicated up and down; the head of the cleaning strip 27 can be inserted into the strip groove. The cleaning rubber strip 27 moves along with the cleaning wheel shell 13, so that water splashing and the like after the nozzle 26 is added inside can be prevented, dirt can be pushed to the side, and water can be supplied by an additional water pipe 12 and the like for flushing. An upper cover cleaning rubber strip mounting groove 37 can also be arranged at the bottom of the upper cover; for mounting a cleaning rubber strip 27 to prevent water from splashing upward.

Furthermore, the utility model can also comprise an expansion bracket 3, a water pump, a water pipe 12 and a nozzle 26; the nozzle 26 may be fixed within the cleaning wheel housing 13; one end of the water pipe 12 can be communicated with the water outlet of the water pump, and the other end of the water pipe 12 can be communicated with the nozzle 26; the expansion bracket 3 may comprise two sets of expansion bracket pieces 34; each group of the expansion bracket pieces 34 can be sequentially connected end to form a straight line, and two adjacent expansion bracket pieces 34 can be respectively sleeved at two ends of a hollow connecting pipe 31 in a rotating manner; the two groups of expansion bracket sheets 34 can be connected in the center through a hollow rivet 33 in a one-to-one correspondence manner; after the connection, two corresponding expansion bracket pieces 34 of the two groups of expansion bracket pieces 34 can form an X shape, the expansion to the maximum position is in a straight shape, the length interval of the expansion bracket 3 is set to be smaller than the length of the two groups of expansion bracket pieces 34 in the straight shape, the water pipe 12 can be arranged in parallel with one group of expansion bracket pieces 34, and wires and the like can be arranged in parallel along the other group of expansion bracket pieces 34. The wires can also be arranged simultaneously in parallel with the water tubes 12.

The telescopic frame 3 can be arranged on the left rack bracket 5, and the left rack bracket 5 can be in an inverted U shape; the bracket with the upper part extending horizontally can be provided with a first electromagnetic pin 6; the rack 10 can be installed on the lower horizontal extending pallet. The middle vertical part can be provided with a rotating shaft component 4; the rotating shaft assembly 4 can be similar to a folding structure and can comprise a rotating shaft 42, a shaft sleeve 43 and a spring retainer ring 44; the rotating shaft 42 penetrates into the shaft sleeve 43 and is rotatably connected with the shaft sleeve 43, a horizontal connecting plate is arranged at the upper part of the rotating shaft 42, and a mounting hole 41 for mounting the telescopic frame 3 is formed in the connecting plate; the lower part of the rotating shaft 42 is provided with a clamp spring retainer ring. The horizontal connecting plate and the circlip stop ring limit the rotation shaft 42 to move up and down.

Thus, the telescopic frame 3 is hinged with the left rack bracket 5; the telescopic frame 3 rotates relative to the left rack bracket 5. Thus, the left rack bracket 5 can be fixed to the vehicle, and the telescopic frame 3 can be freely telescopic in the left-right direction.

The water tubes 12 may be arranged as follows: the water pipe 12 may sequentially pass through the connection pipes 31 of a set of expansion bracket pieces 34. The water pipe 12 may include a plurality of divided water pipes 32 sequentially communicated through the connection pipe 31. The water diversion pipe 32 can be a hose or a hard pipe, and the hard pipe is bent into a U shape.

The wires may be arranged as follows: the lead can be sequentially passed through the connecting tube 31 of one set of the expansion bracket pieces 34, and the length of the lead is preferably equal to or slightly longer than the length of the two sets of the expansion bracket pieces 34 when the lead is in a straight line shape.

By arranging the nozzles 26 to spray water, the cleaning effect is better as the dirt is washed by spraying water from the nozzles 26 in the rotating process of the cleaning wheel 20. In order to facilitate the water pipe 12 to move along with the roller and prevent kinking, the telescopic frame 3 is provided, and the water pipe 12 is arranged on the telescopic frame 3, so that the water pipe 12 can be stretched along with the telescopic frame 3.

Further, the utility model discloses still can detect travel switch 7, the skid-proof electromagnetism round pin and the operating button etc. of removal position about cleaning wheel 20 also can be equipped with the controller, and operating button can set up in the driver's cabin, and the controller can adopt existing on-vehicle controller, also can establish the controller alone. The operation button can output signals to the controller, and the controller can output signals to control the work of the motor 8, the water pump and the electromagnetic pin. The wiper can be operated in the cab by providing an operation button, a controller, and the like.

The travel switch 7 is arranged on a device which moves synchronously with the cleaning wheel 20, for example, the motor 8, and the detection that the multiple groups of cleaning wheels 20 move to different positions can be realized by arranging a plurality of toggle devices for toggling the toggle wheel of the travel switch 7 in the moving interval of the cleaning wheel 20.

For example, 3 movable pin shafts can be used, and a first electromagnetic pin 6, a second electromagnetic pin 18 and a third electromagnetic pin can be arranged and respectively installed corresponding to two ends and the middle of the rack 10, so that the position intervals of the first electromagnetic pin 6 and the second electromagnetic pin 18 are long stroke intervals of the cleaning wheel 20, and the position intervals of the first electromagnetic pin 6 and the third electromagnetic pin or the position intervals of the second electromagnetic pin 18 and the third electromagnetic pin are short stroke intervals of the cleaning wheel 20.

The electromagnetic pin is driven by electromagnetism, the pin shaft extends out, and when the travel switch 7 moving synchronously with the cleaning wheel 20 moves to the extending pin shaft, the extending pin shaft dials the dial wheel of the travel switch 7, so that the action of the dial wheel can send an in-place signal. The travel switch 7 sends a signal to a controller or other conventional control circuits, and the controller or other conventional control circuits output a signal to the motor 8 to change or stop the rotation direction of the motor 8 so as to drive the cleaning wheel 20 to return or stop; the power supply of the electromagnetic coils of the first electromagnetic pin 6, the second electromagnetic pin 18 and the third electromagnetic pin is switched on or off through a controller or other conventional control circuit, so that the first electromagnetic pin 6, the second electromagnetic pin 18 and the third electromagnetic pin are switched on/off, and the pin shafts of the first electromagnetic pin 6, the second electromagnetic pin 18 and the third electromagnetic pin are extended or retracted. Two of the three electromagnetic pins are extended at a time to determine the stroke of the cleaning wheel 20 back and forth.

A plurality of switches such as a first switch and a second switch can be arranged according to a cab to control the starting and stopping of the motor 8, the on-off of the electromagnetic pin can be controlled, and the rotating speed of the motor 8 can be changed by arranging a knob.

For example, the first switch can be turned on to extend the pin of the first electromagnetic pin 6 and the pin of the second electromagnetic pin 18, so that the motor 8 rotates to operate the water pump to spray water to the nozzle 26 in the cleaning wheel housing 13, and the motor 8 drives the cleaning wheel 20 to move left and right along the upper guide rail of the rack 10 and simultaneously drives the cleaning wheel 20 to rotate.

When the first electromagnetic pin 6 is moved to the position, the pin shaft of the first electromagnetic pin 6 extends out, and the extended pin shaft toggles the poking wheel of the travel switch 7 to make the action send a position signal. The motor 8 starts to rotate reversely and moves rightwards; when the moving device moves to the position of the second electromagnetic pin 18, the pin shaft of the second electromagnetic pin 18 extends out, and the extended pin shaft toggles the thumb wheel of the travel switch 7, so that the action of the thumb wheel sends a position signal. The motor 8 starts to rotate forward and moves leftward, and so on.

The first switch is closed, the motor 8 continues to rotate, and the water pump stops working. The motor 8 drives the gear to move along the rack 10 and simultaneously rotates the cleaning wheel 20. When the first electromagnetic pin 6 is moved to the position again, the pin shaft of the first electromagnetic pin 6 extends out, and the extending pin shaft toggles the poking wheel of the travel switch 7, so that the action of the poking wheel sends an in-place signal. The motor 8 stops operating.

Pressing the second switch of the cab retracts the pin of the second electromagnetic pin 18, extends the pin of the third electromagnetic pin, and the motor 8 drives the gear to move along the rack 10 and simultaneously drives the cleaning wheel 20 to rotate. When the third electromagnetic pin is moved to the position of the third electromagnetic pin, the pin shaft of the third electromagnetic pin extends out, and the extended pin shaft toggles the poking wheel of the travel switch 7, so that the action of the poking wheel sends an in-place signal. The motor 8 is enabled to change the direction, the cleaning wheel 20 starts to move leftwards, when the cleaning wheel moves to the position of the first electromagnetic pin 6, the pin shaft of the first electromagnetic pin 6 extends out, and the extending pin shaft toggles the thumb wheel of the travel switch 7, so that the thumb wheel acts to send a position signal. The motor 8 starts to rotate reversely and moves rightwards; this is repeated.

And (3) turning off a second switch of the cab, continuing to rotate the motor 8, moving to the position of the first electromagnetic pin 6 again, and triggering a poking wheel of the travel switch 7 by the extended pin shaft because the pin shaft of the first electromagnetic pin 6 extends out, so that the action of the poking wheel sends an in-place signal. The motor 8 stops operating.

A high speed, low speed knob may also be provided for controlling the speed of operation of the motor 8.

The above functions can be realized by using a conventional control circuit or controller.

The above-mentioned embodiments are only used for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, the scope of the present invention should not be limited by the embodiment, that is, all equivalent changes or modifications made by the spirit of the present invention should still fall within the scope of the present invention.

Claims (10)

1. A wiper is characterized by comprising a motor, a cleaning wheel and a guide rail in the horizontal direction, wherein the cleaning wheel is cylindrical, a mandrel is fixedly sleeved in the cleaning wheel, a plurality of soft rubber nails extending out in the radial direction are uniformly distributed on the outer surface of the cleaning wheel, and an output shaft of the motor drives the mandrel to rotate and drives the cleaning wheel to move left and right on the surface of window glass along the guide rail.

2. The wiper according to claim 1, wherein said guide rail comprises an upper guide rail and a lower guide rail which are parallel to each other; the upper end and the lower end of the cleaning wheel are respectively and correspondingly provided with an upper guide bearing group and a lower guide bearing group; the upper guide bearing group is provided with a pair of bearings which clamp the front side surface and the rear side surface of the upper guide rail and roll relative to the surface of the upper guide rail; the lower guide bearing group is provided with a pair of bearings which clamp the front side surface and the rear side surface of the lower guide rail and roll relative to the surface of the lower guide rail; an arc-shaped cleaning wheel shell is arranged outside the cleaning wheel; the upper end and the lower end of the cleaning wheel shell are correspondingly provided with an upper cover and a lower cover; the upper cover and the lower cover are respectively and correspondingly provided with a bearing matched with the mandrel; the upper guide bearing group is fixedly connected with the upper cover; the lower guide bearing group is fixedly connected with the lower cover.

3. The wiper blade according to claim 2, wherein the upper guide bearing group is a pair, respectively provided on both left and right sides of the motor.

4. The wiper according to claim 2, wherein the upper cover is provided with a side wall for retaining water extending upward from an upper surface edge thereof; the lower cover is provided with a side wall extending downwards from the edge of the lower surface of the lower cover and used for retaining water.

5. The wiper according to claim 2, further comprising a rack disposed in parallel with said guide rail, said motor output shaft having a first gear and a second gear fixedly secured thereto in sequence; the first gear is meshed with the rack; the upper end of the mandrel is fixedly sleeved with a third gear; the third gear is engaged with the second gear.

6. The wiper according to claim 5, wherein said rack gear is provided with a baffle at both ends, and a rubber block is provided between said rack gear and said baffle.

7. The wiper according to claim 2, further comprising a cleaning strip; the head part of the cross section of the cleaning rubber strip is circular, and the tail part of the cross section of the cleaning rubber strip is splayed; the cleaning wheel shell is provided with an adhesive tape groove which is communicated up and down; the head of the cleaning rubber strip is embedded into the rubber strip groove.

8. The wiper according to claim 2, further comprising a telescopic frame, a water pump, a water pipe and a nozzle; the nozzle is fixed in the cleaning wheel shell; one end of the water pipe is communicated with a water outlet of the water pump, and the other end of the water pipe is communicated with the nozzle; the telescopic frame comprises two groups of telescopic frame sheets; each group of the expansion bracket pieces are sequentially connected end to form a straight line, and two adjacent expansion bracket pieces are respectively rotatably sleeved at two ends of a hollow connecting pipe; the two groups of expansion bracket sheets are connected in a one-to-one correspondence manner at the center through a hollow rivet; the water pipe and one group of the expansion bracket sheets are arranged in parallel.

9. The wiper according to claim 8, wherein said water pipe passes through said connecting pipes of a set of said telescopic frame pieces in sequence.

10. The wiper according to claim 1, further comprising a travel switch for detecting a left-right movement position of the cleaning wheel.

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