CN212956087U

CN212956087U - Automatic spraying line printer convenient for road surface cleaning and having rotatable function

Info

Publication number: CN212956087U
Application number: CN202021701936.4U
Authority: CN
Inventors: 黄军梅; 邓凯; 张建深
Original assignee: Dongguan Qiqu Robot Technology Co Ltd
Current assignee: Taiyuan Anrun Environmental Protection Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-13
Anticipated expiration: 2030-08-17

Abstract

The invention discloses an automatic spraying and scribing machine convenient for road surface cleaning and having a rotatable function, which comprises a vehicle body, wherein a handlebar is arranged on the left side of the upper surface of the vehicle body, an engine is arranged on the left side of the upper surface of the vehicle body, supporting seats are symmetrically arranged below the bottom of the right side of the vehicle body, rotating shafts are transversely arranged below the supporting seats, wheels are symmetrically arranged at two ends of each rotating shaft, a synchronous gear is arranged in the middle of each rotating shaft, an upper tooth groove of the synchronous gear is in meshing connection with a differential gear, and a helical gear is in meshing connection with the lower part of the left side of the differential gear. Thereby being beneficial to the working efficiency of road marking.

Description

Automatic spraying line printer convenient for road surface cleaning and having rotatable function

Technical Field

The invention relates to the technical field of scribing machine equipment, in particular to an automatic spraying scribing machine which is convenient for road surface cleaning and has a rotatable function.

Background

The line drawing machine is a road surface construction machine widely applied to roads, high and whole highways, parking lots, squares and runways and used for drawing out different constraint, guidance, warning and other rule limiting signs on flat ground, plays a great role in city planning and highway construction by virtue of the advantages of rapidness, high efficiency, accuracy and the like of the line drawing machine, saves the construction period and economic investment of road surface construction to the maximum extent, has the width of an international general road marking of 15 cm, and needs to buy the line drawing machine with the width adjusting function in consideration of the fact that the line drawing machine can be used in the parking lots, districts and other places, and is favorable for reasonable use and saves paint, and the general adjustable range is 5-15 cm.

Along with the gradual importance of the country to road construction, the suggestion lines on the road become very important, and the line striper that uses for the short distance now adopts plug-type mostly, constructor still need pay attention to whether the place ahead highway section has the fallen leaves on the orbit of drawing a line when drawing a line for the road, if need follow the personnel and clear up it along with the heart, when drawing the instruction arrow point simultaneously, usually adopt a plank to spread on ground and draw the triangle arrow point, fill up the coating in the arrow point afterwards, thereby need constructor make a round trip to stimulate and tear the machine, so use not very convenient, for this, we propose the automatic spraying line striper who is convenient for the road surface is clean and have rotatable function.

Disclosure of Invention

The invention aims to provide an automatic spraying and scribing machine with a rotatable function, which is convenient for road surface cleaning and solves the problems that when a road is scribed, a constructor needs to pay attention to whether fallen leaves are on a scribing track in a front road section or not, if the constructor needs to clean the road section, the constructor needs to pull and tear the machine back and forth due to the fact that a board is usually paved on the ground to draw a triangular arrow when an indication arrow is drawn, and then the arrow is filled with paint, so that the constructor needs to pull and tear the machine back and forth, and the use is inconvenient.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function comprises a vehicle body, wherein a handlebar is installed on the left side of the upper surface of the vehicle body, a spray gun switch is arranged below the handlebar on the left side of the handlebar, a connecting wire is connected to the back surface on the right side of the spray gun switch, universal wheels are symmetrically arranged on the bottom center line on the left side of the vehicle body, a scale is installed on the outer side of each universal wheel, an engine is arranged on the left side of the upper surface of the vehicle body, an air compressor is arranged on one side surface of the engine, a spraying machine is installed on the surface of the right side of the engine, a material suction pipe is connected to the middle part of the right side surface of the spraying machine, the end part above the material suction pipe is connected with the bottom of the right side of a material cylinder, an electric telescopic rod is connected to the bottom, a transverse supporting rod is installed below the rotating rod in a clamping mode, a spring is arranged inside the transverse supporting rod, sliding grooves are symmetrically formed in the upper surface and the lower surface of the transverse supporting rod, a nozzle is arranged in the sliding grooves in a transverse mode, a feeding pipe is connected to the middle of the upper surface of the nozzle, a clamping block is arranged at the right side end portion of the transverse supporting rod, supporting blocks are engaged with the inside of the clamping blocks in a clamping mode, one side of each supporting block is connected with the inside of the protective cover, supporting telescopic rods are symmetrically arranged on the center line of the upper surface of the protective cover, supporting seats are symmetrically installed below the bottom of the right side of the vehicle body, a rotating shaft is arranged below the supporting seats in a transverse mode, wheels are symmetrically arranged at two ends of the rotating shaft, a synchronizing gear is installed in the middle of the rotating shaft, a, and a rotary broom is arranged below the helical gear.

Preferably, be connected between one side tip of connecting wire and the flush coater, and the molding of handlebar is similar to bicycle tap handlebar, the structure of spray gun switch is similar with the bicycle manual brake.

Preferably, electric telescopic handle includes step motor, synchronizing wheel, hold-in range, follows driving wheel, driven screw, ball screw and push rod, and step motor's output top installs the synchronizing wheel, the hold-in range is installed to the below of synchronizing wheel, and the left side of hold-in range is provided with from the driving wheel, the inside crossing in shaft hole from the driving wheel is provided with driven screw, and driven screw's below is connected with ball screw, ball screw's below is connected with the push rod.

Preferably, the driven wheel is connected with the stepping motor through a synchronous belt and a synchronous wheel, the driven wheel is fixedly connected with the driven screw rod in a welding mode, and the ball screw rod is of a movable structure between the synchronous belt and the stepping motor.

Preferably, both ends of the spring are fixedly connected with the inside of the transverse supporting rod and the left side surface of the nozzle respectively, the upper part of the feeding pipe is connected with the bottom of the spraying machine, and the length of the feeding pipe is the circumference of the transverse supporting rod which rotates circularly by taking the rotating rod as an axis.

Preferably, the upper structure of protection casing is the rectangle, and the top of protection casing is the fretwork form, the inside triangle-shaped structure that is in the below of protection casing.

Preferably, the upper part and the west part of the supporting telescopic rod are fixedly connected with the bottom of the vehicle body and the protective cover respectively in a welding mode, the protective cover is movably connected with the clamping block through the supporting block, and the protective cover forms a linkage lifting structure with the supporting block through the electric telescopic rod and the transverse supporting rod.

Preferably, the width of the supporting seat is the same as the width of the vehicle body, the differential gear is connected with the bottom of the supporting seat and is on the same horizontal line with the synchronous gear, and the diameter of the differential gear is smaller than that of the synchronous gear.

Preferably, the shape of the rotary broom is circular, the rotary broom is connected with the differential gear through the helical gear, and the rotary broom drives the synchronous gear and the differential gear to form the linkage rotary mechanism through the rotation of the wheels.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the protective cover and the rotary broom are arranged at the bottom of the vehicle body, so that the internal spray gun equipment is protected conveniently, and the rotary broom is arranged so that garbage leaves on a paint spraying advancing route can be cleaned conveniently, the road surface is prevented from being cleaned in a manual area, and a triangular indicating arrow is drawn by using a wood board, thereby being beneficial to the working efficiency of road marking.

2. According to the invention, the controller is arranged at the bottom of the electric telescopic rod, the rotating rod is convenient to control to rotate clockwise and anticlockwise through the arrangement of the controller, and meanwhile, the spray nozzle is arranged in the transverse branch rod, and the spray head slides on the transverse branch rod through centrifugal force generated by rotation, so that a triangular indicating arrow can be sprayed uniformly.

3. According to the invention, the supporting telescopic rod is arranged at the bottom of the vehicle body and above the protective cover, the protective cover is convenient to fix through the arrangement of the supporting telescopic rod, the protective cover is convenient to fall along with the electric telescopic rod to be contacted with the ground through the arrangement of the clamping block and the supporting block, the damage of an indicating arrow head caused by the leakage of sprayed paint is avoided, and the attractiveness of a triangular arrow head indicating needle is facilitated.

4. According to the invention, the rotary broom is arranged behind the middle of the wheel, the wheel is arranged, so that the synchronous gear is driven to rotate while the rotary broom advances, and the differential gear is arranged, so that the rotating speed of the rotary broom is accelerated, the problem that fallen leaves and garbage cannot be moved out from a lineation track due to insufficient rotating force is avoided, and the attractiveness and integrity of linear paint spraying are facilitated.

5. According to the invention, the length of the feeding pipe is set to be the circumference of the outer ring of the transverse supporting rod, the nozzle can conveniently move on the transverse supporting rod through the arrangement of the feeding pipe, and meanwhile, the two ends of the feeding pipe are respectively connected to the bottom of the paint spraying machine and the upper part of the nozzle, so that the coating can be conveniently sprayed on the ground.

Drawings

FIG. 1 is a schematic side view of an automatic spraying and scribing machine with a rotatable function for cleaning road surfaces according to the present invention;

FIG. 2 is a schematic structural view of an electric telescopic rod of the automatic spraying line marking machine, which is convenient for road surface cleaning and has a rotatable function, of the invention;

FIG. 3 is an enlarged schematic view of the line drawing machine with rotatable spraying function at the position A in FIG. 1 for facilitating road surface cleaning;

FIG. 4 is a schematic view of the internal structure of a protective cover of the automatic spraying and scribing machine with a rotatable function for cleaning road surfaces according to the present invention;

FIG. 5 is a schematic view of a front vehicle body bottom wheel structure of the automatic spraying and line-marking machine with a rotatable function and convenient for road surface cleaning.

In the figure: 1. a vehicle body; 2. a handlebar; 3. a spray gun switch; 4. a connecting wire; 5. a universal wheel; 6. a scale; 7. an engine; 8. an air compressor; 9. a spray coater; 10. a material suction pipe; 11. a charging barrel; 12. an electric telescopic rod; 1201. a stepping motor; 1202. a synchronizing wheel; 1203. a synchronous belt; 1204. a driven wheel; 1205. a driven screw; 1206. a ball screw; 1207. a push rod; 13. a controller; 14. rotating the rod; 15. a transverse strut; 16. a spring; 17. a chute; 18. a nozzle; 19. a feed pipe; 20. a clamping block; 21. a support block; 22. a protective cover; 23. supporting the telescopic rod; 24. a supporting seat; 25. a rotating shaft; 26. a wheel; 27. a synchronizing gear; 28. a differential gear; 29. a helical gear; 30. the broom is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automatic spraying and scribing machine convenient for road surface cleaning and having a rotatable function comprises a vehicle body 1, a handlebar 2 is installed on the left side of the upper surface of the vehicle body 1, a spray gun switch 3 is arranged below the left handlebar of the handlebar 2, a connecting wire 4 is connected to the back surface of the right side of the spray gun switch 3, universal wheels 5 are symmetrically arranged on the center line of the bottom of the left side of the vehicle body 1, a scale 6 is installed on the outer sides of the universal wheels 5, an engine 7 is arranged on the left side of the upper surface of the vehicle body 1, an air compressor 8 is arranged on the surface of one side of the engine 7, a spraying machine 9 is installed on the surface of the right side of the engine 7, one side end part of the connecting wire 4 is connected with the spraying machine 9, the shape of the handlebar 2 is similar to that of a bicycle handlebar, the structure of the spray gun switch 3 is similar to, and meanwhile, the spray gun switch 3 is connected with the bottom of the coating machine 9, so that the switch of the coating machine 9 is convenient to control.

A material suction pipe 10 is connected to the middle of the right side surface of the coating machine 9, the end above the material suction pipe 10 is connected to the right bottom of the charging barrel 11, an electric telescopic rod 12 is connected to the bottom of the coating machine 9, a synchronizing wheel 1202 is installed above the output end of the stepping motor 1201, a synchronizing belt 1203 is installed below the synchronizing wheel 1202, a driven wheel 1204 is arranged on the left side of the synchronizing belt 1203, a driven screw 1205 transversely penetrates through the inside of a shaft hole of the driven wheel 1204, a ball screw 1206 is connected below the driven screw 1205, a push rod 1207 is connected below the ball screw 1206, the driven wheel 1204 is connected with the stepping motor 1201 through the synchronizing belt 1203 and the line between the synchronizing wheel 1202 and the stepping motor 1201, the driven wheel 1204 and the driven screw 1205 are fixedly connected through welding, the ball screw 1206 is of a movable structure through the synchronizing belt 1203 and the stepping motor 1201, and the function of, be convenient for drive synchronizing wheel 1202 of installation on the output to be convenient for set up in driven screw 1205 that sets up in the shaft hole inside from driving wheel 1204 and pass through hold-in range 1203 and drive clockwise and anticlockwise rotation, thereby make ball screw 1206 remove on driven screw 1205, be favorable to push rod 1207 up-and-down motion.

A controller 13 is arranged on the lower surface of the electric telescopic rod 12, a rotary rod 14 is connected with the middle part of the lower surface of the controller 13, a transverse supporting rod 15 is arranged below the rotary rod 14 in a clamping way, and the inside of the transverse supporting rod 15 is provided with a spring 16, the upper surface and the lower surface of the transverse supporting rod 15 are symmetrically provided with sliding chutes 17, a nozzle 18 is transversely arranged in the chute 17, the middle part of the upper surface of the nozzle 18 is connected with a feed pipe 19, two ends of the spring 16 are respectively and fixedly connected with the inner part of the transverse supporting rod 15 and the left side surface of the nozzle 18, the upper part of the feed pipe 19 is connected with the bottom of the coating machine 9, the length of the feed pipe 19 is the circumference of the transverse support rod 15 which rotates circularly by taking the rotary rod 14 as an axis, this arrangement serves to set the length of the feed pipe 19 to be the same size as the circumference of the transverse strut 15 in rotation, and at the same time, to facilitate the rotation of the nozzle 18, thereby facilitating the painting operation.

And the right side tip of horizontal branch 15 is provided with fixture block 20, the inside block meshing of fixture block 20 has supporting shoe 21, and one side of supporting shoe 21 is connected with the inside of protection casing 22, the top structure of protection casing 22 is the rectangle, and the top of protection casing 22 is the fretwork form, the inside triangle-shaped structure that is in the below of protection casing 22, the effect that sets up like this is through setting into the triangle-shaped structure with protection casing 22 bottom, just so no longer need piece together triangle-shaped instruction arrow shape with the plank, thereby there is the spraying efficiency of the triangle-shaped instruction arrow of being convenient for.

The upper surface central line symmetry of protection casing 22 is provided with supports telescopic link 23, the top and the west of supporting telescopic link 23 respectively with automobile body 1 the bottom and the protection casing 22 between be welded fastening connection, and protection casing 22 is swing joint between through supporting shoe 21 and fixture block 20, protection casing 22 passes through electric telescopic handle 12 and constitutes linkage elevation structure between transverse strut 15 and the supporting shoe 21, the effect that sets up like this is through the setting of supporting telescopic link 23, be convenient for fix the both ends of protection casing 22, the block through supporting shoe 21 and fixture block 20 is connected simultaneously, thereby be convenient for protection casing 22 to follow electric telescopic handle 12 descends and the ground laminating, thereby paint leaks when avoiding spraying the triangle arrow again.

Supporting seats 24 are symmetrically installed below the bottom of the right side of the vehicle body 1, a rotating shaft 25 is transversely arranged below the supporting seats 24, wheels 26 are symmetrically arranged at two ends of the rotating shaft 25, a synchronizing gear 27 is installed in the middle of the rotating shaft 25, a differential gear 28 is meshed with an upper tooth groove of the synchronizing gear 27, the width of each supporting seat 24 is consistent with the width of the vehicle body 1, the differential gear 28 is connected with the bottom of the supporting seat 24 and is on the same horizontal line with the synchronizing gear 27, the diameter of the differential gear 28 is small and is equal to that of the synchronizing gear 27, the rotating wheels 26 rotate to drive the synchronizing gear 27 to rotate together, the rotating speed of the differential gear 28 is convenient to drive, and the rotating force of the rotary broom 30 is increased.

And the bevel gear 29 is engaged and connected with the left lower part of the differential gear 28, the rotary broom 30 is installed below the bevel gear 29, the shape of the rotary broom 30 is circular, the rotary broom 30 is connected with the differential gear 28 through the bevel gear 29, the rotary broom 30 drives the synchronous gear 27 and the differential gear 28 to form a linkage rotary mechanism through the rotation of the wheels 26, the rotary broom 30 is arranged to increase the rotary force of the rotary broom 30 through the differential gear 28, so that the rotary broom 30 can clean the garbage and the leaves on the scribing track conveniently, and the scribing and the painting on the road are convenient.

The working principle is as follows: for the automatic spraying and line marking machine which is convenient for road surface cleaning and has the rotary function, firstly, paint needed for line marking is guided into the charging barrel 11, when the coating in the charging barrel 11 is modulated, the machine can be pushed to move, the machine can complete direction adjustment by moving the handlebar 2 left and right through the arrangement of the universal wheel 5 arranged at the bottom of the vehicle body 1, when the road line marking is needed to be linearly sprayed, the spray gun switch 3 is pressed down to control the spraying machine through the connecting wire 4, meanwhile, the motor 7 and the air compressor 8 operate simultaneously, so that the spraying machine 9 sucks the paint in the charging barrel 11 into the spraying machine 9 through the material suction pipe 10, then the paint enters the nozzle 18 through the material inlet pipe 19 to spray the road surface, the broom 30 is arranged at the bottom in front of the vehicle body 1 while the spraying device advances, the synchronous gear 27 arranged on the rotating shaft 25 is driven to synchronously through the rotation of the wheels 26, the differential gear 28 engaged with the tooth grooves of the synchronous gear 27 is accelerated in drilling speed, so that the rotary broom 30 connected to the differential gear 28 through the bevel gear 29 is accelerated in rotation speed, thereby cleaning the fallen leaves on the scribing line.

When a triangle indication arrow needs to be sprayed, the controller 13 and the protective cover 22 are driven to descend by the electric telescopic rod 12 arranged at the bottom of the coating machine 9, when the protection mask 22 is attached to the ground, the controller 13 starts to control the rotation rod 14 to rotate inside the protection mask 22, while the nozzle 18 provided on the transverse strut 15 slides along the slide slot 17 of the transverse strut 15, thereby rotating to spray on the ground, and through the triangular shape arranged at the bottom of the protective cover 22, the completeness of the paint spraying is convenient, when the electric telescopic rod 12 starts to shrink after spraying is finished, the protective cover 22 rises the controller 13 to control the rotating rod 14 to rotate reversely so that the nozzle 18 is reset by the spring 16 arranged inside the transverse strut 15, after the spraying contact, the spray gun switch 3 is released, so that the spraying machine 9 stops working, and the whole using process of the automatic spraying line marking machine which is convenient for road surface cleaning and has a rotatable function is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic spraying line printer convenient to road surface is clean and have rotatable function, includes automobile body (1), its characterized in that: handlebar (2) is installed on the left side of the upper surface of vehicle body (1), and the below of the left side handlebar of handlebar (2) is provided with spray gun switch (3), the right side back connection of spray gun switch (3) has connecting wire (4), the left side bottom central line symmetry of vehicle body (1) is provided with universal wheel (5), and scale (6) are installed in the outside of universal wheel (5), the top surface left side of vehicle body (1) is provided with engine (7), and a side surface of engine (7) is provided with air compressor (8), the right side surface mounting of engine (7) has flush coater (9), and the right side surface middle part of flush coater (9) is connected with inhales material pipe (10), the tip of the top of inhaling material pipe (10) is connected with the right side bottom of feed cylinder (11), and the bottom of flush coater (9) is connected with electric telescopic handle (12), a controller (13) is installed on the lower surface of the electric telescopic rod (12), a rotary rod (14) is connected to the middle of the lower surface of the controller (13), a transverse supporting rod (15) is installed on the lower portion of the rotary rod (14) in a clamping mode, a spring (16) is arranged inside the transverse supporting rod (15), sliding grooves (17) are symmetrically formed in the upper surface and the lower surface of the transverse supporting rod (15), a nozzle (18) is transversely arranged inside the sliding grooves (17), a feeding pipe (19) is connected to the middle of the upper surface of the nozzle (18), a clamping block (20) is arranged at the end portion of the right side of the transverse supporting rod (15), a supporting block (21) is engaged with the inside of the clamping block (20), one side of the supporting block (21) is connected with the inside of a protective cover (22), and supporting telescopic rods (23) are symmetrically arranged on the center line of, supporting seat (24) are installed to the right side bottom below symmetry of automobile body (1), and the below of supporting seat (24) crosses and is provided with pivot (25), the both ends symmetry of pivot (25) is provided with wheel (26), and the mid-mounting of pivot (25) has synchronizing gear (27), the last tooth's socket meshing of synchronizing gear (27) is connected with differential gear (28), and the left side below meshing of differential gear (28) is connected with helical gear (29), rotatory broom (30) are installed to the below of helical gear (29).

2. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: be connected between one side tip of connecting wire (4) and flush coater (9), and handlebar (2) the molding is similar to bicycle tap handlebar, the structure of spray gun switch (3) is similar with bicycle hand brake.

3. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: electric telescopic rod (12) include step motor (1201), synchronizing wheel (1202), hold-in range (1203), follow driving wheel (1204), driven screw (1205), ball screw (1206) and push rod (1207), and install synchronizing wheel (1202) above the output of step motor (1201), hold-in range (1203) are installed to the below of synchronizing wheel (1202), and the left side of hold-in range (1203) is provided with from driving wheel (1204), the inside crossing in shaft hole from driving wheel (1204) is provided with driven screw (1205), and the below of driven screw (1205) is connected with ball screw (1206), the below of ball screw (1206) is connected with push rod (1207).

4. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 3, wherein: the driven wheel (1204) is connected with the synchronous wheel (1202) and the stepping motor (1201) through a synchronous belt (1203) in a linear mode, the driven wheel (1204) is fixedly connected with the driven screw rod (1205) in a welding mode, and the ball screw rod (1206) is of a movable structure through the synchronous belt (1203) and the stepping motor (1201).

5. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: the two ends of the spring (16) are fixedly connected with the inner part of the transverse supporting rod (15) and the left side surface of the nozzle (18) respectively, the upper part of the feeding pipe (19) is connected with the bottom of the spraying machine (9), and the length of the feeding pipe (19) is the circumference of the transverse supporting rod (15) which rotates circularly by taking the rotating rod (14) as an axis.

6. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: the structure of the upper portion of the protection cover (22) is rectangular, the upper portion of the protection cover (22) is hollow, and the interior of the lower portion of the protection cover (22) is of a triangular structure.

7. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: the upper part and the west of the supporting telescopic rod (23) are fixedly connected with the bottom of the vehicle body (1) and the protective cover (22) respectively in a welding mode, the protective cover (22) is movably connected with the clamping block (20) through the supporting block (21), and the protective cover (22) forms a linkage lifting structure with the supporting block (21) through the electric telescopic rod (12) and the transverse supporting rod (15).

8. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: the width of the supporting seat (24) is consistent with the width of the vehicle body (1), the differential gear (28) is connected with the bottom of the supporting seat (24) and is on the same horizontal line with the synchronous gear (27), and the diameter of the differential gear (28) is smaller than that of the synchronous gear (27).

9. The automatic spraying line marking machine convenient for road surface cleaning and having a rotatable function as claimed in claim 1, wherein: the rotary broom (30) is circular, the rotary broom (30) is connected with the differential gear (28) through the bevel gear (29), and the rotary broom (30) drives the synchronous gear (27) and the differential gear (28) to form a linkage rotary mechanism through rotation of the wheels (26).