CN112127247A

CN112127247A - Marking grinding device for road construction

Info

Publication number: CN112127247A
Application number: CN202011067571.9A
Authority: CN
Inventors: 翟文静
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-06
Filing date: 2020-10-06
Publication date: 2020-12-25

Abstract

The invention relates to the technical field of road construction, in particular to a marking line polishing device for road construction, which comprises a sweep, a polishing device, a dust falling device and a cleaning device, wherein a push rod is welded at one end of the sweep, a groove is formed in the sweep, a protective cover is arranged on the top of the sweep, the polishing device comprises a lifting assembly and a rotating assembly, the lifting assembly is installed in the groove, the rotating assembly is arranged in the groove and clamped on the lifting assembly, the dust falling device is arranged in the protective cover and installed on the top of the sweep, and the cleaning device is installed on the top of the sweep. According to the invention, through the mutual matching operation among the devices, the marking lines with different thicknesses can be polished, the generation of dust can be reduced, the construction environment is improved, the harm of the dust to constructors is effectively avoided, the dust after the marking lines are polished can be treated, the workload of subsequent construction is reduced, and the construction cost is reduced.

Description

Marking grinding device for road construction

Technical Field

The invention relates to the technical field of road construction, in particular to a marking polishing device for road construction.

Background

The road marking is divided into: hot melt marking, normal temperature cold lacquer marking, colored anti-skidding marking, vibration anti-skidding reflection of light marking and preforming marking. The hot-melt marked line is the most widely applied marked line on the road marked line in China at present. Its construction time is short, and its wear resistance is high, and cost is low.

For example, patent publication No. CN108385490A relates to a marking line grinding device for municipal road construction, which comprises a vehicle plate; a push rod is welded on the left side wall of the sweep in an inclined mode; the adjusting threaded rod is downwards connected into the interior of the vehicle plate through threads, and the lower end of the adjusting threaded rod is connected into the connecting block; a polishing motor is welded on the lower surface of the connecting block; the polishing motor is embedded in the bearing plate and is arranged in the transmission cavity; the transmission cavity is arranged in the left side wall of the vehicle plate, and the left side and the right side of the transmission cavity are provided with connecting sliding chutes; supporting plates are fixedly welded on the left side and the right side of the upper surface of the protective box; the supporting plate is upwards inserted into the transmission cavity, and the upper end of the supporting plate is welded on the bearing plate and arranged on two sides of the polishing motor; the polishing disc is cylindrical and is arranged between the rubber rings; the gas pipe penetrates through the vehicle plate upwards and is connected into the hot air blower; the cleaning device is simple in structure, simple and convenient to use and operate, good in cleaning effect on the marked lines on the municipal road and high in practicability.

However, the above-mentioned devices have problems in use: the device is poor to the marking effect of polishing, can produce the dust when polishing the marking, influences the construction environment, and the dust can cause certain harm to constructor moreover to and can not in time handle the dust of polishing, increased the work load of follow-up construction, and construction cost.

Disclosure of Invention

The invention aims to solve the technical problem of providing a marking polishing device for road construction, and aims to solve the technical problem in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a marking grinding device for road construction, includes sweep, grinding device, dust device and cleaning device, the welding has the push rod on a tip of sweep, be equipped with the recess on the sweep, be equipped with the safety cover on the sweep top, grinding device includes lifting unit and rotating assembly, lifting unit installs in the recess and the vertical downward setting of lift end, rotating assembly sets up in the recess and the card is established on lifting unit, dust device sets up in the safety cover and installs on the top of sweep, cleaning device installs on the sweep top and is located outside the safety cover.

Furthermore, the lifting component comprises a bearing seat, a vertical plate, a lifting motor, a first bevel gear, a second bevel gear, a limiting sleeve seat, a threaded rod, a lifting sleeve rod and a polishing disk, the bearing seat is clamped in a groove on the vehicle plate, the vertical plate is arranged on the bearing seat, the lifting motor is arranged on one side wall of the vertical plate, a main shaft of the lifting motor penetrates through the vertical plate and extends out of the other side wall, the first bevel gear is arranged on a main shaft of the lifting motor, the second bevel gear is arranged on the bearing seat and is meshed with the first bevel gear, the limiting sleeve seat is arranged at the bottom of the bearing seat, the threaded rod is arranged on the second bevel gear and vertically and downwards penetrates through the bearing seat, the threaded rod is in rotating fit with the bearing seat, the lifting sleeve rod penetrates through the limiting sleeve seat and is arranged on the threaded rod and is in sliding fit with the limiting sleeve seat, and, the polishing disc is arranged at the bottom of the lifting sleeve rod.

Further, rotating assembly includes rotating electrical machines, first belt pulley, second belt pulley, belt and two telescopic links, rotating electrical machines installs on the top of sweep and the vertical sweep that runs through downwards of rotating electrical machines's main shaft, first belt pulley is installed on rotating electrical machines's main shaft and is blocked and establish in the recess, second belt pulley card is established on bearing the weight of the seat, the both ends of belt are established respectively on first belt pulley and second belt pulley, two the one end of telescopic link is installed respectively on the second belt pulley, two the other end of telescopic link is installed respectively on the mill of beating.

Further, dust device includes water tank, inlet tube, suction pump, delivery pipe, distributive pipe, two supporting shoes and a plurality of shower nozzle, the water tank sets up in the protective cover and installs on the sweep top, the inlet tube is installed on the top of water tank and is run through the outside extension of protective cover, be equipped with the filter screen in the inlet tube, the suction pump is installed at the side of water tank and is linked together with the water tank, the delivery pipe is installed on the suction pump and is run through sweep downwardly extending, two the supporting shoe is installed in the sweep bottom, the distributive pipe is installed in the bottom of two supporting shoes and is linked together with the delivery pipe, and is a plurality of the shower nozzle is the slope and installs on the distributive pipe and just to the dish of polishing.

Further, the cleaning device comprises a frame, a driving motor, a dust suction port, a dust collector, two rotating shafts, two cleaning brushes and three gears, the frame is arranged in the protective cover and is arranged on the top of the vehicle board, the driving motor is arranged on the frame, a main shaft of the driving motor vertically penetrates through the frame downwards, the three gears are arranged on the same horizontal plane and are engaged with each other between two adjacent gears, one of the gears is arranged on a main shaft of the driving motor, the two rotating shafts are respectively arranged at the bottoms of the other two gears and respectively penetrate through the turning plate to extend downwards, the two cleaning brushes are respectively arranged at the bottoms of the two rotating shafts and are positioned beside the polishing disc, the dust catcher is installed on the top of sweep and is located the safety cover side, the dust absorption mouth is the slope and installs in the sweep bottom and be linked together with the dust catcher.

Furthermore, four idler wheels which are symmetrical in pairs are arranged at the bottom of the turning plate, two of the idler wheels are rotatably arranged, symmetrical baffle plates are arranged at the bottom of the turning plate, and the two baffle plates are respectively positioned on the outer sides of the idler wheels.

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

firstly, the device can polish the marked lines with different thicknesses through the mutual matching operation among the devices, reduces the generation of dust in the polishing process, improves the construction environment, effectively avoids the harm of the dust to constructors, treats the dust after the marked lines are polished, facilitates subsequent construction, reduces the workload of the subsequent construction and reduces the construction cost.

Secondly, when the marking lines on the road are polished, construction workers push a push rod to enable a polishing disc to be over against the marking lines on the road, a first bevel gear is driven to rotate through the work of a lifting motor, a second bevel gear can be driven to rotate, a threaded rod is driven to rotate, meanwhile, the threaded rod rotates to drive a lifting sleeve rod in a limiting sleeve seat to move downwards, the polishing disc is driven to move downwards, a first belt pulley is driven to rotate through the work of a rotating motor, belts are respectively sleeved on the first belt pulley and the second belt pulley, the second belt pulley is driven to rotate, two telescopic rods are driven to rotate, the polishing disc can be driven to rotate, the polishing of the marking lines on the road is achieved, the polishing disc can automatically lift, the marking lines with different thicknesses can be polished, and the applicability of the device is improved.

Thirdly, when the polishing disc polishes the marked line, water in the water tank is pumped into the water feeding pipe through the water suction pump and flows into the water distribution pipe to be discharged into the plurality of spray heads to be sprayed out in a spraying mode, so that the marked line is in a wet state, the polishing disc can polish the marked line easily, polishing efficiency is improved, dust is reduced in the polishing process, construction environment is improved, and harm to constructors caused by the dust is avoided effectively.

Fourthly, after the marked line is polished, the driving motor works to drive the gear arranged on the main shaft of the driving motor to rotate, the other two gears can be driven to rotate, the two rotating shafts can be driven to rotate, the two cleaning brushes are driven to clean the polished marked line, then the polished marked line is adsorbed from the dust absorption port through the work of the dust collector, the dust after the marked line is polished can be automatically treated, the follow-up construction is convenient, the workload of the follow-up construction is reduced, and the construction cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a partial perspective view of the present invention;

FIG. 4 is a schematic perspective view of the lifting assembly and the rotating assembly of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

fig. 6 is a schematic perspective view of the cleaning device of the present invention.

The reference numbers in the figures are: the cleaning device comprises a vehicle plate 1, a push rod 10, a protective cover 11, a roller 12, a baffle 13, a grinding device 2, a lifting assembly 5, a bearing seat 50, a vertical plate 51, a lifting motor 52, a first bevel gear 53, a second bevel gear 54, a limiting sleeve seat 55, a threaded rod 56, a lifting sleeve 57, a grinding disc 58, a rotating assembly 6, a rotating motor 60, a first belt pulley 61, a second belt pulley 62, a belt 63, an expansion rod 64, a dust falling device 3, a water tank 30, a water inlet pipe 31, a water suction pump 32, a water feeding pipe 33, a water dividing pipe 34, a supporting block 35, a sprayer 36, a filter screen 37, a cleaning device 4, a frame 40, a driving motor 41, a dust suction opening 42, a dust suction machine 43, a rotating shaft 44, a cleaning brush.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 6, a road construction marking line polishing device comprises a sweep 1, a polishing device 2, a dust-settling device 3 and a cleaning device 4, wherein a push rod 10 is welded at one end of the sweep 1, a groove is arranged on the sweep 1, a protective cover 11 is arranged at the top of the sweep 1, the polishing device 2 comprises a lifting component 5 and a rotating component 6, the lifting component 5 is installed in the groove, the lifting end is vertically arranged downwards, the rotating component 6 is arranged in the groove and clamped on the lifting component 5, the dust-settling device 3 is arranged in the protective cover 11 and installed at the top of the sweep 1, the cleaning device 4 is installed at the top of the sweep 1 and positioned outside the protective cover 11, and the dust-settling device 3 is arranged to reduce dust generated during marking line polishing, improve construction environment and avoid harm of dust to constructors, the cleaning device 4 who sets up can handle the dust after the marking is polished, makes things convenient for follow-up construction, reduces the work load of follow-up construction moreover to and construction cost has been reduced.

Specifically, the lifting assembly 5 comprises a bearing seat 50, a vertical plate 51, a lifting motor 52, a first bevel gear 53, a second bevel gear 54, a limiting sleeve seat 55, a threaded rod 56, a lifting sleeve rod 57 and a grinding disc 58, the bearing seat 50 is clamped in a groove on the vehicle board 1, the vertical plate 51 is mounted on the bearing seat 50, the lifting motor 52 is mounted on one side wall of the vertical plate 51, a main shaft of the lifting motor 52 penetrates through the vertical plate 51 and extends out of the other side wall, the first bevel gear 53 is mounted on the main shaft of the lifting motor 52, the second bevel gear 54 is mounted on the bearing seat 50, the second bevel gear 54 is meshed with the first bevel gear 53, the limiting sleeve seat 55 is mounted at the bottom of the bearing seat 50, the threaded rod 56 is mounted on the second bevel gear 54 and vertically and downwards penetrates through the bearing seat 50, and the threaded rod 56 is in threaded rotation, the lifting sleeve rod 57 penetrates through the limiting sleeve seat 55 and is arranged on the threaded rod 56 and is in sliding fit with the limiting sleeve seat 55, the lifting sleeve rod 57 is in threaded fit with the lifting threaded rod 56, the polishing disc 58 is arranged at the bottom of the lifting sleeve rod 57, when the marked line on the road needs to be polished, the construction manual pushing push rod 10 makes the polishing disc 58 face the marked line on the road, the first bevel gear 53 is driven to rotate by the operation of the lifting motor 52, the second bevel gear 54 is driven to rotate, the second bevel gear 54 rotates to drive the threaded rod 56 to rotate, at the same time, the threaded rod 56 rotates to drive the lifting sleeve rod 57 in the limit sleeve seat 55 to move downwards, thereby drive the downward motion of mill 58 for mill 58 laminates the marking, convenient follow-up polishing, mill 58 can rise automatically, can both polish to the marking of different thickness, has improved the suitability of device.

Specifically, the rotating assembly 6 includes a rotating electrical machine 60, a first belt pulley 61, a second belt pulley 62, a belt 63 and two telescopic rods 64, the rotating electrical machine 60 is installed on the top of the vehicle body 1 and the spindle of the rotating electrical machine 60 vertically penetrates the vehicle body 1 downwards, the first belt pulley 61 is installed on the spindle of the rotating electrical machine 60 and clamped in the groove, the second belt pulley 62 is clamped on the bearing seat 50, two ends of the belt 63 are respectively sleeved on the first belt pulley 61 and the second belt pulley 62, one end of each of the two telescopic rods 64 is respectively installed on the second belt pulley 62, the other end of each of the two telescopic rods 64 is respectively installed on the polishing disc 58, when the polishing disc 58 moves to the marked line, the first belt pulley 61 is driven to rotate through the work of the rotating electrical machine 60 because the belt 63 is respectively sleeved on the first belt pulley 61 and the second belt pulley 62, therefore, the second belt pulley 62 is driven to rotate, and the two telescopic rods 64 are driven to rotate, so that the polishing disc 58 is driven to rotate, and the polishing of the marked lines on the road is realized.

Specifically, dust device 3 includes water tank 30, inlet tube 31, suction pump 32, delivery pipe 33, distributive pipe 34, two supporting shoes 35 and a plurality of shower nozzle 36, water tank 30 sets up in protection cover 11 and installs on sweep 1 top, inlet tube 31 is installed on water tank 30's top and is run through protection cover 11 and outwards extend, conveniently adds water to water tank 30, be equipped with filter screen 37 in inlet tube 31, prevent that the residue from getting into water tank 30 and stopping up water tank 30, suction pump 32 installs the side at water tank 30 and is linked together with water tank 30, delivery pipe 33 is installed on suction pump 32 and is run through sweep 1 and extends downwards, two support block 35 installs in sweep 1 bottom, distributive pipe 34 installs in the bottom of two supporting shoes 35 and is linked together with delivery pipe 33, a plurality of shower nozzle 36 is the slope and installs on distributive pipe 34 and just to polishing disk 58, when polishing dish 58 was polished the marking, through in suction pump 32 takes out water to delivery pipe 33 in with water tank 30, flow into in distributive pipe 34 and arrange to a plurality of shower nozzles 36 in with the form blowout of spraying for marking department is moist state, makes polishing dish 58 polish it easily, improves the efficiency of polishing, and the in-process of polishing has reduced the production of dust, improves the construction environment, avoids the harm that the dust caused constructor effectively.

Specifically, cleaning device 4 includes frame 40, driving motor 41, dust absorption mouth 42, dust catcher 43, two rotation axes 44, two brush cleaner 45 and three gear 46, frame 40 sets up in protecting cover 11 and installs on the top of sweep 1, driving motor 41 installs on frame 40 and driving motor 41's the vertical frame 40 that runs through downwards of main shaft sets up, three gear 46 is same horizontal plane setting and meshes mutually between two adjacent gear 46, one of them gear 46 installs on driving motor 41's main shaft, two rotation axes 44 install respectively in the bottom of two other gear 46 and two rotation axes 44 run through sweep 1 respectively and extend downwards, two brush cleaner 45 installs respectively in the bottom of two rotation axes 44 and is located the side of polishing dish 58, dust catcher 43 installs on the top of sweep 1 and is located the protecting cover 11 side, dust absorption mouth 42 is the slope and installs in sweep 1 bottom and be linked together with dust catcher 43, after polishing the marking, it is rotatory to drive gear 46 installed at driving motor 41's main epaxial through driving motor 41 work, can drive two other gears 46 rotatoryly, then can drive two rotation axis 44 rotatoryly, thereby drive two cleaning brush 45 and clean the processing to the marking of polishing, then the marking of polishing will be followed dust absorption mouth 42 through dust catcher 43 work and adsorbed, can handle the dust after the marking is polished automatically, convenient follow-up construction, and reduce the work load of follow-up construction, and construction cost has been reduced.

Specifically, 1 bottom of sweep is equipped with four two bisymmetry's gyro wheel 12, and wherein two gyro wheels 12 are rotatable setting, and the convenient position of adjusting the mill 58 improves the effect of polishing, 1 bottom of sweep is equipped with the baffle 13 of symmetry, two baffle 13 is located the gyro wheel 12 outside respectively, and the dust that can reduce when polishing gives off in other positions of road to and the convenient cleaning of follow-up cleaning device 4 to the dust.

The working principle of the invention is as follows: when the marked line on the road needs to be polished, the construction worker pushes the push rod 10 to enable the polishing disc 58 to be opposite to the marked line on the road, the first bevel gear 53 is driven to rotate through the work of the lifting motor 52, the second bevel gear 54 is driven to rotate, the second bevel gear 54 rotates to drive the threaded rod 56 to rotate, meanwhile, the threaded rod 56 rotates to drive the lifting sleeve rod 57 in the limiting sleeve seat 55 to move downwards, so that the polishing disc 58 is driven to move downwards, the first belt pulley 61 is driven to rotate through the work of the rotating motor 60, the second belt pulley 62 is driven to rotate because the belts 63 are respectively sleeved on the first belt pulley 61 and the second belt pulley 62, and the two telescopic rods 64 are driven to rotate, so that the polishing disc 58 is driven to rotate, the marked line on the road is polished, water in the water tank 30 is pumped into the water delivery pipe 33 through the water pump 32 while being polished, and flows into the water distribution pipe 34 to be discharged into the, make marking department be moist state, make the mill 58 polish it easily, improve the efficiency of polishing, and the in-process of polishing has reduced the production of dust, improve the construction environment, avoid the harm that the dust caused constructor effectively, after polishing the marking, it is rotatory to drive gear 46 installed at driving motor 41's main epaxial through driving motor 41 work, can drive two other gears 46 rotatoryly, then can drive two rotation axes 44 rotatoryly, thereby drive two cleaning brush 45 and clean the processing to the marking of polishing, then adsorb the marking of polishing from dust absorption mouth 42 through dust catcher 43 work, can handle the dust of marking after polishing automatically, make things convenient for follow-up construction, and reduce the work load of follow-up construction, and construction cost has been reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a marking grinding device for road construction which characterized in that: including sweep (1), grinding device (2), dust device (3) and cleaning device (4), the welding has push rod (10) on a tip of sweep (1), be equipped with the recess on sweep (1), be equipped with safety cover (11) on sweep (1) top, grinding device (2) are including lifting unit (5) and rotating assembly (6), lifting unit (5) are installed in the recess and the vertical downward setting of lift end, rotating assembly (6) set up in the recess and the card is established on lifting unit (5), dust device (3) set up in safety cover (11) and install on the top of sweep (1), cleaning device (4) are installed on sweep (1) top and are located outside safety cover (11).

2. The marking grinding device for road construction according to claim 1, characterized in that: the lifting assembly (5) comprises a bearing seat (50), a vertical plate (51), a lifting motor (52), a first bevel gear (53), a second bevel gear (54), a limiting sleeve seat (55), a threaded rod (56), a lifting sleeve rod (57) and a grinding disc (58), wherein the bearing seat (50) is clamped in a groove on the vehicle plate (1), the vertical plate (51) is installed on the bearing seat (50), the lifting motor (52) is installed on one side wall of the vertical plate (51), a main shaft of the lifting motor (52) penetrates through the vertical plate (51) to extend out of the other side wall, the first bevel gear (53) is installed on a main shaft of the lifting motor (52), the second bevel gear (54) is installed on the bearing seat (50), the second bevel gear (54) is meshed with the first bevel gear (53), the limiting sleeve seat (55) is installed at the bottom of the bearing seat (50), the threaded rod (56) is installed on the second bevel gear (54) and penetrates through the bearing seat (50) to vertically and downwards Put, threaded rod (56) and the screw thread normal running fit who bears seat (50), lift loop bar (57) run through spacing sleeve seat (55) and establish on threaded rod (56) and with spacing sleeve seat (55) sliding fit, lift loop bar (57) and lift threaded rod (56) screw-thread fit, the bottom at lift loop bar (57) is installed in polishing dish (58).

3. The marking grinding device for road construction according to claim 2, characterized in that: rotating assembly (6) includes rotating electrical machines (60), first belt pulley (61), second belt pulley (62), belt (63) and two telescopic link (64), rotating electrical machines (60) are installed on the top of sweep (1) and the vertical downward sweep (1) that runs through of main shaft of rotating electrical machines (60), first belt pulley (61) is installed on the main shaft of rotating electrical machines (60) and the card is established in the recess, second belt pulley (62) card is established on bearing seat (50), the both ends of belt (63) are established respectively on first belt pulley (61) and second belt pulley (62), two the one end of telescopic link (64) is installed respectively on second belt pulley (62), two the other end of telescopic link (64) is installed respectively on beating mill (58).

4. The marking grinding device for road construction according to claim 2, characterized in that: dust device (3) includes water tank (30), inlet tube (31), suction pump (32), flow pipe (33), distributive pipe (34), two supporting shoes (35) and a plurality of shower nozzle (36), water tank (30) set up in protective cover (11) and install on sweep (1) top, inlet tube (31) are installed on the top of water tank (30) and are run through protective cover (11) and outwards extend, be equipped with filter screen (37) in inlet tube (31), suction pump (32) are installed at the side of water tank (30) and are linked together with water tank (30), flow pipe (33) are installed on suction pump (32) and are run through sweep (1) downwardly extending, two supporting shoes (35) are installed in sweep (1) bottom, distributive pipe (34) are installed in the bottom of two supporting shoes (35) and are linked together with flow pipe (33), the plurality of spray heads (36) are obliquely arranged on the water distribution pipe (34) and are opposite to the polishing disc (58).

5. The marking grinding device for road construction according to claim 2, characterized in that: the cleaning device (4) comprises a frame (40), a driving motor (41), a dust suction port (42), a dust collector (43), two rotating shafts (44), two cleaning brushes (45) and three gears (46), wherein the frame (40) is arranged in a protective cover (11) and is arranged on the top of the vehicle plate (1), the driving motor (41) is arranged on the frame (40) and a spindle of the driving motor (41) vertically penetrates through the frame (40) downwards, the three gears (46) are arranged on the same horizontal plane and are meshed with each other between two adjacent gears (46), one gear (46) is arranged on the spindle of the driving motor (41), the two rotating shafts (44) are respectively arranged at the bottoms of the other two gears (46) and the two rotating shafts (44) respectively penetrate through the vehicle plate (1) to extend downwards, the two cleaning brushes (45) are respectively arranged at the bottoms of the two rotating shafts (44) and are positioned beside the polishing disc (58), dust catcher (43) are installed on the top of sweep (1) and are located safety cover (11) side, dust absorption mouth (42) are the slope and install sweep (1) bottom and be linked together with dust catcher (43).

6. The marking grinding device for road construction according to claim 1, characterized in that: the bottom of the sweep (1) is provided with four rollers (12) which are symmetrical in pairs, two of the rollers (12) are rotatably arranged, the bottom of the sweep (1) is provided with symmetrical baffles (13), and the baffles (13) are respectively positioned on the outer sides of the rollers (12).