A road construction marking spraying device

Abstract

The present invention relates to the technical field of road construction, and particularly relates to a marking spraying device for road construction, which includes a vehicle frame. A push handle is fixedly arranged on the side wall of the vehicle frame. A storage tank is fixedly installed on the upper surface of the vehicle frame. A mounting plate is fixedly installed on the outer wall of one side of the vehicle frame, and a first telescopic cylinder is fixedly installed through the outer wall of the mounting plate. The telescopic end of the first telescopic cylinder is fixedly installed with a lifting plate, and a spray head is fixedly installed at the end of the lifting plate. A limiting rod is fixedly installed on the upper surface of the lifting plate, and the limiting rod penetrates through the mounting plate. A liquid pump is fixedly installed on the outer wall of the storage tank. The present invention can flexibly adjust the width of the sprayed marking. At the same time, the moving path of the vehicle frame can be assisted to align with the old marking through the positioning unit. When new markings need to be planned on a new road, the vehicle frame can be driven to move in a straight line by means of the traction unit to ensure that the newly sprayed markings are straight, and the use effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, and in particular, to a marking spraying device for road construction. Background Art

[0002] With the acceleration of the urbanization process and the continuous development of road traffic construction, the scale and frequency of road construction are increasing day by day. During road construction, the spraying of road markings plays a crucial role in ensuring traffic safety and regulating traffic order. Accurate, clear and beautiful road markings can guide the correct passage of vehicles and pedestrians, and effectively reduce the probability of traffic accidents.

[0003] At present, many problems have emerged in the existing road construction marking spraying devices in practical applications. In terms of adjusting the marking width, the adjustment methods of traditional devices are often cumbersome. Some devices need to manually replace nozzles of different specifications or adjust complex mechanical structures to change the marking width. In addition, due to the inability to flexibly and accurately adjust the marking width according to actual construction requirements, the applicability of traditional devices is poor when facing different road scenarios and construction standards.

[0004] In addition, the cleanliness of the road surface has a direct impact on the adhesion effect of the paint. In actual construction, there are often various sundries and dust on the road surface. If not thoroughly cleaned before spraying, these sundries and dust will hinder the effective combination of the paint and the ground, reduce the adhesion of the marking, and shorten the service life of the marking. However, most of the existing marking spraying devices are not equipped with perfect cleaning and blowing functions, and cannot meet the requirements of high-quality spraying operations.

[0005] When planning new road markings, it is crucial to ensure that the newly sprayed markings are straight. Without effective traction means, it is difficult for operators to ensure that the vehicle frame always moves in a straight line with traditional marking spraying devices, resulting in curved and non-straight new markings, which affects the overall beauty of the road and the traffic guiding effect. Therefore, it is urgent to design a marking spraying device for road construction to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the defects existing in the prior art, and to propose a marking spraying device for road construction.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A road construction marking spraying device, including a vehicle frame, a push handle is fixedly arranged on the side wall of the vehicle frame, a storage tank is fixedly installed on the upper surface of the vehicle frame, a mounting plate is fixedly installed on the outer wall of one side of the vehicle frame, and a first telescopic cylinder is fixedly installed through the outer wall of the mounting plate. The telescopic end of the first telescopic cylinder is fixedly installed with a lifting plate, and a spray head is fixedly installed at the end of the lifting plate. A limiting rod is fixedly installed on the upper surface of the lifting plate, and the limiting rod penetrates through the mounting plate. A liquid pump is fixedly installed on the outer wall of the storage tank, and a guide pipe is connected to the liquid guiding end of the liquid pump in a communicating way. The end of the guide pipe is communicated with the spray head, and the liquid pumping end of the liquid pump is connected to the storage tank through a pumping pipe. The shape of the spray head is an isosceles trapezoid for spraying fan-shaped paint, and it further includes:

[0009] A positioning unit, which is arranged in the mounting plate and is used to assist the moving path of the vehicle frame to align with the old marking when the vehicle frame moves;

[0010] A traction unit, which is arranged in the vehicle frame and is used to traction the vehicle frame to move along a straight line to spray new markings;

[0011] A cleaning unit, which is arranged on one side of the vehicle frame and is used to remove sundries in front of the spray head;

[0012] A dust blowing unit, which is arranged on one side of the vehicle frame and is used to blow away the dust in front of the spray head.

[0013] As a further scheme of the present invention: the positioning unit includes a mounting opening opened on the outer wall of the mounting plate, and a second telescopic cylinder is fixedly arranged in the mounting opening. The telescopic end of the second telescopic cylinder is fixedly installed with a telescopic rod, and the telescopic rod penetrates through the mounting plate. Positioning rods are rotatably connected to positions near both sides of the end of the telescopic rod. A fixed rod is fixedly installed on the outer wall of the mounting plate, and a sleeve is rotatably connected to the end of the fixed rod. The positioning rod penetrates through the sleeve.

[0014] As a further scheme of the present invention: the traction unit includes a third telescopic cylinder and a mounting frame fixedly arranged in the vehicle frame. A counterweight block is movably installed in the mounting frame. The telescopic end of the third telescopic cylinder is fixedly connected to the upper surface of the mounting frame. A movable plate is fixedly installed on the outer wall of the third telescopic cylinder, and a lifting rod penetrating through the mounting frame is fixedly installed on the lower surface of the movable plate. A support plate is fixedly installed at the end of the lifting rod. A support groove is opened on the lower surface of the counterweight block, and the support plate is located in the support groove. A lifting groove communicated with the support groove is opened on the upper surface of the counterweight block, and the lifting rod is located in the lifting groove. A traction module is also arranged in the vehicle frame and is used to traction the vehicle frame to move towards the counterweight block when the counterweight block is fixed.

[0015] As a further solution of the present invention: The traction module includes a rotating shaft rotatably arranged in the vehicle frame. A driving motor is fixedly installed on the outer wall of the vehicle frame, and the driving end of the driving motor is connected to the rotating shaft. A roller is fixedly installed on the outer wall of the rotating shaft, and a traction rope is wound around the outside of the roller. The end of the traction rope is connected to a tensioning assembly, and the tensioning assembly is rotatably connected to the outer wall of the counterweight block.

[0016] As a further solution of the present invention: The tensioning assembly includes a tensioning cylinder. One end of the tensioning cylinder is movably provided with a connecting rod through it, and the end of the traction rope is connected to the end of the connecting rod. A displacement plate is fixedly installed at the end of the connecting rod located in the tensioning cylinder. Displacement openings are formed on both the upper and lower surfaces of the tensioning cylinder, and the displacement plate is movably arranged in the displacement openings. A first spring is sleeved on the outside of the connecting rod. One end of the first spring is connected to the outer wall of the displacement plate, and the other end of the first spring is connected to the inner wall of the tensioning cylinder. A rotating block is also fixedly installed at the end of the tensioning cylinder, and the rotating block is rotatably connected to the outer wall of the counterweight block. A distance sensor is also fixedly installed on the outer wall of the displacement plate for detecting the distance between the displacement plate and the inner wall of the tensioning cylinder.

[0017] As a further solution of the present invention: An installation groove is formed on the lower surface of the counterweight block, and a movable block is movably installed in the installation groove. A second spring is connected between the top inner wall of the installation groove and the upper surface of the movable block. A roller is fixedly installed on the lower surface of the movable block.

[0018] As a further solution of the present invention: The cleaning unit includes a side plate fixedly installed on one side outer wall of the vehicle frame. A bracket is fixedly installed on the outer wall of the side plate, and a vertical rod is fixedly installed in the bracket. A slider is sleeved on the outside of the vertical rod, and a third spring is sleeved on the outside of the vertical rod. One end of the third spring is connected to the bracket, and the other end of the third spring is connected to the upper surface of the slider. A push plate is fixedly installed on the outer wall of the slider. A baffle is rotatably connected to the upper surface of the push plate, and the baffle is located above the bracket. Equally spaced grooves are also formed on the lower surface of the push plate, and balls are rotatably connected in the grooves.

[0019] As a further solution of the present invention: The soot blowing unit includes an air box fixedly arranged below the vehicle frame. A blower is fixedly installed on the outer wall of the storage box, and an air duct is connected to the blowing end of the blower. The end of the air duct is communicated with the air box. Equally spaced jet pipes are communicated with the outer wall of the air box.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] A road construction marking spraying device provided by the present invention. When using this device to spray road markings, the paint can be stored in the storage tank first. Then, the paint in the storage tank can be pumped out by means of a liquid pump, and then guided into the nozzle along the material guiding pipe and sprayed downward. Since the paint sprayed by the nozzle is in a fan shape, the width of the marking produced by spraying is proportional to the distance between the nozzle and the ground. The height of the nozzle can be adjusted by driving the lifting plate up and down through the telescopic cylinder I, so as to achieve the purpose of adjusting the marking width, making the use more flexible. Then, the staff can hold the push handle and push the vehicle frame to move along the old marking remaining on the road surface to realize the spraying operation of the road marking. Further, during the spraying process, it can also be aligned with the old marking through the positioning unit, so as to assist the moving path of the vehicle frame to be aligned with the old marking, and the spraying effect is better. Furthermore, during the spraying process, the sundries in front of the nozzle can be swept away by the cleaning unit, and the dust in front of the nozzle can be blown away by the dust blowing unit, so that the paint can adhere to the ground more stably, further improving the spraying effect. When new markings need to be planned on a new road, the vehicle frame can also be driven to move in a straight line by means of the traction unit to ensure that the newly sprayed markings are straight, and the use effect is better. Description of the Drawings

[0022] Figure 1 The first perspective structural schematic diagram of a road construction marking spraying device provided by an embodiment of the present invention;

[0023] Figure 2 The second perspective structural schematic diagram of a road construction marking spraying device provided by an embodiment of the present invention;

[0024] Figure 3 The first perspective structural schematic diagram of the positioning unit in a road construction marking spraying device provided by an embodiment of the present invention;

[0025] Figure 4 The second perspective structural schematic diagram of the positioning unit in a road construction marking spraying device provided by an embodiment of the present invention;

[0026] Figure 5 The structural schematic diagram of the cleaning unit in a road construction marking spraying device provided by an embodiment of the present invention;

[0027] Figure 6 D The structural schematic diagram of the traction unit in a road construction marking spraying device provided by an embodiment of the present invention;

[0028] Figure 7 The structural schematic diagram of the counterweight block in a road construction marking spraying device provided by an embodiment of the present invention;

[0029] Figure 8Schematic cross-sectional structure diagram of a tensioning assembly in a road construction marking spraying device provided by an embodiment of the present invention;

[0030] Figure 9 Third perspective structure diagram of a road construction marking spraying device provided by an embodiment of the present invention.

[0031] In the figure: 101 - vehicle frame, 102 - push handle, 103 - material storage tank, 104 - mounting plate, 105 - liquid pump, 106 - suction pipe, 107 - guiding pipe, 108 - nozzle, 109 - lifting plate, 1{1}0 - telescopic cylinder one, 111 - limiting rod, 201 - mounting opening, 202 - telescopic cylinder two, 203 - telescopic rod, 204 - fixing rod, 205 - sleeve, 206 - positioning rod, 301 - mounting frame, 302 - counterweight, 303 - telescopic cylinder three, 304 - movable plate, 305 - lifting rod, 306 - supporting plate, 307 - supporting groove, 308 - lifting groove, 401 - driving motor, 402 - rotating shaft, 403 - roller, 404 - towing rope, 405 - tensioning cylinder, 406 - connecting rod, 407 - displacement opening, 408 - displacement plate, 409 - first spring, 410 - rotating block, 411 - distance sensor, 501 - mounting groove, 502 - second spring, 503 - movable block, 504 - roller, 601 - side plate, 602 - bracket, 603 - vertical rod, 604 - slider, 605 - pushing plate, 606 - third spring, 607 - retaining piece, 608 - ball, 701 - blower, 702 - air duct, 703 - air box, 704 - air spraying pipe. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Such as Figures 1-9As shown in the figure, a road marking spraying device provided by an embodiment of the present invention includes a vehicle frame 101. A push handle 102 is fixedly arranged on the side wall of the vehicle frame 101. A material storage tank 103 is fixedly installed on the upper surface of the vehicle frame 101. An installation plate 104 is fixedly installed on the outer wall of one side of the vehicle frame 101. A first telescopic cylinder 110 is fixedly installed through the outer wall of the installation plate 104. A lifting plate 109 is fixedly installed at the telescopic end of the first telescopic cylinder 110. A spray head 108 is fixedly installed at the end of the lifting plate 109. A limiting rod 111 is fixedly installed on the upper surface of the lifting plate 109. The limiting rod 111 penetrates through the installation plate 104. A liquid pump 105 is fixedly installed on the outer wall of the material storage tank 103. A guide pipe 107 is communicated with the liquid guiding end of the liquid pump 105. The end of the guide pipe 107 is communicated with the spray head 108. The liquid suction end of the liquid pump 105 is communicated with the material storage tank 103 through a suction pipe 106. The shape of the spray head 108 is an isosceles trapezoid, which is used to spray fan-shaped paint. It further includes: a positioning unit, which is arranged in the installation plate 104 and is used to assist the moving path of the vehicle frame 101 to align with the old marking when the vehicle frame 101 moves; a traction unit, which is arranged in the vehicle frame 101 and is used to traction the vehicle frame 101 to move along a straight line to spray a new marking; a cleaning unit, which is arranged on one side of the vehicle frame 101 and is used to remove the sundries in front of the spray head 108; a dust blowing unit, which is arranged on one side of the vehicle frame 101 and is used to blow the dust in front of the spray head 108.

[0034] When using this device to spray road markings, the paint can be stored in the material storage tank 103 first. Then, the liquid pump 105 can be used to pump out the paint in the material storage tank 103, and then it is introduced into the spray head 108 along the guide pipe 107 and sprayed downward. Since the paint sprayed by the spray head 108 is fan-shaped, the width of the marking produced by spraying is proportional to the distance between the spray head 108 and the ground. By driving the lifting plate 109 to move up and down through the first telescopic cylinder 110, the height of the spray head 108 can be adjusted, so as to achieve the purpose of adjusting the width of the marking, making the use more flexible. Then, the staff can hold the push handle 102 and push the vehicle frame 101 to move along the old marking remaining on the road surface to realize the spraying operation of the road marking. Further, during the spraying process, the positioning unit can also be used to align with the old marking, so as to assist the moving path of the vehicle frame 101 to align with the old marking, and the spraying effect is better. Furthermore, during the spraying process, the cleaning unit can also be used to sweep away the sundries in front of the spray head 108, and at the same time, the dust blowing unit can blow away the dust in front of the spray head 108, so that the paint can adhere to the ground more stably, further improving the spraying effect. When it is necessary to plan new markings on a new road, the traction unit can also be used to drive the vehicle frame 101 to move in a straight line to ensure that the newly sprayed markings are straight, and the use effect is better.

[0035] As an embodiment of the present invention, please refer toFigure 3 and Figure 4 , the positioning unit includes an installation opening 201 formed in the outer wall of the mounting plate 104, and a second telescopic cylinder 202 is fixedly arranged in the installation opening 201. A telescopic rod 203 is fixedly installed at the telescopic end of the second telescopic cylinder 202, and the telescopic rod 203 penetrates through the mounting plate 104. Positioning rods 206 are rotatably connected to both sides of the end of the telescopic rod 203. A fixing rod 204 is fixedly installed on the outer wall of the mounting plate 104, and a sleeve 205 is rotatably connected to the end of the fixing rod 204. The positioning rod 206 penetrates through the sleeve 205. When the paint sprayed by the nozzle 108 is aligned with the old marking, the telescopic cylinder 202 can be driven to drive the telescopic rod 203 to move. The telescopic rod 203 drives the positioning rod 206 to move in the sleeve 205, so that the end of the positioning rod 206 can just be aligned with the edge of the old marking. In this way, when the vehicle frame 101 moves, it is ensured that the ends of the two groups of positioning rods 206 all move along the edge of the old marking, and the sprayed paint can be accurately covered on the surface of the old marking, and the use effect is better.

[0036] As an embodiment of the present invention, please refer to Figure 6 , Figure 7 and Figure 8 , the traction unit includes a third telescopic cylinder 303 and a mounting frame 301 fixedly arranged in the vehicle frame 101. A counterweight 302 is movably installed in the mounting frame 301. The telescopic end of the third telescopic cylinder 303 is fixedly connected to the upper surface of the mounting frame 301. A movable plate 304 is fixedly installed on the outer wall of the third telescopic cylinder 303, and a lifting rod 305 penetrating through the mounting frame 301 is fixedly installed on the lower surface of the movable plate 304. A support plate 306 is fixedly installed at the end of the lifting rod 305. A support groove 307 is formed in the lower surface of the counterweight 302, and the support plate 306 is located in the support groove 307. A lifting groove 308 communicating with the support groove 307 is formed in the upper surface of the counterweight 302, and the lifting rod 305 is located in the lifting groove 308. A traction module is further arranged in the vehicle frame 101 for pulling the vehicle frame 101 in the direction of the counterweight 302 when the counterweight 302 is fixed. When the road marking spraying work needs to be carried out on the road surface where the marking has never been sprayed, the vehicle frame 101 can be first moved to the end point of the marking spraying, and the third telescopic cylinder 303 is contracted to drive the movable plate 304 to move downward. The movable plate 304 drives the support plate 306 to move downward through the lifting rod 305, so that the counterweight 302 contacts the ground and the lifting of the counterweight 302 is released. At the same time, a heavy object is placed on the surface of the counterweight 302. Usually, the staff directly sits on the surface of the counterweight 302 to increase the counterweight of the counterweight 302. Then the vehicle frame 101 can be moved to the starting point of the marking spraying. At this time, the vehicle frame 101 can be pulled in the direction of the counterweight 302 by the traction module while the spraying operation is carried out through the nozzle 108, and a straight road marking can be sprayed on the road surface, and the use effect is better.

[0037] As an embodiment of the present invention, please refer to Figure 6 , Figure 7 and Figure 8 , the traction module includes a rotating shaft 402 rotatably arranged in the vehicle frame 101. A driving motor 401 is fixedly installed on the outer wall of the vehicle frame 101, and the driving end of the driving motor 401 is connected to the rotating shaft 402. A roller 403 is fixedly installed on the outer wall of the rotating shaft 402, and a traction rope 404 is wound around the outside of the roller 403. The end of the traction rope 404 is connected to a tensioning assembly, and the tensioning assembly is rotatably connected to the outer wall of the counterweight 302. When the vehicle frame 101 moves away from the counterweight 302, the driving motor 401 can drive the roller 403 to rotate counterclockwise, so that the traction rope 404 is unwound. When the vehicle frame 101 moves to the starting point of the marking spraying, the driving motor 401 can drive the roller 403 to rotate clockwise, and the traction rope 404 can be wound up, thereby the vehicle frame 101 can be towed to move towards the counterweight 302, making the marking sprayed straight, which is very convenient to use.

[0038] As an embodiment of the present invention, please refer to Figure 7 and Figure 8, the tensioning assembly includes a tensioning cylinder 405. One end of the tensioning cylinder 405 is movably provided with a connecting rod 406 through which the end of the towing rope 404 is connected to the end of the connecting rod 406. A displacement plate 408 is fixedly installed at one end of the connecting rod 406 located in the tensioning cylinder 405. Displacement ports 407 are provided on both the upper and lower surfaces of the tensioning cylinder 405, and the displacement plate 408 is movably arranged in the displacement ports 407. A first spring 409 is sleeved outside the connecting rod 406. One end of the first spring 409 is connected to the outer wall of the displacement plate 408, and the other end of the first spring 409 is connected to the inner wall of the tensioning cylinder 405. A rotating block 410 is also fixedly installed at the end of the tensioning cylinder 405, and the rotating block 410 is rotatably connected to the outer wall of the counterweight 302. A distance sensor 411 is also fixedly installed on the outer wall of the displacement plate 408 for detecting the distance between the displacement plate 408 and the inner wall of the tensioning cylinder 405. When the vehicle frame 101 moves away from the counterweight 302, the towing rope 404 will pull the displacement plate 408 to move in the displacement port 407 through the connecting rod 406, causing the first spring 409 to be compressed. By means of the distance sensor 411, the distance between the displacement plate 408 and the inner wall of the tensioning cylinder 405 can be detected. When the distance reaches the set value, the driving motor 401 can be prompted to drive the roller 403 to rotate and unwind the towing rope 404, and the unwinding rate is proportional to the distance between the displacement plate 408 and the inner wall of the tensioning cylinder 405. Thus, during the process of the vehicle frame 101 moving away from the counterweight 302, it is effectively avoided that the counterweight 302 moves due to excessive tension, and at the same time, the towing rope 404 can always be kept in a proper tensioned state. Since the tensioned towing rope 404 will be parallel to the marking to be sprayed, it is more convenient for the staff to confirm the position of the marking to be sprayed, and the use effect is better.

[0039] As an embodiment of the present invention, please refer to Figure 8 , an installation groove 501 is further provided on the lower surface of the counterweight 302, and a movable block 503 is movably installed in the installation groove 501. A second spring 502 is connected between the top inner wall of the installation groove 501 and the upper surface of the movable block 503. A roller 504 is fixedly installed on the lower surface of the movable block 503. When the marking spraying work needs to be carried out on the road surface where the marking has never been sprayed, in addition to the method of fixing the position of the counterweight 302 and moving the vehicle frame 101, the position of the vehicle frame 101 can also be kept stationary, and the counterweight 302 can be directly moved to the end point of the marking spraying. At this time, the roller 504 at the bottom of the movable block 503 can assist the movement of the counterweight 302, making the movement process of the counterweight 302 easier. At the same time, when a heavy object is placed on the surface of the counterweight 302, the counterweight 302 will move downward, causing the second spring 502 to be compressed, so that the bottom of the counterweight 302 contacts the ground instead of the roller 504, which will not affect the process of the towing vehicle frame 101 moving towards the counterweight 302, and the use effect is better.

[0040] As an embodiment of the present invention, please refer to Figure 2 and Figure 5 , the cleaning unit includes a side plate 601 fixedly installed on the outer wall of one side of the vehicle frame 101. A bracket 602 is fixedly installed on the outer wall of the side plate 601, and a vertical rod 603 is fixedly installed in the bracket 602. A slider 604 is sleeved on the outer side of the vertical rod 603, and a third spring 606 is sleeved on the outer side of the vertical rod 603. One end of the third spring 606 is connected to the bracket 602, and the other end of the third spring 606 is connected to the upper surface of the slider 604. A push plate 605 is fixedly installed on the outer wall of the slider 604. A baffle 607 is rotatably connected to the upper surface of the push plate 605, and the baffle 607 is located above the bracket 602. The lower surface of the push plate 605 is also provided with grooves distributed at equal intervals, and a ball 608 is rotatably connected in the grooves. When spraying the marking work is required, the baffle 607 can be rotated to move the baffle 607 away from the surface of the bracket 602. At this time, under the elastic force of the third spring 606, the slider 604 can be moved downward, and the push plate 605 can be moved downward together. When the vehicle frame 101 moves, the sundries in front of the nozzle 108 can be pushed to one side by the push plate 605, effectively avoiding the influence of the sundries on the road surface on the spraying effect. Further, the balls 608 at the bottom of the push plate 605 can assist the movement of the push plate 605, effectively avoiding the influence of the push plate 605 on the smoothness of the movement of the vehicle frame 101, and the use effect is better.

[0041] As an embodiment of the present invention, please refer to Figure 2 and Figure 9 , the soot blowing unit includes an air box 703 fixedly arranged below the vehicle frame 101. A blower 701 is fixedly installed on the outer wall of the storage box 103, and an air duct 702 is connected to the air blowing end of the blower 701. The end of the air duct 702 is connected to the air box 703. The outer wall of the air box 703 is connected with air injection pipes 704 distributed at equal intervals. During the spraying process, air can also be blown into the air box 703 through the blower 701, so that the gas is sprayed onto the road surface in front of the nozzle 108 through the air injection pipes 704, and the dust in front of the nozzle 108 is blown away, effectively avoiding the influence of the dust on the road surface on the spraying effect, and further improving the spraying effect.

[0042] During use, the paint can be stored in the storage tank 103 first. Then, the paint in the storage tank 103 can be pumped out by means of the liquid pump 105, and then introduced into the nozzle 108 along the material guide pipe 107 and sprayed downward. Since the paint sprayed by the nozzle 108 is fan-shaped, the width of the marking line generated by spraying is proportional to the distance between the nozzle 108 and the ground. The height of the nozzle 108 can be adjusted by driving the lifting plate 109 to move up and down by the telescopic cylinder 110, so as to achieve the purpose of adjusting the width of the marking line, making the use more flexible. Then, the staff can hold the push handle 102 and push the vehicle frame 101 to move along the old marking line remaining on the road surface to realize the spraying operation of the road marking line. Further, during the spraying process, it can also be aligned with the old marking line through the positioning unit, so as to assist the movement path of the vehicle frame 101 to be aligned with the old marking line, and the spraying effect is better. Still further, during the spraying process, the sundries in front of the nozzle 108 can be removed by the cleaning unit, and at the same time, the dust in front of the nozzle 108 can be blown away by the dust blowing unit, so that the paint can adhere to the ground more stably, further improving the spraying effect. When new marking lines need to be planned on a new road, the vehicle frame 101 can also be driven to move in a straight line by means of the traction unit to ensure that the newly sprayed marking lines are straight and the use effect is better.

[0043] It should be particularly noted that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A marking spraying device for road construction, including a vehicle frame, characterized in that, A push handle is fixedly arranged on the side wall of the vehicle frame. A material storage box is fixedly installed on the upper surface of the vehicle frame. A mounting plate is fixedly installed on the outer wall of one side of the vehicle frame, and a first telescopic cylinder is fixedly installed through the outer wall of the mounting plate. The telescopic end of the first telescopic cylinder is fixedly installed with a lifting plate, and a spray head is fixedly installed at the end of the lifting plate. A limiting rod is fixedly installed on the upper surface of the lifting plate and penetrates through the mounting plate. A liquid pump is fixedly installed on the outer wall of the material storage box, and a liquid guide pipe is communicated with the liquid guiding end of the liquid pump. The end of the liquid guide pipe is communicated with the spray head. The liquid pumping end of the liquid pump is communicated with the material storage box through a pumping pipe. The spray head is in the shape of an isosceles trapezoid and is used for spraying fan-shaped paint. It further includes: A positioning unit, which is arranged in the mounting plate and is used to assist the moving path of the vehicle frame to align with the old marking when the vehicle frame moves; A traction unit, which is arranged in the vehicle frame and is used to traction the vehicle frame to move along a straight line to spray a new marking. The traction unit includes a third telescopic cylinder and a mounting frame fixedly arranged in the vehicle frame. A counterweight block is movably installed in the mounting frame. The telescopic end of the third telescopic cylinder is fixedly connected to the upper surface of the mounting frame. A movable plate is fixedly installed on the outer wall of the third telescopic cylinder, and a lifting rod penetrating through the mounting frame is fixedly installed on the lower surface of the movable plate. A supporting plate is fixedly installed at the end of the lifting rod. A supporting groove is formed on the lower surface of the counterweight block, and the supporting plate is located in the supporting groove. A lifting groove communicated with the supporting groove is formed on the upper surface of the counterweight block, and the lifting rod is located in the lifting groove. A traction module is further arranged in the vehicle frame and is used to traction the vehicle frame to move towards the counterweight block when the counterweight block is fixed. The traction module includes a rotating shaft rotatably arranged in the vehicle frame. A driving motor is fixedly installed on the outer wall of the vehicle frame, and the driving end of the driving motor is connected to the rotating shaft. A roller is fixedly installed on the outer wall of the rotating shaft, and a traction rope is wound around the outside of the roller. The end of the traction rope is connected with a tensioning assembly, and the tensioning assembly is rotatably connected with the outer wall of the counterweight block. The tensioning assembly includes a tensioning cylinder. One end of the tensioning cylinder is movably penetrated with a connecting rod, and the end of the traction rope is connected to the end of the connecting rod. A displacement plate is fixedly installed at the end of the connecting rod located in the tensioning cylinder. Displacement openings are formed on the upper and lower surfaces of the tensioning cylinder, and the displacement plate is movably arranged in the displacement openings. A first spring is sleeved on the outside of the connecting rod. One end of the first spring is connected to the outer wall of the displacement plate, and the other end of the first spring is connected to the inner wall of the tensioning cylinder. A rotating block is further fixedly installed at the end of the tensioning cylinder, and the rotating block is rotatably connected with the outer wall of the counterweight block. A distance sensor is further fixedly installed on the outer wall of the displacement plate and is used to detect the distance between the displacement plate and the inner wall of the tensioning cylinder; A cleaning unit, which is arranged on one side of the vehicle frame and is used to remove sundries in front of the spray head; A dust blowing unit, which is arranged on one side of the vehicle frame and is used to blow away dust in front of the spray head.

2. The line spraying device for road construction according to claim 1, wherein, The positioning unit includes an installation opening formed in the outer wall of the mounting plate, and a telescopic cylinder II is fixedly arranged in the installation opening. The telescopic end of the telescopic cylinder II is fixedly installed with a telescopic rod, and the telescopic rod penetrates through the mounting plate. Positioning rods are rotatably connected to positions near both sides of the end of the telescopic rod. A fixed rod is fixedly installed on the outer wall of the mounting plate, and a sleeve is rotatably connected to the end of the fixed rod. The positioning rod penetrates through the sleeve.

3. A road construction marking spraying device according to claim 1, characterized in that, An installation groove is further formed in the lower surface of the counterweight block, and a movable block is movably installed in the installation groove. A second spring is connected between the top inner wall of the installation groove and the upper surface of the movable block. A roller is fixedly installed on the lower surface of the movable block.

4. A road construction marking spraying device according to claim 1, characterized in that, The cleaning unit includes a side plate fixedly installed on the outer wall of one side of the vehicle frame. A bracket is fixedly installed on the outer wall of the side plate, and a vertical rod is fixedly installed in the bracket. A slider is sleeved on the outer side of the vertical rod, and a third spring is sleeved on the outer side of the vertical rod. One end of the third spring is connected to the bracket, and the other end of the third spring is connected to the upper surface of the slider. A push plate is fixedly installed on the outer wall of the slider. A baffle is rotatably connected to the upper surface of the push plate, and the baffle is located above the bracket. Equally spaced grooves are further formed in the lower surface of the push plate, and balls are rotatably connected in the grooves.

5. A road construction marking spraying device according to claim 1, characterized in that, The soot blowing unit includes an air box fixedly arranged below the vehicle frame. A blower is fixedly installed on the outer wall of the storage bin, and an air duct is connected to the blowing end of the blower. The end of the air duct is communicated with the air box. Equally spaced air injection pipes are communicated with the outer wall of the air box.

Images