Road guide line spraying device

Abstract

The invention relates to the technical field of municipal construction, in particular to a road guide line spraying device which comprises a vehicle body. The spraying vehicle is characterized in that a paint storage tank is fixed to the top of the vehicle body and connected with a spraying mechanism, the spraying mechanism is used for spraying the road guide line, a connecting plate is arranged in the paint storage tank and connected with a rotating mechanism, rotating rods distributed in a circumferential mode penetrate through the interior of the connecting plate, and the rotating rods are rotationally connected with the connecting plate; stirring blades are fixed to the lower end of the rotating rod, a rotation mechanism is connected to the upper end of the rotating rod, and a cleaning mechanism is arranged at the bottom of the vehicle body. When a road guide line is sprayed, paint is stirred through circular motion and autorotation of stirring blades, the solidification phenomenon of the road guide line in the spraying process can be effectively avoided, the spraying effect is guaranteed, meanwhile, the surface of a road can be cleaned, and the spraying efficiency is improved. Therefore, the influence of impurities on the surface of the road on spraying of the road guide line is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of municipal construction, in particular to a road guide line spraying device. Background Art

[0002] Road guide lines, also known as traffic markings, refer to signs on the road surface that use lines, arrows, text, facade markings, raised road signs and contour marks to convey traffic information such as guidance, restrictions and warnings to traffic participants. The road guide line spraying device is a device specially designed for municipal road guide line paint spraying. It combines advanced technology and practical functions to ensure the quality and durability of road markings.

[0003] In the prior art, the road surface cannot be cleaned when spraying road guide lines. Impurities such as dust on the road surface will seriously affect the adhesion of the paint, thereby reducing the spraying effect. In addition, when spraying road guide lines for a long time, the paint inside the paint storage tank is prone to solidification, which makes the paint spraying uneven, further reducing the spraying effect of the paint. Summary of the invention

[0004] The object of the present invention is to provide a road guide line spraying device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A road guide line spraying device comprises a vehicle body, a paint storage tank is fixed on the top of the vehicle body, the paint storage tank is connected to a spraying mechanism, the spraying mechanism is used for spraying the road guide line, a connecting plate is provided inside the paint storage tank, the connecting plate is connected to a rotating mechanism, the rotating mechanism is used to drive the connecting plate to rotate, a circumferentially distributed rotating rod runs through the connecting plate, the rotating rod is rotatably connected to the connecting plate, a stirring blade is fixed to the lower end of the rotating rod, a self-rotating mechanism is connected to the upper end of the rotating rod, the self-rotating mechanism is used to drive the rotating rod to rotate, and a cleaning mechanism is provided at the bottom of the vehicle body, the cleaning mechanism is used to clean the road.

[0006] Preferably: the rotating mechanism includes a motor fixed to the top of the paint storage tank, a rotating shaft is fixed to the output end of the motor, the rotating shaft passes through the top of the paint storage tank and is rotatably connected to the top of the paint storage tank, and the lower end of the rotating shaft is fixedly connected to the top of the connecting plate.

[0007] Preferably, the self-rotating mechanism comprises a gear fixed on the outside of the rotating rod, and a gear ring is fixed on the inner wall of the paint storage tank, and the gear ring is meshed with the gear.

[0008] Preferably: the cleaning mechanism includes an air pressure tube fixed on the top of the vehicle body, the air pressure tube is connected with an air intake pipe and an exhaust pipe, both the air intake pipe and the exhaust pipe are provided with a one-way valve, wherein the exhaust pipe runs through the vehicle body, the air pressure tube is slidably connected with a piston inside, the piston is connected with a driving assembly, and the driving assembly is used to drive the piston to reciprocate inside the air pressure tube.

[0009] Preferably: the driving assembly includes a support rod fixedly connected to the piston, the support rod is connected to a buffer component, the buffer component is used for elastic support of the support rod, the end of the support rod is rotatably connected to a movable rod, the end of the movable rod away from the support rod is rotatably connected to a sliding rod, the sliding rod passes through the side wall of the paint storage tank and is slidably connected to the side wall of the paint storage tank, an arc plate is fixed to one end of the sliding rod located inside the paint storage tank, and the rotating rod is connected to an extrusion component for extruding the arc plate.

[0010] Preferably, the buffer component includes a baffle fixedly connected to the support rod, the baffle is connected to the top of the vehicle body through a first spring distributed in pairs, wherein symmetrically distributed limiting rods are fixed to the top of the vehicle body, the limiting rods pass through the baffle and are slidably connected to the baffle.

[0011] Preferably: the extrusion component includes a transmission rod arranged outside the transmission rod, a cam for extruding the arc plate is fixed to the outside of the transmission rod, the upper end of the rotating rod extends into the transmission rod and is connected to the inner wall of the transmission rod through a second spring, wherein symmetrically distributed limit blocks are fixed to the outside of the transmission rod, and symmetrically distributed limit grooves are provided on the inner wall of the transmission rod, the limit blocks are located inside the limit grooves and are slidably connected to the limit grooves, and the transmission rod is connected to a lifting member, which is used to drive the transmission rod to move up and down, thereby causing the cam and the arc plate to be misaligned.

[0012] Preferably: the lifting member includes a magnet fixed on the top of the cam, a magnetic ring is provided inside the paint storage tank, the magnetic ring has the same magnetic properties as the magnet, a symmetrically distributed guide rod is fixed on the top of the magnetic ring, a symmetrically distributed guide cylinder is fixed on the top of the paint storage tank, the guide rod passes through the top of the paint storage tank and the guide cylinder, a block is fixed on the top of the guide rod, the block is connected to the top of the guide cylinder through a third spring, a pin rod passes through the side wall of the guide cylinder, one end of the pin rod is in abutment with the side wall of the guide rod, and the other end of the pin rod is connected to the side wall of the guide cylinder through a fourth spring, wherein a pin groove matching the pin rod is provided on the side wall of the guide rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: when spraying the road guide line, the present invention stirs the paint by the circular motion and self-rotation of the stirring blade, which can effectively avoid the solidification phenomenon of the road guide line during the spraying process and ensure the spraying effect; The present invention can squeeze the arc plate through the cam while the rotating rod rotates, so that the piston reciprocates inside the air pressure tube. When the piston moves downward, the piston squeezes the gas inside the air pressure tube, so that the gas is discharged from the exhaust pipe, thereby cleaning the road surface and avoiding the influence of dust and other impurities on the road guide line spraying; When there is no need to clean the road surface, the guide rod drives the magnetic ring downward, and the magnetic ring drives the cam and the transmission rod downward at the same time, so that the cam and the arc plate are misaligned, and the arc plate cannot be squeezed when the cam rotates, thereby reducing the number of contacts between the arc plate and the cam and increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the external structure of the paint storage tank in an embodiment of the present invention.

[0015] Figure 2 Schematic diagram of the rotating rod connection structure in an embodiment of the present invention.

[0016] Figure 3 Schematic diagram of the connection structure of the connection plate in an embodiment of the present invention.

[0017] Figure 4 It is a front view of the overall structure in an embodiment of the present invention.

[0018] Figure 5 It is a cross-sectional view of the internal structure of the transmission rod in an embodiment of the present invention.

[0019] Figure 6 It is a cross-sectional view of the internal structure of the guide cylinder in an embodiment of the present invention.

[0020] In the figure: 1-paint storage tank; 2-car body; 3-rotating mechanism; 31-motor; 32-rotating shaft; 4-rotating mechanism; 41-gear; 42-gear ring; 5-cleaning mechanism; 51-support rod; 52-air pressure pipe; 53-piston; 54-intake pipe; 55-exhaust pipe; 56-check valve; 57-movable rod; 58-sliding rod; 59-baffle; 510-limit rod; 511-first spring; 51 2-arc plate; 513-transmission rod; 514-cam; 515-magnet; 516-magnetic ring; 517-guide rod; 518-guide cylinder; 519-block; 520-third spring; 521-pin groove; 522-fourth spring; 523-pin rod; 524-second spring; 525-limiting groove; 526-limiting block; 6-spraying mechanism; 7-rotating rod; 8-connecting plate; 9-stirring blade. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] In one embodiment, see Figure 1-Figure 4 A road guide line spraying device comprises a vehicle body 2, a paint storage tank 1 is fixed on the top of the vehicle body 2, the paint storage tank 1 is connected to a spraying mechanism 6, the spraying mechanism 6 is used for spraying the road guide line, a connecting plate 8 is arranged inside the paint storage tank 1, the connecting plate 8 is connected to a rotating mechanism 3, the rotating mechanism 3 is used to drive the connecting plate 8 to rotate, a rotating rod 7 distributed in a circle is passed through the connecting plate 8, the rotating rod 7 is rotatably connected to the connecting plate 8, a stirring blade 9 is fixed to the lower end of the rotating rod 7, a self-rotation mechanism 4 is connected to the upper end of the rotating rod 7, the self-rotation mechanism 4 is used to drive the rotating rod 7 to rotate, a cleaning mechanism 5 is arranged at the bottom of the vehicle body 2, and the cleaning mechanism 5 is used to clean the road.

[0024] In this embodiment, when the device is spraying the road guide line, the paint is poured into the paint storage tank 1, and the vehicle body 2 is pushed manually or driven by the vehicle to move. During the movement of the vehicle body 2, the paint inside the paint storage tank 1 is extracted by the spraying mechanism 6, and the road guide line is sprayed. The spraying mechanism 6 can be composed of a spray gun and a spray pipe, which is a prior art and will not be described in detail here. During the spraying of the road guide line, the connecting plate 8 can also be driven to rotate by the rotating mechanism 3, and the connecting plate 8 drives multiple rotating rods 7 to make circular motions. The rotating mechanism 3 can be a motor 31 fixed to the top of the paint storage tank 1, and a rotating shaft 32 is fixed at the output end of the motor 31. The rotating shaft 32 passes through the top of the paint storage tank 1 and is rotatably connected to the top of the paint storage tank 1. The lower end of the rotating shaft 32 is fixedly connected to the top of the connecting plate 8, and the rotating shaft 32 is driven to rotate by the motor 31, and the rotating shaft 32 drives the connecting plate 8 to rotate. In addition, the rotating When the rod 7 moves in a circle, the rotation mechanism 4 also drives the rotating rod 7 to rotate, so that the stirring blade 9 can also rotate while moving in a circle. The paint is stirred by the circular motion and rotation of the stirring blade 9, which effectively avoids the solidification of the road guide line during the spraying process and ensures the spraying effect. The rotation mechanism 4 includes a gear 41 fixed to the outside of the rotating rod 7, and a gear ring 42 is fixed on the inner wall of the paint storage tank 1, and the gear ring 42 is meshed with the gear 41. When the rotating rod 7 moves in a circle, it also drives the gear 41 to move in a circle. During the circular motion of the gear 41, it will mesh with the gear ring 42, so that the gear 41 rotates, and then the stirring blade 9 is driven to rotate through the rotating rod 7. In addition, when there are many impurities on the road surface, the road surface is cleaned by the cleaning mechanism 5, which can avoid the influence of impurities on the road surface on the spraying of the road guide line, and effectively ensure the adhesion of the paint and the clarity of the lines.

[0025] See also Figure 1 The cleaning mechanism 5 includes an air pressure pipe 52 fixed on the top of the vehicle body 2, the air pressure pipe 52 is connected with an air intake pipe 54 and an exhaust pipe 55, both of which are provided with a one-way valve 56, wherein the exhaust pipe 55 runs through the vehicle body 2, and a piston 53 is slidably connected inside the air pressure pipe 52, and the piston 53 is connected with a driving assembly, and the driving assembly is used to drive the piston 53 to reciprocate inside the air pressure pipe 52; When there are many impurities on the road surface, the driving component drives the piston 53 to reciprocate inside the air pressure tube 52. Under the action of the one-way valve 56, when the piston 53 moves downward, the piston 53 squeezes the gas inside the air pressure tube 52, so that the gas is discharged from the exhaust pipe 55, and then the road surface is cleaned. When the piston 53 moves upward, negative pressure is formed inside the air pressure tube 52, so that external gas is extracted through the intake pipe 54. This cycle is repeated, which effectively cleans the road surface and effectively avoids the influence of impurities on the spraying of road guide lines.

[0026] See also Figure 2-Figure 4 The driving assembly includes a support rod 51 fixedly connected to a piston 53, the support rod 51 is connected to a buffer component, the buffer component is used for elastic support of the support rod 51, the end of the support rod 51 is rotatably connected to a movable rod 57, the end of the movable rod 57 away from the support rod 51 is rotatably connected to a sliding rod 58, the sliding rod 58 penetrates the side wall of the paint storage tank 1 and is slidably connected to the side wall of the paint storage tank 1, the end of the sliding rod 58 located inside the paint storage tank 1 is fixed with an arc plate 512, and the rotating rod 7 is connected to an extrusion component for extruding the arc plate 512; When spraying the road guide line, when the rotating rod 7 rotates to the position of the arc plate 512, the rotating rod 7 rotates and squeezes the arc plate 512 through the squeezing component. The arc plate 512 drives the sliding rod 58 to move horizontally. The sliding rod 58 drives the support rod 51 to move downward through the movable rod 57, thereby driving the piston 53 to move downward inside the air pressure tube 52. When the squeezing component no longer squeezes the arc plate 512, the arc plate 512 and the piston 53 are automatically reset under the action of the buffer component, thereby driving the piston 53 to move upward inside the air pressure tube 52.

[0027] See also Figure 1 The buffer component includes a baffle 59 fixedly connected to the support rod 51, and the baffle 59 is connected to the top of the vehicle body 2 through a first spring 511 distributed in pairs, wherein a symmetrically distributed limiting rod 510 is fixed to the top of the vehicle body 2, and the limiting rod 510 passes through the baffle 59 and is slidably connected to the baffle 59; The baffle plate 59 is elastically supported by the first spring 511, so that when the extrusion component no longer squeezes the arc plate 512, the piston 53 can automatically reset, wherein the limit rod 510 has a limiting effect on the baffle plate 59, effectively improving the stability of the support rod 51 when it moves up and down.

[0028] See also Figure 2 , Figure 3 and Figure 5 The extrusion component includes a transmission rod 513 arranged outside the transmission rod 513, a cam 514 for extruding the arc plate 512 is fixed outside the transmission rod 513, the upper end of the rotating rod 7 extends into the transmission rod 513 and is connected to the inner wall of the transmission rod 513 through a second spring 524, wherein symmetrically distributed limit blocks 526 are fixed outside the transmission rod 513, and symmetrically distributed limit grooves 525 are provided on the inner wall of the transmission rod 513, the limit blocks 526 are located inside the limit grooves 525 and are slidably connected to the limit grooves 525, and the transmission rod 513 is connected to a lifting member, which is used to drive the transmission rod 513 to move up and down, so that the cam 514 and the arc plate 512 are misaligned; When it is necessary to clean the road surface, the height of the transmission rod 513 is adjusted by the lifting member, so that the cam 514 and the curved plate 512 are located on the same horizontal plane. When one of the rotating rods 7 rotates to the position of the curved plate 512, the rotating rod 7 drives the transmission rod 513 to rotate through the cooperation of the limit block 526 and the limit groove 525, and then drives the cam 514 to rotate, so that the cam 514 can squeeze the curved plate 512. When the transmission rod 513 rotates to a certain extent, the cam 514 no longer squeezes the curved plate 512, and the curved plate 512 automatically resets. This cycle is repeated, so that the piston 53 can continuously reciprocate inside the air pressure tube 52, and when the rotating rod 7 moves to the other side of the curved plate 512, the other rotating rod 7 just rotates to the position of the curved plate 512, effectively improving the squeezing frequency of the cam 514 on the curved plate 512, thereby increasing the reciprocating frequency of the piston 53 inside the air pressure tube 52, ensuring the exhaust efficiency of the exhaust pipe 55, and improving the cleaning effect on the road surface.

[0029] See also Figure 3 and Figure 6 The lifting member includes a magnet 515 fixed on the top of the cam 514, a magnetic ring 516 is provided inside the paint storage tank 1, and the magnetic ring 516 has the same magnetic properties as the magnet 515. A symmetrically distributed guide rod 517 is fixed on the top of the magnetic ring 516, and a symmetrically distributed guide cylinder 518 is fixed on the top of the paint storage tank 1. The guide rod 517 passes through the top of the paint storage tank 1 and the guide cylinder 518. A stopper 519 is fixed on the top of the guide rod 517, and the stopper 519 is connected to the top of the guide cylinder 518 through a third spring 520. A pin rod 523 passes through the side wall of the guide cylinder 518, one end of the pin rod 523 is in contact with the side wall of the guide rod 517, and the other end of the pin rod 523 is connected to the side wall of the guide cylinder 518 through a fourth spring 522, wherein a pin groove 521 adapted to the pin rod 523 is provided on the side wall of the guide rod 517; When the road surface is relatively clean and does not need to be cleaned, the stopper 519 is pressed downward, and the stopper 519 drives the magnetic ring 516 to move downward through the guide rod 517. Since the magnetic properties of the magnetic ring 516 and the magnet 515 are the same, the magnetic ring 516 can drive the cam 514 and the transmission rod 513 to move downward through the repulsive force while moving downward, so that the cam 514 and the arc plate 512 are misaligned, and the cam 514 cannot squeeze the arc plate 512 while rotating, thereby reducing the number of contacts between the arc plate 512 and the cam 514, and improving the service life of the device. When misalignment occurs, the pin rod 523 automatically enters the pin groove 521 under the action of the fourth spring 522, thereby fixing the guide rod 517 and ensuring the stability of the magnetic ring 516. When the road surface needs to be cleaned, the pin rod 523 is pulled out from the pin groove 521, and the fixing of the pin rod 523 is lost. The guide rod 517 automatically resets under the action of the third spring 520 and the stopper 519, thereby driving the magnetic ring 516 to move upward. At this time, the transmission rod 513 automatically resets under the action of the second spring 524, thereby driving the cam 514 to move upward and be located on the same horizontal plane as the arc plate 512.

[0030] Working principle: When the device is spraying the road guide line, the connecting plate 8 is driven to rotate by the rotating shaft 32, and the connecting plate 8 drives the multiple rotating rods 7 to make circular motion. The rotating rod 7 drives the gear 41 to make circular motion at the same time. During the circular motion of the gear 41, it will mesh with the gear ring 42, so that the gear 41 will rotate, and then the stirring blade 9 is driven to rotate by the rotating rod 7, so that the stirring blade 9 can also rotate while the circular motion is in progress. The paint is stirred by the circular motion and rotation of the stirring blade 9, which effectively improves the stirring effect of the paint, thereby avoiding the solidification phenomenon of the road guide line during the spraying process and ensuring the spraying effect. In addition, when one of the rotating rods 7 rotates to the arc plate 5 12, the rotating rod 7 drives the transmission rod 513 to rotate through the cooperation of the limit block 526 and the limit groove 525, thereby driving the cam 514 to rotate, so that the cam 514 can squeeze the arc plate 512, and the arc plate 512 drives the slide bar 58 to move horizontally. The slide bar 58 drives the support rod 51 to move downward through the movable rod 57, thereby driving the piston 53 to move downward inside the air pressure tube 52. When the transmission rod 513 rotates to a certain extent, the cam 514 no longer squeezes the arc plate 512, and the arc plate 512 automatically resets, thereby causing the piston 53 to move upward. When the piston 53 moves downward, the piston 53 squeezes the gas inside the air pressure tube 52, so that the gas is discharged from the exhaust pipe 55, thereby affecting the road surface. When the piston 53 moves upward, negative pressure is formed inside the air pressure tube 52, thereby extracting external air through the air intake pipe 54, and this cycle is repeated, which effectively cleans the road surface, thereby avoiding the influence of impurities on the road guide line spraying, and when the rotating rod 7 moves to the other side of the arc plate 512, the other rotating rod 7 just rotates to the position of the arc plate 512, effectively increasing the squeezing frequency of the cam 514 on the arc plate 512, thereby increasing the frequency of the piston 53 moving inside the air pressure tube 52, ensuring the exhaust efficiency of the exhaust pipe 55, and improving the cleaning effect of the road surface. When the road surface is relatively clean and does not need to be cleaned, the stopper 5 is pressed downward. 19. The stopper 519 drives the magnetic ring 516 to move downward through the guide rod 517. Since the magnetic ring 516 has the same magnetic properties as the magnet 515, the magnetic ring 516 can drive the cam 514 and the transmission rod 513 to move downward through the repulsive force while moving downward, so that the cam 514 and the arc plate 512 are misaligned, and the cam 514 cannot squeeze the arc plate 512 while rotating, thereby reducing the number of contacts between the arc plate 512 and the cam 514 and improving the service life of the device. When the cam 514 and the arc plate 512 are misaligned, the pin rod 523 automatically enters the pin groove 521, thereby fixing the guide rod 517 and ensuring the stability of the magnetic ring 516.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A road guide line spraying device, comprising a vehicle body; characterized in that: A paint storage tank is fixed on the top of the vehicle body, and the paint storage tank is connected to a spraying mechanism, which is used for spraying road guide lines. A connecting plate is provided inside the paint storage tank, and the connecting plate is connected to a rotating mechanism, which is used to drive the connecting plate to rotate. A circularly distributed rotating rod runs through the connecting plate, and the rotating rod is rotatably connected to the connecting plate. A stirring blade is fixed to the lower end of the rotating rod, and a self-rotation mechanism is connected to the upper end of the rotating rod, which is used to drive the rotating rod to rotate. A cleaning mechanism is provided at the bottom of the vehicle body, and the cleaning mechanism is used to clean the road.

2. A road guide line spraying device according to claim 1, characterized in that: The rotating mechanism includes a motor fixed on the top of the paint storage tank, a rotating shaft is fixed on the output end of the motor, the rotating shaft passes through the top of the paint storage tank and is rotatably connected to the top of the paint storage tank, and the lower end of the rotating shaft is fixedly connected to the top of the connecting plate.

3. A road guide line spraying device according to claim 1, characterized in that: The self-rotating mechanism comprises a gear fixed on the outside of the rotating rod, and a gear ring is fixed on the inner wall of the paint storage tank, and the gear ring is meshed with the gear.

4. A road guide line spraying device according to claim 1, characterized in that: The cleaning mechanism includes an air pressure tube fixed on the top of the vehicle body, the air pressure tube is connected with an intake pipe and an exhaust pipe, both of which are provided with a one-way valve, wherein the exhaust pipe runs through the vehicle body, and a piston is slidably connected inside the air pressure tube, and the piston is connected with a driving assembly, and the driving assembly is used to drive the piston to reciprocate inside the air pressure tube.

5. A road guide line spraying device according to claim 4, characterized in that: The driving assembly includes a support rod fixedly connected to the piston, the support rod is connected to a buffer component, the buffer component is used for elastic support of the support rod, the end of the support rod is rotatably connected to a movable rod, the end of the movable rod away from the support rod is rotatably connected to a sliding rod, the sliding rod passes through the side wall of the paint storage tank and is slidably connected to the side wall of the paint storage tank, an arc plate is fixed to one end of the sliding rod located inside the paint storage tank, and the rotating rod is connected to an extrusion component for extruding the arc plate.

6. A road guide line spraying device according to claim 5, characterized in that: The buffer component includes a baffle fixedly connected to the support rod, the baffle is connected to the top of the vehicle body through a first spring distributed in pairs, wherein a symmetrically distributed limiting rod is fixed on the top of the vehicle body, the limiting rod passes through the baffle and is slidably connected to the baffle.

7. A road guide line spraying device according to claim 6, characterized in that: The extrusion component includes a transmission rod arranged outside the transmission rod, a cam for extruding the arc plate is fixed outside the transmission rod, the upper end of the rotating rod extends into the transmission rod and is connected to the inner wall of the transmission rod through a second spring, wherein symmetrically distributed limit blocks are fixed outside the transmission rod, and symmetrically distributed limit grooves are provided on the inner wall of the transmission rod, the limit blocks are located inside the limit grooves and are slidably connected to the limit grooves, and the transmission rod is connected to a lifting member, which is used to drive the transmission rod to move up and down, thereby causing the cam and the arc plate to be misaligned.

8. A road guide line spraying device according to claim 7, characterized in that: The lifting member includes a magnet fixed on the top of the cam, a magnetic ring is provided inside the paint storage tank, and the magnetic property of the magnetic ring is the same as that of the magnet, a symmetrically distributed guide rod is fixed on the top of the magnetic ring, a symmetrically distributed guide cylinder is fixed on the top of the paint storage tank, the guide rod passes through the top of the paint storage tank and the guide cylinder, a block is fixed on the top of the guide rod, the block is connected to the top of the guide cylinder through a third spring, a pin rod passes through the side wall of the guide cylinder, one end of the pin rod is in contact with the side wall of the guide rod, and the other end of the pin rod is connected to the side wall of the guide cylinder through a fourth spring, wherein a pin groove matching the pin rod is provided on the side wall of the guide rod.

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