Target point cleaning mechanism of a line marking vehicle

Abstract

The present invention relates to the technical field of road marking cleaning, and particularly to a target point cleaning mechanism for a line marking vehicle, which is used to solve the problem that the paint adheres unstably due to oil stains on the road; the mechanism includes a vehicle body, on which a transmission assembly is arranged, and a dust suction assembly and a paint spraying assembly are arranged on the transmission assembly; the dust suction assembly includes a middle cylinder, an inner cylinder that is slidably connected to the inner wall of the middle cylinder is arranged inside the middle cylinder, a pulling rope is connected to the top of the inner cylinder, two rollers are vertically symmetrically rotatably connected to the side wall of the middle cylinder, the pulling rope passes through between the two rollers, an adsorption pipe is communicated with the top wall of the inner cylinder, and the end of the adsorption pipe is communicated with a negative pressure cylinder; the middle cylinder is connected with a cover body, and an infrared light oil stain sensor is arranged inside the cover body; when the device detects that there are oil stains attached to the road surface, the pulling rope pulls the inner cylinder to rise, so that the inner cylinder is far away from the road surface, thereby preventing the oil stains on the road surface from adhering to the inner cylinder and preventing the subsequent road surface from being contaminated by the oil stains on the inner cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of road marking cleaning, and particularly to a target point cleaning mechanism for a line marking vehicle. Background Art

[0002] During the process of road line marking construction, ensuring the cleanliness of the road surface plays a crucial role in the adhesion of the marking paint and the quality of the line marking. Traditional line marking vehicles often only focus on the line marking function and neglect the road surface pretreatment link, which may lead to a series of problems. For example, if sundries such as sand and dust on the road surface are not cleared, they will be sandwiched between the paint surface and the road surface during painting, greatly weakening the adhesion of the paint surface, resulting in phenomena such as peeling and wear of the line marking. This not only shortens the service life of the line marking but also may affect the clarity and accuracy of traffic signs, posing a potential threat to traffic safety.

[0003] In addition, with the development of modern transportation, the oil pollution situation on the road is becoming increasingly complex. Oil leakage from vehicles and oil spills in industrial areas occur frequently. Once these oils adhere to the road surface, they will not only seriously affect the adhesion effect of the marking paint but also may cause environmental pollution. However, most of the existing line marking vehicles are not equipped with effective oil pollution detection and response mechanisms, and cannot detect and handle oil pollution problems in a timely manner before line marking, resulting in the blind progress of line marking work on the oil-polluted road surface, thus expanding the scope of oil pollution. Summary of the Invention

[0004] The present invention provides a target point cleaning mechanism for a line marking vehicle to solve the problem that the cleaning of existing devices on roads with oil pollution will expand the scope of oil pollution.

[0005] In order to alleviate the above technical problems, the technical solution provided by the present invention lies in:

[0006] A target point cleaning mechanism for a line marking vehicle, including a vehicle body, a transmission assembly is arranged on the vehicle body, and a dust suction assembly and a paint spraying assembly are arranged on the transmission assembly;

[0007] The dust suction assembly includes a middle cylinder, an inner cylinder that is slidably connected to the inner wall of the middle cylinder and fits with it is arranged inside the middle cylinder. A pull rope is connected to the top of the inner cylinder. Two rollers are vertically symmetrically rotatably connected to the side wall of the middle cylinder. The pull rope passes through between the two rollers. An adsorption pipe is communicated with the top wall of the inner cylinder, and the end of the adsorption pipe is communicated with a negative pressure cylinder;

[0008] A bracket is connected to the outer wall of the middle cylinder, a cover body is connected to the bottom of the bracket, and an infrared light oil pollution sensor is arranged inside the cover body. When the road surface to be marked is attached with oil pollution, the rollers rotate to make the pull rope pull the inner cylinder to rise.

[0009] Further, an outer cylinder that fits against the outer wall is slidably connected to the outer side of the middle cylinder. Annular brushes are provided at the ports of both the inner cylinder and the outer cylinder. One end of the drawstring away from the inner cylinder is connected to the outer cylinder.

[0010] Further, the transmission assembly includes a worm rotatably connected to the vehicle body. Two sets of threads are symmetrically provided on the worm. Two worm wheels are respectively engaged with the two sets of threads. A first connecting rod and a second connecting rod are respectively connected to the two worm wheels. The painting assembly includes a paint nozzle. The paint nozzle is connected to the second connecting rod. The middle cylinder is connected to the first connecting rod.

[0011] Further, the transmission assembly further includes a swivel ring connected to the first connecting rod. The middle cylinder is rotatably connected to the swivel ring.

[0012] Further, the transmission assembly further includes a fixed seat. A first pulley is fixedly connected to the fixed seat. A second pulley is fixedly connected to the middle of the middle cylinder. A belt is drivingly connected between the first pulley and the second pulley.

[0013] Further, the vehicle body includes a vehicle body and moving wheels connected to the bottom of the vehicle body.

[0014] Further, a brushing assembly is further included. The brushing assembly includes a lower rack. An end of the lower rack is connected to a mounting bracket. A motor is vertically slidably connected to the mounting bracket. An output end of the motor is connected to a brush disc. A nozzle for spraying degreaser is connected to the mounting bracket. The nozzle faces the brush disc. When the road surface to be marked is attached with oil stains, the motor moves downwards so that the brush disc contacts the road surface, and the nozzle sprays degreaser towards the brush disc.

[0015] Further, the brushing assembly further includes a gear connected to the middle of the worm. The lower rack meshes with the gear.

[0016] Further, the brushing assembly further includes an upper rack meshing with the gear. A counterweight is connected to an end of the upper rack.

[0017] Further, the counterweight is slidably connected to the upper rack. When the motor moves downwards, the counterweight slides towards the lower rack.

[0018] The beneficial effects of the present invention are analyzed as follows:

[0019] A target point cleaning mechanism for a line marking vehicle, comprising a vehicle body, a transmission component is arranged on the vehicle body, and a dust suction component and a painting component are arranged on the transmission component; the dust suction component comprises a middle cylinder, an inner cylinder that is slidably connected to the inside of the middle cylinder and fits against its inner wall is connected to the top of the inner cylinder with a pull rope, two rollers are vertically symmetrically rotatably connected to the side wall of the middle cylinder, the pull rope passes through between the two rollers, the top wall of the inner cylinder is communicated with an adsorption pipe, and the end of the adsorption pipe is communicated with a negative pressure cylinder; a support is connected to the outer wall of the middle cylinder, and the bottom of the support is connected with a cover body, and an infrared light oil stain sensor is arranged inside the cover body. When the road surface to be marked is attached with oil stains, the rollers rotate to make the pull rope pull the inner cylinder up.

[0020] The dust suction component is located at the end of the vehicle body in the traveling direction, and the painting component is located at the tail of the vehicle body in the traveling direction. When the vehicle body moves forward, the dust suction component performs negative pressure adsorption on sundries such as sand and stones on the road surface to be marked, so that the sundries on the road surface are cleaned, ensuring that the paint surface can firmly adhere to the road surface during subsequent painting. The infrared light oil stain sensor monitors the road surface in real time. When it detects that the road surface is attached with oil stains, the control system receives the signal and controls the rollers to rotate. Thus, the rollers drive the pull rope, making the pull rope pull the inner cylinder up, so that the inner cylinder is far away from the road surface, preventing the oil stains on the road surface from adhering to the inner cylinder and preventing the subsequent situation that the road surface is contaminated by the oil stains on the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the related art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0023] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0024] Figure 3 Schematic diagram of the structure at the transmission component of the present invention;

[0025] Figure 4 Schematic diagram of the structure at the dust suction component of the present invention;

[0026] Figure 5 Schematic diagram of the structure of the brushing component of the present invention;

[0027] Figure 6 Schematic diagram of the structure at the gear of the present invention.

[0028] Icon:

[0029] 100, vehicle body; 110, vehicle body; 120, moving wheels; 130, negative pressure cylinder; 140, adsorption tube; 200, transmission assembly; 210, worm; 220, worm gear; 230, first connecting rod; 240, second connecting rod; 250, first pulley; 251, fixed seat; 260, belt; 270, second pulley; 300, dust collection assembly; 310, middle cylinder; 320, rotating ring; 330, inner cylinder; 340, outer cylinder; 350, annular brush; 360, pull rope; 370, roller; 380, bracket; 381, cover; 390, infrared light oil stain sensor; 400, painting assembly; 410, paint nozzle; 500, brushing assembly; 510, gear; 520, lower rack; 521, mounting frame; 530, motor; 540, brush disc; 550, upper rack; 560, counterweight. Detailed implementation manners

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Embodiment, as Figures 1 - 6As shown, a target point cleaning mechanism of a marking vehicle includes a vehicle body 100, a transmission assembly 200 is arranged on the vehicle body 100, and a dust collection assembly 300 and a paint spraying assembly 400 are arranged on the transmission assembly 200; the dust collection assembly 300 includes a middle cylinder 310, an inner cylinder 330 that is slidably connected to the inner wall of the middle cylinder 310, a pull rope 360 ​​is connected to the top of the inner cylinder 330, and two rollers 300 are vertically symmetrically rotatably connected to the side wall of the middle cylinder 310. 70, the pull rope 360 ​​is inserted between the two rollers 370, the top wall of the inner cylinder 330 is connected to the adsorption tube 140, and the end of the adsorption tube 140 is connected to the negative pressure cylinder 130; the outer wall of the middle cylinder 310 is connected to the bracket 380, and the bottom of the bracket 380 is connected to the cover body 381, and the cover body 381 is provided with an infrared light oil sensor 390. When oil is attached to the road surface to be marked, the roller 370 rotates so that the pull rope 360 ​​pulls the inner cylinder 330 to rise.

[0034] The working mechanism of the target point cleaning mechanism of the marking vehicle provided in this embodiment is as follows:

[0035] The dust suction component 300 is located at the end of the vehicle body 100 in the direction of travel, and the paint spraying component 400 is located at the rear of the vehicle body 100 in the direction of travel. When the vehicle body 100 moves forward, the dust suction component 300 performs negative pressure adsorption on the sand and other debris on the road surface to be painted, so that the debris on the road surface is cleaned, ensuring that the paint surface can be firmly attached to the road surface during subsequent painting. The infrared light oil pollution sensor 390 monitors the road surface in real time. When it is detected that there is oil pollution attached to the road surface, the control system receives a signal and controls the roller 370 to rotate, so that the roller 370 drives the pull rope 360, so that the pull rope 360 ​​pulls the inner cylinder 330 to rise, so that the inner cylinder 330 is away from the road surface, thereby preventing the oil pollution on the road surface from adhering to the inner cylinder 330, so that the subsequent road surface is polluted by the oil pollution on the inner cylinder 330.

[0036] The infrared light oil pollution sensor 390 is arranged in the cover body 381, so as to shield the rest of the light, so that the infrared light oil pollution sensor 390 is not affected by the rest of the light, thereby ensuring the measurement accuracy.

[0037] Among the optional methods of this embodiment, the more preferred ones are:

[0038] The outer cylinder 340 that fits the outer wall is slidably connected to the outside of the middle cylinder 310 , annular brushes 350 are provided at the ends of the inner cylinder 330 and the outer cylinder 340 , and the end of the pull rope 360 ​​away from the inner cylinder 330 is connected to the outer cylinder 340 .

[0039] The setting of the annular brush 350 allows dust particles or fine stones on the road surface to be swept away, thereby preventing large-volume debris from entering the inner cylinder 330 and blocking the adsorption tube 140. The two ends of the pull rope 360 ​​are respectively connected to the inner cylinder 330 and the outer cylinder 340, and the weight of the inner cylinder 330 and the outer cylinder 340 are close, so that the roller 370 is easy to rotate;

[0040] The outer cylinder 340 has a diameter larger than that of the inner cylinder 330. When the width of the scribed line is relatively wide, the outer cylinder 340 can be switched to move downward, and the inner cylinder 330 is in an upward movement state;

[0041] In addition, the different sizes of the inner cylinder 330 and the outer cylinder 340 can be set not only for the width of the scribed line, but also can be automatically switched when the annular brush 350 adheres to oil stains or is too dirty. The switching timing can be when the control system receives that the infrared light oil stain sensor 390 detects the existence of oil stains on the road surface.

[0042] Regarding the structure of the transmission assembly 200, specifically:

[0043] The transmission assembly 200 includes a worm 210 rotatably connected to the vehicle body 100. Two groups of threads are symmetrically arranged on the worm 210. Two worm wheels 220 are respectively engaged with the two groups of threads. A first connecting rod 230 and a second connecting rod 240 are respectively connected to the two worm wheels 220. The painting assembly 400 includes a paint nozzle 410. The paint nozzle 410 is connected to the second connecting rod 240, and the middle cylinder 310 is connected to the first connecting rod 230.

[0044] When adjusting the scribed line position, the worm 210 is controlled to rotate. Since the thread helix directions on the worm 210 are opposite, the worm 210 can drive the two worm wheels 220 to swing synchronously and in opposite directions. Furthermore, the connection line between the dust suction assembly 300 and the painting assembly 400 is parallel to the traveling direction of the vehicle body 100, ensuring that the dust suction assembly 300 can clean the road surface that the painting assembly 400 is about to spray. And, by controlling the rotation of the worm 210, the angle between the first connecting rod 230 and the second connecting rod 240 can be changed. Thus, when scribing the roadside, the vehicle body 100 can keep a distance from the roadside, and the dust suction assembly 300 and the painting assembly 400 can clean and scribe the roadside;

[0045] The paint nozzle 410 is controlled by the control system to open and close. When the control system detects that the vehicle body 100 is in a moving state, the paint nozzle 410 is synchronously opened.

[0046] In an optional manner of this embodiment, preferably:

[0047] The transmission assembly 200 further includes a swivel ring 320 connected to the first connecting rod 230. The middle cylinder 310 is rotatably connected to the swivel ring 320.

[0048] The middle cylinder 310 can rotate relative to the swivel ring 320, ensuring that the middle cylinder 310 can be driven to move while enabling the position of the infrared light oil stain sensor 390 to be adjusted to the direction towards the movement of the vehicle body 100 on the middle cylinder 310.

[0049] In an optional manner of this embodiment, preferably:

[0050] The transmission assembly 200 further includes a fixed seat 251. A first pulley 250 is fixedly connected to the fixed seat 251. A second pulley 270 is fixedly connected to the middle of the middle cylinder 310. A belt 260 is drivingly connected between the first pulley 250 and the second pulley 270.

[0051] Since the first pulley 250 is non-rotatable, the belt 260 can move on the first pulley 250 when the first link 230 swings. At this time, the belt 260 drives the second pulley 270 to rotate. And the second pulley 270 is fixedly connected to the middle cylinder 310. Thus, when the first link 230 swings, the middle cylinder 310 can rotate simultaneously, and the rotation angle of the middle cylinder 310 increases and decreases synchronously with the swing of the first link 230, ensuring that the bracket 380 always faces the moving direction of the vehicle body 100. When the position of the dust suction assembly 300 changes, the infrared light oil stain sensor 390 can always detect the road surface that the middle cylinder 310 is about to pass through.

[0052] In an alternative embodiment of the present example, preferably:

[0053] The vehicle body 100 includes a vehicle body 110 and moving wheels 120 connected to the bottom of the vehicle body 110.

[0054] The vehicle body 110 carries various components and moves by relying on satellite positioning or remote control.

[0055] Regarding the structure of the brushing assembly 500, specifically:

[0056] The brushing assembly 500 includes a lower rack 520. An end of the lower rack 520 is connected to a mounting bracket 521. A motor 530 is vertically slidably connected to the mounting bracket 521. An output end of the motor 530 is connected to a brush disc 540. A nozzle for spraying degreaser is connected to the mounting bracket 521. The nozzle faces the brush disc 540. When the road surface to be lined is attached with oil stains, the motor 530 moves downwards so that the brush disc 540 contacts the road surface, and the nozzle sprays degreaser towards the brush disc 540.

[0057] The dust suction assembly 300, the brush disc 540 and the painting assembly 400 can always be in the same straight line. When the infrared light oil stain sensor 390 detects oil stains on the road surface, the roller 370 rotates to make the pull rope 360 pull the inner cylinder 330 upwards, so that the annular brush 350 does not contact the road surface, avoiding the annular brush 350 from being contaminated with oil stains. At the same time, the motor 530 moves downwards and drives the brush disc 540 to rotate. In addition, the nozzle sprays degreaser towards the position of the brush disc 540, so that the brush disc 540 can clean the oil stains on the road surface, ensuring that the paint stably adheres to the road surface.

[0058] In an alternative embodiment of the present example, preferably:

[0059] The brushing assembly 500 further includes a gear 510 connected to the middle of the worm 210, and the lower rack 520 meshes with the gear 510.

[0060] While the worm 210 rotates, the gear 510 connected thereto also rotates synchronously. At this time, the gear 510 drives the lower rack 520 to move away from or close to the vehicle body 110, so that the brush disc 540 can be located on the connection line of the dust suction assembly 300 and the painting assembly 400.

[0061] In an alternative embodiment of the present embodiment, preferably:

[0062] The brushing assembly 500 further includes an upper rack 550 meshing with the gear 510, and a counterweight 560 is connected to the end of the upper rack 550.

[0063] The upper rack 550 and the lower rack 520 are symmetrically arranged. When the worm gear 220 rotates to move the brush disc 540 away from the vehicle body 110, the upper rack 550 synchronously drives the counterweight 560 to move away from the vehicle body 110 and the brush disc 540, so as to balance the center of gravity of the vehicle body 110 and increase the traveling stability of the vehicle body 100.

[0064] In an alternative embodiment of the present embodiment, preferably:

[0065] The counterweight 560 is slidably connected to the upper rack 550. When the motor 530 moves downward, the counterweight 560 slides in the direction of the lower rack 520.

[0066] The counterweight 560 and the brush disc 540 are symmetrically arranged. The brush disc 540, the dust suction assembly 300 and the paint nozzle 410 are all arranged on the same straight line. The counterweight 560 offsets the offset force of the brush disc 540, the dust suction assembly 300 and the paint nozzle 410 on the vehicle body 110. When the infrared light oil stain sensor 390 scans that there is oil stain on the road surface, the control system controls the motor 530 to move downward so that the brush disc 540 contacts the road surface. At the same time, the counterweight 560 slides in the direction close to the brush disc 540, so that the center of gravity of the vehicle body 110 deviates towards the direction of the brush disc 540, ensuring that the brush disc 540 can be in close contact with the road surface;

[0067] The counterweight 560 and the motor 530 can be respectively connected to the upper rack 550 and the mounting bracket 521 through electric sliders or electric telescopic rods, etc. The control system controls the electric sliders or electric telescopic rods to make the counterweight 560 and the motor 530 slide.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A target point cleaning mechanism for a marking vehicle, comprising a vehicle body (100), characterized in that: The vehicle body (100) is provided with a transmission assembly (200), and the transmission assembly (200) is provided with a dust collection assembly (300) and a paint spraying assembly (400); The dust collection assembly (300) comprises a middle cylinder (310), the inner cylinder (330) being slidably connected to the inner wall of the middle cylinder (310), the top of the inner cylinder (330) being connected to a pull rope (360), two rollers (370) being vertically symmetrically rotatably connected to the side wall of the middle cylinder (310), the pull rope (360) being inserted between the two rollers (370), the top wall of the inner cylinder (330) being connected to an adsorption tube (140), and the end of the adsorption tube (140) being connected to a negative pressure cylinder (130); The outer wall of the middle cylinder (310) is connected to a bracket (380), the bottom of the bracket (380) is connected to a cover (381), and an infrared oil sensor (390) is arranged inside the cover (381). When oil is attached to the road surface to be marked, the roller (370) rotates so that the pull rope (360) pulls the inner cylinder (330) upward; The transmission assembly (200) comprises a worm (210) rotatably connected to the vehicle body (100), the worm (210) being symmetrically provided with two sets of threads, the two sets of threads being respectively meshed with two worm wheels (220), the two worm wheels (220) being respectively connected with a first connecting rod (230) and a second connecting rod (240), the paint spraying assembly (400) comprising a paint spraying nozzle (410), the paint spraying nozzle (410) being connected to the second connecting rod (240), and the middle cylinder (310) being connected to the first connecting rod (230); The transmission assembly (200) further comprises a swivel (320) connected to the first connecting rod (230), and the middle cylinder (310) is rotatably connected to the swivel (320); The transmission assembly (200) further comprises a fixed seat (251), a first pulley (250) being fixedly connected to the fixed seat (251), a second pulley (270) being fixedly connected to the middle of the middle cylinder (310), and a belt (260) being transmission-connected between the first pulley (250) and the second pulley (270); Since the first pulley (250) is non-rotatable, the belt (260) can move on the first pulley (250) when the first connecting rod (230) swings, and the belt (260) drives the second pulley (270) to rotate, and the second pulley (270) is fixedly connected to the middle cylinder (310), so that when the first connecting rod (230) swings, the middle cylinder (310) can rotate at the same time, and the rotation angle of the middle cylinder (310) increases and decreases synchronously with the swing of the first connecting rod (230), ensuring that the bracket (380) is always facing the moving direction of the vehicle body (100), so that when the position of the dust collection component (300) changes, the infrared light oil pollution sensor (390) can always detect the road surface that the middle cylinder (310) is about to pass.

2. The target point cleaning mechanism of the marking vehicle according to claim 1, characterized in that: The middle cylinder (310) is slidably connected to an outer cylinder (340) that fits the outer wall. Annular brushes (350) are provided at the ports of the inner cylinder (330) and the outer cylinder (340). One end of the pull rope (360) away from the inner cylinder (330) is connected to the outer cylinder (340).

3. The target point cleaning mechanism of the marking vehicle according to claim 2, characterized in that: The vehicle body (100) comprises a vehicle body (110) and moving wheels (120) connected to the bottom of the vehicle body (110).

4. The target point cleaning mechanism of the marking vehicle according to claim 3, characterized in that: The invention also comprises a brushing assembly (500), the brushing assembly (500) comprising a lower rack (520), the end of the lower rack (520) being connected to a mounting frame (521), a motor (530) being vertically slidably connected to the mounting frame (521), the output end of the motor (530) being connected to a brush plate (540), a nozzle for spraying a degreasing agent being connected to the mounting frame (521), the nozzle facing the brush plate (540), and when oil stains are attached to the road surface to be marked, the motor (530) moves downward to make the brush plate (540) contact the road surface, and the nozzle sprays the degreasing agent toward the brush plate (540).

5. The target point cleaning mechanism of the marking vehicle according to claim 4, characterized in that: The brushing assembly (500) further comprises a gear (510) connected to the middle portion of the worm (210), and the lower rack (520) is meshed with the gear (510).

6. The target point cleaning mechanism of the marking vehicle according to claim 5, characterized in that: The scrubbing assembly (500) further comprises an upper rack (550) meshing with the gear (510), and a counterweight (560) is connected to the end of the upper rack (550).

7. The target point cleaning mechanism of the marking vehicle according to claim 6, characterized in that: The counterweight block (560) is slidably connected to the upper rack (550); when the motor (530) moves downward, the counterweight block (560) slides in the direction of the lower rack (520).

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