Road marking removal device

Abstract

The present invention belongs to the technical field of road marking removal, and provides a road marking removal device, including a mobile frame, the upper end surface of the mobile frame is fixedly connected to a lifting seat, the telescopic part of the lifting seat is fixedly connected to a fixed plate, a plurality of scraping mechanisms are arranged side by side on the fixed plate, a strip hole is opened on the mobile frame, all scraping mechanisms can penetrate to the lower side of the mobile frame, and a driving mechanism for driving all scraping mechanisms to rotate is arranged on the fixed plate, and the scraping mechanism can scrape the markings on the potholes of the road surface. In the present invention, when encountering a pothole, at this time, under the elastic force of the elastic component, the cutter disc contacts the bottom of the pothole, thereby cleaning the markings at the bottom of the pothole, and at this time, the trimming component elastically contacts the side wall of the pothole, thereby scraping the markings on the side wall of the pothole.

Description

Technical Field

[0001] The invention belongs to the technical field of road marking removal, and in particular relates to a road marking removal device. Background Art

[0002] Road markings refer to the markings on the road surface that use lines, arrows, words, elevation marks, raised road signs and contour marks to convey traffic information such as guidance, restrictions and warnings to traffic participants. Its function is to control and guide traffic. It can be used in conjunction with signs or alone.

[0003] Existing road marking removal devices generally use scrapers or grinding devices to clean abandoned road markings on the road surface. However, after long-term use, small potholes and depressions are prone to appear on the road surface, and the road markings in this part sink with the road surface, making it difficult to be cleaned by the road marking removal device.

[0004] The existing road marking removal device is difficult to effectively clean the road markings in potholes and depressions when in use, and the road markings sprayed on the road surface are not easy to fall off, and it is difficult to effectively and thoroughly remove the road markings using a scraper or a grinding device. Summary of the invention

[0005] The purpose of the present invention is to provide a road marking removal device, aiming to solve the technical problems that the existing road marking removal devices in the prior art are difficult to effectively clean the road markings in potholes and depressions when in use, and the road markings are not easy to fall off when sprayed on the road surface.

[0006] The present invention is implemented as follows: a road marking line removal device comprises a mobile frame, the upper end surface of the mobile frame is fixedly connected to a lifting seat, the telescopic part of the lifting seat is fixedly connected to a fixed plate, a plurality of scraping mechanisms are arranged side by side on the fixed plate, a strip hole is opened on the mobile frame, all the scraping mechanisms can penetrate to the lower side of the mobile frame, and a driving mechanism for driving all the scraping mechanisms to rotate is arranged on the fixed plate, and the scraping mechanism can scrape the markings on the potholes of the road surface;

[0007] The movable frame is connected with a grinding mechanism, and the grinding mechanism can grind and clean the markings on the road surface. The upper end surface of the movable frame is provided with a filter box, and the filter box is connected with an air pump, and the air pump is connected with the grinding mechanism. A guide component is provided between the filter box and all the scraping mechanisms, and an electric heating sleeve is provided on the guide component. Under the drive of the filter box, hot air can flow out from the lower end of the scraping mechanism, and the hot air drives the floating dust and exhaust gas to be sucked into the filter box from the lower end surface of the grinding mechanism for filtration and collection;

[0008] The front end of the moving frame is provided with an angular baffle, and the lower end surface of the moving frame is provided with a rubber sleeve along the four sides.

[0009] Further technical solution: the scraping mechanism includes a rotating sleeve, a vertical rod, a knife disc, an elastic component and a trimming component;

[0010] The rotating sleeve is rotatably connected to the fixed plate, a vertical rod is vertically slidably connected to the rotating sleeve, a cutter disc is fixedly connected to the lower end of the vertical rod, a plurality of scrapers are arranged at the bottom of the cutter disc, an elastic component is arranged between the vertical rod and the rotating sleeve, a trimming component is arranged at the lower part of the rotating sleeve, the trimming component is in elastic contact with the cutter disc, and the driving mechanism can drive all the rotating sleeves to rotate.

[0011] Further technical solution: the elastic component includes a boss, a No. 1 spring and an electric telescopic sleeve;

[0012] A boss is vertically slidably connected in the rotating sleeve, a No. 1 spring is arranged on both sides of the rotating sleeve, an electric telescopic sleeve is fixedly arranged on the top surface of the rotating sleeve, and the telescopic end of the electric telescopic sleeve is in elastic contact with a No. 1 spring.

[0013] Further technical solution: the trimming assembly includes a conical head, a No. 2 spring and a spring stop seat;

[0014] A conical head is vertically slidably connected along the length direction of the vertical rod, and the vertical rod is threadedly connected to a spring stop seat. A No. 2 spring is elastically squeezed between the spring stop seat and the conical head. The conical head is in contact with the cutter disc, the conical head is conical, and a plurality of grinding racks are arranged on the side of the conical head.

[0015] Further technical solution: the driving mechanism includes a No. 1 motor, a driving wheel and a transmission wheel;

[0016] The No. 1 motor is fixedly connected to the fixed plate, the output shaft of the No. 1 motor is fixedly connected to the driving wheel, the upper end of the rotating sleeve is fixedly connected to the transmission wheel, two adjacent transmission wheels are meshed, and one of the transmission wheels is meshed with the driving wheel.

[0017] Further technical solution: the flow guide assembly includes a connecting sleeve and a multi-pass sleeve, the upper ends of the vertical rods are rotatably connected to the connecting sleeves, the fixed plate is fixedly connected to a plurality of guide frames, each connecting sleeve passes through a guide frame, and the connecting sleeve and the guide frame are vertically slidably connected, the multi-pass sleeve is vertically slidably connected to all the connecting sleeves, an electric heating sleeve is provided on the multi-pass sleeve, and the multi-pass sleeve is connected to the filter box.

[0018] Further technical solution: the grinding mechanism includes a second motor, an electric sleeve, a gear transmission pair and a grinding disc;

[0019] The No. 2 motor is fixedly connected to the upper end surface of the movable frame, the electric sleeve is rotatably connected to the movable frame, a gear transmission pair is transmission-connected between the output shaft of the No. 2 motor and the electric sleeve, the electric sleeve is fixedly connected to a grinding disc, the grinding disc is connected to the outside, the grinding disc is connected to the electric sleeve and the air pump in turn, and a plurality of grinding strips are arranged at the bottom of the grinding disc.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When encountering a pothole, the cutter disc contacts the bottom of the pothole under the elastic force of the elastic component, thereby cleaning the marking line at the bottom of the pothole. At this time, the trimming component elastically contacts the side wall of the pothole, thereby scraping off the marking line on the side wall of the pothole;

[0022] 2. The No. 2 motor drives the electric sleeve to rotate through the gear transmission pair, and the electric sleeve drives the grinding disc to grind and clean the road markings, thereby performing a secondary grinding to remove the remaining road markings; the cutter disc can further clean the gravel and soil stuck to the road surface, thereby making the grinding mechanism fit the road surface better and improving the grinding effect of the grinding mechanism;

[0023] 3. When the scraping mechanism scrapes the road markings, the filter box pumps air, and the electric heating sleeve heats the air. Under the guidance of the guide component, the high-temperature air heats the road markings through the scraping mechanism, so that the road markings dry and fall off. Then the grinding mechanism filters and collects the dust and exhaust gas from the grinding into the filter box;

[0024] 4. Hot air circulates at the bottom of the mobile frame, thereby accelerating the detachment of the road markings. The angle baffle and the rubber sleeve form a relatively closed space at the bottom of the mobile frame, which improves the insulation effect of the hot air at the bottom of the mobile frame; further, the cutter head can extend to the bottom of the pothole, and the conical head can contact the side wall of the pothole to scrape off the markings on the side wall of the pothole; at the same time, the conical head can increase the air pressure in the pothole at the upper part, and the hot air is discharged from the gap of the grinding rack, so that the dust in the pothole can be discharged more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the bottom structure of the mobile frame in the present invention.

[0027] Figure 3 It is a schematic diagram of the connection between the driving mechanism and the scraper in the present invention.

[0028] Figure 4It is a structural schematic diagram of the scraping mechanism in the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the elastic component in the present invention.

[0030] Figure 6 It is a schematic structural diagram of the trimming assembly in the present invention.

[0031] Figure 7 It is a structural schematic diagram of the grinding mechanism in the present invention.

[0032] In the attached drawings: 1. movable frame; 2. lifting seat; 3. fixed plate; 4. scraping mechanism; 41. rotating sleeve; 42. vertical rod; 43. knife disc; 44. elastic component; 441. boss; 442. spring No. 1; 443. electric telescopic sleeve; 45. trimming component; 451. conical head; 452. spring No. 2; 453. spring stop seat; 5. driving mechanism; 51. motor No. 1; 52. driving wheel; 53. transmission wheel; 6. flow guide component; 61. connecting sleeve; 62. multi-pass sleeve; 7. filter box; 8. grinding mechanism; 81. motor No. 2; 82. electric sleeve; 83. gear transmission pair; 84. grinding disc; 9. angle baffle; 10. rubber sleeve; 11. electric heating sleeve; 12. air pump; 13. guide frame; 14. strip hole. DETAILED DESCRIPTION

[0033] 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.

[0034] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0035] like Figure 1-Figure 7 As shown, a road marking line removing device provided by the present invention comprises a mobile frame 1, the upper end surface of the mobile frame 1 is fixedly connected with a lifting seat 2, the telescopic part of the lifting seat 2 is fixedly connected with a fixing plate 3, a plurality of scraping mechanisms 4 are arranged side by side on the fixing plate 3, a strip hole 14 is opened on the mobile frame 1, all the scraping mechanisms 4 can penetrate to the lower side of the mobile frame 1, and a driving mechanism 5 for driving all the scraping mechanisms 4 to rotate is arranged on the fixing plate 3, and the scraping mechanisms 4 can scrape the marking lines at the potholes on the road surface;

[0036] The mobile frame 1 is connected with a grinding mechanism 8, and the grinding mechanism 8 can grind and clean the markings on the road surface. The upper end surface of the mobile frame 1 is provided with a filter box 7, and the filter box 7 is connected with an air pump 12, and the air pump 12 is connected with the grinding mechanism 8. A guide component 6 is provided between the filter box 7 and all the scraping mechanisms 4, and an electric heating sleeve 11 is provided on the guide component 6. Under the drive of the filter box 7, hot air can flow out from the lower end of the scraping mechanism 4, and the hot air drives the floating dust and exhaust gas to be sucked from the lower end surface of the grinding mechanism 8 into the filter box 7 for filtration and collection;

[0037] An angular baffle 9 is provided at the front end of the moving frame 1 , and a rubber sleeve 10 is provided around the lower end surface of the moving frame 1 .

[0038] In this embodiment, the mobile frame 1 is pushed forward along the road markings. During this process, the angular baffles 9 clean the gravel garbage on the road surface to both sides. At the bottom of the mobile frame 1, multiple scraping mechanisms 4 are in elastic contact with the road surface at the same time. The scraping mechanisms 4 scrape the road markings. When encountering potholes, the scraping mechanisms 4 can extend into the potholes to clean the markings inside them.

[0039] Afterwards, the grinding mechanism 8 can perform secondary grinding and cleaning of the markings on the road surface, thereby performing secondary grinding and removing the markings remaining on the road surface; the scraping mechanism 4 can further clean the gravel and soil stuck to the road surface, thereby making the grinding mechanism 8 more closely attached to the road surface and improving the grinding effect of the grinding mechanism 8;

[0040] When the scraping mechanism 4 scrapes the road markings, the filter box 7 pumps air, and the electric heating sleeve 11 heats the air. Under the guidance of the guide assembly 6, the high-temperature air passes through the scraping mechanism 4 to heat the road markings, so that the road markings are dried and fall off. Then, the grinding mechanism 8 can perform secondary grinding and cleaning on the road markings. At the same time, the grinding mechanism 8 filters and collects the dust and exhaust gas from the grinding into the filter box 7.

[0041] The hot air circulates at the bottom of the mobile frame 1 through the filter box 7, thereby accelerating the detachment of the road markings. The angle baffle 9 and the rubber sleeve 10 form a relatively closed space at the bottom of the mobile frame 1, thereby improving the heat preservation effect of the hot air at the bottom of the mobile frame 1. When the scraping mechanism 4 cleans the potholes on the road surface, the hot air can blow the dust and impurities in the potholes upward to avoid dust accumulation in the potholes on the road surface.

[0042] like Figure 4 As shown, a road marking removal device provided by the present invention is provided, wherein the scraping mechanism 4 comprises a rotating sleeve 41, a vertical rod 42, a knife disc 43, an elastic component 44 and a trimming component 45;

[0043] The rotating sleeve 41 is rotatably connected to the fixed plate 3, a vertical rod 42 is vertically slidably connected to the rotating sleeve 41, a cutter disc 43 is fixedly connected to the lower end of the vertical rod 42, a plurality of scrapers are arranged at the bottom of the cutter disc 43, an elastic component 44 is arranged between the vertical rod 42 and the rotating sleeve 41, a trimming component 45 is arranged at the lower part of the rotating sleeve 41, and the trimming component 45 is in elastic contact with the cutter disc 43, and the driving mechanism 5 can drive all the rotating sleeves 41 to rotate.

[0044] In this embodiment, under the action of the elastic component 44, the vertical rod 42 drives the cutter disc 43 to elastically contact the road surface, and at the same time, the driving mechanism 5 drives all the rotating sleeves 41 to rotate, and all the rotating sleeves 41 drive all the vertical rods 42 to rotate synchronously, and all the vertical rods 42 drive all the cutter discs 43 to scrape the markings on the road surface;

[0045] When encountering a pothole, under the elastic force of the elastic component 44, the cutter disc 43 contacts the bottom of the pothole, thereby cleaning the marking line at the bottom of the pothole. At this time, the trimming component 45 elastically contacts the side wall of the pothole, thereby scraping off the marking line on the side wall of the pothole.

[0046] like Figure 5 As shown, a road marking removal device provided by the present invention is provided, wherein the elastic component 44 includes a boss 441, a No. 1 spring 442 and an electric telescopic sleeve 443;

[0047] A boss 441 is vertically slidably connected to the rotating sleeve 41 , and a No. 1 spring 442 is provided on both sides of the rotating sleeve 41 . An electric telescopic sleeve 443 is fixedly provided on the top surface of the rotating sleeve 41 , and the telescopic end of the electric telescopic sleeve 443 is in elastic contact with a No. 1 spring 442 .

[0048] In this embodiment, the No. 1 spring 442 elastically limits the vertical rod 42 by pushing the boss 441, and the vertical rod 42 drives the cutter disc 43 to elastically contact the road surface. The electric telescopic sleeve 443 is activated to extend and retract, so that the squeezing force between the cutter disc 43 and the road surface can be adjusted.

[0049] like Figure 6 As shown, a road marking removal device provided by the present invention is provided, wherein the trimming assembly 45 comprises a conical head 451, a second spring 452 and a spring stop seat 453;

[0050] A conical head 451 is vertically slidably connected along the length direction of the vertical rod 42, and the vertical rod 42 is threadedly connected to a spring stop seat 453. A No. 2 spring 452 is elastically squeezed between the spring stop seat 453 and the conical head 451. The conical head 451 is in contact with the cutter disc 43, and the conical head 451 is conical, and a plurality of grinding racks are arranged on the side of the conical head 451.

[0051] In this embodiment, the cutter disc 43 can extend to the bottom of the pit, and the conical head 451 can contact the side wall of the pit, thereby scraping off the markings on the side wall of the pit; at the same time, the conical head 451 can increase the air pressure in the pit at the upper part of the pit, and the hot air is discharged from the gap of the grinding rack, so that the dust in the pit can be discharged more fully.

[0052] like Figure 3 As shown, a road marking removal device provided by the present invention is provided, wherein the driving mechanism 5 includes a first motor 51, a driving wheel 52 and a transmission wheel 53;

[0053] The No. 1 motor 51 is fixedly connected to the fixed plate 3 , the output shaft of the No. 1 motor 51 is fixedly connected to the driving wheel 52 , the upper end of the rotating sleeve 41 is fixedly connected to a transmission wheel 53 , two adjacent transmission wheels 53 are meshed with each other, and one of the transmission wheels 53 is meshed with the driving wheel 52 .

[0054] In this embodiment, the No. 1 motor 51 is started, and the No. 1 motor 51 can drive the driving wheel 52 to rotate. The driving wheel 52 can drive a transmission wheel 53 to rotate through meshing. Two adjacent transmission wheels 53 are meshed, so that all transmission wheels 53 drive all rotating sleeves 41 to rotate simultaneously.

[0055] like Figure 3 As shown, a road marking line removing device provided by the present invention is provided, the guide assembly 6 includes a connecting sleeve 61 and a multi-pass sleeve 62, the upper end of the vertical rod 42 is rotatably connected with the connecting sleeve 61, the fixed plate 3 is fixedly connected with a plurality of guide frames 13, each connecting sleeve 61 passes through a guide frame 13, and the connecting sleeve 61 is vertically slidably connected to the guide frame 13, the multi-pass sleeve 62 is vertically slidably connected to all the connecting sleeves 61, the multi-pass sleeve 62 is provided with an electric heating sleeve 11, and the multi-pass sleeve 62 is connected to the filter box 7.

[0056] In this embodiment, the filter box 7 introduces airflow into the multi-pass sleeve 62, the electric heating sleeve 11 heats the airflow in the multi-pass sleeve 62, and then the hot air flow is introduced into each vertical rod 42 through the connecting sleeve 61, and then the hot air is ejected from the lower part of the cutter disc 43, thereby accelerating the shedding of the road marking.

[0057] like Figure 7 As shown, a road marking removal device provided by the present invention is provided, wherein the grinding mechanism 8 includes a second motor 81, an electric sleeve 82, a gear transmission pair 83 and a grinding disc 84;

[0058] The No. 2 motor 81 is fixedly connected to the upper end surface of the mobile frame 1, the electric sleeve 82 is rotatably connected to the mobile frame 1, a gear transmission pair 83 is transmission-connected between the output shaft of the No. 2 motor 81 and the electric sleeve 82, the electric sleeve 82 is fixedly connected to a grinding disc 84, the grinding disc 84 is connected to the outside, the grinding disc 84 is connected to the electric sleeve 82 and the air pump 12 in turn, and a plurality of grinding strips are arranged at the bottom of the grinding disc 84.

[0059] In this embodiment, the No. 2 motor 81 is started, and the No. 2 motor 81 drives the electric sleeve 82 to rotate through the gear transmission pair 83. The electric sleeve 82 drives the grinding disc 84 to grind and clean the road markings. At the same time, the grinding disc 84 can absorb the dust and exhaust gas generated by grinding, thereby preventing the dust and exhaust gas generated by grinding from diffusing into the external air.

[0060] Working principle:

[0061] The mobile frame 1 is pushed forward along the road markings. During this process, the angular baffles 9 clear the gravel garbage on the road surface to both sides. At the bottom of the mobile frame 1, under the action of the elastic component 44, the vertical rod 42 drives the cutter disc 43 to elastically contact the road surface. At the same time, the driving mechanism 5 drives all the rotating sleeves 41 to rotate, and all the rotating sleeves 41 drive all the vertical rods 42 to rotate synchronously, and all the vertical rods 42 drive all the cutter discs 43 to scrape the road markings.

[0062] When encountering a pothole, under the elastic force of the elastic component 44, the cutter disc 43 contacts the bottom of the pothole, thereby cleaning the marking line at the bottom of the pothole, and the trimming component 45 elastically contacts the side wall of the pothole, thereby scraping off the marking line on the side wall of the pothole;

[0063] Afterwards, the second motor 81 drives the electric sleeve 82 to rotate through the gear transmission pair 83, and the electric sleeve 82 drives the grinding disc 84 to grind and clean the road markings, thereby performing a secondary grinding to remove the road markings remaining on the road; the cutter disc 43 can further clean the gravel and soil stuck on the road surface, thereby making the grinding mechanism 8 more closely attached to the road surface and improving the grinding effect of the grinding mechanism 8;

[0064] When the scraping mechanism 4 scrapes the road markings, the filter box 7 pumps air, and the electric heating sleeve 11 heats the air. Under the guidance of the guide assembly 6, the high-temperature air passes through the scraping mechanism 4 to heat the road markings, so that the road markings are dried and fall off. Then, the grinding mechanism 8 filters and collects the dust and exhaust gas from the grinding into the filter box 7.

[0065] The hot air circulates at the bottom of the mobile frame 1, thereby accelerating the detachment of the road markings. The angle baffle 9 and the rubber sleeve 10 form a relatively closed space at the bottom of the mobile frame 1, thereby improving the insulation effect of the hot air at the bottom of the mobile frame 1; further, the knife disc 43 can extend to the bottom of the pothole, and at this time the conical head 451 can contact the side wall of the pothole, thereby scraping off the markings on the side wall of the pothole; at the same time, the conical head 451 can increase the air pressure in the pothole at the upper part, and the hot air is discharged from the gap of the grinding rack, so that the dust in the pothole is more fully discharged.

[0066] 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.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A road marking removal device, comprising a mobile frame (1), the upper end surface of the mobile frame (1) being fixedly connected to a lifting seat (2), the telescopic portion of the lifting seat (2) being fixedly connected to a fixed plate (3), characterized in that: A plurality of scraping mechanisms (4) are arranged side by side on the fixed plate (3), a strip-shaped hole (14) is provided on the movable frame (1), all the scraping mechanisms (4) can penetrate to the lower side of the movable frame (1), and a driving mechanism (5) is provided on the fixed plate (3) for driving all the scraping mechanisms (4) to rotate, and the scraping mechanisms (4) can scrape the markings on potholes on the road surface; The movable frame (1) is connected to a grinding mechanism (8), and the grinding mechanism (8) can grind and clean the markings on the road surface. The upper end surface of the movable frame (1) is provided with a filter box (7), and the filter box (7) is connected to an air pump (12), and the air pump (12) is connected to the grinding mechanism (8). A guide component (6) is provided between the filter box (7) and all the scraping mechanisms (4), and an electric heating sleeve (11) is provided on the guide component (6). Under the drive of the filter box (7), hot air can flow out from the lower end of the scraping mechanism (4), and the hot air drives the floating dust and exhaust gas to be sucked from the lower end surface of the grinding mechanism (8) into the filter box (7) for filtration and collection; The front end of the mobile frame (1) is provided with an angular baffle (9), and the lower end surface of the mobile frame (1) is provided with a rubber sleeve (10) along the periphery; The scraping mechanism (4) comprises a rotating sleeve (41), a vertical rod (42), a knife disc (43), an elastic component (44) and a trimming component (45); the rotating sleeve (41) is rotatably connected to the fixed plate (3); the rotating sleeve (41) is vertically slidably connected to the vertical rod (42); the lower end of the vertical rod (42) is fixedly connected to the knife disc (43); a plurality of scrapers are arranged at the bottom of the knife disc (43); an elastic component (44) is arranged between the vertical rod (42) and the rotating sleeve (41); the lower part of the rotating sleeve (41) is provided with a trimming component (45); the trimming component (45) is in elastic contact with the knife disc (43); and the driving mechanism (5) can drive all the rotating sleeves (41) to rotate; The trimming assembly (45) comprises a conical head (451), a No. 2 spring (452) and a spring stop seat (453); the conical head (451) is vertically slidably connected along the length direction of the vertical rod (42); the vertical rod (42) is threadedly connected to the spring stop seat (453); a No. 2 spring (452) is elastically squeezed between the spring stop seat (453) and the conical head (451); the conical head (451) is in contact with the cutter disc (43); the conical head (451) is conical, and a plurality of grinding racks are arranged on the side of the conical head (451).

2. The road marking removal device according to claim 1, characterized in that: The elastic component (44) comprises a boss (441), a No. 1 spring (442), and an electric telescopic sleeve (443); A boss (441) is vertically slidably connected to the rotating sleeve (41), a No. 1 spring (442) is provided on both sides of the rotating sleeve (41), an electric telescopic sleeve (443) is fixedly provided on the top surface of the rotating sleeve (41), and the telescopic end of the electric telescopic sleeve (443) is in elastic contact with a No. 1 spring (442).

3. The road marking removal device according to claim 1, characterized in that: The driving mechanism (5) comprises a first motor (51), a driving wheel (52) and a transmission wheel (53); The first motor (51) is fixedly connected to the fixed plate (3); the output shaft of the first motor (51) is fixedly connected to a driving wheel (52); the upper end of the rotating sleeve (41) is fixedly connected to a transmission wheel (53); two adjacent transmission wheels (53) are meshed with each other, and one of the transmission wheels (53) is meshed with the driving wheel (52).

4. The road marking removal device according to claim 1, characterized in that: The flow guide assembly (6) comprises a connecting sleeve (61) and a multi-pass sleeve (62); the upper ends of the vertical rods (42) are rotatably connected to the connecting sleeves (61); the fixed plate (3) is fixedly connected to a plurality of guide frames (13); each connecting sleeve (61) passes through a guide frame (13); the connecting sleeve (61) and the guide frame (13) are vertically slidably connected; the multi-pass sleeve (62) and all the connecting sleeves (61) are vertically slidably connected; an electric heating sleeve (11) is sleeved on the multi-pass sleeve (62); and the multi-pass sleeve (62) is in communication with the filter box (7).

5. The road marking removal device according to claim 1, characterized in that: The grinding mechanism (8) comprises a second motor (81), an electric sleeve (82), a gear transmission pair (83) and a grinding disc (84); The second motor (81) is fixedly connected to the upper end surface of the movable frame (1); the electric sleeve (82) is rotatably connected to the movable frame (1); a gear transmission pair (83) is transmission-connected between the output shaft of the second motor (81) and the electric sleeve (82); the electric sleeve (82) is fixedly connected to a grinding disc (84); the grinding disc (84) is connected to the outside; the grinding disc (84) is sequentially connected to the electric sleeve (82) and the air pump (12); and a plurality of grinding strips are arranged at the bottom of the grinding disc (84).

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