Road marking device with automatic distance measuring function

By using an ultrasonic rangefinder and a motor-driven adjustment device, the applicability of road marking machines in narrow road conditions has been solved, enabling automatic distance measurement and line spacing adjustment, thus improving the quality of line marking.

CN223496992UActive Publication Date: 2025-10-31CHINA RAILWAY FIRST GRP ELECTRICAL SERVICE ENG CO LTD +3
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Patent Information

Application Number
CN202422891720.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-10-31
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

The existing road marking machines have excessively wide support frames when not in use, making it inconvenient to mark lines on narrow roads.

Method used

An ultrasonic rangefinder is used to measure the distance between the vehicle frame and the curb. The spacing of the marking nozzles is adjusted by a motor-driven gear and threaded rod. A sweeping device is also provided to clean up dust and stones on the road surface, thus achieving automatic distance measurement and marking spacing adjustment.

Benefits of technology

It enables automatic adjustment of line spacing under different road conditions, improving the quality and applicability of line marking. The sweeping device ensures road surface cleanliness and enhances the line marking effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of highway marking, in particular to a highway marking device with an automatic distance measuring function, an adjusting device comprises a hose, an ultrasonic distance measuring instrument is fixedly installed on the surface of one side of a frame, a groove is formed in the surface of the frame, and a threaded rod is rotationally connected between the inner walls of the two ends of the groove; a first gear is fixedly mounted on the surface of the threaded rod, two sliding grooves are formed in the surfaces of the two sides of the groove, two sliding strip plates are in threaded connection with the surface of the threaded rod, L-shaped rods are fixedly mounted on the surfaces of the sliding strip plates, lantern rings are fixedly mounted at the ends, away from the sliding strip plates, of the L-shaped rods, and a marking nozzle is fixedly mounted at the end, away from the coating box, of the hose in a manner of penetrating through the lantern rings. According to the road marking machine, the problems that a certain width is needed when the road marking machine is not used due to the fact that a supporting frame of an existing road marking machine extends to the two sides from a marking machine shell, and marking is inconvenient when some narrow road conditions are met are solved.
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Description

Technical Field

[0001] This utility model relates to the field of highway marking technology, and in particular to a highway marking device with automatic distance measurement function. Background Technology

[0002] Road marking machines are used to map road traffic safety signs such as zebra crossings, sidewalks, and lane markings on highways and roads.

[0003] A road marking machine with the existing announcement number CN218880551U uses a blower head to spray high-pressure gas to blow away dust on the road surface, improving the quality of the marking. It also uses two sets of marking nozzles to draw two parallel lines simultaneously, improving the marking efficiency.

[0004] The inventor discovered in his daily work that the support frame of the aforementioned road marking machine extends from the machine's outer shell to both sides, which requires a certain width even when not in use. This makes marking inconvenient when encountering narrow road conditions. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problems mentioned above by proposing a road marking device with automatic distance measurement function.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a road marking device with automatic distance measurement function, comprising a frame, four pulleys fixedly installed on the bottom surface of the frame, a handrail fixedly installed on the side of the frame, two support rods fixedly installed on the surface of the frame, a paint tank fixedly installed between the two support rods, extraction pumps fixedly installed on both sides of the paint tank, an extraction pipe fixedly installed at the input end of the extraction pump, the end of the extraction pipe away from the extraction pump communicating with the paint tank, a discharge pipe fixedly installed at the output end of the extraction pump, adjusting devices provided on both sides of the paint tank, the adjusting devices including flexible hoses fixedly installed on both sides of the paint tank, the end of the discharge pipe away from the extraction pump communicating with the flexible hoses, an ultrasonic rangefinder fixedly installed on one side of the frame, a groove formed on the surface of the frame, a threaded rod rotatably connected between the inner walls of the two ends of the groove, a first gear fixedly installed on the surface of the threaded rod, the threads on the surface of the threaded rod being mutually opposite threads centered on the first gear. The first gear serves to drive the threaded rod to rotate.

[0007] Preferably, two sliding grooves are formed on both sides of the groove, and two sliding plates are threadedly connected to the surface of the threaded rod. An L-shaped rod is fixedly installed on the surface of the sliding plate, and a collar is fixedly installed at the end of the L-shaped rod away from the sliding plate. The scribing nozzle is fixedly installed through the collar at the end of the hose away from the paint tank. The threaded rod serves to move the sliding plates inside the sliding groove.

[0008] Preferably, the surface of the frame has a notch, and the notch and the groove are interconnected. A first motor is fixedly installed on the inner wall surface of one side of the notch, and a second gear is fixedly installed on the output end of the first motor. The first gear and the second gear mesh with each other, and the first motor is electrically connected to the ultrasonic rangefinder. The first motor drives the second gear to rotate, and the second gear drives the first gear to rotate.

[0009] Preferably, both annular sidewall surfaces of the collars are provided with cleaning devices. Each cleaning device includes an L-shaped support rod, which is fixedly installed on the annular sidewall surface of the collar. A slip ring is slidably connected to the vertical end of the L-shaped support rod, and a bolt is threaded onto the annular sidewall surface of the slip ring. Multiple threaded holes are evenly distributed on the vertical end of the L-shaped support rod. The bolts and threaded holes effectively restrict the position of the slip ring on the surface of the L-shaped support rod.

[0010] Preferably, an L-shaped connecting rod is fixedly installed on the annular sidewall of the slip ring, and a U-shaped bracket is fixedly installed on the end of the L-shaped connecting rod away from the slip ring. The L-shaped connecting rod serves to support the U-shaped bracket.

[0011] Preferably, a rotating shaft is rotatably connected between the inner walls of both sides of the U-shaped bracket, and a roller brush is fixedly installed on the outer surface of the rotating shaft. A second motor is fixedly installed on one side surface of the U-shaped bracket, and the output end of the second motor is fixedly connected to the rotating shaft. The roller brush effectively cleans dust and pebbles from the road surface.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting an adjustment device, when the device is needed, first push the handlebar and pulley to move the frame to a suitable position, then turn on the ultrasonic rangefinder to measure the actual distance between the side of the frame and the curb. The first motor receives the signal from the ultrasonic rangefinder and then starts working. The first motor drives the second gear to rotate, and the second gear meshes with the first gear, causing the first gear to rotate. The rotation of the first gear drives the threaded rod to rotate. Since the threads on the surface of the threaded rod are opposite to each other with the first gear as the center, when the first gear drives the threaded rod to rotate, the two sliding plates connected by the threads on its surface will move away from or towards each other inside the groove. The movement of the two sliding plates away from or towards each other inside the groove drives the two L-shaped... The two L-shaped rods move apart or closer to each other, which in turn moves the two collars apart or closer to each other. This movement of the collars in turn moves the two hoses and the marking nozzles apart or closer to each other. When the two marking nozzles reach a suitable distance, the first motor shuts off, and then the extraction pump starts. The extraction pump uses the extraction pipe to transport the paint from the paint tank into the discharge pipe, then from the discharge pipe into the hose, and finally from the hose into the marking nozzle, completing the marking operation. Through the coordination of the above structures, the distance between the two marking nozzles can be adjusted, thereby adjusting the marking distance and making the device suitable for different road conditions.

[0014] 2. In this utility model, by setting up a cleaning device, when the road surface needs to be cleaned before re-marking lines, first loosen the bolts and unscrew them from the inside of the threaded holes. The separation of the bolts and threaded holes causes the slip ring to lose its limit on the surface of the L-shaped support rod. At this time, the slip ring can be moved. The movement of the slip ring drives the movement of the L-shaped connecting rod, which in turn drives the movement of the U-shaped bracket. The movement of the U-shaped bracket drives the movement of the roller brush. When the roller brush moves to a position that is in contact with the road surface, the bolts are screwed back into the corresponding threaded holes to fix the slip ring in its current position on the L-shaped support rod. Then, the second motor is started, which drives the rotating shaft to rotate. The rotation of the rotating shaft drives the roller brush to rotate, and the roller brush cleans the road surface, sweeping away dust, stones, and other objects from the area to be marked. Through the cooperation of the above structures, the purpose of cleaning dust and stones on the road surface is achieved, thereby improving the marking quality of the device. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a road marking device with automatic distance measurement function;

[0016] Figure 2This utility model provides a cross-sectional structural diagram of a highway marking device with automatic distance measurement function;

[0017] Figure 3 This utility model proposes a road marking device with automatic distance measurement function. Figure 1 Schematic diagram of the structure at point A;

[0018] Figure 4 This utility model proposes a road marking device with automatic distance measurement function. Figure 2 Schematic diagram of the structure at point B;

[0019] Legend:

[0020] 1. Frame; 2. Pulley; 3. Handrail; 4. Adjustment device; 401. Hose; 402. Marking nozzle; 403. Ultrasonic rangefinder; 404. Groove; 405. Threaded rod; 406. First gear; 407. Slide groove; 408. Slide plate; 409. L-shaped rod; 410. Collar; 411. Notch; 412. First motor; 413. Second gear; 5. Cleaning device; 51. L-shaped support rod; 52. Slip ring; 53. Bolt; 54. Threaded hole; 55. L-shaped connecting rod; 56. U-shaped bracket; 57. Rotating shaft; 58. Roller brush; 59. Second motor; 6. Support rod; 7. Paint tank; 8. Extraction pump; 9. Discharge pipe; 10. Extraction pipe. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a road marking device with automatic distance measurement function, including a frame 1, four pulleys 2 fixedly installed on the bottom surface of the frame 1, a handrail 3 fixedly installed on the side of the frame 1, two support rods 6 fixedly installed on the surface of the frame 1, a paint tank 7 fixedly installed between the two support rods 6, a pump 8 fixedly installed on both sides of the paint tank 7, a pump pipe 10 fixedly installed at the input end of the pump 8, the end of the pump pipe 10 away from the pump 8 is connected to the paint tank 7, and a discharge pipe 9 fixedly installed at the output end of the pump 8.

[0024] The specific settings and functions of the adjustment device 4 and the cleaning device 5 will be explained in detail below.

[0025] In this embodiment: both sides of the paint tank 7 are provided with adjustment devices 4. The adjustment devices 4 include hoses 401, which are fixedly installed on both sides of the paint tank 7. The end of the discharge pipe 9 away from the extraction pump 8 is connected to the hose 401. An ultrasonic rangefinder 403 is fixedly installed on one side of the frame 1. A groove 404 is opened on the surface of the frame 1. A threaded rod 405 is rotatably connected between the inner walls of the two ends of the groove 404. A first gear 406 is fixedly installed on the surface of the threaded rod 405. The threads on the surface of the threaded rod 405 are opposite threads with the first gear 406 as the center.

[0026] In this embodiment, the first gear 406 is designed to drive the threaded rod 405 to rotate.

[0027] Specifically, two grooves 407 are provided on both sides of the groove 404, and two sliding plates 408 are threadedly connected to the surface of the threaded rod 405. An L-shaped rod 409 is fixedly installed on the surface of the sliding plate 408. A collar 410 is fixedly installed at the end of the L-shaped rod 409 away from the sliding plate 408. A marking nozzle 402 is fixedly installed through the collar 410 at the end of the hose 401 away from the paint box 7.

[0028] In this embodiment, the threaded rod 405 serves to drive the slide plate 408 to move inside the slide groove 407.

[0029] Specifically, a notch 411 is formed on the surface of the frame 1, and the notch 411 and the groove 404 are interconnected. A first motor 412 is fixedly installed on the inner wall of one side of the notch 411, and a second gear 413 is fixedly installed on the output end of the first motor 412. The first gear 406 and the second gear 413 mesh with each other, and the first motor 412 is electrically connected to the ultrasonic rangefinder 403. The first motor 412 drives the second gear 413 to rotate, and the second gear 413 drives the first gear 406 to rotate.

[0030] In this embodiment: a cleaning device 5 is provided on the annular sidewall surface of both collars 410. The cleaning device 5 includes an L-shaped support rod 51. The L-shaped support rod 51 is fixedly installed on the annular sidewall surface of the collar 410. A slip ring 52 is slidably connected to the surface of the vertical end of the L-shaped support rod 51. A bolt 53 is threadedly connected to the annular sidewall surface of the slip ring 52. A plurality of threaded holes 54 are evenly opened on the surface of the vertical end of the L-shaped support rod 51. Before re-marking lines, the road surface needs to be cleaned. First, loosen bolt 53 and unscrew it from the threaded hole 54. The separation of bolt 53 and threaded hole 54 causes slip ring 52 to lose its limit on the surface of L-shaped support rod 51. At this time, slip ring 52 can be moved. The movement of slip ring 52 drives L-shaped connecting rod 55 to move, which in turn drives U-shaped bracket 56 to move. The movement of U-shaped bracket 56 drives roller brush 58 to move. When the position of roller brush 58 is in contact with the road surface, screw bolt 53 back into the corresponding threaded hole 54 to fix the position of slip ring 52 on L-shaped support rod 51. Then, start the second motor 59. The start of the second motor 59 drives the rotating shaft 57 to rotate, which in turn drives roller brush 58 to rotate. The rotation of roller brush 58 cleans the road surface, sweeping away dust, stones, and other debris from the area to be marked. Through the cooperation of the above structures, the purpose of cleaning dust and stones on the road surface is achieved, thereby improving the marking quality of the device.

[0031] Specifically, an L-shaped connecting rod 55 is fixedly installed on the annular side wall of the slip ring 52, and a U-shaped bracket 56 is fixedly installed on the end of the L-shaped connecting rod 55 away from the slip ring 52.

[0032] In this embodiment, the L-shaped connecting rod 55 serves to support the U-shaped bracket 56.

[0033] Specifically, a rotating shaft 57 is rotatably connected between the inner walls of both sides of the U-shaped bracket 56, a roller brush 58 is fixedly installed on the outer surface of the rotating shaft 57, and a second motor 59 is fixedly installed on one side surface of the U-shaped bracket 56. The output end of the second motor 59 is fixedly connected to the rotating shaft 57.

[0034] In this embodiment, the roller brush 58 is used to clean dust and pebbles from the road surface.

[0035] Working Principle: By setting the adjustment device 4, when the device is needed, first push the handlebar 3 in conjunction with the pulley 2 to move the frame 1 to a suitable position. Then, turn on the ultrasonic rangefinder 403 to measure the actual distance between the side of the frame 1 and the curb. The first motor 412 receives the signal from the ultrasonic rangefinder 403 and then starts working. The first motor 412 drives the second gear 413 to rotate. The rotation of the second gear 413 meshes with the first gear 406, thereby causing the first gear 406 to rotate. The rotation of the first gear 406 drives the threaded rod 405 to rotate. Since the threads on the surface of the threaded rod 405 are opposite to each other with the first gear 406 as the center, when the first gear 406 drives the threaded rod 405 to rotate, the two sliding plates 408 connected by the threads on its surface will move away from or towards each other inside the groove 407. The two L-shaped rods 409 move away from or towards each other, which in turn moves the two collars 410 away from or towards each other. The movement of the collars 410 in turn moves the two hoses 401 and the marking nozzles 402 away from or towards each other. When the two marking nozzles 402 move to a suitable distance, the first motor 412 shuts off, and then the extraction pump 8 is started. The extraction pump 8 uses the extraction pipe 10 to transport the paint from the paint tank 7 into the discharge pipe 9, and then from the discharge pipe 9 into the hoses 401, and then from the hoses 401 into the marking nozzles 402, finally spraying out from the marking nozzles 402 to complete the marking operation. Through the cooperation of the above structures, the distance between the two marking nozzles 402 can be adjusted, thereby adjusting the marking distance and making the device suitable for different road conditions. Before re-marking lines, the road surface needs to be cleaned. First, loosen bolt 53 and unscrew it from the threaded hole 54. The separation of bolt 53 and threaded hole 54 causes slip ring 52 to lose its limit on the surface of L-shaped support rod 51. At this time, slip ring 52 can be moved. The movement of slip ring 52 drives L-shaped connecting rod 55 to move, which in turn drives U-shaped bracket 56 to move. The movement of U-shaped bracket 56 drives roller brush 58 to move. When the position of roller brush 58 is in contact with the road surface, screw bolt 53 back into the corresponding threaded hole 54 to fix the position of slip ring 52 on L-shaped support rod 51. Then, start the second motor 59. The start of the second motor 59 drives the rotating shaft 57 to rotate, which in turn drives roller brush 58 to rotate. The rotation of roller brush 58 cleans the road surface, sweeping away dust, stones, and other debris from the area to be marked. Through the cooperation of the above structures, the purpose of cleaning dust and stones on the road surface is achieved, thereby improving the marking quality of the device.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A road marking device with automatic distance measurement function, comprising a frame (1), four pulleys (2) fixedly installed on the bottom surface of the frame (1), a handrail (3) fixedly installed on the side of the frame (1), two support rods (6) fixedly installed on the surface of the frame (1), a paint tank (7) fixedly installed between the two support rods (6), a pump (8) fixedly installed on both sides of the paint tank (7), a pump (10) fixedly installed at the input end of the pump (8), the end of the pump (10) away from the pump (8) communicating with the paint tank (7), and a discharge pipe (9) fixedly installed at the output end of the pump (8), characterized in that: The paint tank (7) is provided with adjustment devices (4) on both sides of the surface. The adjustment device (4) includes a hose (401). The hose (401) is fixedly installed on both sides of the paint tank (7). The end of the discharge pipe (9) away from the pump (8) is connected to the hose (401). An ultrasonic rangefinder (403) is fixedly installed on one side of the frame (1). A groove (404) is opened on the surface of the frame (1). A threaded rod (405) is rotatably connected between the inner walls of the two ends of the groove (404). A first gear (406) is fixedly installed on the surface of the threaded rod (405). The threads on the surface of the threaded rod (405) are opposite to each other with the first gear (406) as the center.

2. The road marking device with automatic distance measurement function according to claim 1, characterized in that: Two sliding grooves (407) are provided on both sides of the groove (404). Two sliding plates (408) are threadedly connected to the surface of the threaded rod (405). An L-shaped rod (409) is fixedly installed on the surface of the sliding plate (408). A collar (410) is fixedly installed at the end of the L-shaped rod (409) away from the sliding plate (408). A marking nozzle (402) is fixedly installed at the end of the hose (401) away from the paint tank (7) through the collar (410).

3. The road marking device with automatic distance measurement function according to claim 2, characterized in that: The surface of the frame (1) has a notch (411) and a groove (404) are connected to each other. A first motor (412) is fixedly installed on the inner wall surface of one side of the notch (411). A second gear (413) is fixedly installed at the output end of the first motor (412). The first gear (406) and the second gear (413) mesh with each other. The first motor (412) and the ultrasonic rangefinder (403) are electrically connected.

4. A road marking device with automatic distance measurement function according to claim 3, characterized in that: Cleaning devices (5) are provided on the annular sidewall surfaces of both collars (410). The cleaning devices (5) include L-shaped support rods (51). The L-shaped support rods (51) are fixedly installed on the annular sidewall surfaces of the collars (410). A slip ring (52) is slidably connected to the vertical end of the L-shaped support rod (51). A bolt (53) is threadedly connected to the annular sidewall surface of the slip ring (52). Multiple threaded holes (54) are evenly opened on the vertical end of the L-shaped support rod (51).

5. A road marking device with automatic distance measurement function according to claim 4, characterized in that: An L-shaped connecting rod (55) is fixedly installed on the annular sidewall of the slip ring (52), and a U-shaped bracket (56) is fixedly installed on the end of the L-shaped connecting rod (55) away from the slip ring (52).

6. A road marking device with automatic distance measurement function according to claim 5, characterized in that: A rotating shaft (57) is rotatably connected between the inner walls of the two sides of the U-shaped bracket (56). A roller brush (58) is fixedly installed on the outer wall surface of the rotating shaft (57). A second motor (59) is fixedly installed on one side surface of the U-shaped bracket (56). The output end of the second motor (59) is fixedly connected to the rotating shaft (57).

Citation Information

Patent Citations

  • Road marking machine

    CN218880551U