Road marking spraying device

Abstract

The utility model relates to the technical field of road construction equipment, in particular to a road marking spraying device which comprises a spraying cart and a driving device arranged at the bottom of the spraying cart, and the driving device comprises a first motor, a second motor, a first roller, a second roller and a detection unit. The first motor and the second motor are arranged on the front side of the bottom of the spraying cart in a bilateral symmetry mode, and an output shaft of the first motor is sleeved with the first rolling wheel. The first motor and the second motor can drive the first rolling wheel and the second rolling wheel to rotate correspondingly, the first rolling wheel and the second rolling wheel rotate to drive the spraying cart to walk, and when deviation occurs, the first motor or the second motor can be finely adjusted to conduct automatic deviation correction; in the process, the first distance measuring radar and the second distance measuring radar are needed to measure the distance between the spraying cart and the two sides of the road, and the camera is used for shooting the spraying quality of the spraying cart and judging whether the advancing speed of the spraying cart is appropriate or not.

Description

Technical Field

[0001] This utility model relates to the field of road construction equipment technology, and in particular to a road marking spraying device. Background Technology

[0002] Road markings are signs on the road surface that use lines, arrows, text, vertical markings, raised pavement markers, and delineators to convey traffic information such as guidance, restrictions, and warnings to road users. Their function is to regulate and guide traffic. They can be used in conjunction with signs or used alone. Road traffic markings are mainly set on the road surface and require manual spraying with handheld spraying equipment. The general steps of spraying are: sweeping, spraying, cleaning, and protection. Existing spraying equipment is generally handheld tools or spraying carts. Due to limitations in paint and physical strength, operators need to be changed during the spraying process. This results in several operators being needed for the spraying process, which consumes a lot of manpower. Moreover, the construction of long markings takes a very long time and is inefficient. Therefore, there is an urgent need for a semi-automated, push-mounted marking cart to reduce manual labor. Utility Model Content

[0003] The purpose of this invention is to provide a road marking spraying device to solve the problems existing in the prior art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A road marking spraying device includes a spraying cart and a drive unit disposed at the bottom of the spraying cart. The drive unit includes a first motor, a second motor, a first roller, a second roller, and a detection unit. The first motor and the second motor are symmetrically arranged on the front side of the bottom of the spraying cart. The first roller is sleeved on the output shaft of the first motor, and the second roller is sleeved on the output shaft of the second motor. The first motor and the second motor are used to drive the first roller and the second roller to rotate, respectively. A rear wheel is disposed on the rear side of the bottom of the spraying cart. The detection unit includes a first ranging radar, a second ranging radar, and a camera. The first ranging radar is fixedly installed on the front left side of the spraying cart, the second ranging radar is fixedly installed on the front right side of the spraying cart, and the camera is fixedly installed on the rear side of the spraying cart.

[0006] By adopting the above technical solution, the first motor and the second motor can drive the first roller and the second roller to rotate respectively. The rotation of the first roller and the rotation of the roller drive the spray painting cart to move. When deviation occurs, the first motor or the second motor can be finely adjusted to automatically correct the deviation. In this process, the first ranging radar and the second ranging radar need to measure the distance between the spray painting cart and the sides of the road. The camera is used to capture the spraying quality of the spray painting cart and determine whether the travel speed of the spray painting cart is appropriate.

[0007] In a further embodiment, the rear traveling wheel includes an ear plate, a fixed plate, and a roller shaft. The fixed plate is fixedly installed at the bottom of the spraying cart, the ear plate is fixedly installed at the bottom of one side of the fixed plate, and a horizontally arranged rotating shaft is passed through the ear plate. The roller shaft is rotatably sleeved at the middle position of the rotating shaft.

[0008] In a further embodiment, a light source is provided at the rear bottom of the spray painting cart, and the light source is used to emit strong light to illuminate the road surface.

[0009] By adopting the above technical solution, it is easier for cameras to obtain information about road conditions at night.

[0010] In a further embodiment, a high-precision positioning sensor is provided on the top of the painting cart.

[0011] The above technical solution is used to assist in determining whether the trolley's travel route is correct.

[0012] In a further embodiment, the front bottom of the spray painting cart is provided with sweeping brooms arranged in a figure-eight shape.

[0013] The above technical solution is used to clean up debris on the spraying route, facilitating the spraying operation.

[0014] In a further embodiment, the top of the cleaning broom is provided with an air blowing hole.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. The first motor and the second motor can drive the first roller and the second roller to rotate respectively. The rotation of the first roller and the roller drives the spray painting cart to move. When deviation occurs, the first motor or the second motor can be finely adjusted for automatic correction. During this process, the first and second ranging radars need to measure the distance between the spray painting cart and the sides of the road. The camera is used to capture the spraying quality of the spray painting cart and determine whether the travel speed of the spray painting cart is appropriate. Attached Figure Description

[0017] Figure 1 This is a structural diagram provided in this application;

[0018] Figure 2 This is a structural schematic diagram of the rear walking wheel provided in this application;

[0019] In the diagram: 1. Spray painting cart; 2. Drive unit; 21. First motor; 22. Second motor; 23. First roller; 24. Second roller; 25. Detection unit; 3. Rear walking wheel. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0022] Example 1:

[0023] like Figures 1-2As shown, a road marking spraying device includes a spraying cart 1 and a drive unit 2 disposed at the bottom of the spraying cart 1. The drive unit 2 includes a first motor 21, a second motor 22, a first roller 23, a second roller 24, and a detection unit 25. The first motor 21 and the second motor 22 are symmetrically arranged on the front side of the bottom of the spraying cart 1. The first roller 23 is sleeved on the output shaft of the first motor 21, and the second roller 24 is sleeved on the output shaft of the second motor 22. The first motor 21 and the second motor 22 are used to drive the first roller 23 and the second roller 24 to rotate, respectively. A rear wheel 3 is disposed on the rear right side of the bottom of the spraying cart 1. The detection unit 25 includes a first ranging radar, a second ranging radar, and a camera. The first ranging radar is fixedly installed on the front left side of the spraying cart 1, the second ranging radar is fixedly installed on the front right side of the spraying cart 1, and the camera is fixedly installed on the front right side. Installed on the rear side of the spray painting cart 1, the rear traveling wheel 3 includes a lug plate, a fixed plate, and a roller shaft. The fixed plate is fixedly installed at the bottom of the spray painting cart 1, and the lug plate is fixedly installed on one side of the bottom of the fixed plate. A horizontally arranged rotating shaft is passed through the lug plate, and the roller shaft is rotatably sleeved in the middle position of the rotating shaft. A light source is set at the bottom rear side of the spray painting cart 1. The light source is used to emit strong light to illuminate the road surface, which is convenient for the camera to obtain the road surface conditions at night. Especially when working on urban roads at night, it is necessary to illuminate the road surface conditions with a light source. A high-precision positioning sensor is set on the top of the spray painting cart 1. A sweeping broom is set at the bottom front side of the spray painting cart 1 in a figure-eight shape. The top of the sweeping broom is set with an air blowing hole. When needed, the air blowing hole needs to be connected to a blower through an air pipe. Only one mounting position for the blower needs to be reserved on the spray painting cart. This device is optional.

[0024] Specific implementation process: The first motor and the second motor can drive the first roller and the second roller to rotate respectively. The rotation of the first roller and the second roller drive the spray painting cart to move. When deviation occurs, the first motor or the second motor can be finely adjusted for automatic correction. During this process, the first and second ranging radars need to measure the distance between the spray painting cart and the sides of the road. The camera is used to capture the spraying quality of the spray painting cart and judge whether the travel speed of the spray painting cart is appropriate. Because the spraying is automated after the spraying route is set, the road surface needs to be swept during this process. The octagonal brooms can divert the garbage on the route to both sides during the movement of the spray painting cart, which achieves the effect of cleaning the road surface.

[0025] In actual use, both the first and second motors are equipped with meter counters on their output shafts. The meter counters are used to record the number of rotations of the first and second motors. The reason why the distance between the first and second ranging radars is needed to measure the distance between the two sides of the road is that the road surface may have bumps or debris, which will reduce the actual travel distance of the first or second roller. When the road marking is painted, there are curbs on both sides of the road in urban streets, so the first and second ranging radars can be compared with the curbs for distance measurement. When the road marking is painted on highways or provincial roads, the roadbed boundary or safety guardrail on both sides of the road can be used as a reference for positioning.

[0026] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A road marking spraying device, comprising a spraying cart (1) and a drive device (2) disposed at the bottom of the spraying cart (1), characterized in that: The driving device (2) includes a first motor (21), a second motor (22), a first roller (23), a second roller (24), and a detection unit (25). The first motor (21) and the second motor (22) are symmetrically arranged on the front bottom of the painting cart (1). The first roller (23) is sleeved on the output shaft of the first motor (21), and the second roller (24) is sleeved on the output shaft of the second motor (22). The first motor (21) and the second motor (22) are used to drive the first roller (23) and the second roller (24) to rotate, respectively. The rear bottom of the painting cart (1) is provided with a rear walking wheel (3). The detection unit (25) includes a first ranging radar, a second ranging radar, and a camera. The first ranging radar is fixedly installed on the front left side of the painting cart (1), the second ranging radar is fixedly installed on the front right side of the painting cart (1), and the camera is fixedly installed on the rear side of the painting cart (1).

2. The road marking spraying device according to claim 1, characterized in that: The rear traveling wheel (3) includes an ear plate, a fixed plate and a roller shaft. The fixed plate is fixedly installed at the bottom of the spraying cart (1). The ear plate is fixedly installed at the bottom of one side of the fixed plate. A horizontally arranged rotating shaft is passed through the ear plate. The roller shaft is rotatably sleeved in the middle position of the rotating shaft.

3. The road marking spraying device according to claim 1, characterized in that: The bottom rear end of the spraying cart (1) is provided with a light source, which is used to emit strong light to illuminate the road surface.

4. A road marking spraying device according to claim 1, characterized in that: The top of the painting cart (1) is equipped with a high-precision positioning sensor.

5. A road marking spraying device according to claim 1, characterized in that: The front bottom of the spray painting cart (1) is equipped with sweeping brooms arranged in a figure-eight shape.

6. A road marking spraying device according to claim 5, characterized in that: The top of the cleaning broom is equipped with an air blowing hole.

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