KR20230166447A - Road painting device - Google Patents

Abstract

The road surface painting device, which sprays and paints paint on the road surface, consists of a plurality of frames, a pair of running wheels are provided at the rear end, a trailer whose front end is connected to a towing vehicle and is towed at an angle toward the bottom of the rear, and It is provided to be able to go up and down at the rear end of the trailer, and may include a first height adjuster that raises the rear end of the trailer while contacting the road surface and adjusts it to the same height as the front end.

Description

Road painting device {Road painting device}

The present invention relates to a road surface painting device, and more specifically, to a road surface painting device that paints lanes and various letters and symbols on the road surface.

In general, various letters and symbols are painted on the road surface to indicate lanes and road information to guide the driving direction of vehicles.

The characters and symbols are painted manually on the road by workers using a roller or painting device. Therefore, the quality of painting is determined by the worker's skill level, and because the work is not of consistent quality, the work speed is also very slow.

Additionally, when the letters and symbols are painted using a painting vehicle equipped with a painting device, the letters and symbols may be displayed in irregular sizes or their accuracy may be reduced.

The present invention provides a road surface painting device that can quickly and accurately paint letters and symbols on the road surface, even if a person is not skilled.

The road surface painting device according to the present invention, which sprays and paints a road surface, consists of a plurality of frames, a pair of running wheels are provided at the rear end, and the front end is connected to a towing vehicle and inclined toward the rear bottom. It is provided to be able to raise and lower the towed trailer and the rear end of the trailer, and may include a first height adjuster that raises the rear end of the trailer while contacting the road surface and adjusts it to the same height as the front end.

According to one embodiment of the present invention, as the first height adjuster raises the rear end of the trailer, the traveling wheels may be spaced apart from the road surface.

According to one embodiment of the present invention, the road surface painting device is provided to be able to lift and lower the front end of the trailer, and when the front end is separated from the towing vehicle, the front end of the trailer contacts the road surface. It may further include a second height adjuster that raises and adjusts the height to be the same as the rear end.

According to one embodiment of the present invention, the first height adjustment unit and the second height adjustment unit may each be provided with moving wheels for moving the trailer.

According to one embodiment of the present invention, the road surface painting device includes a first moving part that extends along the left and right directions of the frame and can move in the forward and backward directions, and the first moving part along the left and right directions. A second moving part provided to extend and movable in the left and right directions so as to protrude outside the frame, a third moving part provided in the second moving part to be movable in the left and right directions, and the third moving part It is provided and may include a spray unit that sprays the paint in a straight pattern through a paint spray nozzle.

According to one embodiment of the present invention, the paint spray nozzle may be rotatable to adjust the direction of the straight pattern.

According to one embodiment of the present invention, the spraying unit further includes a bead spraying nozzle that sprays beads on the paint sprayed on the road surface, and the bead spraying nozzle sprays the bead behind the moving direction of the paint spraying nozzle. It may be provided to rotate around the paint spray nozzle in order to spray.

According to embodiments of the present invention, rotation of the paint spray nozzle and rotation of the bead spray nozzle may be performed independently.

According to one embodiment of the present invention, the road surface painting device is provided in the third moving part, and further includes a sensing part that detects the condition of the road surface including a slope or curvature of the road surface, The spray angle of the paint spray nozzle may be adjusted so that the spray angle of the paint spray nozzle is perpendicular to the road surface depending on the inclination or curvature.

According to one embodiment of the present invention, the detection unit additionally detects the state of the road surface including the distance to the road surface, and the distance between the paint injection nozzle and the road surface is constant according to the distance to the road surface. To this end, the paint spray nozzle may be movable in an upward and downward direction.

Since the road painting device according to the present invention is towed and moved by a towing vehicle, the road painting device can be easily moved and the position of the road painting device can be easily adjusted.

In addition, since the spraying unit can move to the outside of the trail part to paint, the painting range of the road surface painting device can be expanded. As the painting range of the spray portion is expanded, the number of movements of the trailer can be relatively reduced, thereby reducing the time required to paint the road surface.

Regardless of the condition of the road surface, the paint spraying angle of the paint spray nozzle can be perpendicular to the road surface while maintaining a constant distance between the paint spray nozzle and the road surface, so the paint is painted at a constant thickness in the drawing. It can be. Therefore, the quality of painting using the road surface painting device can be maintained at a constant level.

Figure 1 is a perspective view for explaining a road painting device according to an embodiment of the present invention.
FIG. 2 is a side view illustrating a state in which the road painting device shown in FIG. 1 is being towed and moved by a tow vehicle.
Figure 3 is a perspective view for explaining the road surface painting device shown in Figure 2.
FIG. 4 is a side view illustrating a state in which the height of the trailer is adjusted using the first height adjustment unit shown in FIG. 2.
FIG. 5 is a side view illustrating a state in which the height of a trailer is adjusted using the first and second height adjusters shown in FIG. 2.
FIG. 6 is a side view for explaining the first moving part, the second moving part, the third moving part, the spraying part, and the sensing part shown in FIG. 2.

Hereinafter, the present invention will be described in detail with reference to the attached drawings. Since the present invention can be subject to various changes and can have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components. In the attached drawings, the dimensions of the structures are enlarged from the actual size for clarity of the present invention.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

FIG. 1 is a perspective view for explaining a road painting device according to an embodiment of the present invention, FIG. 2 is a side view for explaining a state in which the road painting device shown in FIG. 1 is being towed and moved by a towing vehicle, and FIG. 3 is a perspective view for explaining the road painting device shown in FIG. 2, FIG. 4 is a side view for explaining the state of adjusting the height of the trailer with the first height adjuster shown in FIG. 2, and FIG. 5 is shown in FIG. 2. It is a side view for explaining the state of adjusting the height of the trailer with the first and second height adjusters, and FIG. 6 shows the first moving part, the second moving part, the third moving part, and the second moving part shown in FIG. 2. This is a side view to explain the writing part and the sensing part.

Referring to FIGS. 1 to 6, the road surface painting device 100 is for painting the road surface by spraying paint, and includes a trailer 110, a first height adjustment unit 120, and a second height adjustment unit 130. ), a first moving part 140, a second moving part 150, a third moving part 160, an injection part 170, and a sensing part 180.

The trailer 110 is made by connecting a plurality of frames 111 horizontally and vertically.

A pair of traveling wheels 112 are provided at the rear end 110b of the trailer 110. The front end 110a of the trailer 110 protrudes forward and is connected to the towing vehicle. Accordingly, the trailer 110 can move while being towed by the towing vehicle.

When the trailer 110 is connected to the tow vehicle, the trailer 110 may be inclined toward the rear bottom.

Alternatively, when the trailer 110 is connected to the towing vehicle, the trailer 110 may be horizontal or may be inclined toward the rear top.

Since the road painting device 100 is towed and moved by the towing vehicle, the road painting device 100 can be easily moved, and the position of the road painting device 100 can be easily adjusted.

The first height adjustment unit 120 is provided to be able to elevate and lower the rear end 110b of the trailer 110, and adjusts the height of the rear end 110b of the trailer 110. (see Figure 4)

Specifically, the first height adjustment unit 120 contacts the road surface while lowering, and continues to lower while in contact with the road surface, thereby raising the rear end 110b of the trailer 110 and the front end ( It can be adjusted to the same height as 110a).

For example, the reference height at which the front end 110a is connected to the towing vehicle is preset, and the first height adjustment unit 120 can adjust the rear end 110b to be the same as the reference height. .

As another example, a first distance sensor and a second distance sensor (not shown) that measure the distance to the road surface are provided at the front end 110a and the rear end 110b, respectively, and the first distance sensor is used. After measuring the height of the front end 110a, the height of the rear end 110b is measured using the second distance sensor, and the first height adjustment unit 120 is adjusted to the rear end 110b. The height can be adjusted to be the same as the height of the front end portion 110a.

Examples of the first height adjustment unit 120 include LM guides, linear motors, ball screws, rotary motors, pumps, and cylinders.

The first height adjustment unit 120 may be controlled by a control unit (not shown). The control unit includes the second height adjusting unit 130, the first moving unit 140, the second moving unit 150, the third moving unit 160, the spraying unit 170, and the sensing unit. (180) can be controlled.

Alternatively, the first height adjustment unit 120 may be operated manually by an operator.

In order to stably adjust the height of the rear end 110b of the trailer 110, a pair of first height adjustment units 120 may be provided.

A first moving wheel 121 is provided at the lower end of the first height adjustment unit 120. The first moving wheel 121 may be used to move the trailer 110.

In addition, although not shown in detail, the first height adjustment unit 120 may be provided with a fixing means for fixing the first moving wheel 121.

Meanwhile, as the first height adjuster 120 raises the rear end 110b of the trailer 110, the traveling wheels 112 are spaced apart from the road surface. Since the traveling wheels 112 are separated from the road surface, the traveling wheels 112 do not affect the movement of the trailer 110.

After the first height adjustment unit 120 adjusts the height of the rear end 110b of the trailer 110, the road surface painting device 100 can paint the road surface.

The second height adjustment unit 130 is provided to be able to go up and down the front end 110a of the trailer 110, and adjusts the height of the front end 110a of the trailer 110. (see Figure 5)

Specifically, when the front end portion 110a is separated from the towing vehicle, the second height adjustment portion 130 lowers and comes into contact with the road surface, and continues to descend while in contact with the road surface, thereby causing the trailer 110 ) can be adjusted to the same height as the rear end (110b) by raising the front end (110a).

For example, the reference height at which the front end portion 110a is connected to the towing vehicle is preset, and the second height adjustment unit 130 can adjust the front end portion 110a to be the same as the reference height. .

As another example, a first distance sensor and a second distance sensor (not shown) that measure the distance to the road surface are provided at the front end 110a and the rear end 110b, respectively, and the second distance sensor is used. After measuring the height of the rear end 110b, the height of the front end 110a is measured using the first distance sensor, and the second height adjustment unit 130 is adjusted to the front end 110a. The height can be adjusted to be the same as the height of the rear end (110b).

Examples of the second height adjustment unit 130 include LM guides, linear motors, ball screws, rotary motors, pumps, and cylinders.

The second height adjustment unit 130 may be controlled by the controller or manually operated by an operator.

A second moving wheel 131 is provided at the lower end of the second height adjustment unit 130. The second moving wheel 131 may be used to move the trailer 110.

In addition, although not shown in detail, the second height adjustment unit 130 may be provided with a fixing means for fixing the second moving wheel 131.

Therefore, when the trailer 110 is supported by the first height adjuster 120 and the second height adjuster 130, the trailer 110 is supported by the first moving wheel 121 and the second height adjuster 130. 2 It can be moved using the moving wheels 131, and can be stopped using the fixing means.

The first height adjuster 120 adjusts the height of the rear end 110b of the trailer 110, and the second height adjuster 130 adjusts the height of the front end 110a of the trailer 110. After adjusting the height, the road surface painting device 100 can paint the road surface.

The first moving part 140, the second moving part 150, and the third moving part 160 move the spraying part 170 and the sensing part 180 of the trailer 110 in the forward and backward directions and left and right. It can be moved in any direction.

The first moving unit 140 extends along the left and right directions on the frame of the trailer 110, and both ends are coupled to the frame. Additionally, the first moving unit 140 can move in the forward and backward directions along the frame. At this time, the first moving unit 140 can be moved by the first driving unit 141.

The second moving part 150 is provided on the first moving part 140 and can move in the left and right directions along the first moving part 140. At this time, the second moving unit 150 can be moved by the second driving unit 151.

Additionally, the second moving unit 150 may include an extension member 152 extending along the left and right directions. As the second moving part 150 moves in the left and right directions, the extension member 152 also moves in the left and right directions. The extension member 152 may protrude out of the trailer 110 while moving in the left and right directions. Accordingly, the second moving unit 150 may protrude out of the trailer 110 in the left and right directions.

The third moving part 160 is provided in the second moving part 150 and can move in the left and right directions along the extension member 152 of the second moving part 150. At this time, the third moving unit 160 can be moved by the third driving unit 161.

Although not shown in detail, the first driving unit 141, which is a driving means for moving the first moving unit 140, the second moving unit 150, and the third moving unit 160, respectively. As the second driving unit 151 and the third driving unit 161, an LM guide and a linear motor, a ball screw and a rotary motor, a pump and a cylinder, a rotary motor, a pulley and a belt, a rotary motor and gears, etc. may be applied.

The spray unit 170 is provided on the third moving part 160, and is moved by the first moving part 140, the second moving part 150, and the third moving part 160 to the trailer ( 110) can move forward and backward and left and right.

The spray unit 170 may include a paint spray nozzle 171 that sprays the paint toward the road surface. The paint spray nozzle 171 may spray the paint in a straight pattern.

Since the second moving part 150 protrudes out of the trailer 110 in the left and right directions, the paint spray nozzle 171 is not only inside the trailer 110 but also protrudes from the trailer 110 in the left and right directions. It is possible to paint the road surface even from the outside. Accordingly, the painting range of the paint spray nozzle 171 can be expanded.

In addition, as the painting range of the paint spray nozzle 171 is expanded, the number of times the trailer 110 is moved to paint the road surface can be relatively reduced, thereby reducing the time required to paint the road surface. .

Meanwhile, the second moving part 150 protrudes out of the trailer 110 only while painting is performed using the paint spray nozzle 171. Therefore, when the trailer 110 moves, the second moving part 150 does not protrude outside the trailer 110, so the second moving part 150 restricts the movement of the trailer 110 or You may not interfere.

The paint spray nozzle 171 may be rotatable about a central axis in the vertical direction to adjust the direction of the straight pattern. For example, the paint spray nozzle 171 may be rotated by a step motor.

When the paint spray nozzle 171 is rotated so that the straight pattern of the paint spray nozzle 171 is perpendicular to the moving direction of the spray unit 170, the paint sprayed from the paint spray nozzle 170 The width can be made constant.

In addition, when the paint spray nozzle 171 is rotated so that the straight pattern of the paint spray nozzle 171 forms a certain angle rather than being perpendicular to the moving direction of the spray unit 170, by adjusting the angle The width of the paint sprayed from the paint spray nozzle 170 can be adjusted in various ways.

The spray unit 170 may further include a bead spray nozzle 172 that sprays beads on the paint sprayed on the road surface. The beads reflect the lights of vehicles moving at night.

The bead spray nozzle 172 is provided adjacent to the paint spray nozzle 171. The bead spray nozzle 172 may rotate around the paint spray nozzle 171 to spray the bead at the rear of the paint spray nozzle 171 in the moving direction. . Accordingly, after the paint spray nozzle 171 sprays the paint on the road surface, the bead spray nozzle 172 can spray the beads on the sprayed paint.

Rotation of the paint spray nozzle 171 and rotation of the bead spray nozzle 172 may be performed independently. Therefore, even if the paint spray nozzle 171 moves while the straight pattern of the paint spray nozzle 171 is not perpendicular to the direction of movement of the spray unit 170 and forms a constant angle, the bead spray nozzle 172 ) may be located rearward in the moving direction of the paint spray nozzle 171.

When the paint spray nozzle 171 moves while the straight pattern of the paint spray nozzle 171 is perpendicular to the moving direction of the spray unit 170, the paint spray nozzle 171 and the bead spray nozzle (172) can also rotate together.

The sensing unit 180 is provided on the third moving unit 160 and can move in the left-right direction and the front-back direction like the spraying unit 170. The detection unit 180 moves in the left-right direction and the front-back direction and detects the state of the road surface, including the slope or curvature of the road surface and the distance to the road surface. Examples of the sensing unit 180 may include a camera or scanner.

The paint spray nozzle 171 may be rotatable about a central axis in a horizontal direction parallel to the straight pattern to adjust the spray angle of the paint. For example, the paint spray nozzle 171 can control the spray angle of the paint using a step motor.

Additionally, the paint spray nozzle 171 may be provided to be movable in the vertical direction to adjust the distance from the road surface. For example, the paint spray nozzle 171 may move up and down by an LM guide and a linear motor, a ball screw and a rotary motor, a pump and a cylinder, a rotary motor, a pulley and a belt, a rotary motor and gears, etc.

The paint spray nozzle 171 adjusts the spray angle according to the slope or curvature of the road surface detected by the sensor 180, so that the paint spray angle of the paint spray nozzle 171 can be perpendicular to the road surface. . Therefore, the paint can be sprayed in a direction perpendicular to the road surface.

Considering the vertical distance between the sensing unit 180 and the paint spraying nozzle 171, the paint spraying nozzle 171 is moved in the vertical direction according to the distance to the road surface detected by the sensing unit 180. By doing so, the distance between the paint spray nozzle 171 and the road surface can be maintained constant. Accordingly, the paint can be sprayed at a certain distance from the road surface.

Regardless of the condition of the road surface, the distance between the paint spray nozzle 171 and the road surface is kept constant and the paint spray angle of the paint spray nozzle 171 is perpendicular to the road surface, so the paint is sprayed. , the paint may be painted at a constant thickness in the drawing. Therefore, the quality of painting using the road surface painting device 100 can be maintained at a constant level.

Although not shown in detail, an accommodating part is provided on the upper surface of the first moving part 140, and the accommodating part includes a paint storage tank, a heater, a fuel tank, a bead storage tank, a compressor, an input unit, a display unit, and the control unit. It can be provided.

The paint storage tank stores paint and is connected to the paint spray nozzle 171 through a pipe. The paint storage tank stores one of yellow, blue, and white paints, and the paint storage tank desired to be painted on the road surface can be selected and replaced among the paint storage tanks.

The heater applies heat to the paint storage tank to maintain the paint contained in the paint storage tank in a molten state.

The fuel tank stores fuel used for heating in the heater and supplies it to the heater.

The bead storage tank accommodates glass beads and is connected to the bead spray nozzle 172 through a pipe. Therefore, the glass beads contained in the bead storage tank are sprayed through the bead spray nozzle 172.

The compressor is connected to the paint spray nozzle 171 and the bead spray nozzle 172 through pipes, and adjusts the pressure provided to the paint spray nozzle 171 and the bead spray nozzle 172 to spray each. Controls the amount of paint and beads used.

The input unit receives characters and symbols input according to user manipulation, and may be configured with a keyboard or mouse.

The display unit displays various signals input from the input unit to facilitate the worker's work performance.

The control unit converts characters and symbols input through the input unit into a drawing, and performs the function of generating and providing a driving signal according to the converted drawing.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the following patent claims. You will understand that it is possible.

100: road painting device 110: trailer
110a: front end 110b: rear end
111: frame 112: traveling wheel
120: first height adjustment unit 121: first moving wheel
130: second height adjustment unit 131: second moving wheel
140: first moving part 141: first driving part
150: second moving part 151: second driving part
152: extension member 160: third moving part
161: third driving unit 170: injection unit
171: Paint spray nozzle 172: Bead spray nozzle
180: detection unit

Claims (10)

In a road surface painting device that sprays and paints paint on the road surface,
A trailer made of a plurality of frames, equipped with a pair of running wheels at the rear end, and the front end connected to a towing vehicle to be towed at an angle toward the rear bottom; and
A first height adjuster is provided at the rear end of the trailer to be able to be raised and lowered, and raises the rear end of the trailer while contacting the road surface to adjust it to the same height as the front end. Road surface painting comprising a. Device. According to paragraph 1,
As the first height adjuster raises the rear end of the trailer, the traveling wheels are spaced apart from the road surface. According to paragraph 1,
A second height adjuster is provided to be able to raise and lower the front end of the trailer, and when the front end is separated from the towing vehicle, raises the front end of the trailer while contacting the road surface to adjust it to the same height as the rear end. A road surface painting device further comprising: According to paragraph 3,
The first height adjustment unit and the second height adjustment unit are each provided with moving wheels for moving the trailer. According to paragraph 1,
a first moving part provided to extend along the left and right directions of the frame and capable of moving in a forward and backward direction;
a second moving part provided to the first moving part to extend along the left and right directions and movable in the left and right directions to protrude outside the frame;
a third moving part provided on the second moving part to move in the left and right directions; and
A spraying unit provided in the third moving unit and spraying the paint in a straight pattern through a paint spraying nozzle. According to clause 5,
The paint spray nozzle is rotatable to adjust the direction of the straight pattern. According to clause 6,
The spray unit further includes a bead spray nozzle that sprays beads on the paint sprayed on the road surface,
The bead spray nozzle is provided to be rotatable about the paint spray nozzle in order to spray the beads behind the paint spray nozzle in the moving direction. In clause 7,
A road surface painting device, wherein rotation of the paint spray nozzle and rotation of the bead spray nozzle are performed independently. According to clause 5,
It further includes a detection unit provided in the third moving unit and detecting the condition of the road surface, including a slope or curvature of the road surface,
A road surface painting device wherein the spray angle of the paint spray nozzle can be adjusted so that the spray angle of the paint spray nozzle is perpendicular to the road surface according to the inclination or curvature of the road surface. According to clause 9,
The sensor further detects the condition of the road surface including the distance to the road surface,
A road surface painting device, wherein the paint spray nozzle is movable in an up and down direction so that the distance between the paint spray nozzle and the road surface is constant depending on the distance to the road surface.

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