Special line snapping device for changing white road surface into black road surface
By designing a line-drawing device that includes a handle, a control device, a horizontal rod, a vertical rod, an ink tank, an electric inkjet gun, and a universal wheel, the problems of large line deviation and broken lines in the process of converting white pavement to black pavement are solved, high-precision ink line drawing is achieved, and the flatness and integrity of the asphalt concrete pavement are ensured.
Patent Information
- Application Number
- CN202422557106.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-22
AI Technical Summary
During the process of converting the existing pavement from white to black, the line marking method has problems of large deviation and broken lines, resulting in uneven asphalt concrete paving thickness and uneven road surface.
A line-drawing device was designed, which includes a handle, a control device, a horizontal rod, a vertical rod, an ink tank, an electric inkjet gun and a universal wheel. The telescopic rod and spring provide buffering, and the ruler and universal wheel are combined to simulate the trajectory of the asphalt paver to ensure the accurate drawing of the ink line.
It improves the accuracy and efficiency of line marking, ensures the flatness and integrity of the asphalt concrete paving surface, and improves the construction quality.
Smart Images

Figure CN223358062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road construction auxiliary equipment, in particular to a line-drawing device specially used for changing white road surfaces to black road surfaces. Background Art
[0002] "White-to-black" road construction refers to the conversion of an off-white cement concrete pavement to a black asphalt concrete pavement, achieving environmental benefits, preventing dust, reducing noise, and enhancing driving comfort. Compared to the original concrete pavement, the black-to-white conversion provides enhanced adhesion between the pavement and tires, significantly improving braking performance in emergency situations and making driving safer and smoother. Driving noise is also significantly reduced, playing a significant role in reducing urban noise. Black asphalt pavement also absorbs dust generated by vehicles, improving air quality around shops and residential buildings along the street and enhancing the quality of the urban environment.
[0003] During the white-to-black road construction process, asphalt concrete should be marked before paving to ensure the thickness and smoothness of the finished asphalt surface. A common marking method is manual marking. Two technicians measure the thickness at the beginning and end of the road, based on the smoothness and curvature of the roadbed. Typically, every 5-10 meters, the marking distance is shortened, and the line is marked from the beginning to the end of the road. Because the marking process forms a straight line between the two points, the following problems often arise: 1. The thickness at the beginning and end is sufficient, but the thickness in the middle is off. 2. The length of a white-to-black road surface typically ranges from several hundred meters to several thousand meters. Marking the line at 5-10 meters as a point will result in a broken line, meaning the entire road surface is not a complete curve. Utility Model Content
[0004] The purpose of the utility model is to provide a line-drawing device specially used for changing white road surfaces to black road surfaces, so as to solve the technical problems of large deviation and broken lines in the existing line-drawing process.
[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:
[0006] A marking device specially used for changing white road surfaces to black road surfaces comprises a handle and a control device, a transverse rod device, a vertical rod, an ink tank and an electric inkjet gun and a universal wheel. The handle and the control device are connected to the transverse rod device. The vertical rods are arranged at both ends of the transverse rod device and are arranged vertically. The ink tank and the electric inkjet gun are arranged on the vertical rod and are arranged horizontally. The universal wheel is arranged on the transverse rod device. The handle and the control device are connected to the ink tank and the electric inkjet gun via a wire.
[0007] Furthermore, the handle and control device include a handle, an inkjet control switch and a push rod, the handle is connected to one end of the push rod, the inkjet control switch is arranged on the handle, and the other end of the push rod is connected to the transverse rod device.
[0008] Furthermore, the transverse rod device includes a fixed transverse rod, a telescopic rod tightening device, and a telescopic rod. The fixed transverse rod is laterally fixed on the push rod, the telescopic rod is telescopically arranged at both ends of the fixed transverse rod, and the telescopic rod tightening device is arranged at the connection between the fixed transverse rod and the telescopic rod.
[0009] Furthermore, the transverse rod device also includes a telescopic rod spring, which is arranged on the telescopic rod and is used to provide a transverse collision buffering effect.
[0010] Furthermore, a ruler is provided on both the fixed cross bar and the telescopic rod.
[0011] Furthermore, a ruler is provided on the vertical rod, and the ink tank and the electric inkjet gun are movably provided on the vertical rod by providing a tightening and fixing device for the ink tank and the electric inkjet gun.
[0012] The utility model has the following beneficial effects due to the adoption of the above technical solution:
[0013] The utility model can adjust the length of the bottom crossbar to 5 meters at most and 1.4 meters at most through a knob, making it easy to carry. The universal wheels, springs, ruler, and inkjet gun at the bottom can simulate the running track of the asphalt paver in urban parks and residential areas where white roads are converted to black roads, and draw the asphalt completion line. The white-to-black road surface is basically an old road. Due to construction technology, natural environment, and other factors, the road surface width may have an error of within ±3 centimeters. The inkjet gun is fixed at the height (asphalt thickness) determined by the ruler to spray ink. The spring provides a buffer for the tool when it passes over rugged roads, ensuring that the inkjet is close to the curbs on both sides and the ink line is drawn smoothly, thereby improving the accuracy and efficiency of manual line drawing. After all, the process of drawing the entire line can be more intuitively seen, ensuring the integrity of the drawing completion line and the flatness of the asphalt finish surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the line springing device of the utility model.
[0015] In the accompanying drawings, 1-handle, 2-inkjet control switch, 3-push rod, 4-vertical rod, 5-ink tank and electric inkjet gun tightening and fixing device, 6-ink tank and electric inkjet gun, 7-fixed cross bar, 8-telescopic rod tightening device, 9-telescopic rod spring, 10-telescopic rod, 11-universal wheel. DETAILED DESCRIPTION
[0016] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help readers gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.
[0017] 4. Figure 1 As shown, a line-drawing device specially used for changing white pavement to black, comprising a handle and control device, a transverse rod device, a vertical rod 4, an ink tank and an electric inkjet gun 6, and a universal wheel 11. The handle and control device are connected to the transverse rod device, the vertical rod 4 is arranged at both ends of the transverse rod device and is arranged vertically, the ink tank and the electric inkjet gun 6 are arranged on the vertical rod 4 and are arranged horizontally, the universal wheel 11 is arranged on the transverse rod device, and the handle and control device are connected to the ink tank and the electric inkjet gun 6 via a wire. Parameter dimensions: height: 1300mm, width: 1400mm. Aiming at the shortcomings of the traditional line-drawing method, improvements are made to provide a new line-drawing tool with high turnover rate, durability, portability, beauty and practicality. The tool simulates the paving trajectory of an asphalt paver when paving asphalt, and draws the finished asphalt surface in one go, thereby improving efficiency and accuracy.
[0018] The handle and control device includes a handle 1, an inkjet control switch 2, and a push rod 3. The handle 1 is connected to one end of the push rod 3, which is mounted on the handle 1. The other end of the push rod 3 is connected to a transverse rod assembly. The transverse rod assembly includes a fixed crossbar 7, a telescopic rod tightening device 8, and a telescopic rod 10. The fixed crossbar 7 is laterally fixed to the push rod 3, and the telescopic rod 10 is telescopically mounted at both ends of the fixed crossbar 7. The telescopic rod tightening device 8 is located at the connection between the fixed crossbar 7 and the telescopic rod 10. The transverse rod assembly also includes a telescopic rod spring 9, which is mounted on the telescopic rod 10 and provides a lateral impact buffer.
[0019] In the embodiment of the present invention, a ruler is provided on both the fixed crossbar 7 and the telescopic rod 10. A ruler is provided on the vertical rod 4, and the ink tank and the electric inkjet gun 6 are movably provided on the vertical rod 4 by providing the ink tank and the electric inkjet gun tightening fixing device 5.
[0020] like Figure 1 As shown, there are wheels at both ends. The length of the bottom crossbar can be adjusted to 5 meters at most and 1.4 meters at most for easy carrying. The bottom universal wheel, spring, ruler, inkjet gun (see Figure 1) can simulate the trajectory of an asphalt paver and draw the asphalt finish line on white-to-black roads in urban parks and residential areas. White-to-black roads are typically older roads, and due to construction techniques and the natural environment, the road width may vary within ±3 centimeters. The inkjet gun is positioned at a height (asphalt thickness) determined by a ruler. A spring provides cushioning for the tool as it moves over uneven surfaces, ensuring the inkjet adheres closely to the curbs and draws the line smoothly. This improves the accuracy and efficiency of manual line drawing. After all, the entire line drawing process can be more intuitively observed, ensuring the integrity of the finished line and the smoothness of the finished asphalt surface.
[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A line-drawing device specially used for converting white pavement to black pavement, characterized by: The invention comprises a handle and a control device, a transverse rod device, a vertical rod (4), an ink tank and an electric inkjet gun (6) and a universal wheel (11). The handle and the control device are connected to the transverse rod device. The vertical rod (4) is arranged at both ends of the transverse rod device and is arranged vertically. The ink tank and the electric inkjet gun (6) are arranged on the vertical rod (4) and are arranged transversely. The universal wheel (11) is arranged on the transverse rod device. The handle and the control device are connected to the ink tank and the electric inkjet gun (6) through a wire.
2. A line-drawing device specifically for converting white pavement to black pavement according to claim 1, characterized in that: The handle and control device comprise a handle (1), an inkjet control switch (2) and a push rod (3); the handle (1) is connected to one end of the push rod (3); the inkjet control switch (2) is arranged on the handle (1); and the other end of the push rod (3) is connected to a transverse rod device.
3. The line-drawing device for converting white pavement to black pavement according to claim 2, characterized in that: The transverse rod device comprises a fixed transverse rod (7), a telescopic rod tightening device (8), and a telescopic rod (10). The fixed transverse rod (7) is transversely fixedly arranged on the push rod (3), the telescopic rod (10) is telescopically arranged at both ends of the fixed transverse rod (7), and the telescopic rod tightening device (8) is arranged at the connection between the fixed transverse rod (7) and the telescopic rod (10).
4. A line-drawing device for converting white pavement to black pavement according to claim 3, characterized in that: The transverse rod device further comprises a telescopic rod spring (9), which is arranged on the telescopic rod (10) and is used for providing a transverse collision buffering effect.
5. The line-drawing device for converting white pavement to black pavement according to claim 3, characterized in that: A ruler is provided on both the fixed crossbar (7) and the telescopic rod (10).
6. The line-drawing device for converting white pavement to black pavement according to claim 1, characterized in that: A ruler is provided on the vertical rod (4); an ink tank and an electric inkjet gun (6) are movably provided on the vertical rod (4) by providing an ink tank and electric inkjet gun tightening and fixing device (5).