Crack marking device based on road preventive maintenance

Abstract

The utility model relates to road maintenance technical field, and disclose the crack marking device based on road preventive maintenance, include: frame, the bottom of frame is rotatably connected with two walking wheels through the pivot, and the top fixed mounting of frame has operating handle, marking component, marking component installs on the frame, is used for marking at the road crack, marking component includes two marking pieces, is used for adjusting the adjusting piece of two marking piece interval and is used for controlling the control piece of two marking pieces. The crack marking device based on road preventive maintenance, through setting up double marking piece synchronous operation, can complete the marking of crack both sides once, significantly improve construction efficiency, cooperate with the roller formula coating layer design, ensure that marking line is even, clear, improve the identifiable nature and accuracy of marking, and realize automatic feeding, reduce manual intervention, prevent paint waste, improve the economy.

Description

Technical Field

[0001] This utility model relates to the field of road maintenance technology, specifically a crack marking device based on preventive road maintenance. Background Technology

[0002] With the continuous expansion of my country's highway network and the constant growth of traffic flow, road maintenance is facing unprecedented challenges. Cracks, as one of the most common early-stage defects in asphalt pavements, can easily lead to more serious structural problems such as water penetration, base layer damage, and potholes if not detected and properly addressed in a timely manner. This significantly shortens the road's service life and increases maintenance costs and traffic safety risks. Therefore, early identification and accurate marking of cracks have become a crucial link in the preventative road maintenance system.

[0003] Currently, crack detection and marking still rely primarily on manual inspections, supplemented by simple mechanical tools, resulting in low efficiency. Although intelligent detection technologies such as drones, LiDAR, and image recognition have been gradually applied to pavement defect identification in recent years, they are mainly focused on the crack discovery and assessment stage. For the subsequent precise marking and location stages, there is still a lack of efficient dedicated equipment. Existing marking methods mostly involve manual hand-held spray paint cans or marking pens, which suffers from uneven marking, large positional deviations, low work efficiency, and significant paint waste, failing to meet the urgent needs of modern road maintenance for high efficiency, high precision, and low material consumption.

[0004] Furthermore, the varying widths and complex shapes of cracks make traditional fixed marking devices ill-suited to the individual needs of different cracks. The lack of flexible spacing adjustment and material replenishment control mechanisms leads to unstable marking results and poor continuity. Therefore, there is an urgent need to develop a novel crack marking device that integrates automatic adjustment, automatic material replenishment, and precise marking. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a crack marking device based on preventive road maintenance, which solves the problem of unstable marking effect caused by the lack of flexible spacing adjustment and material replenishment control mechanisms in the prior art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a crack marking device based on road preventive maintenance, comprising:

[0009] The frame has two wheels rotatably connected to its bottom via a pivot, and an operating handle is fixedly installed on its top.

[0010] A marking assembly, mounted on a frame, for marking road cracks;

[0011] The marking assembly includes two marking elements, an adjusting element for adjusting the distance between the two marking elements, and a controlling element for controlling the two marking elements.

[0012] Preferably, the marking element includes a movable frame slidably connected to the frame, a support is rotatably connected to the bottom of the movable frame, and a roller is rotatably connected inside the support, and a coating layer is provided on the outer surface of the roller;

[0013] The top of the movable frame is fixedly connected to an injection pipe, and the top of the injection pipe is detachably fitted with a cover plate.

[0014] A connecting pipe is fixedly connected between the bracket and the movable frame, and a rubber sheet is fixedly connected inside the connecting pipe, with a cross-shaped gap hole inside the rubber sheet.

[0015] Preferably, the adjusting component includes an electric telescopic rod fixed to the top of the frame, and the telescopic end of the electric telescopic rod is hinged to two inclined transmission frames, one end of each of the two transmission frames being rotatably connected to the injection tubes in the two marking components.

[0016] Preferably, the control component includes a mounting bracket fixed to the bottom of the frame, and the bottom of the mounting bracket is provided with a liftable top plate via a guide frame;

[0017] Rigid tubes are fixedly connected to both sides of the mounting bracket, and the top ends of the two rigid tubes are fixedly connected to the cover plates in the two marking pieces through telescopic hoses. Flared sleeves are fixedly connected to the bottom of the two rigid tubes, and piston blocks are fixedly connected to both sides of the top of the top plate.

[0018] Preferably, an impact rod is fixedly connected to the top of the top plate, and a touch counter is fixedly connected to the bottom of the mounting bracket.

[0019] Preferably, a circular block is fixedly connected to the outer surface of the rotating shaft, and at least one protrusion for lifting the top plate is fixedly connected to the outer surface of the circular block.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a crack marking device based on road preventive maintenance, which has the following beneficial effects:

[0022] Improve labeling efficiency and accuracy

[0023] This invention, by setting up dual markers for simultaneous operation, can complete the marking on both sides of the crack in one go, significantly improving construction efficiency; combined with the roller-type coating layer design, it ensures that the marking lines are uniform and clear, improving the recognizability and accuracy of the markings.

[0024] Achieve automatic material replenishment and reduce manual intervention.

[0025] By linking the control components with the traveling wheels, the top plate is periodically lifted by the protrusions, which drives the piston block to pressurize the inside of the marking component, thereby achieving automatic replenishment of reflective pigment. This avoids frequent manual stops for material feeding, improving continuous operation capability and automation level.

[0026] Prevent paint waste and improve economic efficiency

[0027] The marking component has a rubber sheet and a cross-shaped gap hole structure inside, which automatically closes the discharge channel when not in operation to prevent pigment dripping; at the same time, the gas pressure is controlled by the switch valve and expansion sleeve to achieve precise material replenishment, effectively reducing paint waste and lowering maintenance costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a top view of the frame structure of this utility model;

[0030] Figure 3 This is a side view of the frame structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the mounting bracket of this utility model;

[0032] Figure 5 This is a cross-sectional view of the structure of the marker of this utility model.

[0033] In the diagram: 100, frame; 101, control handle; 102, wheels;

[0034] 200. Marker component;

[0035] 210. Marking element; 211. Movable frame; 212. Support; 213. Roller; 214. Coating layer; 215. Injection tube; 216. Connecting tube; 217. Rubber sheet;

[0036] 220. Adjusting component; 221. Electric telescopic rod; 222. Transmission frame;

[0037] 230. Control component; 231. Mounting bracket; 232. Top plate; 233. Rigid tube; 234. Flared sleeve; 235. Piston block; 236. Impact rod; 237. Touch counter; 238. Circular block. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example 1:

[0040] See attached document Figures 1 to 5 A crack marking device based on preventive road maintenance includes:

[0041] The frame 100 has two wheels 102 rotatably connected to its bottom via a pivot, and an operating handle 101 is fixedly installed on its top.

[0042] The handle 101 allows workers to easily push the equipment using the two wheels 102 to create crack markings.

[0043] Marking assembly 200 is mounted on frame 100 and is used to mark road cracks; marking assembly 200 includes two marking elements 210, an adjusting element 220 for adjusting the distance between the two marking elements 210, and a control element 230 for controlling the two marking elements 210, and the control element 230 is connected to the rotating shaft drive.

[0044] The marking component 200 has two marking elements 210 for marking on both sides of the crack, enhancing the visibility of the markings. The spacing between the two marking elements 210 can be adjusted by the adjusting element 220 to accommodate marking cracks of different widths and sizes, thus expanding the applicability of the markings. The control element 230 can control the reflective pigment stored inside the two marking elements 210 to ensure orderly replenishment, thereby improving the continuity and durability of the crack marking device.

[0045] Note: The operating handle 101 is equipped with a control system for controlling the marking component 200 in the prior art. The control system includes a control box fixed to the operating handle 101 and a drive switch. The control box contains a power supply.

[0046] See attached document Figure 5 The marker 210 includes a movable frame 211 slidably connected to the frame 100, a support 212 rotatably connected to the bottom of the movable frame 211, a roller 213 rotatably connected inside the support 212, and a coating layer 214 provided on the outer surface of the roller 213.

[0047] The roller 213 is rotatably connected to the inside of the bracket 212, and the bracket 212 is rotatably connected to the bottom of the movable frame 211. In this way, the roller 213 can roll in different directions to form crack markings in different directions. A paint layer 214 is provided on the outer surface of the roller 213 for real-time marking when the roller 213 rolls on the ground. The size of the marking is consistent with the width of the paint layer 214, which improves the visibility of the markings.

[0048] The top of the movable frame 211 is fixedly connected to the injection pipe 215, and the top of the injection pipe 215 is detachably fitted with a cover plate.

[0049] The injection tube 215 allows workers to easily inject reflective pigment required for marking into the interior of the movable frame 211, while the cover plate is used to seal the injection tube 215.

[0050] A connecting pipe 216 is fixedly connected between the bracket 212 and the movable frame 211, and a rubber sheet 217 is fixedly connected inside the connecting pipe 216, and a cross gap hole is provided inside the rubber sheet 217.

[0051] The connecting pipe 216 is used to inject the reflective pigment stored inside the movable frame 211 onto the paint layer 214 on the outer surface of the roller 213, forming an automatic pigment replenishment operation, so that the marker 210 can continuously perform marking work.

[0052] The rubber sheet 217 is used to control the connecting pipe 216. The cross-shaped gap hole on the rubber sheet 217 prevents the pigment inside the movable frame 211 from flowing out through the cross-shaped gap hole when there is no pressure, thus preventing the reflective pigment from being discharged randomly and causing pigment waste.

[0053] See attached document Figure 2 and Figure 3 The adjusting component 220 includes an electric telescopic rod 221 fixed to the top of the frame 100, and the telescopic end of the electric telescopic rod 221 is hinged to two inclined transmission frames 222. One end of the two transmission frames 222 is rotatably connected to the injection tube 215 in the two marking components 210 respectively.

[0054] The electric telescopic rod 221 is connected to the control system and is used to drive the two transmission frames 222 to move in a fan shape. In this way, the two injection pipes 215 drive the two marking elements 210 to move relative to or away from each other, thereby adjusting the marking range of the two marking elements 210 and thus realizing the marking work of cracks of different sizes.

[0055] See attached document Figure 3 and Figure 4The control component 230 includes a mounting bracket 231 fixed to the bottom of the frame 100. The bottom of the mounting bracket 231 is provided with a liftable top plate 232 via a guide frame. Rigid tubes 233 are fixedly connected to both sides of the mounting bracket 231, and the top ends of the two rigid tubes 233 are fixedly connected to the cover plates in the two marking components 210 via telescopic hoses. Flared sleeves 234 are fixedly connected to the bottom of the two rigid tubes 233, and piston blocks 235 are fixedly connected to both sides of the top of the top plate 232.

[0056] As the top plate 232 rises, it drives the two piston blocks 235 to move upwards, thereby inserting them into the corresponding flared sleeves 234. This compresses the gas inside the flared sleeves 234 and the rigid tube 233, causing the compressive force to act directly on the inside of the movable frame 211 through the telescopic hose. This increases the pressure inside the movable frame 211, allowing the reflective pigment inside the movable frame 211 to pass directly through the rubber sheet 217 and be supplied to the paint layer 214 of the roller 213 through the connecting pipe 216, thus completing the material replenishment process. Finally, the paint layer 214 marks the roller 213 on the ground.

[0057] Example 2: The difference from Example 1 is that;

[0058] See attached document Figure 3 A circular block 238 is fixedly connected to the outer surface of the rotating shaft, and at least one protrusion for lifting the top plate 232 is fixedly connected to the outer surface of the circular block 238.

[0059] The circular block 238 is fixed to the outer surface of the rotating shaft. When the two walking wheels 102 are rolling, the circular block 238 can rotate, thereby driving the protrusion to rotate in a circle. When the protrusion rotates to contact the top plate 232, it can drive the top plate 232 to move upward, forming the control component 230 to control the two markers 210, and forming the markers 210 to trigger the replenishment of reflective pigment.

[0060] Both rigid tubes 233 are equipped with switching valves and expansion sleeves that communicate with the inside of the rigid tubes 233.

[0061] By controlling the switching valve, the gas flow rate of the rigid tube 233 can be controlled synchronously. This adjusts the amount of gas entering the marking component 210, creating different pressures to achieve different amounts of replenishment of reflective pigment inside the movable frame 211. Furthermore, the rigid tube 233 can be completely closed to prevent the equipment from moving after marking and causing continuous material replenishment.

[0062] The expansion sleeve design facilitates the process when the piston block 235 enters the flared sleeve 234. Due to the regulation of the switching valve, the internal pressure of the rigid tube 233 cannot be released, which affects the orderly pressurization of the gas inside the flared sleeve 234 by the piston block 235.

[0063] Specific principle: When the switching valve is completely closed to the rigid pipe 233, as the piston block 235 is inserted into the flared sleeve 234, the pressure inside the flared sleeve 234 can be released through the expansion sleeve.

[0064] Example 3: The difference from Example 2 is that;

[0065] See attached document Figure 4 An impact rod 236 is fixedly connected to the top of the top plate 232, and a touch counter 237 is fixedly connected to the bottom of the mounting bracket 231.

[0066] An impact rod 236 is fixedly connected to the top of the top plate 232. When the top plate 232 is lifted upwards, the impact rod 236 moves upwards to strike the touch counter 237, causing the touch counter 237 to count. The distance between each count is equal to the circumference of the traveling wheel 102. Thus, by knowing the number of counts of the touch counter 237 and the circumference of the traveling wheel 102, the range of its markings can be known, which makes it easier for subsequent workers to roughly know the materials needed for gap repair. Note: The touch counter 237 uses a counting instrument in the prior art, so it will not be described in detail here.

[0067] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crack marking device based on road preventive maintenance, characterized in that, include: A frame (100) has two wheels (102) rotatably connected to its bottom via a pivot, and an operating handle (101) is fixedly installed on the top of the frame (100). A marking assembly (200), mounted on a frame (100), is used to mark road cracks; The marking assembly (200) includes two marking elements (210), an adjusting element (220) for adjusting the distance between the two marking elements (210), and a controlling element (230) for controlling the two marking elements (210).

2. The crack marking device based on preventive road maintenance according to claim 1, characterized in that: The marker (210) includes a movable frame (211) slidably connected to the frame (100), a bracket (212) is rotatably connected to the bottom of the movable frame (211), and a roller (213) is rotatably connected inside the bracket (212), and a coating layer (214) is provided on the outer surface of the roller (213). The top of the movable frame (211) is fixedly connected to an injection pipe (215), and the top of the injection pipe (215) is detachably fitted with a cover plate. A connecting pipe (216) is fixedly connected between the bracket (212) and the movable frame (211), and a rubber sheet (217) is fixedly connected inside the connecting pipe (216), and a cross gap hole is provided inside the rubber sheet (217).

3. The crack marking device based on preventive road maintenance according to claim 2, characterized in that: The adjusting member (220) includes an electric telescopic rod (221) fixed to the top of the frame (100), and the telescopic end of the electric telescopic rod (221) is hinged to two inclined transmission frames (222), one end of the two transmission frames (222) being rotatably connected to the injection pipes (215) in the two marking members (210).

4. The crack marking device based on road preventive maintenance according to claim 2, characterized in that: The control unit (230) includes a mounting bracket (231) fixed to the bottom of the frame (100), and the bottom of the mounting bracket (231) is provided with a liftable top plate (232) via a guide frame; Rigid tubes (233) are fixedly connected to both sides of the mounting bracket (231), and the top ends of the two rigid tubes (233) are fixedly connected to the cover plates in the two marker pieces (210) through telescopic hoses. The bottom ends of the two rigid tubes (233) are fixedly connected to the flared sleeves (234), and piston blocks (235) are fixedly connected to both sides of the top of the top plate (232).

5. The crack marking device based on road preventive maintenance according to claim 4, characterized in that: The top of the top plate (232) is fixedly connected to an impact rod (236), and the bottom of the mounting bracket (231) is fixedly connected to a touch counter (237).

6. The crack marking device based on road preventive maintenance according to claim 4, characterized in that: A circular block (238) is fixedly connected to the outer surface of the rotating shaft, and at least one protrusion for lifting the top plate (232) is fixedly connected to the outer surface of the circular block (238).

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