Repair device for road maintenance

By using a laser rangefinder and an automatic control system, the problem of controlling asphalt usage in existing technologies has been solved, enabling automatic filling and compaction functions, thus improving the efficiency and quality of highway repair.

CN223738458UActive Publication Date: 2025-12-30SHENZHEN ZHONGYE TRAFFIC ENG CO LTD
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Patent Information

Application Number
CN202520254573.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-30
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing highway maintenance and repair equipment requires workers to manually control the amount of asphalt used. The outlet pipe is located below the base plate, making it impossible to observe whether the gaps are filled. This can easily lead to over-injection, waste, and increased repair time.

Method used

A laser rangefinder is used to measure the depth of the cracks, the controller automatically controls the electronic valve to adjust the amount of asphalt, and the servo motor stirring paddle maintains the fluidity of the asphalt. A vibrating motor drives the compaction roller to flatten the road surface.

Benefits of technology

It enables automatic control of asphalt usage, avoids waste, improves repair efficiency and ground smoothness, and reduces manual intervention time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223738458U_ABST
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Abstract

The utility model relates to the technical field of road maintenance and repair, in particular to a repair device for road maintenance, which comprises a moving plate, a push rod, a placing barrel and a cover plate, the push rod is fixedly connected onto the moving plate, the placing barrel is fixedly connected onto the moving plate, and the cover plate covers the placing barrel. A muzzle of a spraying gun is aligned with a place needing to be filled, at the moment, a laser in the laser distance measuring sensor equipment emits a laser pulse, the laser pulse is reflected back to the bottom of a gap and is captured by a built-in receiver, the distance between the gap and the ground is measured, and then the laser distance measuring sensor emits a signal to a controller; the controller controls the electric control valve to be turned on and turned off, so that asphalt is injected into the gap from the spraying gun through the hose, the effects of automatic filling and automatic asphalt dosage control are achieved, the working efficiency is improved, the asphalt dosage can be accurately controlled, and the situation that materials are wasted due to excessive asphalt injection is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of highway maintenance and repair technology, and in particular to a highway maintenance and repair device. Background Technology

[0002] Highway maintenance and repair refers to a series of tasks to maintain and repair existing highways in order to ensure the safety, traffic capacity and service life of the roads. For cracks in the road surface, materials need to be filled in a timely manner to prevent water from seeping into the roadbed and causing greater damage.

[0003] Patent CN219240231U discloses a novel crack repair device for highway maintenance. It includes a base plate, a liquid storage tank fixedly connected to the top of the base plate, a stirring motor fixedly connected to the top of the liquid storage tank, a first transmission roller fixedly connected to the output end of the stirring motor, a protective box fixedly connected to the top inside the liquid storage tank, a second transmission roller rotatably connected to one end of the protective box, transmission wheels fixedly connected to the outer sides of both the first and second transmission rollers near the protective box, transmission belts sleeved on the outer sides of the transmission wheels, and T-shaped rods fixedly connected to the bottom of both the first and second transmission rollers, with spiral stirring blades fixedly connected to the outer sides of the T-shaped rods. When using this patent for highway repair... By starting the pump, the asphalt in the storage tank can be extracted and injected into the infusion pipe. Finally, the asphalt will be discharged from the outlet pipe and injected into the road crack. However, when using the existing patent, the staff needs to manually control the pump to start and stop. The outlet pipe of the existing patent is located under the base plate, which completely covers the area to be repaired. This makes it impossible for the staff to know whether the crack is filled, which can easily lead to over-injection and waste. In addition, in order to ensure that the crack has been filled correctly, extra time is needed to check or repeat the operation, which increases the overall repair time.

[0004] Therefore, there is a need for a road maintenance and repair device with automatic control of asphalt dosage and automatic filling function. Utility Model Content

[0005] To overcome the drawbacks of existing patents where manual control of the pump is required, and where the outlet pipe is located below the base plate which completely covers the area to be repaired, making it impossible for workers to know whether the gap is filled, leading to over-injection and waste, and requiring additional time for inspection or repeated operation to ensure proper filling, thus increasing the overall repair time, this invention provides a road maintenance repair device with automatic asphalt dosage control and automatic filling functions.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: A road maintenance repair device includes a movable plate, a push rod, a placement bucket, and a cover plate. The push rod is fixedly connected to the movable plate, and the placement bucket is fixedly connected to the movable plate. The placement bucket is covered with a cover plate. The device also includes an asphalt pump, a spray gun, an electrically controlled valve, a hose, a support ring, a laser rangefinder sensor, and a controller. The asphalt pump is mounted on the movable plate and connected to the placement bucket. A hose is connected to the asphalt pump, and a spray gun is mounted on the hose. The spray gun is located to the left of the placement bucket. An electrically controlled valve is mounted on the spray gun, and a support ring is fixedly connected to the spray gun. A laser rangefinder sensor is mounted on the support ring, and a controller is mounted on the spray gun. The controller is electrically connected to the electrically controlled valve and the laser rangefinder sensor.

[0007] Furthermore, it also includes a support base, a servo motor, and a stirring paddle. The support base is fixedly connected inside the moving plate, the servo motor is mounted on the support base, and the stirring paddle is mounted on the output shaft of the servo motor. The stirring paddle is located inside the placement tank.

[0008] Furthermore, it also includes a support plate, a protective shell, a limiting plate, a rolling roller, and a vibration motor. The support plate is fixedly connected to the moving plate, the protective shell is fixedly connected to the support plate, the limiting plate is fixedly connected inside the protective shell, the vibration motor is installed on the limiting plate, and the rolling roller is rotatably arranged on the limiting plate, and the rolling roller slides on the limiting plate.

[0009] Furthermore, it also includes reflectors, with two reflectors mounted on the movable plate.

[0010] Furthermore, it also includes a placement rack, with two placement racks fixedly connected to the movable plate, and the spray gun is placed on the two placement racks.

[0011] Furthermore, it also includes anti-slip sleeves, with anti-slip sleeves fitted onto the push rod.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By aiming the nozzle of the spray gun at the area to be filled, the laser inside the laser ranging sensor emits a laser pulse. The laser pulse is reflected back to the bottom of the gap and captured by the built-in receiver, thereby measuring the distance between the gap and the ground. The laser ranging sensor then sends a signal to the controller, which controls the start and stop of the electronic control valve, so that asphalt is injected into the gap through the hose from the spray gun. This achieves the effect of automatic filling and automatic control of asphalt usage, improving work efficiency and accurately controlling the amount of asphalt used, avoiding the situation of injecting too much asphalt and wasting materials.

[0013] 2. By starting the servo motor, the output shaft of the servo motor drives the stirring paddle to rotate, thereby stirring the asphalt in the bucket. This prevents the asphalt from solidifying due to temperature drop, ensuring its fluidity and preventing the asphalt from clogging the hose.

[0014] 3. When the vibration motor is started, the current input to the electromagnetic coil in the stator of the vibration motor will generate an alternating magnetic field in the stator. The rotor will rotate under the action of electromagnetic force and rotate with the eccentric block. During the rotation, centrifugal force will be generated and will change periodically in a specific direction, thus forming a vibration effect. This will cause the rolling roller on the limit plate to move back and forth and squeeze the ground, thereby causing the rolling roller to rotate and flatten the repaired ground, ensuring the flatness of the ground. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the container, cover plate, and asphalt pump of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of the limiting plate, the rolling roller, and the vibration motor of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the support base, servo motor, and stirring paddle of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the spray gun, electric control valve, and support ring of this utility model.

[0020] In the attached diagrams: 1: Moving plate, 2: Push rod, 3: Placement bucket, 4: Cover plate, 5: Asphalt pump, 6: Spray gun, 601: Hose, 7: Electric control valve, 8: Support ring, 9: Laser rangefinder sensor, 10: Controller, 11: Support base, 12: Servo motor, 13: Mixing paddle, 14: Support plate, 15: Protective shell, 16: Limiting plate, 17: Roller roller, 18: Vibration motor, 19: Reflector, 20: Placement rack, 21: Anti-slip sleeve. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1: A repair device for highway maintenance, see reference. Figures 1-5As shown, the system includes a movable plate 1, a push rod 2, a placement bucket 3, and a cover plate 4. The movable plate 1 consists of a connecting plate and four movable wheels, which are evenly spaced at the bottom of the connecting plate. The push rod 2 is welded to the rear side of the connecting plate of the movable plate 1. The placement bucket 3 is fixedly connected to the top of the connecting plate of the movable plate 1, and the top of the placement bucket 3 is covered by the cover plate 4. The system also includes an asphalt pump 5, a spray gun 6, an electric control valve 7, a hose 601, a support ring 8, a laser rangefinder sensor 9, and a controller 10. The asphalt pump 5 is bolted to the upper right side of the connecting plate of the movable plate 1. An asphalt pump 5 is connected to a placement bucket 3. A hose 601 is connected to the asphalt pump 5, and a spray gun 6 is installed at the end of the hose 601. The spray gun 6 is located to the left of the placement bucket 3. An electric control valve 7 is installed at the rear of the spray gun 6. A support ring 8 is fixedly connected to the front of the spray gun 6. A laser rangefinder sensor 9 is installed at the bottom of the support ring 8 by bolt connection. The laser rangefinder sensor 9 is model MINI1200H. A controller 10 is installed at the front of the spray gun 6. The controller 10 is located between the support ring 8 and the electric control valve 7. The controller 10 is electrically connected to the electric control valve 7 and the laser rangefinder sensor 9.

[0023] See Figure 2 As shown, it also includes a reflector 19, and reflectors 19 are provided on both the left and right sides of the connecting plate of the movable plate 1.

[0024] See Figure 2 As shown, it also includes a placement rack 20. The upper left side of the connecting plate of the movable plate 1 is symmetrically connected to the placement rack 20, and the spray gun 6 is placed on the two placement racks 20.

[0025] See Figure 2 As shown, it also includes an anti-slip sleeve 21, which is fitted onto the push rod 2.

[0026] When road repairs are needed, first remove the cover plate 4, inject an appropriate amount of asphalt into the placement bucket 3, replace the cover plate 4, and then use the push rod 2 to push the equipment, moving it via the wheels on the moving plate 1. After moving it to the appropriate position, the worker removes the spray gun 6 and starts the asphalt pump 5, drawing the asphalt into the hose 601 of the spray gun 6. Then, by aiming the nozzle of the spray gun 6 at the area to be filled, the laser range sensor 9 emits a laser pulse from its internal laser. The laser pulse is reflected back to the bottom of the gap and captured by the built-in receiver, thus measuring the distance between the gap and the ground. The laser range sensor 9 then sends a signal to the controller 10, causing the controller 10 to activate the electronic control valve 7, thereby... Asphalt is injected into the gap through the spray gun 6 via the hose 601. During this process, the laser rangefinder 9 continuously measures the distance. When the gap is completely filled with asphalt, the laser rangefinder 9 sends a signal to the controller 10 again, causing the controller 10 to close the electronic control valve 7. This achieves the effect of automatic filling and automatic control of asphalt usage, improving work efficiency and enabling precise control of asphalt usage, avoiding the waste of materials due to excessive asphalt injection. The reflector 19 can reflect strong light under illumination, thereby significantly improving the visibility of the equipment under low light conditions. The anti-slip sleeve 21 increases the friction between the push rod 2 and the worker's hand, making it easier for the worker to grip the push rod 2. The placement rack 20 can hold the spray gun 6 for easy access by the worker.

[0027] Example 2: Based on Example 1, refer to Figure 3 and Figure 4 As shown, it also includes a support base 11, a servo motor 12 and a stirring paddle 13. The support base 11 is fixedly connected to the bottom of the connecting plate of the moving plate 1. The servo motor 12 is installed on the top of the support base 11 by means of bolt connection. The stirring paddle 13 is installed on the output shaft of the servo motor 12 and is located inside the placement tank 3.

[0028] After injecting an appropriate amount of asphalt into the placement tank 3, cover the tank with the cover plate 4 and start the servo motor 12. The output shaft of the servo motor 12 drives the stirring paddle 13 to rotate, thereby stirring the asphalt in the placement tank 3. This prevents the asphalt from solidifying due to temperature drop, ensures its fluidity, and prevents the asphalt from clogging the hose 601.

[0029] See Figure 2 and Figure 3As shown, it also includes a support plate 14, a protective shell 15, a limiting plate 16, a rolling roller 17, and a vibration motor 18. The support plate 14 is fixedly connected to the front side of the connecting plate of the moving plate 1. The protective shell 15 is provided on the support plate 14 by welding. The limiting plate 16 is fixedly connected to the top of the protective shell 15. The vibration motor 18 is installed on the top of the limiting plate 16 by bolt connection. The rolling roller 17 is rotatably provided on the lower part of the limiting plate 16 and slides on the limiting plate 16.

[0030] During repair, while pulling the push rod 2 to move the equipment, the vibration motor 18 is started. When current is input into the electromagnetic coil in the stator of the vibration motor 18, an alternating magnetic field is generated in the stator, causing the rotor to be subjected to electromagnetic force and start rotating. The eccentric block rotates with the rotor, generating centrifugal force during rotation. The centrifugal force changes periodically in a specific direction, thus forming a vibration effect. This allows the rolling roller 17 on the limiting plate 16 to move back and forth. As the rolling roller 17 moves back and forth, it presses against the ground, causing the rolling roller 17 to rotate and flatten the repaired ground, ensuring the flatness of the ground.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A road maintenance repair device, comprising a movable plate (1), a push rod (2), a placement bucket (3), and a cover plate (4), wherein the push rod (2) is fixedly connected to the movable plate (1), the placement bucket (3) is fixedly connected to the movable plate (1), and the cover plate (4) covers the placement bucket (3), characterized in that, The asphalt pump (5), the spraying gun (6), the electric control valve (7), the hose (601), the support ring (8), the laser ranging sensor (9) and the controller (10) are further included, the asphalt pump (5) is installed on the moving plate (1), the asphalt pump (5) is connected with the placing barrel (3), the hose (601) is connected on the asphalt pump (5), the spraying gun (6) is installed on the hose (601), the spraying gun (6) is located on the left side of the placing barrel (3), the electric control valve (7) is installed on the spraying gun (6), the spraying gun (6) is fixedly connected with the support ring (8), the laser ranging sensor (9) is installed on the support ring (8), the controller (10) is installed on the spraying gun (6), and the controller (10) is electrically connected with the electric control valve (7) and the laser ranging sensor (9).

2. A road maintenance patching device as claimed in claim 1, characterized in that The support seat (11), the servo motor (12) and the stirring paddle (13) are further included, the support seat (11) is fixedly connected in the moving plate (1), the servo motor (12) is installed on the support seat (11), the stirring paddle (13) is installed on the output shaft of the servo motor (12), and the stirring paddle (13) is located in the placing barrel (3).

3. A road maintenance patching device as claimed in claim 2, characterized in that The support plate (14), the protective shell (15), the limiting plate (16), the rolling roller (17) and the vibration motor (18) are further included, the support plate (14) is fixedly connected on the moving plate (1), the protective shell (15) is fixedly connected on the support plate (14), the limiting plate (16) is fixedly connected in the protective shell (15), the vibration motor (18) is installed on the limiting plate (16), the rolling roller (17) is rotatably arranged on the limiting plate (16), and the rolling roller (17) slides on the limiting plate (16).

4. A road maintenance patching device as claimed in claim 3, characterised in that, The reflecting plate (19) is further included, and two reflecting plates (19) are arranged on the moving plate (1).

5. A road maintenance patching device as claimed in claim 4, characterised in that The placing rack (20) is further included, two placing racks (20) are fixedly connected on the moving plate (1), and the spraying gun (6) is placed on the two placing racks (20).

6. A road maintenance patching device as claimed in claim 5, characterised in that, The anti-skid sleeve (21) is further included, and the anti-skid sleeve (21) is sleeved on the push rod (2).

Citation Information

Patent Citations

  • Novel crack repairing device for road maintenance

    CN219240231U