Crack treatment device for highway engineering

Abstract

The invention belongs to the field of pavement construction, and particularly relates to a crack treatment device for highway engineering, which comprises a moving seat, a crack filling device arranged on the moving seat and an impurity removing device for cleaning cracks. The seam filling device comprises a material tank arranged on the base, a feeding channel is arranged at the top end of the material tank, a sealing cover capable of being opened and closed is arranged on the feeding channel, one end of the material tank is communicated with a discharging channel with a valve, and the lowest end of the discharging channel is flush with the bottom end of the interior of the material tank. A conveying pump is arranged on the base and communicated with the material tank through a first connecting pipe, a first support is arranged on one side of the conveying pump, a spraying pipe is arranged on the first support, and a discharging port of the conveying pump is communicated with the spraying pipe through a second connecting pipe. By arranging the impurity removing device, the first motor in the impurity removing device drives the molding spring to rotate through the connecting rod, stubborn impurities in gaps are scattered, then the scattered impurities are blown out through the dust blowing device, and residues of the impurities in the gaps are reduced.

Description

Technical Field

[0001] This invention belongs to the field of road construction, and in particular relates to a crack treatment device for highway engineering. Background Technology

[0002] During the long-term service of highway engineering projects, various factors such as repeated traffic loads, temperature stress, material aging, and uneven settlement of the base layer inevitably lead to the formation of various cracks in the road surface. If these cracks are not properly treated in a timely manner, external moisture and impurities will seep down along the cracks, eroding the pavement structure and subgrade, accelerating pavement damage, significantly shortening the road's service life, and posing safety hazards. Currently, before crack filling and repair, the interior of the cracks must be thoroughly cleaned to remove stubborn impurities such as accumulated dust, debris, plant roots, and residues of old sealant. Currently, cleaning is done manually by operators using specialized hooks, scrapers, and other tools to remove debris from the cracks. While this method is highly targeted, it suffers from extremely low cleaning efficiency, high labor intensity, and slow operation speed. Alternatively, a high-pressure airflow generated by an air compressor can be sprayed directly onto the cracks, using wind power to blow out loose impurities. This method is relatively efficient, but the cleaning is not thorough. Summary of the Invention

[0003] The purpose of this invention is to provide a crack treatment device for highway engineering, so as to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of a crack treatment device for highway engineering according to the present invention is as follows: A crack treatment device for highway engineering includes a movable base, on which a crack repair device and a debris removal device for cleaning the cracks are mounted. The movable base includes a base with four casters at each of its four corners, providing support and facilitating movement. A handle is located at one end of the base. The crack repair device includes a material tank mounted on the base, with a feed channel at the top of the tank, a closable cover on the feed channel, and a discharge channel with a built-in valve connected to one end of the tank, the lowest point of which is flush with the bottom of the tank's interior. A delivery pump is mounted on the base, connected to the material tank via a first connecting pipe. A first support is located on one side of the delivery pump, and a spray pipe is mounted on the first support. The discharge port of the delivery pump is connected to the spray pipe via a second connecting pipe. A placement opening is located on the side of the base opposite the material tank, through which the spray pipe on the first support passes. The impurity removal device includes a dispersing device and a dust blowing device. The dispersing device includes a second bracket on the base, a driving device on the second bracket, and a plastic spring on the driving device.

[0005] Furthermore, the second support has a guide rail on its side wall, a support arm that slides vertically on the guide rail, a base plate at the bottom of the guide rail, an electric push rod between the base plate and the support arm, and a debris removal device on the support arm.

[0006] Furthermore, the drive device includes a first motor located at the top of the support arm, a connecting rod vertically rotating on the support arm, and a plastic spring located at the bottom of the connecting rod. The first motor is connected to the connecting rod.

[0007] Furthermore, the second support is equipped with a dust blowing device, which includes a hair dryer located at the top of the second support and a blow pipe located on the second support. The blow pipe and the hair dryer are connected through an air duct.

[0008] Furthermore, the blowpipe is a bendable spring tube.

[0009] Furthermore, the nozzle is equipped with a pressure plate, which is flush with the tip of the nozzle. A spring is located on the nozzle between the pressure plate and the first support. A limiting component is provided on the nozzle to fix it to the first support.

[0010] Furthermore, the limiting component includes a guide strip and a protrusion disposed along the circumference of the nozzle and on the outer wall of the nozzle. The guide strip has a gap with the bottom end of the nozzle, and a first bracket for the guide strip is slidably disposed, with a groove on the first bracket for the guide strip to slide. The height of the protrusion is less than the height of the guide strip, and the guide strip and the protrusion are arranged in a cross shape. A handle is provided at the top of the nozzle.

[0011] Furthermore, the material tank is equipped with a stirring device, which includes a support shaft rotatably mounted on the material tank along its axis. One end of the support shaft passes through the material tank and extends outward. A second motor connected to the extended end of the support shaft is located at one end of the material tank. Stirring rods are radially distributed on the support shaft inside the material tank, and multiple stirring rods are distributed along the axis of the support shaft.

[0012] The crack treatment device for highway engineering of the present invention has the following advantages: This invention incorporates a debris removal device in front of the movement path of the joint repair device. The first motor in the debris removal device drives a plastic spring to rotate via a connecting rod. The plastic spring, which extends into the gap, rotates irregularly to break up stubborn impurities in the gap. Then, a dust blowing device blows out the broken-up impurities, thereby reducing the residue of impurities in the gap. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a crack treatment device for highway engineering according to the present invention; Figure 2 This is a schematic diagram of the impurity removal device of the present invention; Figure 3This is a schematic diagram of the nozzle, pressure plate, first bracket, protrusion, and guide strip of the present invention; Figure 4 This is a schematic diagram of the stirring device of the present invention.

[0014] Explanation of markings in the diagram: 1. Base; 2. Material tank; 3. Conveying pump; 4. First connecting pipe; 5. Spray nozzle; 6. First bracket; 7. Second connecting pipe; 8. Handle; 9. Pressure plate; 10. Spring; 11. Protrusion; 12. Guide strip; 13. Second bracket; 14. Air duct; 15. Blower; 16. Bourdon tube; 17. Support arm; 18. First motor; 19. Connecting rod; 20. Plastic spring; 21. Guide rail; 22. Base plate; 23. Electric push rod; 24. Caster wheel; 25. Handle; 26. Placement port; 27. Feeding channel; 28. Discharge channel; 29. ​​Support shaft; 30. Stirring rod; 31. Second motor. Detailed Implementation

[0015] To better understand the purpose, structure, and function of this invention, a crack treatment device for highway engineering will be described in further detail below with reference to the accompanying drawings.

[0016] like Figures 1 to 4 As shown, this invention discloses a crack treatment device for highway engineering, comprising a movable base, on which a crack filling device and a debris removal device for cleaning the crack are mounted. Moving the movable base moves the entire device, and during this movement, the crack filling device and debris removal device are activated. The debris removal device removes impurities from the crack, providing a clean and well-bonded interface for subsequent filling. Then, the crack filling device fills the crack with a filler material (asphalt or cement). This device integrates crack cleaning and crack filling, achieving continuous operation of the crack cleaning-cracking process, significantly reducing the time spent on equipment switching and repositioning in traditional processes, and greatly improving the efficiency of road maintenance construction.

[0017] The aforementioned movable base includes a base 1, with four casters 24 at each of the four corners of its bottom surface. These casters support the base 1 and facilitate movement. A handle 25 is located at one end of the base 1, allowing for easy manual movement. The seam-sealing device mounted on the movable base includes a material tank 2 on the base 1. A feeding channel 27 is located at the top of the material tank 2, facilitating the addition of materials. A discharge channel 28 with a built-in valve is connected to one end of the material tank 2, with its lowest point flush with the bottom of the tank 2's interior. The discharge channel 28 facilitates the discharge of materials and allows for quick drainage of wastewater during cleaning.

[0018] like Figure 1 and Figure 2As shown, a conveying pump 3 is mounted on the base 1, and the conveying pump 3 is connected to the material tank 2 via a first connecting pipe 4. A first support 6 is located on one side of the conveying pump 3, and a spray pipe 5 is mounted on the first support 6. The discharge port of the conveying pump 3 is connected to the spray pipe 5 via a second connecting pipe 7. A placement port 26 is opened on the side of the base 1 opposite to the material tank 2, and the spray pipe 5 on the first support 6 passes through the placement port 26. When the operator turns on the conveying pump 3, the conveying pump 3 pumps the material stored in the material tank 2 out through the first connecting pipe 4 and delivers it to the spray pipe 5 passing through the placement port 26 of the base 1. Under pumping pressure, the material is precisely sprayed or poured into the cleaned cracks from the end of the spray pipe 5 at a controllable flow rate and pressure to complete the crack filling treatment. The conveying pump 3 is connected to an external power supply via a controller, which can control the pumping speed and pumping pressure of the conveying pump 3 to more accurately control the discharge volume of the spray pipe 5.

[0019] like Figure 3 As shown, the nozzle 5 is equipped with a pressure plate 9, which is flush with the tip of the nozzle 5. When filling the crack with material using the nozzle 5, the nozzle 5 can be inserted into the crack. It should be noted that when the nozzle 5 is inserted into the crack, the pressure plate 9 is in contact with the ground. The material entering the crack through the nozzle 5 will be smoothed by the pressure plate 9, and the pressure plate 9 will also be used to coat the material that has been removed from the crack, further improving the density of the material in the crack. A spring 10 is also provided on the nozzle 5 between the pressure plate 9 and the first support 6. A limiting component is provided on the nozzle 5 to fix it to the first support 6. The limiting component includes a guide strip 12 and a protrusion 11 that are circumferentially arranged on the outer wall of the nozzle 5. There is a gap between the guide strip 12 and the bottom end of the nozzle 5, and the guide strip 12 is slidably arranged on the first support 6, with a groove on the first support 6 for the guide strip 12 to slide. The height of the protrusion 11 is less than the height of the guide strip 12, and the guide strip 12 and the protrusion 11 are arranged in a cross shape. The spring 10 provides stable support for the nozzle 5, ensuring that the pressure plate 9 is always in contact with the ground.

[0020] like Figure 3 As shown, the elastic potential energy of spring 10 supports the pressure plate 9 and the first bracket 6. At this time, the protrusion 11 is limited to the top surface of the first bracket 6. When the pressure plate 9 needs to be lifted off the ground and the nozzle 5 is not filling the crack with material, the nozzle 5 is pulled up. The guide strip 12 follows its corresponding groove until it disengages from its corresponding groove. Then, the nozzle 5 is rotated, causing the guide strip 12 to be misaligned with the groove. Releasing the nozzle 5 will limit the guide strip 12 to the nozzle 5, thus achieving the purpose of adjusting the height of the nozzle 5 relative to the ground. When the nozzle 5 needs to be lowered, the nozzle 5 is rotated in the opposite direction, and the guide strip 12 is aligned with the groove. The nozzle 5 is then released, and it descends under the action of spring 10. After it descends to the bottom, the protrusion 11 and the first bracket 6 will limit the nozzle 5. To facilitate lifting the nozzle 5, a handle 8 is provided at the top of the nozzle 5.

[0021] As a further improvement, a stirring device is provided inside the material tank 2. This stirring device includes a support shaft 29 rotatably mounted on the material tank 2 along its axis. One end of the support shaft 29 passes through the material tank 2 and extends outward. A second motor 31, connected to the extended end of the support shaft 29, is located at one end of the material tank 2. The second motor 31 is connected to an external power supply via a controller. Stirring rods 30 are radially distributed along the support shaft 29 inside the material tank 2, and multiple stirring rods 30 are also distributed along the axis of the support shaft 29. Starting the second motor 31 drives the support shaft 29 and the multi-layered radially distributed stirring rods 30 to rotate uniformly within the material tank 2. This process continuously shears and stirs the material. Stirring effectively prevents aggregate settling and component separation caused by static transport, ensuring material uniformity.

[0022] Preferably, the impurity removal device includes a dispersing device and a dust blowing device. The dispersing device includes a second support 13 mounted on the base 1, a drive device mounted on the second support 13, and a molded spring 20 made of steel wire mounted on the drive device. The flexible spiral structure of the molded spring 20 can penetrate and adapt to irregular cracks, physically dispersing deep-seated hardened impurities. This is something that brushing or simply blowing air in the prior art cannot do, thus solving the problem of incomplete cleaning of impurities in cracks. When the dispersing device is activated, the drive device drives the molded spring 20 to rotate. The spiral structure of the molded spring 20, like a flexible drill bit, penetrates deep into the crack, stirring, dispersing, and peeling away hardened dust, embedded gravel, and other stubborn impurities, preparing for thorough dust removal.

[0023] The second support 13 has a guide rail 21 on its side wall, and a support arm 17 slides vertically on the guide rail 21. A base plate 22 is located at the bottom end of the guide rail 21, and an electric push rod 23 is located between the base plate 22 and the support arm 17. A debris removal device is located on the support arm 17. The electric push rod 23 drives the support arm 17 to move vertically and smoothly along the guide rail 21 on the second support 13. The raising and lowering of the support arm 17 drives the entire disintegration device at its end to move synchronously, thereby precisely controlling the working height of the molding spring 20. The driving device includes a first motor 18 located at the top of the support arm 17, a connecting rod 19 vertically rotating on the support arm 17, and the molding spring 20 located at the bottom end of the connecting rod 19. The first motor 18 is connected to the connecting rod 19. When the molding spring 20 is adjusted to a suitable depth, the first motor 18 is started. The first motor 18 drives the connecting rod 19 to rotate at high speed, causing the molding spring 20 at the bottom end to rotate accordingly. The flexible helical structure of the molded spring 20 actively cuts into and penetrates deep into the crack, powerfully breaking up, loosening, and peeling away internal hardened impurities and embedded materials. The electric actuator 23 allows for fine-tuning of the downward pressure during operation.

[0024] The combination of guide rail 21 and electric push rod 23 upgrades the crack clearing device from a fixed type to a highly digitally adjustable intelligent terminal. Specifically, the electric push rod 23 is connected to an external power supply via a controller, which can control the extension and retraction length of the electric push rod 23. The operator can set and adjust the cutting depth of the molding spring 20 in real time and precisely according to the actual condition of the cracks. For deep cracks, it ensures thorough cleaning without leaving any blind spots. For shallow cracks, it avoids excessive cutting and damage to the intact road surface.

[0025] The second support 13 is equipped with a blowing device, which includes a blower 15 located at the top of the second support 13 and a blowpipe on the second support 13. The blowpipe and the blower 15 are connected by an air duct 14. The blower 15 at the top of the second support 13 generates a high-pressure airflow, which is delivered to the blowpipe mounted on the support through the air duct 14. The blowpipe concentrates and directs the airflow onto the freshly treated crack area, instantly and thoroughly blowing away all loosened impurities from the crack, forming a clean, dry working interface with optimal adhesion. The combined cleaning mode of mechanical cleaning by the molded spring 20 and pneumatic cleaning by high-pressure airflow ensures that the crack interface reaches a higher cleaning standard. The blowpipe is a bendable spring tube 16. The bendability of the spring tube 16 allows the operator or auxiliary mechanism to freely and flexibly adjust the outlet angle and direction of the blowpipe. This allows it to precisely target the cracked area after being dispersed by the plastic spring 20. Furthermore, during the equipment's movement, when encountering local road bulges or passing through joints, the spring tube 16, due to its flexibility, can passively bend and make way, effectively buffering and absorbing the impact of accidental collisions or road undulations. This avoids deformation, breakage, or loosening and leakage at the connection points of rigid pipes caused by impacts, greatly improving the reliability and durability of the blower in non-ideal road conditions.

[0026] Working Principle: Before operation, material is added to tank 2 through the feeding channel 27 at the top of tank 2. The second motor 31 is started, driving the support shaft 29 and the multi-layered radially distributed stirring rods 30 on the shaft to rotate at a constant speed inside the tank. This process continuously stirs the material. The operator pushes the device along the crack direction using handle 25 and starts the impurity removal device. The operator sets the extension and retraction of the electric push rod 23 according to the depth of the crack and the degree of contamination through the controller. The electric push rod 23 drives the support arm 17 to precisely rise and fall along the guide rail 21 on the second bracket 13, thereby adjusting the entire dispersing device fixed to the end of the support arm 17 to the working height. The first motor 18 is started, driving the connecting rod 19 and the plastic spring 20 connected to its bottom to rotate at high speed. The plastic spring 20, lowered to the appropriate depth, mechanically disperses, loosens, and completely removes the impurities inside the crack. Immediately after the dispersing device, the impurity blowing device is started. The blower 15 located at the top of the second bracket 13 generates a high-pressure airflow, which is delivered to the blow pipe through the air duct 14. The blowpipe is designed as a flexible spring tube 16, allowing the operator to flexibly adjust its outlet angle and direction to precisely align it with the freshly treated crack area. High-pressure airflow is concentrated and directed into the crack, instantly and thoroughly blowing away all loosened impurities, creating a clean interface. The cleaned crack is then moved to the filling station with the equipment. The delivery pump 3 pumps the material into the blowpipe 5 through the first connecting pipe 4. The material is continuously and stably pressed into the depths of the cleaned crack from the end of the blowpipe 5. Simultaneously, the pressure plate 9, flush with the nozzle, moves with the equipment, scraping and smoothing any excess material overflowing from the crack, further improving the surface density and aesthetics of the filler.

[0027] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A crack treatment device for highway engineering, characterized in that: It includes a movable base, on which a crack-sealing device and a debris-removing device for cleaning cracks are located; The mobile seat includes a base (1), and a caster wheel (24) is provided at each of the four corners of the bottom surface of the base (1). The four caster wheels (24) can support the base (1) and facilitate the movement of the mobile seat. A handle (25) is provided at one end of the base (1). The patching device includes a material tank (2) on a base (1), a feeding channel (27) at the top of the material tank (2), and a cover that can be opened and closed on the feeding channel (27), and a discharge channel (28) with a valve connected to one end of the material tank (2), and the lowest end of the discharge channel (28) is flush with the bottom of the inside of the material tank (2); A conveying pump (3) is provided on the base (1). The conveying pump (3) is connected to the material tank (2) through a first connecting pipe (4). A first bracket (6) is provided on one side of the conveying pump (3), and a spray pipe (5) is provided on the first bracket (6). The discharge port of the conveying pump (3) is connected to the spray pipe (5) through a second connecting pipe (7). The base (1) has a placement port (26) on the side opposite to the material tank (2), and the nozzle (5) on the first bracket (6) passes through the placement port (26). The impurity removal device includes a dispersing device and a dust blowing device. The dispersing device includes a second bracket (13) on the base (1), a driving device is provided on the second bracket (13), and a plastic spring (20) is provided on the driving device.

2. The crack treatment device for highway engineering according to claim 1, characterized in that: The second bracket (13) has a guide rail (21) on its side wall, and a support arm (17) is vertically slidably mounted on the guide rail (21). A base plate (22) is mounted at the bottom end of the guide rail (21). An electric push rod (23) is mounted between the base plate (22) and the support arm (17). A cleaning device is mounted on the support arm (17).

3. The crack treatment device for highway engineering according to claim 2, characterized in that: The drive device includes a first motor (18) located at the top of the support arm (17), a connecting rod (19) located on the support arm (17) for vertical rotation, and a plastic spring (20) located at the bottom of the connecting rod (19). The first motor (18) is connected to the connecting rod (19).

4. A crack treatment device for highway engineering according to claim 3, characterized in that: The second bracket (13) is provided with a dust blowing device, which includes a blower (15) located at the top of the second bracket (13) and a blow pipe located on the second bracket (13). The blow pipe and the blower (15) are connected through a duct (14).

5. A crack treatment device for highway engineering according to claim 4, characterized in that: The blowpipe is a bendable spring tube (16).

6. A crack treatment device for highway engineering according to claim 1, characterized in that: The nozzle (5) is provided with a pressure plate (9), which is flush with the top of the nozzle of the nozzle (5). A spring (10) is provided on the nozzle (5) between the pressure plate (9) and the first bracket (6). A limiting component is provided on the nozzle (5) so that it can be fixed on the first bracket (6).

7. A crack treatment device for highway engineering according to claim 6, characterized in that: The limiting component includes a guide strip (12) and a protrusion (11) along the circumference of the nozzle (5) and disposed on the outer wall of the nozzle (5). There is a gap between the guide strip (12) and the bottom end of the nozzle (5), and the guide strip (12) is slidably disposed on the first bracket (6), and a groove for the guide strip (12) to slide is opened on the first bracket (6). The height of the bump (11) is less than the height of the guide strip (12), and the guide strip (12) and the bump (11) are arranged in a cross shape; A handle (8) is provided at the top of the nozzle (5).

8. A crack treatment device for highway engineering according to claim 6, characterized in that: The material tank (2) is equipped with a stirring device, and the stirring device includes a support shaft (29) that is rotatably mounted on the material tank (2) along the axis of the material tank (2). One end of the support shaft (29) passes through the material tank (2) and extends outward. A second motor (31) is provided at one end of the material tank (2) and connected to the extended end of the support shaft (29). Agitator rods (30) are radially distributed on the support shaft (29) inside the material tank (2), and multiple agitator rods (30) are distributed along the axis of the support shaft (29).

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