Road crack pouring device

Abstract

The utility model discloses a road crack pouring device which is characterized in that a cutting mechanism, a sweeping mechanism, an asphalt hot melting box, a scraping mechanism and a rolling mechanism are sequentially arranged on a cart, so that in the process that the cart runs along the road crack direction, the road crack is trimmed through the cutting mechanism before asphalt is poured; the cleaning mechanism is used for cleaning dust on the road cracks, then the conveying pipe is communicated with the nozzle so that hot asphalt in the asphalt hot melting box can be poured into the road cracks, and after the asphalt is poured, redundant asphalt overflowing out of the road cracks is scraped away through the scraping mechanism. Finally, the road crack poured with the asphalt is compacted and ground to be flat through the rolling mechanism, the processes of grooving, cleaning, crack pouring, scraping, compacting and the like of the road crack are completed through one device, other equipment or manual work does not need to be additionally arranged for related operation, the road crack pouring operation can be carried out by one person holding the trolley, the labor cost is reduced, and the working efficiency is improved. The construction quality can be conveniently controlled.

Description

Technical Field

[0001] This utility model belongs to the field of highway maintenance technology and relates to a crack sealing machine, specifically a road crack sealing device. Background Technology

[0002] Cracks are one of the main forms of early-stage defects on highways, with linear cracks such as transverse and longitudinal cracks being the most common. Crack sealing technology is a treatment technique for these defects, encompassing sealing materials, equipment, and processes. The crack sealing machine is the core equipment in this technology. Its function is to fill the cracks by evenly injecting sealant into the grooves after the initial grooving and cleaning steps, thus completing the crack repair.

[0003] Existing crack sealing machines have relatively limited functionality. First, before sealing, additional grooving equipment is needed to pre-treat and clean the cracks, which affects the efficiency of the sealing process. Moreover, the multiple pieces of equipment are inconvenient to carry, require a large number of personnel, and are not conducive to project control and management. Second, after sealing, the cracks are leveled with shovels or compacted by vehicles. This method of sealing results in an uneven and unsightly finish, often leading to material waste, road pollution, low sealing efficiency, and wasted time and manpower. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a road crack sealing device that enables a single device to complete the processes of grooving, cleaning, sealing, scraping, and compacting of road cracks, thereby improving the efficiency of crack sealing and reducing labor costs.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A road crack sealing device includes a trolley, an asphalt hot melt box mounted on the trolley, and a nozzle connected to the asphalt hot melt box via a delivery pipe. As the trolley travels along the road crack, hot asphalt in the asphalt hot melt box is injected into the road crack through the nozzle. A cleaning mechanism is provided at the front of the delivery pipe to remove dust from both sides of the road crack before asphalt is injected. A scraping mechanism is provided at the rear of the delivery pipe to scrape off excess asphalt that overflows from the road crack after asphalt is injected. A compaction mechanism is provided at the rear of the scraping mechanism to compact the road crack after asphalt has been poured.

[0007] Furthermore, spiral heating wires are wound around the periphery of the conveying pipe to heat and keep the asphalt flowing inside the conveying pipe warm.

[0008] Furthermore, a solenoid valve is installed inside the delivery pipe to regulate the flow rate of asphalt passing through the pipe.

[0009] Furthermore, the sweeping mechanism includes two opposing rollers and brushes evenly distributed around the rollers. The two ends of the rollers are connected to the bottom of the trolley via mounting plates. The rollers are rotatably connected to the mounting plates via a rotating shaft and rotate under the drive of a first motor to sweep the dust on both sides of the road cracks outward.

[0010] Furthermore, the scraping mechanism includes a sleeve connected to the bottom of the trolley, a telescopic rod slidably connected inside the sleeve, and a scraper connected to the bottom of the telescopic rod. A spring is sleeved on the telescopic rod, and the two ends of the spring are connected to the sleeve and the scraper respectively, so that the scraper keeps in contact with the road surface and scrapes off the excess asphalt that overflows from the road cracks.

[0011] Furthermore, the bottom of the scraper is provided with an L-shaped shovel plate. One end of the shovel plate is connected to the scraper to form a receiving cavity between the scraper and the shovel plate. The other end of the shovel plate has a bevel structure so that the scraped asphalt enters the receiving cavity along the bevel.

[0012] Furthermore, the compaction mechanism includes a hydraulic cylinder and a pressure plate connected to the bottom of the hydraulic cylinder. The pressure plate is driven by the hydraulic cylinder to press down, thereby compacting the road cracks that have been poured with asphalt.

[0013] Furthermore, the compaction mechanism also includes a second motor installed at the bottom of the trolley, and a hydraulic cylinder connected to the output shaft of the second motor to drive the pressure plate to rotate and smooth the compacted road cracks.

[0014] Furthermore, it also includes a cutting mechanism located in front of the sweeping mechanism to linearly cut irregular road cracks before asphalt is poured in and to grind the cut cracks smooth.

[0015] Furthermore, the cutting mechanism includes two opposing rotating plates and a cutting wheel rotatably connected to one end of the rotating plates. The cutting wheel is driven by a third motor to linearly cut the road cracks. The other end of the rotating plate is hinged to the front end of the trolley to adjust the cutting height of the cutting wheel under the drive of a fourth motor.

[0016] The beneficial effects of this utility model are as follows: The road crack sealing device provided by this utility model, by sequentially setting a cutting mechanism, a cleaning mechanism, an asphalt hot melt box, a scraping mechanism, and a compaction mechanism on a trolley, allows the road crack to be trimmed by the cutting mechanism before asphalt is poured in, and the cleaning mechanism to clean the dust on the road crack during the trolley's movement along the road crack direction. Then, the hot asphalt in the asphalt hot melt box is poured into the road crack through the delivery pipe connected to the nozzle. After the asphalt is poured in, the scraping mechanism scrapes off the excess asphalt overflowing from the road crack. Finally, the compaction mechanism compacts and grinds the asphalt-filled road crack. This device completes the processes of grooving, cleaning, sealing, scraping, and compacting of road cracks with one device, without the need for additional equipment or manual labor. One person can carry out the road crack sealing operation by holding the trolley, reducing labor costs and facilitating the control of construction quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cleaning mechanism of this utility model.

[0019] Figure 3 This is a schematic diagram of the scraping mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the compaction mechanism of this utility model.

[0021] Figure 5 This is a schematic diagram of the cutting mechanism of this utility model. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1As shown, this utility model provides a road crack sealing device, including a trolley 1, an asphalt hot melt box 2 installed on the trolley 1, and a nozzle 4 connected to the asphalt hot melt box 2 through a delivery pipe 3. As the trolley 1 travels along the road crack direction, hot asphalt in the asphalt hot melt box 2 is injected into the road crack through the nozzle 4. A cleaning mechanism 5 is provided on the front side of the delivery pipe 3 to sweep away dust on both sides of the road crack before injecting asphalt. A scraping mechanism 6 is provided on the rear side of the delivery pipe 3 to scrape off excess asphalt that overflows from the road crack after injecting asphalt. A compaction mechanism 7 is provided on the rear side of the scraping mechanism 6 to compact the road crack after asphalt has been poured.

[0024] The asphalt hot melt box 2 is used to provide asphalt (asphalt mortar) at the required temperature. It is equipped with a paddle-type forced agitator and a grid-type heat-conducting coil to ensure uniform heating of the asphalt material. Heating is indirect via a small gas-fired heater using heat transfer oil, and the temperature is automatically adjustable. To ensure rapid and uniform melting of the asphalt, the agitator is activated when the asphalt reaches 80-100℃ (thinning). A spiral heating wire 31 is wound around the perimeter of the conveying pipe 3 to heat and maintain the temperature of the asphalt flowing within it, preventing solidification and blockage due to low ambient temperatures. A solenoid valve 32 is installed inside the conveying pipe 3 to adjust the flow rate of asphalt according to the size of gaps in the road surface.

[0025] like Figure 2 As shown, the cleaning mechanism 5 includes two opposing rollers 51 and brushes 52 evenly distributed around the rollers 51. The two ends of the rollers 51 are connected to the bottom of the trolley 1 through mounting plates 53. The rollers 51 are rotatably connected to the mounting plates 53 through a rotating shaft and rotate under the drive of the first motor 54. The two rollers 51 rotate towards each other to sweep away the dust on both sides of the road crack from the inside out and to both sides, thereby improving the effect of subsequent crack sealing operations.

[0026] like Figure 3 As shown, the scraping mechanism 6 includes a sleeve 61 connected to the bottom of the trolley 1, a telescopic rod 62 slidably connected inside the sleeve 61, and a scraper 63 connected to the bottom of the telescopic rod 62. A spring 64 is fitted on the telescopic rod 62, with both ends of the spring 64 connected to the sleeve 61 and the scraper 63 respectively, so that the scraper 63 keeps in contact with the road surface and scrapes away excess asphalt overflowing from the road cracks, reducing manual work by construction workers and thus reducing their labor intensity. An L-shaped shovel 65 is provided at the bottom of the scraper 63. One end of the shovel 65 is connected to the scraper 63 to form a receiving cavity between the scraper 63 and the shovel 65. The other end of the shovel 65 has a sloped structure so that the scraped asphalt enters the receiving cavity along the slope, realizing the recovery of excess asphalt.

[0027] like Figure 4As shown, the compaction mechanism 7 includes a hydraulic cylinder 71 and a pressure plate 72 connected to the bottom of the hydraulic cylinder 71. The pressure plate 72 is driven downward by the hydraulic cylinder 71 to compact the road cracks that have been filled with asphalt and prevent them from cracking again. The compaction mechanism 7 also includes a second motor 73 installed at the bottom of the trolley 1. The hydraulic cylinder 71 is connected to the output shaft of the second motor 73 so that the pressure plate 72 is rotated under the drive of the second motor 73 to smooth the compacted road cracks.

[0028] The road crack sealing device also includes a cutting mechanism 8 located in front of the sweeping mechanism 5 to linearly cut irregular road cracks before asphalt is poured in and to grind the cut cracks smooth. Figure 5 As shown, the cutting mechanism 8 includes two opposing rotating plates 81 and a cutting wheel 82 rotatably connected to one end of the rotating plates 81. The cutting wheel 82 is driven by a third motor 83 to linearly cut the road cracks, which facilitates subsequent crack sealing operations. The other end of the rotating plate 81 is hinged to the front end of the trolley 1 to adjust the cutting height of the cutting wheel 82 under the drive of a fourth motor 84.

[0029] When this utility model is in operation, road maintenance personnel push a cart 1 along the direction of the road crack. Before pouring asphalt, the irregular road crack is first linearly cut by the cutting mechanism 8 and the cut crack is then ground smooth. Then, the dust generated by the cutting is swept away to both sides by the cleaning mechanism 5. Then, the hot asphalt in the asphalt hot melt box 2 is poured into the road crack through the nozzle 4. After pouring the asphalt, the excess asphalt overflowing from the road crack is scraped off by the scraping mechanism 6. Finally, the road crack that has been poured with asphalt is compacted and ground smooth by the rolling mechanism 7.

[0030] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A road crack sealing device, characterized in that, The device includes a trolley (1), an asphalt hot melt box (2) mounted on the trolley (1), and a nozzle (4) connected to the asphalt hot melt box (2) via a delivery pipe (3). As the trolley (1) travels along the road crack direction, hot asphalt in the asphalt hot melt box (2) is injected into the road crack through the nozzle (4). A cleaning mechanism (5) is provided on the front side of the delivery pipe (3) to sweep away dust on both sides of the road crack before injecting asphalt. A scraping mechanism (6) is provided on the rear side of the delivery pipe (3) to scrape away excess asphalt that overflows from the road crack after injecting asphalt. A compaction mechanism (7) is provided on the rear side of the scraping mechanism (6) to compact the road crack that has been injected with asphalt.

2. The road crack sealing device according to claim 1, characterized in that, Spiral heating wires (31) are wound around the periphery of the conveying pipe (3) to heat and keep the asphalt flowing inside the conveying pipe (3).

3. The road crack sealing device according to claim 1, characterized in that, A solenoid valve (32) is installed inside the delivery pipe (3) to regulate the flow rate of asphalt passing through the delivery pipe (3).

4. The road crack sealing device according to claim 1, characterized in that, The cleaning mechanism (5) includes two opposing rollers (51) and brushes (52) evenly distributed around the rollers (51). The two ends of the rollers (51) are connected to the bottom of the trolley (1) through mounting plates (53). The rollers (51) are rotatably connected to the mounting plates (53) through a rotating shaft and rotate under the drive of the first motor (54) to sweep the dust on both sides of the road cracks outward.

5. The road crack sealing device according to claim 1, characterized in that, The scraping mechanism (6) includes a sleeve (61) connected to the bottom of the trolley (1), a telescopic rod (62) slidably connected in the sleeve (61), and a scraper (63) connected to the bottom of the telescopic rod (62). A spring (64) is sleeved on the telescopic rod (62), and the two ends of the spring (64) are connected to the sleeve (61) and the scraper (63) respectively, so that the scraper (63) keeps in contact with the road surface and scrapes away the excess asphalt overflowing from the road cracks.

6. The road crack sealing device according to claim 5, characterized in that, The scraper (63) has an L-shaped shovel (65) at the bottom. One end of the shovel (65) is connected to the scraper (63) to form a receiving cavity between the scraper (63) and the shovel (65). The other end of the shovel (65) has a slope structure so that the scraped asphalt enters the receiving cavity along the slope.

7. The road crack sealing device according to claim 1, characterized in that, The compaction mechanism (7) includes a hydraulic cylinder (71) and a pressure plate (72) connected to the bottom of the hydraulic cylinder (71). The pressure plate (72) is driven down by the hydraulic cylinder (71) to compact the cracks in the road that have been filled with asphalt.

8. The road crack sealing device according to claim 7, characterized in that, The compaction mechanism (7) also includes a second motor (73) installed at the bottom of the trolley (1), and a hydraulic cylinder (71) connected to the output shaft of the second motor (73) to drive the pressure plate (72) to rotate under the drive of the second motor (73) and smooth the compacted road cracks.

9. The road crack sealing device according to claim 1, characterized in that, It also includes a cutting mechanism (8) located in front of the sweeping mechanism (5) to linearly cut irregular road cracks before asphalt is poured in and to grind the cut cracks smooth.

10. The road crack sealing device according to claim 9, characterized in that, The cutting mechanism (8) includes two opposing rotating plates (81) and a cutting wheel (82) rotatably connected to one end of the rotating plates (81). The cutting wheel (82) is driven by a third motor (83) to linearly cut road cracks. The other end of the rotating plate (81) is hinged to the front end of the trolley (1) to adjust the cutting height of the cutting wheel (82) under the drive of a fourth motor (84).

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