A highway pavement maintenance crack pouring equipment

Abstract

The utility model discloses a kind of crack pouring equipment for highway pavement maintenance, is related to highway pavement maintenance equipment technical field, including chassis frame, the top surface of chassis frame is fixedly installed with smelt material box, the side of smelt material box is fixedly connected with smoke exhaust passage, the side of smelt material box is fixedly installed with discharge pipe, the outer wall of smelt material box is fixedly connected with guide plate, and guide plate is located below discharge pipe;The bottom end of guide plate is installed with crack pouring guide frame, the side of crack pouring guide frame is fixedly connected with control rod, and control rod is rotatably connected with chassis frame, the other side of crack pouring guide frame is rotatably connected with joint assembly, through joint assembly, remove silt and dust in crack, use pointed head joint assembly and elastic expansion plate, break and remove hard impurities such as large rock in crack, cooperate with dust removal assembly through steel wire brush wheel and high pressure airflow, remove seam wall dust and blow away debris, ensure that crack pouring material and seam wall are directly closely contacted, form firm bonding interface.

Description

Technical Field

[0001] This utility model relates to the technical field of highway pavement maintenance equipment, specifically a crack sealing device for highway pavement maintenance. Background Technology

[0002] Highway pavement crack sealing equipment is a specialized maintenance machine used to repair pavement cracks. It injects heated and melted crack sealing material (such as asphalt crack sealant) into the pavement cracks under high pressure to fill and seal the gaps. This prevents rainwater, snow, and other substances from seeping into the roadbed, avoids crack expansion leading to pavement damage, and extends the service life of the highway.

[0003] The core workflow of highway pavement crack sealing equipment mainly includes three key steps: cleaning the crack, heating and melting the sealing material, and precise injection. This forms a closed-loop crack repair operation. First, professional crack cleaning tools are used to remove debris and moisture from the crack. Then, the sealing material is heated to a molten and fluid state. Finally, the high-pressure system of the equipment is used to precisely inject the sealing material into the crack, thereby sealing the crack and reinforcing the pavement, thus preventing the spread of the disease from the root. However, if the mud, gravel, dust and other debris in the cracks are not cleaned before grouting, it will directly damage the bonding conditions between the grouting material and the crack wall. The debris will form an isolation layer between the grouting material and the crack wall, affecting the adhesion between the grouting material and the crack wall. As a result, the sealing layer and the crack wall cannot form an integral load-bearing structure. Moreover, under the repeated rolling of vehicle loads and the thermal expansion and contraction caused by temperature changes, the sealing layer is prone to lifting, cracking or even falling off. This allows rainwater, snow and ice water to seep into the roadbed, thereby aggravating the expansion of cracks and causing secondary defects such as potholes and subsidence. It will also shorten the service life of the highway, increase maintenance costs and the frequency of repeated operations, and in severe cases, affect driving safety and comfort. Utility Model Content

[0004] The purpose of this invention is to provide a crack sealing device for highway pavement maintenance, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A crack sealing device for highway pavement maintenance includes a chassis frame, a molten material box fixedly installed on the top surface of the chassis frame, a smoke exhaust channel fixedly connected to one side of the molten material box, a discharge pipe fixedly installed on one side of the molten material box, and a guide plate fixedly connected to the outer wall of the molten material box, with the guide plate located below the discharge pipe. A crack filling guide frame is installed at the bottom of the guide plate. A control rod is fixedly connected to one side of the crack filling guide frame and is rotatably connected to the chassis frame. A crack cleaning component is rotatably connected to the other side of the crack filling guide frame.

[0006] As a further embodiment of this utility model, the crack cleaning component consists of a bracket, a scraping component, and a dust removal component. One end of the bracket is rotatably connected to the crack filling guide frame, and the other end is fixedly connected to the scraping component. The dust removal component is located between the crack filling guide frame and the scraping component and is fixedly connected to the bracket.

[0007] As a further embodiment of this utility model, the removal component includes a crack cleaning cone, which is located below one end of the support. One end of the crack cleaning cone is pointed, and the other end is rotatably connected to two sets of symmetrically and evenly distributed expansion plates via a pin. A cleaning brush is fixedly connected to the bottom surface of each set of expansion plates.

[0008] As a further embodiment of this utility model, the dust removal component includes a fixed pipe, which is fixedly connected to a bracket. An air storage block is rotatably sleeved on the outer wall of the fixed pipe. Multiple sets of telescopic arms are fixedly installed on the outer wall of the air storage block. A push frame is fixedly connected to the end of each set of telescopic arms away from the fixed pipe. A cleaning wheel is rotatably connected inside each push frame via a pin.

[0009] As a further embodiment of this utility model, an air jet is installed between every two sets of cleaning wheels, and each set of air jets is fixedly installed on the outer wall of the air storage block. The outer walls of both ends of the fixed tube are fitted with cover plates through bearings. Multiple sets of air blowing ports are fixedly installed on the outer walls of the cover plates, and each set of air blowing ports is connected to the inside of the air storage block.

[0010] As a further embodiment of this utility model, a throttle valve is fixedly sleeved on the outer wall of the discharge pipe, and a transmission rod is ball-hinged to the top of the throttle valve, with an operating rod ball-hinged to the end of the transmission rod away from the throttle valve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. When using the crack filling equipment of this utility model, the crack cleaning component removes mud, sand, gravel, and dust from the crack. The pointed crack cleaning cone and elastic expansion plate break up and remove large pieces of gravel and other hard debris from the crack. In conjunction with the dust removal component, the wire brush wheel and high-pressure airflow remove dust from the crack wall and blow away debris, ensuring that the crack filling material is in direct and close contact with the crack wall to form a strong bonding interface. This makes the sealing layer and the crack wall combine into an integral load-bearing structure, extending the service life of the highway, reducing maintenance costs, and improving driving safety and comfort.

[0012] 2. When using the crack filling equipment of this utility model, the molten crack filling material is received by the crack filling guide frame, and the operating control rod is precisely aligned with the cleaned crack to ensure that the material is accurately injected into the crack along the preset path, avoiding the problem of overflow or uneven filling, and ensuring the integrity of the filling coverage. Combined with the throttle valve, the material output can be flexibly adjusted according to the actual situation of the crack, effectively avoiding material waste or insufficient filling, and adapting to the crack repair needs under different working conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a crack sealing device for highway pavement maintenance.

[0014] Figure 2 This is a schematic diagram of the crack cleaning component in a crack sealing device for highway pavement maintenance.

[0015] Figure 3 This is a cross-sectional view of the removal component in a crack sealing device for highway pavement maintenance.

[0016] Figure 4 A cross-sectional view of the cleaning component in a crack sealing device for highway pavement maintenance. Figure 1 .

[0017] Figure 5 A cross-sectional view of the cleaning component in a crack sealing device for highway pavement maintenance. Figure 2 .

[0018] In the diagram: 1. Chassis frame; 2. Melting tank; 3. Exhaust duct; 4. Discharge pipe; 5. Guide plate; 6. Crack sealing guide frame; 7. Control rod; 8. Seam cleaning components; 81. Bracket; 82. Removal assembly; 821. Crack cleaning cone; 822. Expansion plate; 823. Cleaning brush; 824. Connecting plate; 825. Expansion spring; 826. Telescopic rod; 83. Dust removal assembly; 831. Fixed pipe; 832. Air storage block; 833. Telescopic arm; 834. Push frame; 835. Cleaning wheel; 836. Air nozzle; 837. Cover plate; 838. Air blowing port; 9. Casters; 10. Control panel; 11. Throttle valve; 12. Drive rod; 13. Operating lever. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1In this embodiment of the utility model, a crack sealing device for highway pavement maintenance includes a chassis frame 1. A melting tank 2 is fixedly installed on the top surface of the chassis frame 1 for containing and heating asphalt crack sealing material. A smoke exhaust channel 3 is fixedly connected to one side of the melting tank 2 for discharging the exhaust gas generated by the heating system. A discharge pipe 4 is fixedly installed on one side of the melting tank 2. A guide plate 5 is fixedly connected to the outer wall of the melting tank 2, and the guide plate 5 is located below the discharge pipe 4. A crack filling guide frame 6 is installed at the bottom of the guide plate 5 to guide the crack filling material to be injected into the road surface cracks accurately and evenly. A control rod 7 is fixedly connected to one side of the crack filling guide frame 6, and the control rod 7 is rotatably connected to the chassis frame 1 to control the crack filling direction of the crack filling guide frame 6. A crack cleaning component 8 is rotatably connected to the other side of the crack filling guide frame 6 to remove debris and clean the crack wall. It should be noted that four sets of moving wheels 9 are fixedly installed on the bottom surface of the chassis frame 1 by bolts, which can support the movement of the chassis frame 1. The interior of the melting tank 2 is equipped with a heating and temperature control system, a stirring device and a heat insulation layer to realize the storage, melting and heat preservation of the grouting material, and ensure the stability of the molten state of the grouting material. The outer wall of the melting tank 2 is fixedly installed with a control panel 10, which is used to control and display key parameters such as temperature and hydraulic pressure in real time (the melting tank 2 is existing technology, and its internal structure will not be described in detail here).

[0021] Please see Figure 2 The crack cleaning component 8 consists of a bracket 81, a scraping component 82, and a dust cleaning component 83. One end of the bracket 81 is rotatably connected to the crack filling guide frame 6, and the other end is fixedly connected to the scraping component 82. The dust cleaning component 83 is located between the crack filling guide frame 6 and the scraping component 82 and is fixedly connected to the bracket 81. It should be noted that the removal component 82 is used to remove larger stones, hard blocks and other obstacles in the crack, while the dust removal component 83 is used to brush away loose particles and dust from the crack wall to form a clean, rough surface.

[0022] Please see Figure 3 The removal component 82 includes a cleaning cone 821, which is located below one end of the support 81. One end of the cleaning cone 821 is pointed, and the other end is rotatably connected to two sets of symmetrically and evenly distributed expansion plates 822 via a pin, which are used to adjust the working width of the removal component 82. Each set of expansion plates 822 has a cleaning brush 823 fixedly connected to its bottom surface, which can simultaneously clean the residual impurities on the crack wall. It should be noted that a connecting plate 824 is fixedly connected to the side of the cleaning cone 821 near the expansion plate 822. The connecting plate 824 is located between the two sets of expansion plates 822, and the connecting plate 824 is fixedly connected to the corresponding side of the two sets of expansion plates 822 respectively through the expansion spring 825, so as to provide elastic expansion and reset force for the expansion plate 822. It should also be noted that a telescopic rod 826 is fixedly installed at the end of the bracket 81 away from the crack filling guide frame 6, which is used to adjust the working depth of the scraping component 82. The telescopic rod 826 consists of an outer tube, an inner rod and a telescopic spring. The outer tube is fixedly connected to the bracket 81, the inner rod is slidably inserted into the outer tube, and the telescopic spring is located between the two to provide a downward elastic preload for the inner rod. The bottom end of the inner rod is rotatably connected to the connecting plate 824 through a pin to ensure the adaptive adjustment capability of the scraping component 82 during operation. Large debris inside the crack is removed by the pointed crack cleaning cone 821. The adjustable-width expansion plate 822, together with the cleaning brush 823, expands the cleaning range and removes attached dust and debris. The telescopic rod 826 enables adaptive adjustment of the cleaning depth. The whole process efficiently and comprehensively removes debris from the crack, laying a clean foundation for the crack sealing operation.

[0023] Please see Figure 4 , Figure 5 The dust removal assembly 83 includes a fixed pipe 831, which is fixedly connected to a bracket 81. An air storage block 832 is rotatably sleeved on the outer wall of the fixed pipe 831. Multiple sets of telescopic arms 833 are fixedly installed on the outer wall of the air storage block 832. A push frame 834 is fixedly connected to the end of each telescopic arm 833 away from the fixed pipe 831. A cleaning wheel 835 is rotatably connected inside each push frame 834 through a pin. It should be noted that each telescopic arm 833 has the same structure as the telescopic rod 826, consisting of an outer tube, an inner rod, and a telescopic spring. The outer tube of the telescopic arm 833 is fixedly connected to the air storage block 832, the inner rod is slidably inserted into the outer tube, and the telescopic spring is located between the two to provide the inner rod with an elastic pre-tightening force for outward expansion. One end of the inner rod is fixedly connected to the push frame 834. It should also be noted that each cleaning wheel 835 consists of a rotating wheel and a wire brush. The cleaning wheel 835 is pushed down by the telescopic arm 833 to ensure thorough cleaning coverage. At the same time, each cleaning wheel 835 is independently equipped with a telescopic arm 833, which can flexibly adapt to gaps of different depths and undulations, ensuring cleaning adaptability and thoroughly removing dust and small impurities from the gaps, further improving the cleanliness of the cracks and ensuring the adhesion effect of the filling material to the crack wall. A jet nozzle 836 is installed between every two sets of cleaning wheels 835, and each set of jet nozzles 836 is fixedly installed on the outer wall of the air storage block 832. The outer walls of both ends of the fixed pipe 831 are fitted with cover plates 837 through bearings. Multiple sets of air blowing ports 838 are fixedly installed on the outer wall of the cover plate 837, and each set of air blowing ports 838 is connected to the inside of the air storage block 832. It should be noted that the jet nozzle 836 is connected to the interior of the air storage block 832 and is used to directly blow away residual dust in the gap. The inner cavity of the two sets of cover plates 837 is provided with a moving groove, and the pin inside the cleaning wheel 835 is embedded in the moving groove. It can be adapted to the telescopic arm 833 to drive the cleaning wheel 835 to flexibly extend and retract along the moving groove. One end of each set of air nozzles 838 passes through the cover plate 837 and is connected to the interior of the air storage block 832. It is used to further blow away the dust blown out of the gap from the gap area, ensuring that there is no dust residue in and around the gap, creating a clean environment for the bonding of the grouting material. It should also be noted that an air pump is fixedly installed on the bottom surface of the chassis frame 1, and the air pump is fixedly connected to the fixed pipe 831 through a pipe. The outer wall of the fixed pipe 831 has an air outlet hole, which is connected to the interior of the air storage block 832 to provide a continuous air source for the air jet 836 and the air blowing port 838.

[0024] Please see Figure 1 A throttle valve 11 is fixedly sleeved on the outer wall of the discharge pipe 4. A transmission rod 12 is ball-hinged to the top of the throttle valve 11. An operating rod 13 is ball-hinged to the end of the transmission rod 12 away from the throttle valve 11, which is used to control the opening and closing of the throttle valve 11.

[0025] The working principle of this utility model is as follows: When this utility model is in use, the chassis frame 1 is first supported by the movable wheels 9 and moved flexibly on the road. The operator manipulates the control lever 7 to adjust the direction of the crack filling guide frame 6 and aligns it with the crack to be repaired. At the same time, the heating and temperature control system and stirring device of the melting tank 2 are started through the control panel 10 to heat the internal asphalt crack filling material to a molten and flowing state. The insulation layer maintains the stable melting of the material, and the exhaust gas generated by heating is discharged through the smoke exhaust channel 3. The tip of the crack cleaning cone 821 is then inserted into the crack to break and loosen large gravel and other obstacles. Under the action of the expansion spring 825, the two expansion plates 822 are tightly attached to the inner wall of the crack and expand outward to adapt to the crack width and widen it to a suitable size. The telescopic rod 826 adjusts the working depth through elastic pre-tightening force to adapt to the changes in crack depth. The cleaning brush 823 is used to brush away the impurities attached to the crack wall in sync with the movement. The dust removal component 83 follows closely behind. Under the elastic pressure of the telescopic arm 833, the cleaning wheel 835 closely adheres to the crack walls of different depths and rotates and brushes with the chassis frame 1 to thoroughly remove stubborn particles and dust. At the same time, air is supplied by the air pump, and the air jet 836 blows the brushed dust directly out of the crack. Combined with the air blowing ports 838 on both sides, the escaped dust is completely blown away from the working area, ensuring that the inside and outside of the crack are clean and dry, creating the best bonding interface for grouting. After the crack cleaning is completed, the operator drives the transmission rod 12 through the operating rod 13 to control the opening and closing of the throttle valve 11, adjusts the output flow of the crack filling material, adapts to the crack filling needs of different widths, and sends the molten crack filling material out through the discharge pipe 4 of the molten material box 2. It is then guided downward by the guide plate 5 and the direction of the crack filling guide frame 6 is finely adjusted by the swing control rod 7 to guide the material into the cleaned crack, ensuring uniform filling and ultimately sealing the crack to prevent rainwater infiltration and the spread of the disease.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crack sealing device for highway pavement maintenance, comprising a chassis frame (1), characterized in that, A melting box (2) is fixedly installed on the top surface of the chassis frame (1). A smoke exhaust channel (3) is fixedly connected to one side of the melting box (2). A discharge pipe (4) is fixedly installed on one side of the melting box (2). A guide plate (5) is fixedly connected to the outer wall of the melting box (2), and the guide plate (5) is located below the discharge pipe (4). The bottom end of the guide plate (5) is equipped with a crack filling guide frame (6). A control rod (7) is fixedly connected to one side of the crack filling guide frame (6), and the control rod (7) is rotatably connected to the chassis frame (1). A crack cleaning component (8) is rotatably connected to the other side of the crack filling guide frame (6).

2. The crack sealing equipment for highway pavement maintenance according to claim 1, characterized in that, The crack cleaning component (8) consists of a bracket (81), a scraping component (82), and a dust removal component (83). One end of the bracket (81) is rotatably connected to the crack filling guide frame (6), and the other end is fixedly connected to the scraping component (82). The dust removal component (83) is located between the crack filling guide frame (6) and the scraping component (82) and is fixedly connected to the bracket (81).

3. The crack sealing equipment for highway pavement maintenance according to claim 2, characterized in that, The removal assembly (82) includes a crack cleaning cone (821), which is located below one end of the bracket (81). One end of the crack cleaning cone (821) is pointed, and the other end is rotatably connected to two sets of symmetrically and evenly distributed expansion plates (822) via a pin. Each set of expansion plates (822) has a cleaning brush (823) fixedly connected to its bottom surface.

4. The crack sealing device for highway pavement maintenance according to claim 2, characterized in that, The dust removal assembly (83) includes a fixed tube (831), which is fixedly connected to the bracket (81). An air storage block (832) is rotatably sleeved on the outer wall of the fixed tube (831). Multiple sets of telescopic arms (833) are fixedly installed on the outer wall of the air storage block (832). A push frame (834) is fixedly connected to one end of each set of telescopic arms (833) away from the fixed tube (831). A cleaning wheel (835) is rotatably connected inside each push frame (834) through a pin.

5. A crack sealing device for highway pavement maintenance according to claim 4, characterized in that, A jet nozzle (836) is installed between each pair of cleaning wheels (835), and each jet nozzle (836) is fixedly installed on the outer wall of the air storage block (832). The outer walls of the two ends of the fixed pipe (831) are fitted with cover plates (837) through bearings. Multiple sets of air blowing ports (838) are fixedly installed on the outer wall of the cover plate (837), and each set of air blowing ports (838) is connected to the inside of the air storage block (832).

6. The crack sealing device for highway pavement maintenance according to claim 1, characterized in that, A throttle valve (11) is fixedly sleeved on the outer wall of the discharge pipe (4). A transmission rod (12) is ball-hinged to the top of the throttle valve (11). An operating rod (13) is ball-hinged to the end of the transmission rod (12) away from the throttle valve (11).

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