Highway crack treatment device for highway engineering

Abstract

The invention relates to the technical field of highway engineering, and discloses a highway crack treatment device for highway engineering, comprising: a cart, the upper surface of which is fixedly provided with a support; the swing assembly is arranged on the support and comprises a connecting block, the outer wall of the connecting block is fixed to the outer wall of the support, a first hydraulic rod is fixed to the outer wall of the connecting block, a rack is fixed to the driving end of the first hydraulic rod, a rotating rod is rotationally arranged at the top end of the support, and a half gear is fixed to one end of the rotating rod. A stirring tank is fixed at the other end of the rotating rod, and the half gear is meshed with the rack; the stirring assembly is arranged on the stirring tank. Through cooperation of the inner structures of the swing assembly and the stirring assembly and the precise discharging assembly, the effects that self-adaptive precise pouring is conducted on cracks with different widths and directions, and asphalt discharging starting and stopping can be controlled according to needs are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of highway engineering, in particular to a highway crack processing device used in highway engineering. Background Art

[0002] Highway maintenance is a core component of transportation infrastructure management. Over the course of pavement use, cracks inevitably develop due to the combined effects of ambient temperature fluctuations and vehicle loads. Cracks are a common early-stage defect. If not promptly addressed, rainwater can seep through the cracks, eroding the roadbed and causing structural damage. Asphalt crack filling is currently the most widely used preventive maintenance method. Small cart-mounted crack treatment devices are often used. These devices integrate asphalt heating, mixing, and conveying functions.

[0003] During the asphalt pouring process, the discharge port of existing equipment is typically a fixed pipe with a simple structure. Operators must align the cracks by sight and feel, a highly subjective method that makes alignment difficult to ensure. When the crack width or direction changes, the equipment cannot adapt in time, which can easily lead to uneven pouring, asphalt overflow, or insufficient filling, directly resulting in material waste and reduced repair quality.

[0004] The disconnect between the pouring and compaction processes is another major drawback. After asphalt filling, it is often necessary to manually use independent tools for compaction. This time difference will cause the asphalt temperature to drop and its fluidity to deteriorate. If compaction is performed at this time, the effect will be greatly reduced, voids will easily form inside, and the strength will be insufficient. Moreover, for some small cracks or cracks in special locations scattered around the main cracks, the existing devices appear to have a single function and are difficult to handle flexibly, which reduces the integrity of a single operation.

[0005] Traditional heating systems generate large amounts of hot air to insulate the asphalt in the mixing tank. However, this heat is typically used only for internal insulation or directly discharged to prevent overheating, failing to fully utilize the energy. Meanwhile, the cracks in the road being treated are cold, damp, and even dusty. Directly injecting hot asphalt into these untreated cracks can lead to poor adhesion between the asphalt and the road surface due to the significant temperature difference. The presence of moisture further weakens the bond, creating a potential for secondary damage in the future. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a highway crack treatment device for highway engineering, which solves the problems of low positioning accuracy during pouring, difficulty in adapting to crack changes, and cracks not being pre-treated affecting the bonding effect.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a highway crack processing device for highway engineering, comprising: a cart, a bracket fixed on the upper surface of the cart; a swing assembly, which is arranged on the bracket, the swing assembly including a connecting block, the outer wall of the connecting block is fixed to the outer wall of the bracket, the outer wall of the connecting block is fixed with a hydraulic rod 1, the driving end of the hydraulic rod 1 is fixed with a rack, the top end of the bracket is rotatable with a rotating rod, one end of the rotating rod is fixed with a half gear, the other end of the rotating rod is fixed with a mixing tank, the half gear and the rack are meshed; a stirring assembly, which is arranged on the mixing tank and is used to stir the asphalt inside the mixing tank; a precise discharging assembly, which is arranged on the cart and is used to control the discharging; an auxiliary assembly, which is arranged on the cart and is used to process small gaps; a compacting assembly, which is arranged on the lower surface of the cart and is used to compact the filled asphalt; a heating and exhaust assembly, which is arranged on the cart and is used to heat the mixing tank and discharge hot air to clean the gaps.

[0008] Preferably, the stirring assembly includes a top cover, the outer wall of the top cover is arranged at the top end of the stirring tank, a motor is fixed to the top end of the top cover, a stirring rod is fixed to the driving end of the motor, a plurality of stirring blades are fixed to the outer wall of the stirring rod, the outer walls of the stirring blades are arranged inside the stirring tank, a hopper is passed through the top end of the top cover, a discharge pipe is passed through the bottom end of the stirring tank, and a solenoid valve is provided inside the discharge pipe.

[0009] Preferably, the precise discharging assembly includes a collecting hopper, the lower surface of which is fixed on the trolley, a discharging hose passes through the bottom end of the collecting hopper, and a nozzle 1 is fixed to the end of the discharging hose.

[0010] Preferably, a connecting plate 1 is fixed inside the cart, a cylinder is fixed on the lower surface of the connecting plate 1, a connecting piece is fixed on the driving end of the cylinder, and an outer wall of the connecting piece is fixed to the outer wall of the discharge hose.

[0011] Preferably, an adjusting screw is rotated inside the connecting member, and the outer wall of the adjusting screw is threadedly connected to a left-right symmetrical guide wheel, a guide rod is fixed inside the connecting member, and the inner wall of the guide wheel slides on the outer wall of the guide rod, and a connecting rod is fixed at the end of the adjusting screw, and a handle is fixed at the end of the connecting rod.

[0012] Preferably, the auxiliary component includes a delivery pump, the lower surface of which is fixed to the upper surface of the cart, an extraction pipe is fixed to the input end of the delivery pump, a telescopic hose is fixed to the end of the extraction pipe, the end of the telescopic hose passes through the bottom end of the mixing tank, a delivery pipe is fixed to the driving end of the delivery pump, a nozzle 2 is fixed to the end of the delivery pipe, a support seat is provided below the nozzle 2, and the bottom end of the support seat is fixed to the outer wall of the cart.

[0013] Preferably, the compacting assembly includes a second connecting plate, the outer wall of which is fixed to the interior of the trolley, a second hydraulic rod is fixed to the lower surface of the second connecting plate, and a compacting plate is fixed to the driving end of the second hydraulic rod.

[0014] Preferably, the heating exhaust assembly includes a jacket, the inner wall of the jacket is fixed to the outer wall of the stirring tank, an air valve is provided on the outer side of the jacket, and a plurality of heating tubes are fixed inside the jacket.

[0015] Preferably, an air pump is fixed to the upper surface of the cart, an exhaust hose is fixed to the input end of the air pump, the end of the exhaust hose passes through the interior of the jacket, an exhaust pipe is fixed to the output end of the air pump, a diversion pipe is fixed to the end of the exhaust pipe, a plurality of nozzles are passed through the bottom end of the diversion pipe, and the outer wall of the nozzle is arranged at the front end of the lower surface of the cart.

[0016] Preferably, a hydraulic rod three is fixed to the lower surface of the cart, and the hydraulic rod three and the lower surface of the support plate are fixed with left-right symmetrical supporting feet.

[0017] The present invention provides a road crack treatment device for highway engineering, which has the following beneficial effects: 1. The present invention achieves adaptive and precise grouting of cracks of different widths and directions through the coordination between the swing component, the internal structure of the stirring component and the precise discharging component, and can control the start and stop of asphalt discharging as needed, solving the problems of difficult control of asphalt flow, inconvenient alignment of the discharging position, and inability to adapt to changes in crack width during traditional manual grouting, resulting in unstable grouting quality, serious material waste and low efficiency.

[0018] 2. The present invention achieves the goal of quickly compacting the filling area after asphalt pouring through the cooperation between the auxiliary components and the compacting components to ensure full and tight filling. At the same time, the auxiliary components can be used to perform small-scale repairs on special locations or untreated cracks, solving the problem of asphalt not being compacted in time after pouring, resulting in incomplete filling, insufficient strength, poor versatility, and inability to cope with complex working conditions.

[0019] 3. The present invention achieves the effects of preheating, drying and blowing dust off the cracks through the coordination between the internal structures of the heating exhaust assembly, realizing the multi-stage energy recycling and solving the problems of low energy utilization and serious heat waste in traditional heating devices. At the same time, if the cracks are not preheated and dried, the moisture and low temperature inside will seriously affect the fluidity of the asphalt and the bonding effect with the road surface, thereby reducing the quality of the repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the bracket part of the present invention; Figure 3 It is a schematic diagram of the structure of the cart part of the present invention; Figure 4 This is a schematic diagram of the internal structure of the stirring tank of the present invention; Figure 5 It is a schematic structural diagram of the collecting bucket part of the present invention; Figure 6 It is a schematic diagram of the structure of the guide wheel part of the present invention; Figure 7 It is a schematic diagram of the structure of the delivery pump of the present invention; Figure 8 It is a schematic diagram of the structure of the compacting plate part of the present invention; Figure 9 It is a schematic diagram of the structure of the nozzle part of the present invention; Figure 10 It is a structural schematic diagram of the support leg portion of the present invention.

[0021] Among them, 1. Cart; 2. Bracket; 3. Swing assembly; 301. Connecting block; 302. Hydraulic rod 1; 303. Rack; 304. Rotating rod; 305. Half gear; 4. Mixing tank; 5. Mixing assembly; 501. Top cover; 502. Hopper; 503. Motor; 504. Mixing rod; 505. Mixing blade; 506. Discharge pipe; 507. Solenoid valve; 6. Precision discharging assembly; 601. Collection hopper; 602. Discharge hose; 603. Nozzle 1; 604. Connecting plate 1; 605. Cylinder; 606. Connector; 607. Adjusting screw; 608. Guide rod; 609. Guide wheel; 610. Connecting rod; 611. Handle; 7. Auxiliary components; 701. Delivery pump; 702. Extraction pipe; 703. Telescopic hose; 704. Delivery pipe; 705. Nozzle 2; 706. Support seat; 8. Compacting component; 801. Connecting plate 2; 802. Hydraulic rod 2; 803. Compacting plate; 9. Heating and exhaust component; 901. Jacket; 902. Heating pipe; 903. Air valve; 904. Air pump; 905. Extraction hose; 906. Delivery pipe; 907. Diverter pipe; 908. Nozzle; 10. Hydraulic rod 3; 11. Support plate; 12. Support foot. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please see the attached Figure 1 -Attached Figure 6 , an embodiment of the present invention provides a road crack treatment device for highway engineering, comprising: a cart 1, a bracket 2 being fixed to the upper surface of the cart 1; The swing assembly 3 is arranged on the bracket 2. The swing assembly 3 includes a connecting block 301. The outer wall of the connecting block 301 is fixed to the outer wall of the bracket 2. A hydraulic rod 302 is fixed to the outer wall of the connecting block 301. A rack 303 is fixed to the driving end of the hydraulic rod 302. A rotating rod 304 is rotated at the top of the bracket 2. A half gear 305 is fixed to one end of the rotating rod 304. The other end of the rotating rod 304 is fixed to the mixing tank 4. The half gear 305 and the rack 303 are meshed. A stirring assembly 5 is provided on the stirring tank 4 and is used to stir the asphalt inside the stirring tank 4; A precise discharging assembly 6, which is provided on the cart 1 and is used to control the discharging; An auxiliary component 7, which is provided on the cart 1 and is used to process tiny gaps; A compacting assembly 8, which is provided on the lower surface of the trolley 1 and is used to compact the asphalt after filling; The heating exhaust component 9 is arranged on the cart 1 and is used to heat the mixing tank 4. At the same time, the hot air can be discharged to clean the gap. The stirring component 5 includes a top cover 501. The outer wall of the top cover 501 is arranged on the top of the mixing tank 4. The top of the top cover 501 is fixed with a motor 503. The driving end of the motor 503 is fixed with a stirring rod 504. The outer wall of the stirring rod 504 is fixed with a plurality of stirring blades 505. The outer wall of the stirring blade 505 is arranged inside the mixing tank 4. The top of the top cover 501 is penetrated by a hopper 502. The bottom end of the mixing tank 4 is penetrated by a discharge pipe 506. The discharge pipe 506 is provided with a solenoid valve 507. The precise discharging component 6 includes a collecting hopper 601. The lower surface of the collecting hopper 601 is fixed on the cart 1. A discharge hose 602 passes through the bottom end of the collecting bucket 601, and a nozzle 603 is fixed to the end of the discharge hose 602. A connecting plate 604 is fixed inside the cart 1, and a cylinder 605 is fixed to the lower surface of the connecting plate 604. A connecting piece 606 is fixed to the driving end of the cylinder 605, and the outer wall of the connecting piece 606 is fixed to the outer wall of the discharge hose 602. An adjusting screw 607 is rotated inside the connecting piece 606, and the outer wall of the adjusting screw 607 is threadedly connected to a left-right symmetrical guide wheel 609. A guide rod 608 is fixed inside the connecting piece 606, and the inner wall of the guide wheel 609 slides on the outer wall of the guide rod 608. A connecting rod 610 is fixed to the end of the adjusting screw 607, and a handle 611 is fixed to the end of the connecting rod 610.

[0024] Specifically, the operator can add materials to the mixing tank 4 through the hopper 502, start the motor 503 to drive the stirring rod 504 and the stirring blade 505 to efficiently prepare homogeneous asphalt. When the pouring operation is required, the hydraulic rod 302 of the swing assembly 3 drives the rack 303 to engage with the half gear 305, so that the rotating rod 304 can drive the entire mixing tank 4 to produce a controllable dumping action, and then through the precise opening and closing of the solenoid valve 507, the asphalt is instantly supplied on demand from the discharge pipe 506 to the collection bucket 601. The connecting piece 606 is driven to descend by the cylinder 605, and the operator is allowed to operate the adjustment screw 607 by turning the handle 611, thereby changing the spacing between a pair of guide wheels 609 on the guide rod 608, so that it can actively adapt to and lock cracks of different widths. The device therefore has the ability to automatically center along the crack trajectory, ensuring that the nozzle 1 603 can always accurately inject the asphalt delivered by the discharge hose 602 into the center of the crack.

[0025] Please see the attached Figure 7 -Attached Figure 8 The auxiliary component 7 includes a conveying pump 701, the lower surface of the conveying pump 701 is fixed to the upper surface of the trolley 1, the input end of the conveying pump 701 is fixed with an extraction pipe 702, the end of the extraction pipe 702 is fixed with a telescopic hose 703, the end of the telescopic hose 703 passes through the bottom end of the mixing tank 4, the driving end of the conveying pump 701 is fixed with a conveying pipe 704, the end of the conveying pipe 704 is fixed with a nozzle 2 705, a support seat 706 is provided below the nozzle 2 705, and the bottom end of the support seat 706 is fixed to the outer wall of the trolley 1, the compacting component 8 includes a connecting plate 2 801, the outer wall of the connecting plate 2 801 is fixed to the inside of the trolley 1, the lower surface of the connecting plate 2 801 is fixed with a hydraulic rod 2 802, and the driving end of the hydraulic rod 2 802 is fixed with a compacting plate 803.

[0026] Specifically, the powerful and uniform downward pressure applied by the compacting plate 803 driven by the hydraulic rod 2 802 can quickly complete compaction within the optimal window period of asphalt thermoplasticity, completely eliminate internal voids, form a high-density repair body, and ensure the flatness and bearing capacity of the road surface. At the same time, the auxiliary component 7 provides unparalleled flexibility in dealing with complex working conditions. The delivery pump 701 can directly extract hot asphalt from the bottom of the mixing tank 4 through the telescopic hose 703, and then use the handheld nozzle 2 705 to perform precise point-to-point repairs on fine cracks or corners that are difficult for the main equipment to reach. When not in use, it can be placed on the support seat 706.

[0027] Please see the attached Figure 9 -Attached Figure 10The heating and exhaust assembly 9 includes a jacket 901, the inner wall of the jacket 901 is fixed to the outer wall of the mixing tank 4, an air valve 903 is provided on the outside of the jacket 901, and a plurality of heating tubes 902 are fixed inside the jacket 901. An air pump 904 is fixed to the upper surface of the trolley 1, and an exhaust hose 905 is fixed to the input end of the air pump 904. The end of the exhaust hose 905 passes through the interior of the jacket 901, and an exhaust pipe 906 is fixed to the output end of the air pump 904. A diverter pipe 907 is fixed to the end of the exhaust pipe 906, and a plurality of nozzles 908 are passed through the bottom end of the diverter pipe 907. The outer wall of the nozzle 908 is provided at the front end of the lower surface of the trolley 1, and a hydraulic rod three 10 is fixed to the lower surface of the trolley 1, and a support plate 11 is fixed to the driving end of the hydraulic rod three 10. The lower surface of the support plate 11 is fixed with left and right symmetrical support legs 12.

[0028] Specifically, the air pump 904 actively extracts the hot air generated by the heating inside the jacket 901 through the exhaust hose 905, and redirects this part of the energy that would have been dissipated through the exhaust pipe 906 and the diversion pipe 907, and sprays it out from the multiple nozzles 908 at the front end of the cart 1. This design not only realizes the recycling of energy, but more importantly, the ejected hot air flow can effectively pre-treat the cracks in the road surface, play the role of blowing away debris, removing moisture and increasing the base temperature, creating ideal conditions for the subsequent asphalt pouring and bonding. During the entire operation, in order to ensure the absolute stability of the equipment body, the hydraulic rod 3 10 can be activated to drive the support plate 11 below it, and the left and right symmetrical legs 12 can be extended and firmly pressed against the ground. This function provides a stable operating platform for the equipment, effectively preventing shaking caused by changes in the center of gravity or uneven ground.

[0029] Working principle: First, the heating exhaust component 9 starts to operate, and the multiple heating tubes 902 inside the jacket 901 heat the mixing tank 4. The air pump 904 extracts the hot air in the jacket 901 through the exhaust hose 905, and sprays it out from the multiple nozzles 908 at the front end of the cart 1 through the exhaust pipe 906 and the diversion pipe 907 to preheat and clean the cracks in front. The excess hot air can be discharged through the air valve 903. At this time, the operator adds asphalt into the mixing tank 4 through the hopper 502 on the top cover 501, and starts the motor 503 to drive the stirring rod 504 and multiple stirring blades 505 to rotate for sufficient stirring. When it is necessary to discharge the material, the operator Push the cart 1 so that the nozzle 603 below the precise discharging assembly 6 is aligned with the crack, and then the swing assembly 3 is started, and the hydraulic rod 302 fixed on the bracket 2 drives the rack 303 to move, and the rack 303 engages the half gear 305 to drive the rotating rod 304 and the mixing tank 4 to tilt, and then open the solenoid valve 507 in the discharge pipe 506, and the mixed asphalt will flow into the collecting bucket 601 fixed on the cart 1, and flow to the nozzle 603 through the discharge hose 602. At this time, the cylinder 605 fixed under the connecting plate 604 is controlled to drive the connecting piece 606 to move downward with the guide wheel 609, and the rotating The movable handle 611 rotates with the connecting rod 610 and the adjusting screw 607, so that the left and right symmetrical guide wheels 609 slide on the outer wall of the guide rod 608 to adjust the distance between the two guide wheels 609 to align with cracks of different widths. The material is accurately discharged with the help of the guide wheels 609 by pushing the cart 1. The asphalt flow rate is accurately controlled by controlling the solenoid valve 507. When dealing with some small cracks, the second nozzle 705 can be held and the delivery pump 701 can be started to extract the asphalt inside the mixing tank 4 through the extraction pipe 702 and the telescopic hose 703, and finally delivered to the inner of the second nozzle 705 through the delivery pipe 704. The asphalt is discharged from the bottom of the mixing tank 4 and small cracks are treated. After the pouring is completed, the compacting component 8 is started, and the hydraulic rod 2 802 fixed on the connecting plate 2 801 drives the compacting plate 803 to descend to compact the filled asphalt. For repairs in special positions, the auxiliary component 7 is started, and the delivery pump 701 extracts asphalt from the bottom of the mixing tank 4 through the telescopic hose 703 and the extraction pipe 702, and sprays it from the handheld nozzle 2 705 through the delivery pipe 704 for point-to-point treatment. When not in use, the nozzle 2 705 can be placed on the support seat 706, and the support plate 11 can be driven to drive the support leg 12 to descend by starting the hydraulic rod 3 10 to stabilize the entire cart 1.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A road crack treatment device for highway engineering, characterized in that: include: A trolley (1), wherein a bracket (2) is fixed to the upper surface of the trolley (1); A swing assembly (3) is provided on the bracket (2), the swing assembly (3) comprising a connecting block (301), the outer wall of the connecting block (301) being fixed to the outer wall of the bracket (2), a hydraulic rod (302) being fixed to the outer wall of the connecting block (301), a rack (303) being fixed to the driving end of the hydraulic rod (302), a rotating rod (304) being rotatable at the top end of the bracket (2), a half gear (305) being fixed to one end of the rotating rod (304), a stirring tank (4) being fixed to the other end of the rotating rod (304), and the half gear (305) and the rack (303) being meshed with each other; A stirring assembly (5), which is arranged on the stirring tank (4) and is used to stir the asphalt inside the stirring tank (4); A precise discharging assembly (6), which is arranged on the trolley (1) and is used to control the discharging; An auxiliary component (7) is provided on the cart (1) and is used for processing tiny gaps; A compacting assembly (8), which is arranged on the lower surface of the cart (1) and is used to compact the asphalt after filling; A heating exhaust assembly (9) is provided on the trolley (1) and is used to heat the mixing tank (4) and simultaneously discharge hot air to clean the gaps.

2. A road crack treatment device for road engineering according to claim 1, characterized in that: The stirring assembly (5) comprises a top cover (501), the outer wall of the top cover (501) is arranged at the top end of the stirring tank (4), a motor (503) is fixed to the top end of the top cover (501), a stirring rod (504) is fixed to the driving end of the motor (503), a plurality of stirring blades (505) are fixed to the outer wall of the stirring rod (504), the outer walls of the stirring blades (505) are arranged inside the stirring tank (4), a hopper (502) is passed through the top end of the top cover (501), a discharge pipe (506) is passed through the bottom end of the stirring tank (4), and a solenoid valve (507) is provided inside the discharge pipe (506).

3. A road crack treatment device for road engineering according to claim 1, characterized in that: The precise discharge assembly (6) includes a collecting hopper (601), the lower surface of which is fixed on the trolley (1), a discharge hose (602) passing through the bottom end of the collecting hopper (601), and a nozzle 1 (603) fixed at the end of the discharge hose (602).

4. A road crack treatment device for road engineering according to claim 1, characterized in that: A connecting plate 1 (604) is fixed inside the cart (1), a cylinder (605) is fixed on the lower surface of the connecting plate 1 (604), a connecting piece (606) is fixed on the driving end of the cylinder (605), and the outer wall of the connecting piece (606) is fixed to the outer wall of the discharge hose (602).

5. A road crack treatment device for road engineering according to claim 4, characterized in that: An adjusting screw rod (607) is rotated inside the connecting member (606), and a left-right symmetrical guide wheel (609) is threadedly connected to the outer wall of the adjusting screw rod (607). A guide rod (608) is fixed inside the connecting member (606), and the inner wall of the guide wheel (609) slides on the outer wall of the guide rod (608). A connecting rod (610) is fixed to the end of the adjusting screw rod (607), and a handle (611) is fixed to the end of the connecting rod (610).

6. A road crack treatment device for road engineering according to claim 1, characterized in that: The auxiliary component (7) includes a delivery pump (701), the lower surface of the delivery pump (701) is fixed to the upper surface of the cart (1), the input end of the delivery pump (701) is fixed with an extraction pipe (702), the end of the extraction pipe (702) is fixed with a telescopic hose (703), the end of the telescopic hose (703) passes through the bottom end of the mixing tank (4), the driving end of the delivery pump (701) is fixed with a delivery pipe (704), the end of the delivery pipe (704) is fixed with a second nozzle (705), a support seat (706) is provided below the second nozzle (705), and the bottom end of the support seat (706) is fixed to the outer wall of the cart (1).

7. A road crack treatment device for road engineering according to claim 1, characterized in that: The compacting assembly (8) includes a second connecting plate (801), the outer wall of which is fixed inside the cart (1), a second hydraulic rod (802) is fixed on the lower surface of the second connecting plate (801), and a compacting plate (803) is fixed on the driving end of the second hydraulic rod (802).

8. The road crack treatment device for highway engineering according to claim 1, characterized in that: The heating exhaust assembly (9) comprises a jacket (901), the inner wall of the jacket (901) is fixed to the outer wall of the stirring tank (4), an air valve (903) is provided on the outer side of the jacket (901), and a plurality of heating tubes (902) are fixed inside the jacket (901).

9. The road crack treatment device for highway engineering according to claim 1, characterized in that: An air pump (904) is fixed to the upper surface of the cart (1), an air extraction hose (905) is fixed to the input end of the air pump (904), the end of the air extraction hose (905) passes through the interior of the jacket (901), an exhaust pipe (906) is fixed to the output end of the air pump (904), a diversion pipe (907) is fixed to the end of the exhaust pipe (906), a plurality of nozzles (908) are passed through the bottom end of the diversion pipe (907), and the outer wall of the nozzle (908) is arranged at the front end of the lower surface of the cart (1).

10. The road crack treatment device for road engineering according to claim 1, characterized in that: A hydraulic rod three (10) is fixed to the lower surface of the cart (1), a support plate (11) is fixed to the driving end of the hydraulic rod three (10), and left-right symmetrical support legs (12) are fixed to the lower surface of the support plate (11).

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