Expressway pavement maintenance device

Abstract

The invention belongs to the technical field of pavement maintenance, and particularly relates to an expressway pavement maintenance device which comprises a vehicle body, an extension table and a discharging notch formed in the vehicle body, a reciprocating driving mechanism can drive an asphalt storage device to reciprocate, and in the reciprocating process of the asphalt storage device, the asphalt can be stored in the discharging notch. Asphalt in the asphalt storage device is controlled to be discharged through the uniform asphalt discharging mechanism, the asphalt in the asphalt storage device can be uniformly laid into an excavated foundation pit, the asphalt cannot be accumulated during laying, later leveling treatment is facilitated, and the asphalt in the asphalt storage device is uniformly discharged while the uniform asphalt discharging mechanism controls the asphalt in the asphalt storage device to be discharged. The asphalt emulsion spraying module can be driven to work in a linkage mode, the asphalt emulsion spraying module can spray asphalt emulsion to the edge of an excavated foundation pit, the edge of the excavated foundation pit can be effectively treated, the bonding strength of the edge of the foundation pit can be improved, and the connecting position of a new pavement and an old pavement is not prone to cracking in the later period.

Description

Technical Field

[0001] The invention belongs to the technical field of pavement maintenance, and in particular relates to a highway pavement maintenance device. Background Art

[0002] At present, most of the roads in my country are paved with asphalt as the raw material. However, due to the increase in the service life of the asphalt pavement built in the early stage, accompanied by asphalt aging, vehicle rolling and other reasons, rutting, potholes, cracks and other phenomena appear on the road surface, which require special personnel to carry out maintenance and protection. When the highway pavement is maintained and repaired, the potholes on the road surface are generally excavated by machinery first, and then the excavated foundation pit is filled by the pavement maintenance device and asphalt is laid on the excavated foundation pit, and finally the laid asphalt is flattened. However, the existing pavement maintenance device cannot effectively handle the edge of the excavated foundation pit when repairing and maintaining the pavement, so that there will be obvious joints between the new and old pavements in the repaired area, stress concentration at the joints, low connection strength, and easy to crack again in the later period.

[0003] In order to solve the above problems, this application proposes a highway pavement maintenance device. Summary of the invention

[0004] The present invention provides a highway pavement maintenance device, which can effectively solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a highway pavement maintenance device, comprising a vehicle body, an extension platform and a material discharge slot provided on the vehicle body; A reciprocating drive mechanism is fixedly arranged at the bottom of the vehicle body, and the reciprocating drive mechanism comprises a U-shaped mounting member, a drive motor, a drive screw rod, a drive screw sleeve, and a guide slide groove; The top of the reciprocating drive mechanism is fixedly connected to an asphalt storage device through a connecting rod, and the asphalt storage device includes a storage box, a heating plate, a first electric heating pipe, a collection groove, and a roller assembly; A sawtooth plate is fixedly connected to the vehicle body above the asphalt storage device through a bracket, and a stirring mechanism is meshedly connected to one side of the sawtooth plate, and the stirring mechanism includes a stirring shaft, a transmission gear, and a stirring blade; The asphalt storage device is equipped with an asphalt uniform feeding mechanism, which includes a rotating motor, a screw conveying paddle, a discharge cylinder, and an asphalt outlet; One end of the asphalt uniform feeding mechanism is connected to an asphalt emulsion spraying module, and the asphalt emulsion spraying module includes an asphalt emulsion storage box, a second electric heating pipe, an eccentric cam, a connecting column, a linkage rod, a piston assembly, a cylinder, a liquid inlet pipe, a main valve, a one-way valve A, a one-way valve B, a delivery hose, and a spray head; A heating and softening device is installed at the bottom of the vehicle body, and the heating and softening device includes a supporting rod, a mounting plate, a hydraulic push rod, and a heater; A road leveling mechanism is installed on the vehicle body, and the road leveling mechanism comprises a hydraulic telescopic rod, a mounting frame, a pressure roller, a connecting arm, a leveling scraper, and a scraper.

[0006] As a preferred highway pavement maintenance device of the present invention, a U-shaped mounting piece is fixedly installed on the bottom of the vehicle body, the drive motor is fixedly installed on one end of the U-shaped mounting piece, the drive screw is rotatably installed inside the U-shaped mounting piece through a bearing, and one end of the drive screw is connected to the end of the output shaft of the drive motor, the drive screw sleeve is connected to the outside of the drive screw sleeve through a thread, and the top of the drive screw sleeve is fixedly connected to the asphalt storage device through a connecting rod, and the guide groove is opened on the vehicle body.

[0007] As a preferred highway pavement maintenance device of the present invention, the storage box is fixedly connected to the driving screw sleeve by a connecting rod, the heating plate is fixedly installed inside the storage box, the first electric heating tube is fixedly installed at an equal distance at the bottom of the heating plate, and the heating plate is provided with an aggregate groove, and the roller assembly is fixedly installed at an equal distance at the bottom of the storage box.

[0008] As a preferred highway pavement maintenance device of the present invention, the stirring shaft is rotatably installed inside the storage box through a bearing, the transmission gear is fixedly installed on the top of the stirring shaft, and the transmission gear is meshingly connected with the serrated plate, and the stirring blades are equidistantly fixedly installed on the outside of the stirring shaft.

[0009] As a preferred highway pavement maintenance device of the present invention, the rotating motor is fixedly mounted on the outside of the storage box, the screw conveyor paddle is fixedly mounted on the end of the output shaft of the rotating motor, the discharge barrel is fixedly mounted on one side of the storage box, and an asphalt outlet is provided at the bottom of one end of the discharge barrel.

[0010] As a preferred highway pavement maintenance device of the present invention, the asphalt emulsion storage box is fixedly installed on one side of the storage box body, the second electric heating pipe is fixedly installed inside the asphalt emulsion storage box at an equal distance, the eccentric cam is fixedly connected to one end of the screw conveying paddle, and the outer side of the eccentric cam is connected to a linkage rod through a connecting column, one end of the linkage rod is connected to a piston assembly through a hinge shaft, the piston assembly is installed inside the cylinder, and the cylinder is fixedly installed on one side of the storage box body through a bracket.

[0011] As a preferred highway pavement maintenance device of the present invention, the liquid inlet pipe is connected between the asphalt emulsion storage box and the cylinder, and a main valve and a one-way valve A are installed on the liquid inlet pipe, a one-way valve B and a delivery hose are installed at the liquid outlet of the cylinder, a spray head is connected to the end of the delivery hose away from the liquid outlet of the cylinder, and the spray head is fixedly installed on the heating and softening device.

[0012] As a preferred embodiment of a highway pavement maintenance device of the present invention, the connecting column is eccentrically mounted on an eccentric cam, and the linkage rod is rotatably connected to the connecting column via a bearing.

[0013] As a preferred highway pavement maintenance device of the present invention, the support rod is fixedly installed on the bottom of the vehicle body, and the bottom end of the support rod is connected to the mounting plate through a hinge shaft, the top of the other side of the mounting plate is connected to the hydraulic push rod through a hinge shaft, and the top end of the hydraulic push rod is rotatably connected to the vehicle body through a hinge shaft, and the heater is fixedly installed on the mounting plate.

[0014] As a preferred highway pavement maintenance device of the present invention, the hydraulic telescopic rods are provided with two groups, and the two groups of the hydraulic telescopic rods are symmetrically fixedly installed on the vehicle body, the mounting frame is fixedly connected to the bottom end of the hydraulic telescopic rods, the pressure roller is rotatably mounted on the mounting frame through a bearing, and one side of the top of the mounting frame is fixedly connected to the flattening scraper through a connecting arm, the scraper is fixedly installed on one side of the connecting arm, and one end of the scraper is attached to the surface of the pressure roller.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting a reciprocating drive mechanism, the reciprocating drive mechanism can drive the asphalt storage device to reciprocate. During the reciprocating movement of the asphalt storage device, the asphalt in the asphalt storage device is discharged through the asphalt uniform feeding mechanism, and the asphalt in the asphalt storage device can be evenly laid in the excavated foundation pit. The asphalt will not accumulate during laying, which is convenient for later leveling. While the asphalt uniform feeding mechanism controls the discharge of asphalt in the asphalt storage device, it can also drive the asphalt emulsion spraying module to work. The asphalt emulsion spraying module can spray the asphalt emulsion to the edge of the excavated foundation pit, which can effectively treat the edge of the excavated foundation pit, improve the bonding strength at the edge of the foundation pit, and make the connection between the new and old pavements less likely to crack in the later period. By setting a heating and softening device, the heating and softening device can heat and soften the edge of the excavated foundation pit, so that the road leveling mechanism can better flatten the connection between the new and old roads, so that there will be no obvious joints at the connection between the new and old roads after repair, which can effectively improve the flatness of the connection. The spray head on the asphalt emulsion spraying module is fixedly installed on the heating and softening device. The heating and softening device can adjust the spraying angle of the spray head while adjusting the heating tilt angle, so that the spray head can be adjusted according to the terrain, and the asphalt emulsion can be better sprayed on the edge of the foundation pit, which can effectively improve the spraying effect; When the reciprocating drive mechanism drives the asphalt storage device to reciprocate, the serrated plate can be used to drive the stirring mechanism to rotate. During the rotation of the stirring mechanism, the asphalt and fine gravel stored in the asphalt storage device can be fully stirred and mixed, thereby improving the repair effect of asphalt and fine gravel on potholes on the highway surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a cross-sectional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at B in FIG. Figure 4 It is a schematic diagram of the connection structure of the asphalt emulsion spraying module and the heating and softening device in the present invention; Figure 5 It is a schematic diagram of the overall structure of the present invention; Figure 6 It is a schematic cross-sectional view of the asphalt storage device of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the asphalt uniform feeding mechanism and the asphalt emulsion spraying module in the present invention; Figure 8 For the present invention Figure 1 A in the figure is an enlarged structural diagram.

[0017] In the figure: 1. Car body; 2. Extension platform; 3. Feeding notch; 4. Reciprocating drive mechanism; 401. U-shaped mounting member; 402. Driving motor; 403. Driving screw rod; 404. Driving screw sleeve; 405. Guide slideway; 5. Asphalt storage device; 501. Storage box; 502. Heating plate; 503. First electric heating tube; 504. Aggregate groove; 505. Roller assembly; 6. Sawtooth plate; 7. stirring mechanism; 701. stirring shaft; 702. transmission gear; 703. stirring blade; 8. Asphalt emulsion spraying module; 801. Asphalt emulsion storage box; 802. Second electric heating tube; 803. Eccentric cam; 804. Connecting column; 805. Linkage rod; 806. Piston assembly; 807. Cylinder; 808. Liquid inlet pipe; 809. Main valve; 810. Check valve A; 811. Check valve B; 812. Delivery hose; 813. Spray head; 9. Heating and softening device; 901. Support rod; 902. Mounting plate; 903. Hydraulic push rod; 904. Heater; 10. Road leveling mechanism; 1001. Hydraulic telescopic rod; 1002. Mounting frame; 1003. Pressing roller; 1004. Connecting arm; 1005. Leveling scraper; 1006. Scraper; 11. Asphalt uniform feeding mechanism; 1101. Rotating motor; 1102. Screw conveyor; 1103. Discharging barrel; 1104. Asphalt outlet. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] Examples, such as Figure 1-Figure 8 As shown, a highway pavement maintenance device includes a vehicle body 1, an extension platform 2, and a material discharge slot 3 provided on the vehicle body 1, and the extension platform 2 can support a reciprocating asphalt storage device 5; A reciprocating drive mechanism 4 is fixedly provided at the bottom of the vehicle body 1, and the reciprocating drive mechanism 4 includes a U-shaped mounting member 401, a driving motor 402, a driving screw rod 403, a driving screw sleeve 404, and a guide slide groove 405; A U-shaped mounting piece 401 is fixedly installed at the bottom of the vehicle body 1, a driving motor 402 is fixedly installed at one end of the U-shaped mounting piece 401, a driving screw rod 403 is rotatably installed inside the U-shaped mounting piece 401 through a bearing, and one end of the driving screw rod 403 is connected to the end of the output shaft of the driving motor 402, a driving screw sleeve 404 is connected to the outside of the driving screw rod 403 through a thread, and the top of the driving screw sleeve 404 is fixedly connected to the asphalt storage device 5 through a connecting rod, and a guide slot 405 is provided on the vehicle body 1, and the driving motor 402 on the reciprocating drive mechanism 4 drives the driving screw rod 403 to rotate clockwise or counterclockwise, and the driving screw sleeve 404 can be driven to reciprocate when the driving screw sleeve 404 reciprocates. When the asphalt storage device 5 reciprocates, the asphalt in the asphalt storage device 5 is discharged through the asphalt uniform feeding mechanism 11, so that the asphalt in the asphalt storage device 5 can be evenly laid in the excavated foundation pit, and the asphalt will not be accumulated during laying, which is convenient for later leveling treatment; The top of the reciprocating drive mechanism 4 is fixedly connected with an asphalt storage device 5 through a connecting rod. The asphalt storage device 5 includes a storage box 501, a heating plate 502, a first electric heating pipe 503, a collection groove 504, and a roller assembly 505; The storage box 501 is fixedly connected to the driving screw sleeve 404 through a connecting rod, the heating plate 502 is fixedly installed inside the storage box 501, the first electric heating tube 503 is fixedly installed at the bottom of the heating plate 502 at an equal distance, and the heating plate 502 is provided with a collection groove 504, and the roller assembly 505 is fixedly installed at the bottom of the storage box 501 at an equal distance. The asphalt stored in the asphalt storage device 5 can be heated by the first electric heating tube 503 to prevent the asphalt from solidifying. The collection groove 504 cooperates with the asphalt uniform feeding mechanism 11 to better discharge the asphalt from the asphalt storage device 5. The asphalt storage device 5 can move smoothly on the vehicle body 1 through the roller assembly 505; A sawtooth plate 6 is fixedly connected to the vehicle body 1 above the asphalt storage device 5 through a bracket, and a stirring mechanism 7 is meshedly connected to one side of the sawtooth plate 6. The stirring mechanism 7 includes a stirring shaft 701, a transmission gear 702, and a stirring blade 703; The stirring shaft 701 is rotatably mounted inside the storage box 501 through a bearing, the transmission gear 702 is fixedly mounted on the top of the stirring shaft 701, and the transmission gear 702 is meshed and connected with the sawtooth plate 6, and the stirring blades 703 are equidistantly fixedly mounted on the outside of the stirring shaft 701. During the process of the reciprocating drive mechanism 4 driving the asphalt storage device 5 to reciprocate, the sawtooth plate 6 can be linked to drive the transmission gear 702 to rotate, and the transmission gear 702 can drive the stirring blades 703 to rotate through the stirring shaft 701 to fully stir and mix the asphalt and fine gravel stored in the asphalt storage device 5, which can improve the repair effect of the asphalt and fine gravel on the potholes on the road surface of the highway; The asphalt storage device 5 is equipped with an asphalt uniform feeding mechanism 11, which includes a rotating motor 1101, a screw conveying paddle 1102, a discharge barrel 1103, and an asphalt outlet 1104; The rotating motor 1101 is fixedly mounted on the outside of the storage box 501, the screw conveying paddle 1102 is fixedly mounted on the end of the output shaft of the rotating motor 1101, the discharging barrel 1103 is fixedly mounted on one side of the storage box 501, and an asphalt outlet 1104 is provided at the bottom of one end of the discharging barrel 1103. The rotating motor 1101 on the asphalt uniform feeding mechanism 11 can drive the screw conveying paddle 1102 to rotate. When the screw conveying paddle 1102 rotates, the asphalt and gravel in the asphalt storage device 5 can be uniformly discharged, and the asphalt in the asphalt storage device 5 can be evenly paved in the excavated foundation pit. The asphalt will not accumulate during paving, which is convenient for later leveling. One end of the asphalt uniform feeding mechanism 11 is connected to an asphalt emulsion spraying module 8, which includes an asphalt emulsion storage box 801, a second electric heating pipe 802, an eccentric cam 803, a connecting column 804, a linkage rod 805, a piston assembly 806, a cylinder 807, a liquid inlet pipe 808, a main valve 809, a one-way valve A 810, a one-way valve B 811, a delivery hose 812, and a spray head 813; The asphalt emulsion storage box 801 is fixedly installed on one side of the storage box body 501, the second electric heating pipe 802 is fixedly installed in the asphalt emulsion storage box 801 at an equal distance, the eccentric cam 803 is fixedly connected to one end of the screw conveying paddle 1102, and the outer side of the eccentric cam 803 is connected to the linkage rod 805 through the connecting column 804, and one end of the linkage rod 805 is connected to the piston assembly 806 through the hinge shaft, and the piston assembly 806 is installed in the cylinder 807, and the cylinder 807 is fixedly installed in the storage box 807 through the bracket. On one side of the box body 501, a liquid inlet pipe 808 is connected between the asphalt emulsion storage box 801 and the cylinder 807, and a main valve 809 and a one-way valve A810 are installed on the liquid inlet pipe 808. A one-way valve B811 and a delivery hose 812 are installed at the liquid outlet of the cylinder 807. The end of the delivery hose 812 away from the liquid outlet of the cylinder 807 is connected to a spray head 813, and the spray head 813 is fixedly installed on the heating and softening device 9. The connecting column 804 is eccentrically installed on the eccentric cam 803. The linkage rod 805 is rotatably connected to the connecting column 804 through a bearing. When the asphalt uniform feeding mechanism 11 controls the discharge of asphalt in the asphalt storage device 5, it can also drive the eccentric cam 803 to rotate. When the eccentric cam 803 rotates, the piston assembly 806 can be pushed and pulled back and forth through the linkage rod 805. When the linkage rod 805 pulls the piston assembly 806 outward, the asphalt emulsion in the asphalt emulsion storage box 801 can be sucked into the cylinder 807 through the liquid inlet pipe 808. The linkage rod 805 is pulled inward. When the piston assembly 806 is pushed, the asphalt emulsion in the cylinder 807 can be pushed out, and the asphalt emulsion is sprayed out from the spray head 813 after being pushed out, and the asphalt emulsion can be sprayed to the edge of the excavated foundation pit, which can effectively treat the edge of the excavated foundation pit and improve the bonding strength at the edge of the foundation pit, so that the connection between the new and old pavements is not easy to crack in the later stage. It should be noted that the size of the cylinder 807 on the asphalt emulsion spraying module 8 is set according to actual needs, which can just meet the spraying needs; A heating and softening device 9 is installed at the bottom of the vehicle body 1, and the heating and softening device 9 includes a supporting rod 901, a mounting plate 902, a hydraulic push rod 903, and a heater 904; The support rod 901 is fixedly mounted on the bottom of the vehicle body 1, and the bottom end of the support rod 901 is connected to the mounting plate 902 through a hinge shaft, the top of the other side of the mounting plate 902 is connected to the hydraulic push rod 903 through a hinge shaft, and the top end of the hydraulic push rod 903 is rotatably connected to the vehicle body 1 through a hinge shaft, and the heater 904 is fixedly mounted on the mounting plate 902. The heater 904 on the heating and softening device 9 can heat and soften the edge of the excavated foundation pit, so that the road leveling mechanism 10 can better flatten the connection between the new and old roads, so that the repair There will be no obvious joints at the connection between the new and old pavements, which can effectively improve the flatness of the connection. The spray head 813 on the asphalt emulsion spraying module 8 is fixedly mounted on the heating and softening device 9. The hydraulic push rod 903 on the heating and softening device 9 can be retracted to adjust the inclination angle of the mounting plate 902. The spraying angle of the spray head 813 can be adjusted while adjusting the heating inclination angle, so that the spray head 813 can be adjusted according to the terrain, and the asphalt emulsion can be better sprayed on the edge of the foundation pit, which can effectively improve the spraying effect. A road leveling mechanism 10 is installed on the vehicle body 1, and the road leveling mechanism 10 includes a hydraulic telescopic rod 1001, a mounting frame 1002, a pressure roller 1003, a connecting arm 1004, a leveling scraper 1005, and a scraper 1006; There are two groups of hydraulic telescopic rods 1001, and the two groups of hydraulic telescopic rods 1001 are symmetrically fixedly installed on the vehicle body 1, the mounting frame 1002 is fixedly connected to the bottom end of the hydraulic telescopic rod 1001, the pressure roller 1003 is rotatably installed on the mounting frame 1002 through a bearing, and one side of the top of the mounting frame 1002 is fixedly connected to the leveling scraper 1005 through a connecting arm 1004, the scraper 1006 is fixedly installed on one side of the connecting arm 1004, and one end of the scraper 1006 is attached to the surface of the pressure roller 1003. When the vehicle body 1 moves forward, the leveled asphalt and gravel can be leveled by the leveling scraper 1005 on the road leveling mechanism 10, the leveled asphalt can be compacted by the pressure roller 1003, and the asphalt adhering to the surface of the pressure roller 1003 can be scraped off by the scraper 1006.

[0020] In this embodiment, when in use, the maintenance device is first moved to a designated location, and then the drive motor 402 on the reciprocating drive mechanism 4 is turned on. When the drive motor 402 drives the drive screw 403 to rotate clockwise or counterclockwise, the drive screw sleeve 404 can be controlled to reciprocate. When the drive screw sleeve 404 reciprocates, the asphalt storage device 5 can be driven to reciprocate. During the reciprocating motion of the asphalt storage device 5, the rotating motor 1101 on the asphalt uniform feeding mechanism 11 is turned on, and the rotating motor 1101 drives the screw conveying paddle 1102 to rotate. The screw conveying paddle 110 When rotating, the asphalt and gravel in the asphalt storage device 5 can be controlled to be discharged evenly, and the asphalt and gravel in the asphalt storage device 5 can be evenly laid in the excavated foundation pit. In the process of the reciprocating drive mechanism 4 driving the asphalt storage device 5 to reciprocate, the serrated plate 6 can be linked to drive the transmission gear 702 to rotate, and the transmission gear 702 can drive the stirring blade 703 to rotate through the stirring shaft 701 to fully stir and mix the asphalt and fine gravel stored in the asphalt storage device 5, which can improve the repair effect of the asphalt and fine gravel on the potholes on the road surface of the highway; When the asphalt uniform feeding mechanism 11 controls the discharge of asphalt in the asphalt storage device 5, it can also drive the eccentric cam 803 to rotate. When the eccentric cam 803 rotates, the piston assembly 806 can be pushed and pulled back and forth through the linkage rod 805. When the linkage rod 805 pulls the piston assembly 806 outward, the asphalt emulsion in the asphalt emulsion storage box 801 can be sucked into the cylinder 807 through the liquid inlet pipe 808. When the linkage rod 805 pushes the piston assembly 806 inward, the asphalt emulsion in the cylinder 807 can be pushed out. After the asphalt emulsion is pushed out, it is sprayed from the spray head 813, and the asphalt emulsion can be sprayed to the edge of the excavated foundation pit, which can effectively treat the edge of the excavated foundation pit, improve the bonding strength at the edge of the foundation pit, and make the connection between the new and old pavements less likely to crack in the later stage; The heater 904 on the heating and softening device 9 can be used to heat and soften the edge of the excavated foundation pit, so that the road leveling mechanism 10 can better flatten the connection between the new and old road surfaces, so that there will be no obvious joints at the connection between the new and old road surfaces after repair, which can effectively improve the flatness of the connection. The hydraulic push rod 903 on the heating and softening device 9 is controlled to extend and retract according to the terrain, and the inclination angle of the mounting plate 902 can be adjusted. While adjusting the heating inclination angle, the spraying angle of the spray head 813 can also be adjusted, so that the spray head 813 can be adjusted according to the terrain, and the asphalt emulsion can be better sprayed on the edge of the foundation pit, which can effectively improve the spraying effect.

[0021] It should be noted that the one-way valve A810 allows the asphalt emulsion to be transported from the asphalt emulsion storage box 801 to the cylinder 807 and cannot flow in the opposite direction. The one-way valve B811 allows the asphalt emulsion to be transported from the cylinder 807 to the transport hose 812 and cannot flow in the opposite direction.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highway pavement maintenance device, comprising a vehicle body (1), an extension platform (2), and a material discharge slot (3) provided on the vehicle body (1); Features: A reciprocating drive mechanism (4) is fixedly provided at the bottom of the vehicle body (1), and the reciprocating drive mechanism (4) comprises a U-shaped mounting member (401), a drive motor (402), a drive screw rod (403), a drive screw sleeve (404), and a guide slide groove (405); The top of the reciprocating drive mechanism (4) is fixedly connected to an asphalt storage device (5) via a connecting rod, and the asphalt storage device (5) comprises a storage box (501), a heating plate (502), a first electric heating pipe (503), a material collection groove (504), and a roller assembly (505); A sawtooth plate (6) is fixedly connected to the vehicle body (1) above the asphalt storage device (5) via a bracket, and a stirring mechanism (7) is meshingly connected to one side of the sawtooth plate (6). The stirring mechanism (7) comprises a stirring shaft (701), a transmission gear (702), and a stirring blade (703); The asphalt storage device (5) is equipped with an asphalt uniform feeding mechanism (11), and the asphalt uniform feeding mechanism (11) comprises a rotating motor (1101), a screw conveying paddle (1102), a discharge barrel (1103), and an asphalt outlet (1104); One end of the asphalt uniform feeding mechanism (11) is connected to an asphalt emulsion spraying module (8), and the asphalt emulsion spraying module (8) comprises an asphalt emulsion storage box (801), a second electric heating pipe (802), an eccentric cam (803), a connecting column (804), a linkage rod (805), a piston assembly (806), a cylinder (807), a liquid inlet pipe (808), a main valve (809), a one-way valve A (810), a one-way valve B (811), a delivery hose (812), and a spray head (813); A heating and softening device (9) is installed at the bottom of the vehicle body (1), and the heating and softening device (9) comprises a supporting rod (901), a mounting plate (902), a hydraulic push rod (903), and a heater (904); A road surface leveling mechanism (10) is installed on the vehicle body (1), and the road surface leveling mechanism (10) comprises a hydraulic telescopic rod (1001), a mounting frame (1002), a pressure roller (1003), a connecting arm (1004), a leveling scraper (1005), and a scraper (1006).

2. A highway pavement maintenance device according to claim 1, characterized in that: A U-shaped mounting member (401) is fixedly mounted on the bottom of the vehicle body (1), the driving motor (402) is fixedly mounted on one end of the U-shaped mounting member (401), the driving screw rod (403) is rotatably mounted inside the U-shaped mounting member (401) via a bearing, and one end of the driving screw rod (403) is connected to the end of the output shaft of the driving motor (402), the driving screw sleeve (404) is connected to the outside of the driving screw rod (403) via a thread, and the top of the driving screw sleeve (404) is fixedly connected to the asphalt storage device (5) via a connecting rod, and the guide slide groove (405) is opened on the vehicle body (1).

3. A highway pavement maintenance device according to claim 2, characterized in that: The storage box (501) is fixedly connected to the driving screw sleeve (404) via a connecting rod, the heating plate (502) is fixedly installed inside the storage box (501), the first electric heating tube (503) is fixedly installed at an equal distance at the bottom of the heating plate (502), and a material collection groove (504) is provided on the heating plate (502), and the roller assembly (505) is fixedly installed at an equal distance at the bottom of the storage box (501).

4. A highway pavement maintenance device according to claim 3, characterized in that: The stirring shaft (701) is rotatably mounted inside the storage box (501) via a bearing, the transmission gear (702) is fixedly mounted on the top of the stirring shaft (701), and the transmission gear (702) is meshingly connected to the serrated plate (6), and the stirring blades (703) are fixedly mounted at equal intervals on the outside of the stirring shaft (701).

5. A highway pavement maintenance device according to claim 4, characterized in that: The rotating motor (1101) is fixedly mounted on the outside of the storage box (501), the screw conveying paddle (1102) is fixedly mounted on the end of the output shaft of the rotating motor (1101), the discharge barrel (1103) is fixedly mounted on one side of the storage box (501), and an asphalt outlet (1104) is provided at the bottom of one end of the discharge barrel (1103).

6. A highway pavement maintenance device according to claim 5, characterized in that: The asphalt emulsion storage box (801) is fixedly installed on one side of the storage box body (501), the second electric heating pipe (802) is fixedly installed at an equal distance inside the asphalt emulsion storage box (801), the eccentric cam (803) is fixedly connected to one end of the screw conveying paddle (1102), and the outer side of the eccentric cam (803) is connected to the linkage rod (805) via a connecting column (804), one end of the linkage rod (805) is connected to a piston assembly (806) via a hinge shaft, the piston assembly (806) is installed inside a cylinder barrel (807), and the cylinder barrel (807) is fixedly installed on one side of the storage box body (501) via a bracket.

7. A highway pavement maintenance device according to claim 6, characterized in that: The liquid inlet pipe (808) is connected between the asphalt emulsion storage box (801) and the cylinder (807), and a main valve (809) and a one-way valve A (810) are installed on the liquid inlet pipe (808). A one-way valve B (811) and a delivery hose (812) are installed at the liquid outlet of the cylinder (807). The end of the delivery hose (812) away from the liquid outlet of the cylinder (807) is connected to a spray head (813), and the spray head (813) is fixedly installed on the heating and softening device (9).

8. A highway pavement maintenance device according to claim 7, characterized in that: The connecting column (804) is eccentrically mounted on the eccentric cam (803), and the linkage rod (805) is rotatably connected to the connecting column (804) via a bearing.

9. The highway pavement maintenance device according to claim 1, characterized in that: The support rod (901) is fixedly mounted on the bottom of the vehicle body (1), and the bottom end of the support rod (901) is connected to the mounting plate (902) via a hinge shaft, the top of the other side of the mounting plate (902) is connected to the hydraulic push rod (903) via a hinge shaft, and the top end of the hydraulic push rod (903) is rotatably connected to the vehicle body (1) via a hinge shaft, and the heater (904) is fixedly mounted on the mounting plate (902).

10. The highway pavement maintenance device according to claim 1, characterized in that: The hydraulic telescopic rods (1001) are provided with two groups, and the two groups of the hydraulic telescopic rods (1001) are symmetrically fixedly mounted on the vehicle body (1); the mounting frame (1002) is fixedly connected to the bottom end of the hydraulic telescopic rods (1001); the pressure roller (1003) is rotatably mounted on the mounting frame (1002) via a bearing, and one side of the top of the mounting frame (1002) is fixedly connected to a flattening scraper (1005) via a connecting arm (1004); the scraper (1006) is fixedly mounted on one side of the connecting arm (1004), and one end of the scraper (1006) is attached to the surface of the pressure roller (1003).

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