Road paving device

Abstract

The present invention relates to the field of road paving, and specifically to a road paving device, comprising a vehicle body, a feeding assembly is provided on the rear vehicle plate of the vehicle body, and a plurality of slotting assemblies are provided at the lower end position of the upper plate body; the slotting assembly is used to open grooves on the road surface, and each slotting assembly comprises a motor, the motor is fixedly connected in a groove opened on the surface of the plate body, a turntable is fixedly connected at the output end of the motor, an anti-dropping pin is provided at an eccentric position on the outer surface of the turntable, a lever is provided on the anti-dropping pin, the middle position of the lever is rotatably connected to the lower surface of the plate body, a sliding hole at one end of the lever is slidably connected to the anti-dropping pin, and the other end of the lever extends to the lower end edge position of the plate body; in the present invention, the slotting assembly is designed to open a groove through a slotting plate, and then the lime sliding off the plate body falls into the groove, and the lime laid for the second time and the lime laid for the first time are both laid below the soil layer, so as to avoid rolling up the lime laid for the first time, resulting in ineffective use of the lime.

Description

Technical Field

[0001] The invention relates to the field of road paving, in particular to a road paving device. Background Art

[0002] When building roads, a variety of paving materials are used, such as gravel, stone, soil and lime. Different materials have different functions. Among them, lime, as a paving material for roads, plays an important role. Lime can improve the stability of the roadbed. After lime is mixed with soil, a chemical reaction occurs, which enhances the adhesion between soil particles. It can also improve the physical properties of the soil, such as reducing the plasticity and expansion of the soil, and reducing the compressibility of the soil, thereby improving the stability of the road.

[0003] When lime is used, it will be laid on the surface or buried deep depending on the conditions of the roadbed soil. For example, in the construction of urban roads in some collapsible loess areas, lime materials will be buried in the surface soil to improve the stability of the roadbed.

[0004] In view of the above situation where lime needs to be buried inside the soil, during the construction period, a certain amount of lime will be spread and buried in the soil in advance, and then the soil layer will be tested to detect its humidity, hardness and other parameters. If it does not meet the standard, lime will need to be added a second time until the various parameters of the soil layer reach the index value. The previously laid lime has been covered by the soil. At this time, if the second lime is laid, the lime needs to be placed under the soil layer to play the role of lime. Current construction equipment generally uses rotary tillage to raise the soil layer, and then lay lime. However, there are disadvantages in the rotary tillage and raising process, which will roll up the lime buried for the first time, resulting in some lime being unable to be used.

[0005] Therefore, a road paving device is proposed to solve the above problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a road paving device described in the present invention comprises a vehicle body, a feeding assembly is provided on the rear vehicle plate of the vehicle body, a plate body inclined downward is provided on the rear side of the feeding assembly, and a plurality of slotting assemblies are provided at the lower end of the plate body; the slotting assembly is used to open grooves on the road surface, and each slotting assembly comprises a motor, the motor is fixedly connected in a groove provided on the surface of the plate body, a turntable is fixedly connected to the output end of the motor, an anti-drop pin is provided at an eccentric position on the outer surface of the turntable, a lever is provided on the anti-drop pin, sliding holes are provided at both ends of the lever, the middle position of the lever is rotatably connected to the lower surface of the plate body, the sliding hole at one end of the lever is slidably connected to the anti-drop pin, and the other end of the lever extends to the lower end edge position of the plate body;

[0008] A strip-shaped slide groove is provided at the inner side of the lower end edge of the plate body, and the slide groove is provided along the width direction of the plate body. A slide rod is slidably connected in the slide groove, and a plurality of guide pins are evenly provided on the lower surface of the slide rod. The sliding hole at the other end of the lever is slidably connected to the guide pin, and a plurality of slotted plates are evenly provided on the lower surface of the slide rod. The slotted plates are fixed to the lower surface of the slide rod, and the slotted plates can extend below the road surface and swing.

[0009] Preferably, the loading assembly includes a pre-loading groove arranged at the high end position of the plate body, the upper port of the pre-loading groove is arranged in a flared shape, a cylinder is provided on the outer side wall of the pre-loading groove, the output end of the cylinder is arranged vertically upward, the output end of the cylinder is fixedly connected to a cross plate, the end of the cross plate extends to above the notch of the pre-loading groove, and the end of the cross plate is rotatably connected to a conical spiral push rod, and the spiral push rod is driven by a motor arranged on the cross plate.

[0010] Preferably, the surface of the vehicle plate is symmetrically provided with mounting grooves, a hydraulic cylinder is provided in the mounting groove, the hydraulic cylinder is arranged close to the lower end of the plate body, and the output end of the hydraulic cylinder is against the lower surface of the plate body;

[0011] The high end position of the plate body is fixedly connected to the bottom of the pre-installed groove, and the fixed connection point between the plate body and the pre-installed groove is rotatably connected to the vehicle body.

[0012] Preferably, guard plates are provided on both sides of the plate body, chains are provided between the guard plates, scrapers are provided on the chains, and both ends of the chain are rotatably connected to the high end and low end positions of the plate body respectively.

[0013] Preferably, a plurality of baffles are provided at the lower edge of the plate body, the baffles are fixedly connected to the plate body, a plurality of shear strips are provided on the inner side of the baffles, and the shear strips are fixedly connected to the upper surface of the slide rod. The shear strips cooperate with the baffles to shear and crush the material blocks sliding down from the plate body.

[0014] Preferably, each of the baffles and shear strips is arranged in an arc shape, and the edge of the scraper can scrape the material on the inner side of the shear strip.

[0015] Preferably, the rear end of the vehicle body is further provided with a soil covering assembly, which can cover the soil in the opened groove, and the soil covering assembly includes a triangular connecting frame, one end of the connecting frame is rotatably connected to the two sides of the vehicle body, and the other end of the connecting frame is rotatably connected to a roller body, and the roller body can compact and smooth the soil on the road surface;

[0016] A scraper strip is also provided on one side of the roller body. The scraper strip is arranged along the axis direction of the roller body, and both ends of the scraper strip are rotatably connected to the connecting frame through a torsion spring.

[0017] Preferably, the connecting frame is also provided with a spiral rod, and connecting plates are fixedly connected to the connecting frame at both ends of the spiral rod. The connecting plates are rotatably connected to the connecting frame through torsion springs, and driven wheels are fixedly connected to the outer rings of the inner rod bodies at both ends of the spiral rod. The driven wheel is connected to the driving wheel through belt drive, and the driving wheel is fixedly connected to the lower end rotating shaft of the chain.

[0018] Preferably, a plurality of clamping claws are provided on the side wall of the pre-installed groove, and the connecting frame is flipped over onto the pre-installed groove, so that the roller body can be embedded between two clamping claws disposed adjacent to each other in the upper and lower directions.

[0019] Preferably, a hook body is provided on the upper clamping jaw; and a binding rope with a ring body is provided on the lower clamping jaw.

[0020] The present invention is beneficial in that:

[0021] 1. In the present invention, the slotting assembly is designed to open a groove through a slotting plate, and then the lime sliding down from the plate body falls into the groove, and the second laid lime and the first laid lime are both laid below the soil layer, avoiding the first laid lime from rolling up, resulting in ineffective use of the lime.

[0022] 2. In the present invention, the gap between two adjacent baffles is designed to correspond to the grooves one by one, so that the lime can effectively fall into the grooves. At the same time, the shear bar arranged on the slide bar has the function of shearing the lime in cooperation with the baffles during the back and forth movement of the slide bar, which can further crush the lime and help improve the chemical reaction efficiency of the lime and the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A first perspective stereoscopic view of the road paving device of the present invention;

[0024] Figure 2 A second perspective stereoscopic view of the road paving device of the present invention;

[0025] Figure 3 A third perspective stereoscopic view of the road paving device of the present invention;

[0026] Figure 4 It is a front view of the road paving device of the present invention;

[0027] Figure 5 A top view of the road paving device of the present invention;

[0028] Figure 6 It is a three-dimensional diagram of the cooperation between the vehicle body and the soil covering assembly in the present invention;

[0029] Figure 7 It is a three-dimensional diagram of the matching of the plate body and the pre-installed groove in the present invention;

[0030] Figure 8It is a schematic diagram of the lower surface structure of the plate body in the present invention;

[0031] Fig. 9 A bottom view of the slotted assembly of the present invention;

[0032] Fig.10 is a cross-sectional view of the pre-installed groove in the present invention;

[0033] Fig.11 It is a three-dimensional diagram of the soil covering assembly in the present invention;

[0034] Fig.12 A three-dimensional diagram of the cooperation between the slide bar and the slotted plate in the present invention;

[0035] Fig.13 It is a three-dimensional diagram of the cooperation between the slide bar and the shear strip in the present invention.

[0036] In the figure: 1. vehicle body; 2. plate body; 3. motor; 4. turntable; 5. anti-drop pin; 6. lever; 7. slide groove; 8. slide rod; 9. guide pin; 10. slotted plate; 11. pre-installed groove; 12 cylinder; 13. cross plate; 14. spiral push rod; 15. mounting groove; 16. hydraulic cylinder; 17. guard plate; 18. chain; 19 scraper; 20. baffle; 21. shear strip; 22. connecting frame; 23. roller body; 24. scraper strip; 25. spiral rod; 26. connecting plate; 27. driven wheel; 28. driving wheel; 29. ​​clamping claw; 30. hook body; 31. binding rope. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] Reference Figure 1 - Fig.13 A road paving device comprises a vehicle body 1, a feeding assembly is provided on the rear vehicle plate of the vehicle body 1, a plate body 2 inclined downward is provided on the rear side of the feeding assembly, and a plurality of slotting assemblies are provided at the lower end of the plate body 2; the slotting assembly is used to make grooves on the road surface, and each slotting assembly comprises a motor 3, the motor 3 is fixedly connected in a groove provided on the surface of the plate body 2, a turntable 4 is fixedly connected at the output end of the motor 3, an anti-drop pin 5 is provided at an eccentric position on the outer surface of the turntable 4, a lever 6 is provided on the anti-drop pin 5, sliding holes are provided at both ends of the lever 6, the middle position of the lever 6 is rotatably connected to the lower surface of the plate body 2, the sliding hole at one end of the lever 6 is slidably connected to the anti-drop pin 5, and the other end of the lever 6 extends to the lower end edge position of the plate body 2;

[0039] A strip-shaped slide groove 7 is provided at the inner side of the lower edge of the plate body 2, and the slide groove 7 is provided along the width direction of the plate body 2. A slide rod 8 is slidably connected in the slide groove 7, and a plurality of guide pins 9 are evenly provided on the lower surface of the slide rod 8. The slide hole at the other end of the lever 6 is slidably connected to the guide pin 9, and a plurality of slotted plates 10 are evenly provided on the lower surface of the slide rod 8. The slotted plates 10 are fixed to the lower surface of the slide rod 8, and the slotted plates 10 can extend below the road surface to swing;

[0040] In this embodiment, the vehicle body 1 is a small engineering vehicle, which is more flexible and can adapt to more complex road surfaces; the bucket truck loads lime into the loading assembly, and then slides it along the plate body 2 to the ground, and at the same time the motor 3 drives the turntable 4 to rotate, the anti-drop pin 5 on the turntable 4 drives the lever 6 to swing, and multiple turntables 4 drive multiple levers 6 to swing back and forth alternately, and under the constraint of the guide pin 9, drive the slide bar 8 to swing back and forth along the slide groove 7, and at the same time the slide bar 8 drives the slotted plate 10 to swing back and forth, and the slotted plate 10 will push the soil layer away during the swinging process, that is, the slotted plate 10 moves back and forth along the moving direction of the vehicle body 1, and pushes a plurality of grooves on the ground, and during the pushing process, the slotted plate 10 will only push the surface soil layer, and will not touch the lime layer below the soil layer, that is, the slotted plate 10 will not stir up the lime layer below the soil layer, so that the lime layer laid for the first time is stable below the soil layer;

[0041] The grooved plate 10 digs a groove, and then the lime that slides down from the plate body 2 falls into the groove. The lime laid for the second time and the lime laid for the first time are both laid below the soil layer to avoid rolling up the lime laid for the first time, resulting in ineffective use of the lime. After the second lime laying is completed, the protruding soil on both sides of the groove can be covered in the groove.

[0042] Reference Figure 1 - Fig.10 The feeding assembly includes a pre-loading groove 11 arranged at the high end position of the plate body 2, the upper end of the pre-loading groove 11 is arranged in a flared shape, a cylinder 12 is arranged on the outer wall of the pre-loading groove 11, the output end of the cylinder 12 is arranged vertically upward, and the output end of the cylinder 12 is fixedly connected to a cross plate 13, the end of the cross plate 13 extends to the top of the notch of the pre-loading groove 11, and the end of the cross plate 13 is rotatably connected to a conical spiral push rod 14, and the spiral push rod 14 is driven by a motor arranged on the cross plate 13; the bucket truck sends the lime into the pre-loading groove 11, and the spiral push rod 14 is driven by a motor to control the rotation speed of the spiral push rod 14, and the speed of lime material discharge can be controlled, so that the lime can fall evenly into the opened groove, and at the same time, the spiral drop rod itself can squeeze the lime, and large pieces of lime can be squeezed and broken, so that the lime and soil are mixed and a chemical reaction occurs quickly;

[0043] The spiral push rod 14 is connected to the pre-loading groove 11 through the cylinder 12, so that the height of the spiral push rod 14 can be adjusted. The bucket of the bucket truck can put a large amount of lime at one time. In order to prevent the lime from jamming the spiral push rod 14, a cylinder 12 is provided. During the feeding process of the bucket truck, the cylinder 12 drives the spiral push rod 14 to move upward, reducing the contact between the spiral push rod 14 and the lime, so that the spiral push rod 14 can rotate smoothly.

[0044] Reference Figure 1 - Figure 6 The surface of the vehicle plate is symmetrically provided with mounting grooves 15, and a hydraulic cylinder 16 is provided in the mounting groove 15. The hydraulic cylinder 16 is arranged near the lower end of the plate body 2, and the output end of the hydraulic cylinder 16 is against the lower surface of the plate body 2;

[0045] The high end position of the plate body 2 is fixedly connected to the bottom of the pre-installed groove 11, and the fixed point of the plate body 2 and the pre-installed groove 11 is rotatably connected to the vehicle body 1; the plate body 2 and the pre-installed groove 11 are arranged as a whole and are rotatably connected to the vehicle body 1; the plate body 2 is pushed up by the hydraulic cylinder 16, the low end height of the plate body 2 is increased, and the height between the slotted plate 10 and the ground is also increased. This design can flexibly adjust the height of the slotted plate 10 according to the thickness of the surface soil layer, so that the slotted plate 10 can effectively move the soil layer without moving the lime layer laid for the first time. Moreover, when the road paving device is not in use, the plate body 2 is pushed up by the hydraulic cylinder 16, and the slotted plate 10 is away from the ground. When the vehicle body 1 is on a normal road, the slotted plate 10 can maintain a safe moving distance from the road surface, that is, when the vehicle body 1 is driving, the slotted plate 10 will not contact the road surface.

[0046] Reference Figure 1 - Fig.10 , guard plates 17 are provided on both sides of the plate body 2, chains 18 are provided between the guard plates 17, and scrapers 19 are provided on the chain 18. The two ends of the chain 18 are rotatably connected to the high-end and low-end positions of the plate body 2 respectively; the guard plates 17 can not only guide the flow of lime to prevent lime from spilling on both sides of the vehicle body 1, but also a chain 18 is provided between the guard plates 17, and a driving shaft on the chain 18 is provided at the high-end position of the plate body 2. A sprocket matching the chain 18 is provided on the driving shaft, and the driving shaft is driven by a motor provided on the outside of the outer guard plate 17. The chain 18 drives the scraper 19 to move, and the scraper 19 can scrape off the lime adhered to the surface of the plate body 2 to prevent the lime from accumulating on the plate body 2 over time. Moreover, the scraper 19 will squeeze the lime on the plate body 2 to further squeeze and crush the lime.

[0047] Reference Figure 1 - Figure 7A plurality of baffles 20 are provided at the lower edge of the plate body 2, the baffles 20 are fixedly connected to the plate body 2, a plurality of shearing strips 21 are provided on the inner side of the baffles 20, and the shearing strips 21 are fixedly connected to the upper surface of the slide bar 8, and the shearing strips 21 cooperate with the baffles 20 to shear and crush the material blocks sliding down from the plate body 2; the gap between two adjacent baffles 20 corresponds to the groove one by one, so that the lime can effectively fall into the groove, and at the same time, the shearing strips 21 arranged on the slide bar 8, in the process of moving back and forth with the slide bar 8, the shearing strips 21 cooperate with the baffles 20 to have the function of shearing the lime, which can further crush the lime and help improve the chemical reaction efficiency of the lime and the soil.

[0048] Reference Figure 1 - Fig.13 Each of the baffles 20 and shear strips 21 is arranged in an arc shape, and the edge of the scraper 19 can scrape the material on the inner side of the shear strip 21; the shape of the baffles 20 and the shear strips 21 is arranged so that when the scraper 19 moves, the edge of the scraper 19 can extend to the concave position of the shear strip 21 to scrape off the lime accumulated on its surface, thereby preventing the lime from accumulating on the shear strip 21 over time and affecting the subsequent falling of the lime.

[0049] Reference Figure 1 - Fig.11 The rear end of the vehicle body 1 is also provided with a soil covering assembly, which can cover the soil in the opened groove, and the soil covering assembly includes a triangular connecting frame 22, one end of the connecting frame 22 is rotatably connected to the two sides of the vehicle body 1, and the other end of the connecting frame 22 is rotatably connected to a roller body 23, and the roller body 23 can compact and smooth the soil on the road surface;

[0050] A scraper 24 is also provided on one side of the roller body 23. The scraper 24 is arranged along the axial direction of the roller body 23, and the two ends of the scraper 24 are rotatably connected to the connecting frame 22 through a torsion spring; the slotted plate 10 pushes the surface soil to both sides to form a groove. After the lime is laid in the groove, the soil needs to be backfilled in the groove later. The soil covering assembly arranged on the vehicle body 1 can backfill the soil in the groove. The roller body 23 squeezes the raised soil on both sides of the groove, and the soil is flattened. At the same time, the soil is also squeezed into the groove to achieve soil backfilling. There is no need to backfill the soil in the later stage, saving the cost and construction time of backfilling the soil in the later stage; a scraper 24 is provided on one side of the roller body 23, and the scraper 24 is rotatably connected to the connecting frame 22 through a torsion spring, so that the scraper 24 can always be attached to the surface of the roller body 23 and scrape off the soil adhered to the surface of the roller body 23, which is helpful for the roller body 23 to squeeze and backfill the soil.

[0051] Reference Figure 1 - Fig.11The connecting frame 22 is also provided with a spiral rod 25, and the two ends of the spiral rod 25 are fixedly connected with a connecting plate 26, and the connecting plate 26 is rotatably connected to the connecting frame 22 through a torsion spring, and the inner rod body outer ring of the two ends of the spiral rod 25 is fixedly connected with a driven wheel 27, and the driven wheel 27 is connected with a driving wheel 28 through a belt drive, and the driving wheel 28 is fixed to the low-end rotating shaft of the chain 18; when the chain 18 drives the scraper 19, the rotating shaft at the lower end of the chain 18 drives the driving wheel 28 to rotate, and the driving wheel 28 rotates through the belt drive driven wheel 27, and the driven wheel 27 can drive the spiral rod 25 to rotate. When the spiral rod 25 rotates, the soil raised by the road surface can be pushed into the groove, and then rolled and compacted by the roller body 23. The rotation and pushing of the spiral rod 25 can fully fill the soil back into the groove, and the roller body 23 rolls the soft soil layer, so that the lime can be fully covered in the soil, which is conducive to the chemical reaction of lime and soil.

[0052] Reference Figure 1 - Figure 7 , a plurality of clamping claws 29 are provided on the side wall of the pre-installed groove 11, and the connecting frame 22 is turned over to the pre-installed groove 11, and the roller body 23 can be embedded between two clamping claws 29 arranged adjacent to each other above and below; when the road paving device is not in use, the hydraulic cylinder 16 is first driven to lift the height of the lower end of the plate body 2 so that the slotted plate 10 is away from the ground, and then the belts on the driving wheel 28 and the driven wheel 27 are removed, and then the connecting frame 22 is turned over, and the roller body 23 is turned over into the clamping claw 29, and the clamping claw 29 clamps the roller body 23. At this time, the connecting frame 22 is stabilized, and finally the vehicle body 1 can travel normally on the road surface.

[0053] Reference Figure 4 The upper clamp 29 is provided with a hook body 30; the lower clamp 29 is provided with a binding rope 31 with a ring body; after the roller body 23 is embedded in the clamp 29, the binding rope 31 is used to further fix the roller body 23. The binding rope 31 passes around the roller body 23 and hooks the ring body on the hook body 30 on the upper clamp 29. At this time, the roller body 23 is clamped by the clamp 29 on the one hand, and constrained by the binding rope 31 on the other hand, thereby improving the stability of the roller body 23.

[0054] Working principle: In this embodiment, the vehicle body 1 is a small engineering vehicle, which is more flexible and can adapt to more complex road surfaces; the bucket truck loads lime into the loading assembly, and then slides it along the plate body 2 to the ground, and at the same time the motor 3 drives the turntable 4 to rotate, and the anti-drop pin 5 on the turntable 4 drives the lever 6 to swing, and multiple turntables 4 drive multiple levers 6 to swing back and forth alternately, and under the constraint of the guide pin 9, drive the slide bar 8 to swing back and forth along the slide groove 7, and at the same time the slide bar 8 drives the slotted plate 10 to swing back and forth, and the slotted plate 10 will push the soil layer away during the swinging process, that is, the slotted plate 10 moves back and forth left and right along the moving direction of the vehicle body 1, and pushes a plurality of grooves on the ground, and during the pushing process, the slotted plate 10 will only push the surface soil layer, and will not touch the lime layer below the soil layer, that is, the slotted plate 10 will not stir up the lime layer below the soil layer, so that the lime layer laid for the first time is stable below the soil layer;

[0055] The grooves are opened by the slotted plate 10, and then the lime sliding down from the plate body 2 falls into the grooves. The lime laid for the second time and the lime laid for the first time are laid below the soil layer to avoid rolling up the lime laid for the first time, which causes ineffective use of the lime. After the second lime laying is completed, the protruding soil on both sides of the grooves can be covered in the grooves.

[0056] The bucket truck delivers the lime into the pre-loading groove 11. The spiral push rod 14 is driven by a motor to control the rotation speed of the spiral push rod 14 and the speed of the lime material discharge, so that the lime can fall evenly into the opened groove. At the same time, the spiral drop rod itself can squeeze the lime and break the large pieces of lime, so that the lime and the soil can react quickly after mixing;

[0057] The spiral push rod 14 is connected to the pre-loading groove 11 through the cylinder 12, so that the height of the spiral push rod 14 can be adjusted. The bucket of the bucket truck can put a large amount of lime at a time. In order to prevent the lime from blocking the spiral push rod 14, a cylinder 12 is provided. During the feeding process of the bucket truck, the cylinder 12 drives the spiral push rod 14 to move upward, reducing the contact between the spiral push rod 14 and the lime, so that the spiral push rod 14 can rotate smoothly.

[0058] The plate body 2 and the pre-installed groove 11 are set as a whole and are rotatably connected to the vehicle body 1; the plate body 2 is pushed up by the hydraulic cylinder 16, the lower end height of the plate body 2 is increased, and the height between the slotted plate 10 and the ground is also increased. This design can flexibly adjust the height of the slotted plate 10 according to the thickness of the surface soil layer, so that the slotted plate 10 can effectively move the soil layer without moving the lime layer laid for the first time. Moreover, when the road paving device is not in use, the plate body 2 is pushed up by the hydraulic cylinder 16, and the slotted plate 10 is away from the ground. When the vehicle body 1 is on a normal road, the slotted plate 10 can maintain a safe distance from the road surface, that is, when the vehicle body 1 is driving, the slotted plate 10 will not contact the road surface;

[0059] The guard plate 17 can not only guide the flow of lime to prevent the lime from spilling on both sides of the vehicle body 1, but also a chain 18 is arranged between the guard plates 17. The drive shaft on the chain 18 is arranged at the high end of the plate body 2. The drive shaft is provided with a sprocket that matches the chain 18. The drive shaft is driven by a motor arranged outside the outer guard plate 17. The chain 18 drives the scraper 19 to move. The scraper 19 can scrape off the lime adhered to the surface of the plate body 2 to prevent the lime from accumulating on the plate body 2 over time. Moreover, the scraper 19 will squeeze the lime on the plate body 2 to further squeeze and crush the lime.

[0060] The gap between two adjacent baffles 20 corresponds to the grooves one by one, so that the lime can effectively fall into the grooves. At the same time, the shearing strips 21 arranged on the slide bar 8 cooperate with the baffles 20 to shear the lime during the back and forth movement of the slide bar 8, and the lime can be further crushed, which helps to improve the chemical reaction efficiency of the lime and the soil.

[0061] The shapes of the baffle 20 and the shear strip 21 are set so that when the scraper 19 moves, the edge of the scraper 19 can extend to the concave position of the shear strip 21 to scrape off the lime accumulated on its surface, thereby preventing the lime from accumulating on the shear strip 21 over time and affecting the subsequent falling of the lime.

[0062] The slotted plate 10 moves the surface soil to both sides to form a groove. After the lime is laid in the groove, the soil needs to be backfilled in the groove later. The soil covering assembly arranged on the vehicle body 1 can backfill the soil in the groove. The roller body 23 squeezes the soil raised on both sides of the groove, and the soil is flattened. At the same time, the soil is also squeezed into the groove to achieve soil backfilling. In the later stage, there is no need to backfill the soil, saving the cost and construction time of backfilling the soil later. A scraper bar 24 is arranged on one side of the roller body 23. The scraper bar 24 is rotatably connected to the connecting frame 22 through a torsion spring, so that the scraper bar 24 can always be attached to the surface of the roller body 23 and scrape off the soil adhered to the surface of the roller body 23, which is helpful for the roller body 23 to squeeze and backfill the soil.

[0063] When the chain 18 drives the scraper 19, the rotating shaft at the lower end of the chain 18 drives the driving wheel 28 to rotate, and the driving wheel 28 drives the driven wheel 27 to rotate through the belt, and the driven wheel 27 can drive the screw rod 25 to rotate. When the screw rod 25 rotates, it can push the soil raised on the road surface into the groove, and then it is rolled and compacted by the roller body 23. The rotation and pushing of the screw rod 25 can fully fill the soil back into the groove, and the roller body 23 rolls the soft soil layer, so that the lime can be fully covered in the soil, which is conducive to the chemical reaction between the lime and the soil.

[0064] When the road paving device is not in use, the hydraulic cylinder 16 is first driven to raise the lower end of the plate body 2 so that the slotted plate 10 is away from the ground. Then, the belts on the driving wheel 28 and the driven wheel 27 are removed. Then, the connecting frame 22 is turned over, and the roller body 23 is turned over into the clamping claw 29. The clamping claw 29 clamps the roller body 23. At this time, the connecting frame 22 is stabilized, and finally the vehicle body 1 can travel normally on the road.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A road paving device, characterized in that: The vehicle comprises a vehicle body (1), a loading assembly is provided on the rear vehicle plate of the vehicle body (1), a plate body (2) inclined downward is provided on the rear side of the loading assembly, and a plurality of slotting assemblies are provided at the lower end of the plate body (2); the slotting assemblies are used to open grooves on the road surface, and each slotting assembly comprises a motor (3), the motor (3) is fixedly connected to a groove provided on the surface of the plate body (2), a turntable (4) is fixedly connected to the output end of the motor (3), an anti-drop pin (5) is provided at an eccentric position on the outer surface of the turntable (4), a lever (6) is provided on the anti-drop pin (5), sliding holes are provided at both ends of the lever (6), the middle position of the lever (6) is rotatably connected to the lower surface of the plate body (2), the sliding hole at one end of the lever (6) is slidably connected to the anti-drop pin (5), and the other end of the lever (6) extends to the lower end edge position of the plate body (2); A strip-shaped slide groove (7) is provided at the inner side of the lower edge of the plate body (2), the slide groove (7) being provided along the width direction of the plate body (2), a slide rod (8) being slidably connected in the slide groove (7), a plurality of guide pins (9) being evenly provided on the lower surface of the slide rod (8), a slide hole at the other end of the lever (6) being slidably connected to the guide pins (9), and a plurality of slotted plates (10) being evenly provided on the lower surface of the slide rod (8), the slotted plates (10) being fixedly connected to the lower surface of the slide rod (8), and the slotted plates (10) being able to extend below the road surface and swing.

2. A road paving device according to claim 1, characterized in that: The loading assembly comprises a pre-installed groove (11) arranged at a high end position of a plate body (2), an upper end of the pre-installed groove (11) is arranged in a flared shape, a cylinder (12) is arranged on the outer wall of the pre-installed groove (11), an output end of the cylinder (12) is arranged vertically upward, a horizontal plate (13) is fixedly connected to the output end of the cylinder (12), an end of the horizontal plate (13) extends to above the notch of the pre-installed groove (11), and a conical spiral push rod (14) is rotatably connected to the end of the horizontal plate (13), and the spiral push rod (14) is driven by a motor arranged on the horizontal plate (13).

3. A road paving device according to claim 1, characterized in that: The surface of the vehicle plate is symmetrically provided with mounting grooves (15), a hydraulic cylinder (16) is provided in the mounting groove (15), the hydraulic cylinder (16) is arranged close to the lower end of the plate body (2), and the output end of the hydraulic cylinder (16) is against the lower surface of the plate body (2); The high end of the plate body (2) is fixedly connected to the bottom of the pre-installed groove (11), and the fixed point between the plate body (2) and the pre-installed groove (11) is rotatably connected to the vehicle body (1).

4. A road paving device according to claim 3, characterized in that: Guard plates (17) are provided on both sides of the plate body (2), chains (18) are provided between the guard plates (17), scrapers (19) are provided on the chains (18), and two ends of the chains (18) are rotatably connected to the high end and the low end of the plate body (2), respectively.

5. A road paving device according to claim 4, characterized in that: A plurality of baffles (20) are provided at the lower edge of the plate body (2), the baffles (20) being fixedly connected to the plate body (2), a plurality of shearing strips (21) are provided inside the baffles (20), and the shearing strips (21) are fixedly connected to the upper surface of the slide bar (8), and the shearing strips (21) cooperate with the baffles (20) to shear and crush material blocks sliding down from the plate body (2).

6. A road paving device according to claim 5, characterized in that: Each of the baffle plates (20) and the shear strip (21) is arranged in an arc shape, and the edge of the scraper plate (19) is capable of scraping the material on the inner side of the shear strip (21).

7. A road paving device according to claim 3, characterized in that: The rear end of the vehicle body (1) is also provided with a soil covering assembly, which can cover soil in the opened groove, and the soil covering assembly includes a triangular connecting frame (22), one end of the connecting frame (22) is rotatably connected to two sides of the vehicle body (1), and the other end of the connecting frame (22) is rotatably connected to a roller body (23), and the roller body (23) can compact and smooth the soil on the road surface; A scraper strip (24) is also provided on one side of the roller body (23). The scraper strip (24) is arranged along the axial direction of the roller body (23), and both ends of the scraper strip (24) are rotatably connected to the connecting frame (22) via a torsion spring.

8. A road paving device according to claim 7, characterized in that: The connecting frame (22) is further provided with a spiral rod (25), with connecting plates (26) fixedly connected at both ends of the spiral rod (25), the connecting plates (26) being rotatably connected to the connecting frame (22) via torsion springs, and with driven wheels (27) fixedly connected to the outer rings of the inner rod bodies at both ends of the spiral rod (25), the driven wheel (27) being connected to a driving wheel (28) via a belt drive, and the driving wheel (28) being fixedly connected to the lower end rotating shaft of the chain (18).

9. A road paving device according to claim 3, characterized in that: A plurality of clamping claws (29) are provided on the side wall of the pre-installed groove (11); the connecting frame (22) is flipped onto the pre-installed groove (11); and the roller body (23) can be embedded between two clamping claws (29) disposed adjacent to each other in the upper and lower directions.

10. A road paving device according to claim 9, characterized in that: The upper clamping jaw (29) is provided with a hook body (30); the lower clamping jaw (29) is provided with a binding rope (31) with a ring body.

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