Concrete paving equipment

Abstract

This invention discloses a concrete paving device, including a frame, a paving mechanism, a vibration mechanism, and a compaction mechanism. The paving mechanism includes: a leveling plate, which is vertically fixed inside the frame and perpendicular to the movement direction of the frame; multiple pressure sensors are spaced along the length of the bottom of the leveling plate on the side away from the vibration mechanism; two vertical lifting platforms, symmetrically arranged on both sides of the frame; a transverse moving module is provided between the two vertical lifting platforms, which is arranged along the length of the leveling plate and opposite to the side of the leveling plate away from the vibration mechanism; the transverse moving module includes a first motor, a lead screw, and a nut seat; a scraper is fixed at the bottom of the nut seat; and a controller, which is connected to the pressure sensors, the vertical lifting platforms, and the first motor. This invention has the advantages of automatic concrete leveling, low labor intensity, and high construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of road construction equipment. More specifically, this invention relates to a concrete paving device. Background Technology

[0002] During road construction, after concrete is poured onto the road surface, it needs to be leveled, vibrated, and compacted using paving equipment. Existing concrete paving equipment generally uses a spiral mixer for leveling. However, due to the varying thickness of the concrete poured onto the road surface, using only a spiral mixer for leveling can easily result in an uneven paved road surface. During construction, workers are also needed to pull and rake the piles of concrete in front of the spiral distributor onto the road surface. Using manual rake pre-paving requires a large amount of manpower and is labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to provide a concrete paving device to at least solve the above-mentioned problems.

[0004] To achieve the objectives and other advantages of this invention, a concrete paving device is provided, comprising a frame, and a paving mechanism, a vibration mechanism, and a compaction mechanism sequentially mounted on the frame from front to back along the frame's direction of movement. The paving mechanism includes: a leveling plate, vertically fixed within the frame and perpendicular to the frame's direction of movement; multiple pressure sensors spaced along the length of the bottom of the leveling plate on the side away from the vibration mechanism; two vertical lifting platforms symmetrically positioned on both sides of the frame; a lateral movement module positioned between the two vertical lifting platforms; the lateral movement module being arranged along the length of the leveling plate and opposite the side of the leveling plate away from the vibration mechanism; the lateral movement module including a first motor, a lead screw, and a nut seat; a scraper fixed to the bottom of the nut seat; and a controller connected to the pressure sensors, the vertical lifting platforms, and the first motor, for controlling the vertical lifting platforms and the first motor to move the scraper according to the detection signals from the pressure sensors, thereby pre-leveling the locally accumulated concrete in front of the leveling plate.

[0005] Preferably, in the concrete paving device, at least one photoelectric switch is provided above each pressure sensor, the photoelectric switch is connected to the controller, and a light-blocking plate is fixed on the top of the nut seat, the photoelectric switch can be triggered by the light-blocking plate that moves with the nut seat.

[0006] Preferably, in the concrete paving device, the bottom of the slab has a cavity along its length, and the bottom of the cavity has multiple openings spaced apart along its length. A rotating rod is coaxially rotatably connected in each opening. A gear is fitted on the part of the rotating rod located in the cavity. The gear meshes with a chain and is driven to rotate by a second motor located on the outside of the frame. A helical blade is fitted on the part of the rotating rod located below the slab.

[0007] Preferably, in the concrete paving device, the bottom of the scraper is provided with a plurality of slots spaced apart along its length, and each slot is provided along the width of the scraper and communicates with the outside.

[0008] Preferably, the concrete paving device further includes two push plates, which are symmetrically arranged on both sides of the inside of the frame and located in front of the flat plate. The bottom surface of each push plate is flush with the bottom surface of the flat plate and is driven by a linear drive assembly located on the outside of the frame to extend and retract along the length of the flat plate.

[0009] Preferably, in the concrete paving device, the pusher plate includes a first pusher plate and a second pusher plate. The first pusher plate is located on the side close to the flat plate and perpendicular to the flat plate. The second pusher plate is located on the side of the first pusher plate away from the flat plate and is inclined into the frame. The top surface of the second pusher plate is lower than the top surface of the first pusher plate, and the bottom surface of the second pusher plate is flush with the bottom surface of the first pusher plate.

[0010] Preferably, in the concrete paving device, the vibration mechanism includes a vibration roller and a third motor. The vibration roller is horizontally disposed inside the frame and perpendicular to the direction of movement of the frame. Both ends of the vibration roller are rotatably connected to the frame and are driven to rotate by the third motor fixed to the outside of the frame.

[0011] Preferably, in the concrete paving device, the compaction mechanism includes two compaction rollers and a fourth motor. The two compaction rollers are horizontally spaced within the frame and perpendicular to the direction of movement of the frame. Both ends of each compaction roller are rotatably connected to the frame and driven to rotate by the fourth motor fixed to the outside of the frame.

[0012] Preferably, in the concrete paving device, multiple rollers are symmetrically arranged on both sides of the bottom of the frame, and each roller is rotatably connected to the outer side of the frame.

[0013] The present invention has at least the following beneficial effects:

[0014] The paving mechanism of the present invention includes a flat slab, multiple pressure sensors, a vertical lifting platform, a horizontal moving module, a scraper, and a controller. The controller controls the vertical lifting platform and the horizontal moving module to drive the scraper through the detection signals of the pressure sensors. The scraper pre-levels the concrete locally accumulated in front of the flat slab, replacing manual raking. By cooperating with the flat slab, the concrete can be automatically leveled, resulting in low labor intensity and high construction efficiency.

[0015] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0016] Figure 1 This is a top view schematic diagram of a concrete paving device according to an embodiment of the present invention;

[0017] Figure 2 This is a side sectional view of a concrete paving device according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a flat plate according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of one of the push plates in one embodiment of the present invention. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings, so that those skilled in the art can implement it based on the description.

[0021] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0022] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] like Figures 1-3As shown, the present invention provides a concrete paving device, including a frame 1, and a paving mechanism, a vibration mechanism, and a compaction mechanism sequentially arranged on the frame 1 from front to back along the movement direction of the frame 1; the paving mechanism includes: a leveling plate 2, which is vertically fixed inside the frame 1 and perpendicular to the movement direction of the frame 1, and a plurality of pressure sensors 3 are spaced along its length on the bottom side of the leveling plate 2 away from the vibration mechanism; two vertical lifting platforms 4, which are symmetrically arranged on the outer sides of the frame 1, and a transverse moving module is provided between the two vertical lifting platforms 4. The lateral moving module is arranged along the length of the leveling plate 2 and is opposite to the side of the leveling plate 2 away from the vibrating mechanism. The lateral moving module includes a first motor 5, a lead screw 6 and a nut seat 7. A scraper 8 is fixed at the bottom of the nut seat 7. A controller (not shown) is connected to the pressure sensor 3, the vertical lifting platform 4 and the first motor 5 respectively. It is used to control the vertical lifting platform 4 and the first motor 5 to drive the scraper 8 to move according to the detection signal of the pressure sensor 3, so as to pre-level the concrete locally accumulated in front of the leveling plate 2.

[0024] In the above embodiments, the concrete paving device includes a frame 1, a paving mechanism, a vibration mechanism, and a compaction mechanism. The frame 1, vibration mechanism, and compaction mechanism can all be configured according to existing technologies, and will not be elaborated here. This embodiment mainly improves the paving mechanism. Specifically, the paving mechanism includes a flat plate 2, multiple pressure sensors 3, a vertical lifting platform 4, a horizontal moving module, a scraper 8, and a controller. The flat plate 2 is vertically fixed inside the frame 1 and perpendicular to the movement direction of the frame 1. Multiple pressure sensors 3 are spaced along the length of the bottom side of the flat plate 2 away from the vibration mechanism, such as... Figure 1 , Figure 3As shown, for a flat plate with a width of 375cm, three pressure sensors can be equally spaced at its bottom, with a spacing of 100-120cm between adjacent pressure sensors. Two vertical lifting platforms 4 are symmetrically arranged on both sides of the frame 1 and in front of the flat plate 2. Preferably, the vertical lifting platforms 4 can be hydraulic lifting platforms for easier control and support. A lateral movement module is located between the two vertical lifting platforms 4, including a first motor 5, a lead screw 6, and a nut seat 7. The first motor 5 is fixed on one of the vertical lifting platforms 4, and the lead screw 6 is arranged along the length of the flat plate 2 and opposite to the flat plate 2. One end of the lead screw 6 is connected to the output end of the first motor 5, and the other end... One end is rotatably connected to a mounting plate on another vertical lifting platform 4. A nut seat 7 is located in the part of the lead screw 6 located inside the frame 1. A scraper 8 is fixed at the bottom of the nut seat 7. When the vertical lifting platform 4 is in its lowest position, the bottom surface of the scraper 8 is flush with the bottom surface of the flat plate 2. Preferably, vertically arranged guide slots are provided on both sides of the frame 1 opposite to the lead screw 6. The two ends of the lead screw 6 extend out of the frame 1 through adjacent guide slots and are connected to the first motor 5 or the mounting plate. The controller is located on the outside of the frame 1 and is connected to the pressure sensor, the vertical lifting platform 4 and the first motor 5 respectively. The controller is used to control the vertical lifting platform according to the detection signal of the pressure sensor 3. 4 and the first motor 5 drive the scraper 8 to move, pre-leveling the locally accumulated concrete in front of the flat plate 2. Preferably, in the initial state, the vertical lifting platform 4 is at its highest position, and the nut seat 7 is close to the first motor 5. The control process of the controller is as follows: acquire the detection signals of multiple pressure sensors 3, determine whether there is a detection signal greater than the preset pressure threshold, if so, acquire the pressure sensor 3 corresponding to the detection signal of the maximum pressure value and the detection signal of the minimum pressure value, first control the first motor 5 to rotate forward until the nut seat 7 drives the baffle 8 to move to the preset position corresponding to the pressure sensor 3 corresponding to the detection signal of the maximum pressure value, and then control the vertical lifting platform 4 to move to the highest position. The system starts at a low position, and then, based on the positional relationship between the pressure sensor 3 corresponding to the maximum pressure value detection signal and the pressure sensor 3 corresponding to the minimum pressure value detection signal, it controls the first motor 5 to rotate forward or backward until the nut seat 7 drives the baffle 8 to move to the preset position corresponding to the pressure sensor 3 corresponding to the minimum pressure value detection signal. Finally, it controls the vertical lifting platform 4 to move to the highest position and controls the first motor 5 to rotate in reverse until the nut seat 7 resets, thus completing one round of rake pre-paving. After a preset interval, the detection signals of multiple pressure sensors 3 are acquired again and judged. If none are found, the detection signals of multiple pressure sensors 3 are acquired again after a preset interval and judged. For ease of understanding, the following is used: Figure 3 The pressure sensor in the diagram illustrates the control process of the controller. Figure 3The pressure sensors in the controller are named from left to right as the first pressure sensor, the second pressure sensor, and the third pressure sensor. The controller receives the detection signals from the three pressure sensors: 1. Assuming there is a detection signal greater than a preset pressure threshold, and the second pressure sensor's signal is the maximum pressure value detection signal, while the first pressure sensor's signal is the minimum pressure value detection signal, the controller controls the first motor 5 to rotate forward until the nut seat 7 moves the baffle 8 to the preset position corresponding to the second pressure sensor. Then, the controller controls the vertical lifting platform 4 to move to the lowest position. Next, the controller controls the first motor 5 to rotate in the reverse direction until the nut seat 7 moves the baffle 8 to the preset position corresponding to the first pressure sensor. Finally, the controller controls the vertical lifting platform 4 to move to the highest position and controls the first motor 5 to rotate in the reverse direction until the nut seat 7 resets. After a preset time interval, such as 5 seconds, the controller again acquires the detection signals from the three pressure sensors and determines the result. 1. If there is a detection signal greater than the preset pressure threshold, and the detection signal of the second pressure sensor is the maximum pressure value detection signal, and the signal of the third pressure sensor is the minimum pressure value detection signal, then the controller controls the first motor 5 to rotate forward until the nut seat 7 drives the baffle 8 to move to the preset position corresponding to the second pressure sensor, then controls the vertical lifting platform 4 to move to the lowest position, then controls the first motor 5 to rotate forward until the nut seat 7 drives the baffle 8 to move to the preset position corresponding to the third pressure sensor, and finally controls the vertical lifting platform 4 to move to the highest position and controls the first motor 5 to rotate in the reverse direction until the nut seat 7 resets. After a preset time interval, such as 5 seconds, the detection signals of the three pressure sensors 3 are acquired again and judged. 2. If there is no detection signal greater than the preset pressure threshold, then after a preset time interval, such as 5 seconds, the detection signals of the three pressure sensors 3 are acquired again and judged.

[0025] In this embodiment, the paving mechanism includes a slab, multiple pressure sensors, a vertical lifting platform, a horizontal moving module, a scraper, and a controller. The controller uses the detection signals from the pressure sensors to control the vertical lifting platform and the horizontal moving module to drive the scraper. The scraper pre-levels the concrete piled up in front of the slab, replacing manual raking. By cooperating with the slab, the concrete can be automatically leveled, resulting in low labor intensity and high construction efficiency.

[0026] In another embodiment, at least one photoelectric switch 9 is provided above each pressure sensor 3, the photoelectric switch 9 is connected to the controller, and a light-blocking plate 10 is fixed on the top of the nut seat 7. The photoelectric switch 9 can be triggered by the light-blocking plate 10 that moves with the nut seat 7.

[0027] Specifically, a photoelectric switch 9 is installed on each side above each pressure sensor 3. Two adjacent pressure sensors 3 share one photoelectric switch 9. Each photoelectric switch 9 is connected to the controller, and one pressure sensor 3 is associated with two photoelectric switches 9. The controller has a built-in photoelectric switch mapping table. If the pressure sensor 3 corresponding to the maximum pressure detection signal is to the left of the pressure sensor 3 corresponding to the minimum pressure detection signal, then the photoelectric switch 9 to the left of the pressure sensor 3 corresponding to the maximum pressure detection signal and the photoelectric switch 9 to the right of the pressure sensor 3 corresponding to the minimum pressure detection signal are turned on. If the pressure sensor 3 corresponding to the maximum pressure detection signal is to the right of the pressure sensor 3 corresponding to the minimum pressure detection signal, then the photoelectric switch 9 to the right of the pressure sensor 3 corresponding to the maximum pressure detection signal and the photoelectric switch 9 to the left of the pressure sensor 3 corresponding to the minimum pressure detection signal are turned on. For ease of understanding, this is also referred to as... Figure 3 Using Zhongguang Optoelectronic Switch 9 as an example, we will illustrate... Figure 3 The photoelectric switches 9 in the controller are named from left to right as the first photoelectric switch, the second photoelectric switch, the third photoelectric switch, and the fourth photoelectric switch. The controller receives detection signals from the three pressure sensors: 1. Assuming there is a detection signal greater than the preset pressure threshold, and the detection signal from the second pressure sensor is the maximum pressure value detection signal, and the signal from the first pressure sensor is the minimum pressure value detection signal, the controller controls the first motor 5 to rotate forward until the nut seat 7 moves the baffle 8 to the point where the third photoelectric switch is triggered by the light-blocking plate 10. Then, the controller controls the vertical lifting platform 4 to move to the lowest position. Then, the controller controls the first motor 5 to rotate in the reverse direction until the nut seat 7 moves the baffle 8 to the point where the first photoelectric switch is triggered by the light-blocking plate 10. Finally, the controller controls the vertical lifting platform 4 to move to the highest position and controls the first motor 5 to rotate in the reverse direction until the nut seat 7 resets. After a preset time interval, such as 5 seconds, the controller acquires the detection signals from the three pressure sensors 3 again. 1. Judgment; 2. Assuming there is a detection signal greater than the preset pressure threshold, and the detection signal of the second pressure sensor is the maximum pressure value detection signal, and the signal of the third pressure sensor is the minimum pressure value detection signal, then the controller controls the first motor 5 to rotate forward until the nut seat 7 drives the baffle 8 to move and trigger the second photoelectric switch by the light blocking plate 10, then controls the vertical lifting platform 4 to move to the lowest position, then controls the first motor 5 to rotate forward until the nut seat 7 drives the baffle 8 to move and trigger the fourth photoelectric switch by the light blocking plate 10, and finally controls the vertical lifting platform 4 to move to the highest position and controls the first motor 5 to rotate in the reverse direction until the nut seat 7 resets. After a preset time interval, such as 5s, the detection signals of the three pressure sensors 3 are acquired again and judged; 3. Assuming there is no detection signal greater than the preset pressure threshold, after a preset time interval, such as 5s, the detection signals of the three pressure sensors 3 are acquired again and judged.

[0028] In this embodiment, a photoelectric switch is added above the pressure sensor, and a light-blocking plate is fixed on the top of the nut seat. The photoelectric switch can be triggered by the light-blocking plate that moves with the nut seat, so as to locate the moving position of the nut seat through the photoelectric switch and realize the automatic control of the scraper movement process.

[0029] In another embodiment, the bottom of the slab plate 2 has a cavity 11 along its length. Multiple openings are spaced apart along the length of the bottom of the cavity 11. A rotating rod 12 is coaxially rotatably connected to each opening. A gear 13 is fitted onto the portion of the rotating rod 12 located within the cavity 11. The gear 13 meshes with a chain 14 and is driven to rotate by a second motor 15 located outside the frame 1. A helical blade 16 is fitted onto the portion of the rotating rod 12 located below the slab plate 2. Here, by setting a rotating rod driven by a second motor at the bottom of the slab plate and fitting a helical blade onto the lower part of the rotating rod, the lower part of the rotating rod extends into the concrete during paving. The helical blade mixes and shears the concrete to eliminate air bubbles, further improving the smoothness of the concrete.

[0030] In another embodiment, the bottom of the scraper 8 is provided with a plurality of slots 17 spaced apart along its length direction. Each slot 17 is provided along the width direction of the scraper 8 and communicates with the outside. By providing slots 7, the resistance of the scraper 8 is reduced, and the scraper 8 is prevented from being damaged due to excessive resistance.

[0031] In another embodiment, the concrete paving device further includes two push plates 18, symmetrically arranged on both sides of the inner side of the frame 1 and located in front of the leveling plate 2. The bottom surface of each push plate 18 is flush with the bottom surface of the leveling plate 2, and is driven by a linear drive assembly 19 located on the outside of the frame 1 to extend and retract along the length of the leveling plate 2. Preferably, the linear drive assembly 19 is a hydraulic cylinder. The linear drive assembly 19 reciprocates throughout the paving process to drive the push plates 18 to push the concrete located at the edge of the road towards the center of the road. The push plates 18 do not interfere with the scraper 8 during the reciprocating motion. Specifically, the minimum horizontal distance between the push plates 18 and the scraper 8 when the vertical lifting platform 4 is at its lowest position is 2-5 cm.

[0032] Furthermore, such as Figure 4As shown, the pusher plate 18 includes a first pusher plate 20 and a second pusher plate 21. The first pusher plate 20 is located near the flat plate 2 and perpendicular to it. The second pusher plate 21 is located on the side of the first pusher plate 20 away from the flat plate 2 and is inclined inwards towards the frame 1. The top surface of the second pusher plate 21 is lower than the top surface of the first pusher plate 20, and the bottom surface of the second pusher plate 21 is flush with the bottom surface of the first pusher plate 20. Here, by setting the top surface of the second pusher plate to be lower than the top surface of the first pusher plate and the second pusher plate to be inclined inwards towards the frame, excess concrete between the pusher plate and the inner wall of the frame can overflow from the top surface of the second pusher plate when the linear drive assembly retracts and moves the pusher plate closer to the inner wall of the frame, thus ensuring the smoothness of the concrete at the road edge.

[0033] In another embodiment, the vibration mechanism includes a vibrating roller 22 and a third motor 23. The vibrating roller 22 is horizontally disposed inside the frame 1 and perpendicular to the direction of movement of the frame 1. Both ends of the vibrating roller 22 are rotatably connected to the frame 1 and are driven to rotate by the third motor 23 fixed to the outside of the frame 1. Here, the third motor drives the vibrating roller to rotate, thereby vibrating the concrete to remove air from the concrete and improve its density.

[0034] In another embodiment, the compaction mechanism includes two compaction rollers 24 and a fourth motor 25. The two compaction rollers 24 are horizontally spaced within the frame 1 and perpendicular to the direction of movement of the frame 1. Both ends of each compaction roller 24 are rotatably connected to the frame 1 and are driven to rotate by the fourth motor 25 fixed to the outside of the frame 1. Here, the fourth motor drives the two compaction rollers to rotate, thus compacting the concrete.

[0035] In another embodiment, a plurality of rollers 26 are symmetrically provided on both sides of the bottom of the frame 1. Each roller 26 is rotatably connected to the outer side of the frame 1. The rollers contact the roadbed and roll relative to each other to drive the frame forward.

[0036] The number of devices and processing capacity described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the concrete paving apparatus of this invention will be readily apparent to those skilled in the art.

[0037] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A concrete paving device, characterized in that, The machine includes a frame, and a paving mechanism, a vibrating mechanism, and a compaction mechanism are sequentially mounted on the frame from front to back along the direction of movement of the frame; the paving mechanism includes: The plate is vertically fixed inside the frame and perpendicular to the direction of movement of the frame. Multiple pressure sensors are spaced along its length on the bottom side of the plate away from the vibrating mechanism. Two vertical lifting platforms are symmetrically arranged on both sides of the outer side of the frame. A horizontal moving module is provided between the two vertical lifting platforms. The horizontal moving module is arranged along the length of the whole plate and is opposite to the side of the whole plate away from the vibrating mechanism. The horizontal moving module includes a first motor, a lead screw and a nut seat. A scraper is fixed at the bottom of the nut seat. The controller is connected to the pressure sensor, the vertical lifting platform and the first motor respectively, and is used to control the vertical lifting platform and the first motor to drive the scraper to move according to the detection signal of the pressure sensor, so as to pre-level the concrete locally accumulated in front of the leveling plate. At least one photoelectric switch is provided above each pressure sensor. The photoelectric switch is connected to the controller. A light-blocking plate is fixed on the top of the nut seat. The photoelectric switch can be triggered by the light-blocking plate that moves with the nut seat. The bottom of the flat plate has a cavity along its length. The bottom of the cavity has multiple openings spaced apart along its length. A rotating rod is coaxially rotatably connected in each opening. A gear is fitted on the part of the rotating rod located in the cavity. The gear meshes with a chain and is driven to rotate by a second motor located on the outside of the frame. A helical blade is fitted on the part of the rotating rod located below the flat plate.

2. The concrete paving device as described in claim 1, characterized in that, The bottom of the scraper is provided with a plurality of slots spaced apart along its length, and each slot is provided along the width of the scraper and communicates with the outside.

3. The concrete paving device as described in claim 1, characterized in that, It also includes two push plates, which are symmetrically arranged on both sides of the inside of the frame and located in front of the flat plate. The bottom surface of each push plate is flush with the bottom surface of the flat plate and is driven by a linear drive assembly located on the outside of the frame to extend and retract along the length of the flat plate.

4. The concrete paving device as described in claim 3, characterized in that, The push plate includes a first push plate and a second push plate. The first push plate is located on the side close to the flat plate and is perpendicular to the flat plate. The second push plate is located on the side of the first push plate away from the flat plate and is inclined into the frame. The top surface of the second push plate is lower than the top surface of the first push plate, and the bottom surface of the second push plate is flush with the bottom surface of the first push plate.

5. The concrete paving device as described in claim 1, characterized in that, The vibration mechanism includes a vibration roller and a third motor. The vibration roller is horizontally disposed inside the frame and perpendicular to the direction of movement of the frame. Both ends of the vibration roller are rotatably connected to the frame and are driven to rotate by the third motor fixed to the outside of the frame.

6. The concrete paving device as described in claim 1, characterized in that, The compaction mechanism includes two compaction rollers and a fourth motor. The two compaction rollers are horizontally spaced within the frame and perpendicular to the direction of movement of the frame. Both ends of each compaction roller are rotatably connected to the frame and are driven to rotate by the fourth motor fixed to the outside of the frame.

7. The concrete paving device as described in claim 1, characterized in that, The bottom of the frame is symmetrically provided with multiple rollers on both sides, and each roller is rotatably connected to the outer side of the frame.

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