Paving structure used in road paving vehicles

Abstract

This invention discloses a paving structure for a road paving vehicle, comprising: a paving frame for connecting to the working arm of the road paving vehicle; a winding drum and a rotating assembly, the rotating assembly driving the winding drum to rotate around its own axis on the paving frame; and a road surface roll wound on the winding drum, the road surface roll including road panels connected sequentially along its length, the length direction of the road panels being parallel to the axial direction of the winding drum, and adjacent road panels being detachably and rotatably connected. This invention features an ingenious structural design. Through the detachable connection between adjacent road panels, the road panels laid on the ground can be separated from those wound on the winding drum according to actual needs during paving. After use, the road panels on the ground can be quickly connected to the road panels on the winding drum, facilitating winding and storage without the need for deliberate selection and replacement of the road surface roll, thus making operation more convenient.

Description

Technical Field

[0001] This invention relates to the field of road paving technology, and in particular to a paving structure for use in road paving vehicles. Background Technology

[0002] To ensure the passage of vehicles and personnel in low-load-bearing areas such as beaches, mud, snow, swamps, and mountain roads, it is often necessary to repeatedly lay and remove temporary pavements on the roadbed. Additionally, in special circumstances, such as when roads are washed away by floods or destroyed by bombs during wartime, it is also necessary to pre-lay temporary, emergency construction roads. Currently, there are various automated mechanical devices for laying and removing temporary pavements, such as the laying device for hard pavement laying vehicles disclosed in announcement number CN105064183B. Compared to manual laying and removal, these devices offer higher work efficiency, significantly reduce the workload of workers, and are easier to operate.

[0003] In the process of road paving, various types of road rolls are usually used. When the road roll is unwound from the winding drum and laid on the ground, it forms a temporary road surface for vehicles and people to pass through. For example, the temporary road paving machine disclosed in Chinese invention patent CN217104620U can form a bamboo-shaped road surface, a roller curtain-shaped road surface, or a block-shaped bamboo mat-shaped road surface after the road roll is laid on the ground, thereby solving the road traffic problem.

[0004] However, the road surface rolls used in the aforementioned devices have a fixed length and cannot be disassembled. Therefore, when using these devices to lay temporary roads, it is necessary to select a road surface roll of appropriate length according to the road paving length requirements before laying the road, which is cumbersome. Furthermore, during paving, the entire road surface roll must be unwound from the winding drum and laid on the ground to separate the road surface roll from the winding drum. It is impossible to adjust the usable portion of the road surface roll according to actual needs and separate the required usable portion from the winding drum, further increasing the complexity of device operation. In addition, during the winding and unwinding process of the road surface roll, it is necessary to keep the winding speed and unwinding speed of the winding drum consistent with the driving speed of the road paving vehicle to control the tension of the road surface roll within a suitable range. When there is a deviation between the two, the tension of the road surface roll will be too high or too low. If the tension is too high, the road surface roll is prone to tautness and breakage. If the tension is too low, the road surface roll is prone to loosening, affecting its winding and unwinding quality.

[0005] Therefore, it is necessary to improve the paving structure used in existing road paving vehicles. Summary of the Invention

[0006] This invention provides a paving structure for road paving vehicles, which can adjust the length of the paved road surface according to actual needs while ensuring that the road roll is smoothly laid on the ground.

[0007] The specific technical solution is as follows:

[0008] A paving structure for use in road paving vehicles, comprising:

[0009] A paving frame for connecting to the working arm of a road paving vehicle;

[0010] A winding drum and a rotating assembly, wherein the rotating assembly drives the winding drum to rotate about its own axis on the laying frame;

[0011] A road surface roll, which is wound on a winding drum, includes road panels connected sequentially along its length. The length direction of the road panels is parallel to the axial direction of the winding drum, and adjacent road panels are detachably and rotatably connected.

[0012] Furthermore, in order to achieve a detachable connection between two adjacent road panels, each end of the road panel is provided with a screw extending along its own axis. The screw is threadedly connected to a screw sleeve. The screw sleeves corresponding to two adjacent road panels are rotatably connected by a connecting rod, which is sleeved outside the screw sleeve.

[0013] Furthermore, to prevent the connecting rod from detaching from the threaded sleeve, an annular groove is provided on the threaded sleeve, and the end of the connecting rod is located within the annular groove.

[0014] Furthermore, to facilitate the sequential disassembly of the corresponding threaded sleeves at both ends of the connecting rod, the width of the annular groove is greater than the thickness of the connecting rod.

[0015] Furthermore, in order to ensure the flatness of both sides of the temporary road surface, the threaded sleeve and the threaded rod are both located between the planes of the two end faces of the road panel.

[0016] Furthermore, in order to ensure that the road surface roll is stably wound onto the winding drum or stably unwound, a buffer assembly is provided on the paving frame. The buffer assembly is used to automatically adjust the tension between two adjacent road panels when the road surface roll is wound and unwound, so that the winding speed and unwinding speed of the road surface roll are consistent with the driving speed of the road paving vehicle.

[0017] Furthermore, in order to automatically adjust the tension between two adjacent road panels when the winding drum rotates, the buffer assembly includes a first buffer roller, the axis of which is parallel to the axis of the winding drum, and the first buffer roller is connected to an elastic telescopic unit that drives itself to move radially to conform to the road surface roll.

[0018] Furthermore, in order to enable the first buffer roller to move radially, the elastic telescopic unit includes a roller sleeve, a compression spring, a sliding rod, and a sliding sleeve. The roller sleeve is sleeved outside the roller shaft of the first buffer roller, the sliding sleeve is fixed to the laying frame, the sliding rod slides with the sliding sleeve and is detachably connected to the roller sleeve, and the compression spring is sleeved outside the sliding rod and sandwiched between the roller sleeve and the sliding sleeve.

[0019] Furthermore, in order to guide the winding and unwinding path of the road surface roll, a second buffer roller is also provided on the paving frame. The second buffer roller rotates around its own axis on the side of the road surface roll away from the first buffer roller, and the roller surface of the second buffer roller is in contact with the road surface roll.

[0020] Furthermore, to enhance the buffering function, the laying frame is provided with a downwardly inclined sliding opening, and the roller shaft of the second buffer roller slides within the sliding opening.

[0021] The invention features a clever structural design. Through the detachable connection between two adjacent road panels, the road panels laid on the ground can be separated from the road panels wound on the winding drum according to actual needs during road paving. After use, the road panels on the ground can be quickly connected to the road panels on the winding drum, which is convenient for winding and storage. There is no need to deliberately select and replace the road rolls, so the operation is more convenient.

[0022] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 yes Figure 1 An explosion diagram;

[0026] Figure 3 This is a schematic diagram of the road surface roll portion of the present invention wound on a winding cylinder;

[0027] Figure 4 yes Figure 3 The front view;

[0028] Figure 5 This is a schematic diagram of the road surface roll section of the present invention laid on the ground;

[0029] Figure 6 yes Figure 5 Top view;

[0030] Figure 7 yes Figure 5 An explosion diagram;

[0031] Figure 8 yes Figure 7 Enlarged view of part A;

[0032] Figure 9 This is a schematic diagram of the connection structure between the laying frame and the buffer assembly of the present invention;

[0033] Figure 10 yes Figure 9 An explosion diagram;

[0034] In the diagram: 100, laying frame; 110, sliding groove; 120, strip plate; 130, laying arm; 200, winding drum; 210, drum body; 220, winding shaft; 230, limiting plate; 240, fixed shaft; 300, rotating assembly; 310, motor; 320, drive pulley; 330, synchronous belt; 340, driven pulley; 350, bearing; 400, pavement panel; 410, mounting hole; 420, notch; 500 510. Mounting rod; 520. Screw sleeve; 521. Annular groove; 522. Convex ring; 530. Limiting ring; 600. Connecting rod; 610. Sleeve hole; 700. First buffer roller; 800. Elastic telescopic unit; 810. Roller sleeve; 811. Threaded tube; 812. Flanged edge; 820. Compression spring; 830. Slide rod; 831. Limiting plate; 840. Slide sleeve; 900. Second buffer roller; 910. Positioning plate. Detailed Implementation

[0035] To better understand the purpose, function, and specific design of this invention, the following detailed description of the paving structure of this invention applied to a road paving vehicle is provided in conjunction with the accompanying drawings.

[0036] like Figures 1-10 As shown, the paving structure of the present invention applied to a road paving vehicle includes:

[0037] Paving frame 100 is used to connect with the working arm of the road paving vehicle;

[0038] The winding drum 200 and the rotating component 300 drive the winding drum 200 to rotate around its own axis on the laying frame 100;

[0039] The road surface roll is wound on a winding drum 200. The road surface roll includes road panels 400 connected sequentially along its own length direction. The length direction of the road panels 400 is parallel to the axial direction of the winding drum 200. Adjacent road panels 400 are detachably and rotatably connected.

[0040] The paving frame 100 of the present invention includes a strip plate 120 and paving arms 130 fixed at both ends of one side of the strip plate 120. The strip plate 120 is used to connect with the working arm of the road paving vehicle, so that the paving frame 100 is movable. The winding cylinder 200 includes a cylinder body 210, a winding shaft 220 and two limiting discs 230. The winding cylinder 200 is located between the two strip plates 120 and the axial direction of the winding cylinder 200 is parallel to the length direction of the strip plate 120. The winding shaft 220 is fixedly connected to the cylinder body 210 along the coaxial center line and passes through the two paving arms 130. The two limiting discs 230 are fixed to the circumferential outer edge of the winding cylinder 200 along the axial direction of the winding cylinder 200. The two sides of the road roll are adjacent to the two limiting discs 230. The road roll is neatly wound onto the cylinder body 210 by the two limiting discs 230.

[0041] like Figure 2 As shown, the rotating assembly 300 includes a motor 310, a drive wheel 320, a timing belt 330, a driven wheel 340, and two bearings 350. The outer rings of the two bearings 350 are respectively fixed to the outer sides of the two laying arms 130, and the inner rings are fixedly connected to the end of the winding shaft 220. The motor 310 is fixed on one of the laying arms 130, and the output end of the motor 310 is fixedly connected to the coaxial center line of the drive wheel 320. The drive wheel 320 is connected to the driven wheel 340 through the timing belt 330. The driven wheel 340 is fixedly connected to the outer ring of one of the bearings 350.

[0042] After the motor 310 starts, it can drive the drive wheel 320 to rotate around its own axis. Through the synchronous belt 330, it acts on the driven wheel 340, so that the driven wheel 340 rotates stably under the support of the bearing 350. It also drives the winding shaft 220 between the two bearings 350 to rotate, so that the winding drum 200 rotates around its own axis. Depending on the rotation direction of the winding drum 200, the road surface roll is wound up or unwound.

[0043] The road surface roll includes multiple strip-shaped road panels 400. The length direction of the road panel 400 is parallel to the axis of the winding cylinder 200. Adjacent road panels 400 are rotatably connected, and their relative rotation axis is consistent with the length direction of the road panel 400. This allows the road surface roll composed of multiple road panels 400 to be wound on the cylinder 210 for storage and collection, or to be laid flat on the ground to form a temporary road surface for vehicles and pedestrians to pass through.

[0044] Unlike existing technologies, in the road surface rolls of this invention, adjacent road panels 400 are detachably connected. Thus, during the laying of temporary road surfaces, a sufficient number of road surface rolls with road panels 400 are installed on the winding drum 200 to ensure that the road surface rolls have sufficient length, making the overall length of the road surface rolls greater than the required length of the road surface to be laid. When the temporary road surface formed by the road panels 400 laid on the ground reaches the required length of the road surface to be laid, the road panels 400 adjacent to the winding drum 200 and located at the end of the temporary road surface laid on the ground are disassembled and separated from the road panels 400 that are not laid on the ground and are adjacent to the aforementioned road panels 400. The entire paving operation can be completed without the need to deliberately select road surface rolls of appropriate length according to paving requirements and perform replacement operations. Therefore, the road surface laying operation using this paving structure is more convenient and faster. After the temporary road surface is used up, the road panel 400 laid on the ground is connected to the road panel 400 wound on the cylinder 210 to form the entire road surface roll. Then, while the road paving vehicle is traveling, the rotating component 300 is started to wind the road surface roll onto the cylinder 210, thereby completing the winding and collection of the entire road surface roll.

[0045] A further improvement is that both ends of the road panel 400 are provided with screws 510 extending along their own axial direction. The screws 510 are threadedly connected to the sleeves 520. The sleeves 520 of two adjacent road panels 400 are rotatably connected by a connecting rod 600, which is sleeved on the outside of the sleeves 520.

[0046] When connecting two adjacent road panels 400, the two threaded sleeves 520 corresponding to the adjacent portions of the two adjacent road panels 400 are respectively tightened and fixed to the screws 510 at the ends of the road panels 400, thereby connecting the two adjacent road panels 400. Since the connecting rod 600 is sleeved outside the threaded sleeves 520, the connecting rod 600 can rotate around the axis of the threaded sleeves 520, thus facilitating the rotation of the connecting rod 600 and satisfying the function of rotatable connection of the two adjacent road panels 400. When separating the two adjacent road panels 400, the two threaded sleeves 520 are unscrewed from the screws 510 at the ends of the two adjacent road panels 400, thereby removing the connecting rod 600 and separating the two adjacent road panels 400. In this way, a detachable rotatable connection of the two adjacent road panels 400 is achieved. In the connected state, the rotation axis of the two adjacent road panels 400 is parallel to the length direction of the road panels 400.

[0047] Specifically, such as Figures 5-8As shown, the road panel 400 is provided with two mounting holes 410 arranged side by side along its width direction. The mounting holes 410 are through holes with their axial direction parallel to the length direction of the road panel 400. A mounting rod 500 is sealed and inserted inside the mounting hole 410. Two screws 510 are coaxially fixed at both ends of the mounting rod 500. Furthermore, a limit ring 530 is welded and fixed between the screws 510 and the mounting rod 500. The limit ring 530 fits against the road panel 400 to prevent axial displacement of the screws 510 and the mounting rod 500. The screws 510 are connected to the threaded sleeves 520 through the threaded connection and are connected to the two threaded sleeves 520 by the connecting rod 600, thereby realizing the detachable connection of two adjacent road panels 400.

[0048] A further improvement is that the threaded sleeve 520 is provided with an annular groove 521, and the end of the connecting rod 600 is located in the annular groove 521; the width of the annular groove 521 is greater than the thickness of the connecting rod 600.

[0049] The outer circumferential edge of the threaded sleeve 520 is provided with two convex rings 522 arranged side by side along its own axis. The outer circumferential edge of the threaded sleeve 520 and the two convex rings 522 enclose and form an annular groove 521. The two ends of the connecting rod 600 are provided with sleeve holes 610. The connecting rod 600 is sleeved between the two convex rings 522 through the sleeve holes 610, that is, between the two inner walls of the annular groove 521. In this way, the connecting rod 600 and the threaded sleeve 520 are limited and connected, preventing the connecting rod 600 from separating from the threaded sleeve 520.

[0050] Furthermore, the distance between the two protruding rings 522, that is, the width of the annular groove 521, is greater than the thickness of the end of the connecting rod 600. This allows the two threaded sleeves 520 to be operated separately during disassembly and separation. First, one threaded sleeve 520 is rotated so that the two end faces of the connecting rod 600 are respectively engaged with the protruding rings 522 at different positions on the two threaded sleeves 520. Then, the other threaded sleeve 520 is rotated so that the two end faces of the connecting rod 600 are again engaged with the protruding rings 522 at different positions on the two threaded sleeves 520. By alternating between the two threaded sleeves 520, the detachable connection of the two road panels 400 can be completed.

[0051] A further improvement is that both the threaded sleeve 520 and the threaded rod 510 are located between the two end faces of the pavement panel 400.

[0052] Specifically, notches 420 are provided at the four corners of the road panel 400. The center line of the mounting hole 410 passes through the notch 420. The threaded sleeve 520 and the threaded rod 510 are both set in the notch 420, which avoids the road surface from bulging on both sides during the road roll laying and ensures that the width of the temporary road surface is consistent along its own length.

[0053] Based on the specific structure of the road surface roll described above, such as Figure 2As shown, a fixed shaft 240 is provided between the two limiting discs 230. The fixed shaft 240 is close to the cylinder 210. The fixed shaft 240 passes through the connecting rod 600 sleeve hole 610 corresponding to the road panel 400 at the end of the road roll, so as to facilitate the road roll being wound onto the winding cylinder 200.

[0054] A further improvement is that a buffer assembly is provided on the paving frame 100. The buffer assembly is used to automatically adjust the tension between two adjacent road panels 400 when the road roll is wound up and unwound, so that the winding speed and unwinding speed of the road roll are consistent with the travel speed of the road paving vehicle.

[0055] Specifically, during the laying or winding of temporary pavement, the speed of the pavement laying vehicle is inconsistent with the winding and unwinding speed of the pavement roll. This results in excessive or insufficient tension between two adjacent pavement panels 400 within the pavement roll. When the tension between the two adjacent pavement panels 400 is too high, the pavement roll is prone to breakage and damage. Therefore, a buffer component is used to reduce the tension of the pavement roll. Conversely, when the tension between the two adjacent pavement panels 400 is too low, the pavement roll becomes sluggish. In this case, the buffer component is used to strengthen the tension between the two adjacent pavement panels 400 to ensure stable winding and unwinding of the pavement roll.

[0056] In one specific embodiment, the buffer assembly includes a first buffer roller 700, the axial direction of which is parallel to the axial direction of the winding drum 200, and the first buffer roller 700 is connected to an elastic telescopic unit 800 that drives itself to move radially to conform to the road surface roll.

[0057] Specifically, the elastic telescopic unit 800 drives the first buffer roller 700 to move horizontally away from the winding drum 200, so that the circumferential roller surface of the first buffer roller 700 adheres to one of the road surface panels 400 of the road surface roll. Since the elastic telescopic unit 800 can drive the first buffer roller 700 to move horizontally, when the tension of the road surface roll is too high, the telescopic range of the elastic telescopic unit 800 decreases, and part of the road surface panel 400 moves closer to the winding drum 200 to prevent the road surface panels 400 from breaking; when the tension of the road surface roll is too low, the telescopic range of the elastic telescopic unit 800 increases, so that the road surface panel 400 moves away from the winding drum 200, ensuring the winding and unwinding quality of the road surface roll.

[0058] To ensure good cushioning performance, two elastic telescopic units 800 are provided in this invention, which are respectively installed on the two laying arms 130 and connected to the two ends of the first buffer roller 700.

[0059] In one specific embodiment, the elastic telescopic unit 800 includes a roller sleeve 810, a roller compression spring 820, a slide rod 830, and a slide sleeve 840. The roller sleeve 810 is sleeved on the outside of the roller shaft of the first buffer roller 700, the slide sleeve 840 is fixed on the laying frame 100, the slide rod 830 is slidably engaged with the slide sleeve 840 and detachably connected to the roller sleeve 810, and the roller compression spring 820 is sleeved on the outside of the slide rod 830 and sandwiched between the roller sleeve 810 and the slide sleeve 840.

[0060] Specifically, the roller sleeve 810 is sealed on the roller shaft of the first buffer roller 700. The roller sleeve 810 is provided with a threaded tube 811, the axis of which extends horizontally. A flange 812 is provided on the outer side of the end of the threaded tube 811 away from the roller sleeve 810. The threaded tube 811 is threadedly connected to a slide rod 830. A limit plate 831 is integrally fixed at the end of the slide rod 830 away from the threaded tube 811. A slide sleeve 840 is provided between the limit plate 831 and the flange 812. The slide sleeve 840 is welded and fixed to the laying arm 130. The slide rod 830 and the slide sleeve 840 slide in cooperation. A compression spring 820 is provided on the outer sleeve of the slide rod 830. The two ends of the compression spring 820 abut against the flange 812 and the slide sleeve 840, respectively.

[0061] With the above structure, the sliding rod 830 and the sliding sleeve 840 slide together, allowing the first buffer roller 700 to move along the axis parallel to the sliding rod 830. The compression spring 820 provides variable elastic force. When the tension of the road surface roll changes, the extension length of the compression spring 820 changes, and the elastic force provided changes. The sliding rod 830 slides on the sliding sleeve 840. The limiting plate 831 prevents the sliding rod 830 from disengaging from the sliding sleeve 840. Furthermore, the sliding rod 830 is threadedly connected to the threaded tube 811, making the sliding rod 830 detachable and facilitating the replacement of the compression spring 820.

[0062] A further improvement is that a second buffer roller 900 is also provided on the paving frame 100. The second buffer roller 900 rotates around its own axis on the side of the road roll away from the first buffer roller 700. The roller surface of the second buffer roller 900 is in contact with the road roll. The paving frame 100 is provided with a downwardly inclined sliding opening 110, and the roller shaft of the second buffer roller 900 slides in the sliding opening 110.

[0063] Specifically, both laying arms 130 are provided with inclined downward strip-shaped sliding openings 110. The two ends of the roller shaft of the second buffer roller 900 are respectively provided with two sliding openings 110. The end of the roller shaft of the second buffer roller 900 is fixed with a positioning plate 910 that fits against the laying arm 130 to prevent the second buffer roller 900 from axially shifting. The outer diameter of the roller shaft of the second buffer roller 900 is consistent with the width of the sliding opening 110, so that the second buffer roller 900 can slide along the sliding opening 110 and at the same time easily rotate around its own axis.

[0064] The road surface roll passes between the first buffer roller 700 and the second buffer roller 900, while the slide 110 is inclined downwards. The second buffer roller 900, under its own weight, is inclined downwards along the slide 110, so that the second buffer roller 900 can automatically abut against one of the road surface panels 400 of the road surface roll under the action of gravity. When the tension of the road surface roll is too high, the second buffer roller 900 moves upwards along the slide 110 to suppress the increase of the tension of the road surface roll. When the tension of the road surface roll is too low, the second buffer roller 900 moves downwards along the slide 110 to increase the tension of the road surface roll, ensuring the winding and unwinding quality of the road surface roll, thereby strengthening the buffering function.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A paving structure for use in road paving vehicles, characterized in that, include: A paving frame for connecting to the working arm of a road paving vehicle; A winding drum and a rotating assembly, wherein the rotating assembly drives the winding drum to rotate about its own axis on the laying frame; A road surface roll, the road surface roll being wound on a winding drum, the road surface roll comprising road panels connected sequentially along its own length direction, the length direction of the road panels being parallel to the axial direction of the winding drum, and adjacent road panels being detachably and rotatably connected; each end of the road panel is provided with a screw extending along its own axial direction, the screw being threadedly connected to a screw sleeve, and the screw sleeves corresponding to adjacent road panels being rotatably connected by a connecting rod, the connecting rod being sleeved outside the screw sleeve; The paving frame is equipped with a buffer assembly, which is used to automatically adjust the tension between two adjacent road panels when the road roll is wound up and unwound, so that the winding speed and unwinding speed of the road roll are consistent with the driving speed of the road paving vehicle. The buffer assembly includes a first buffer roller, the axial direction of which is parallel to the axial direction of the winding drum, and the first buffer roller is connected to an elastic telescopic unit that drives itself to move radially to conform to the road surface roll. The paving frame is also equipped with a second buffer roller, which rotates around its own axis on the side of the road roll away from the first buffer roller, and the roller surface of the second buffer roller is in contact with the road roll; the paving frame is provided with a downwardly inclined sliding opening, and the roller shaft of the second buffer roller slides in the sliding opening.

2. The paving structure applied to a road paving vehicle as described in claim 1, characterized in that, The threaded sleeve is provided with an annular groove, and the connecting rod is located in the annular groove.

3. The paving structure applied to a road paving vehicle as described in claim 2, characterized in that, The width of the annular groove is greater than the thickness of the connecting rod.

4. The paving structure applied to a road paving vehicle as described in claim 1, characterized in that, Both the threaded sleeve and the threaded rod are located between the two end faces of the road panel.

5. The paving structure applied to a road paving vehicle as described in claim 1, characterized in that, The elastic telescopic unit includes a roller sleeve, a compression spring, a sliding rod, and a sliding sleeve. The roller sleeve is sleeved outside the roller shaft of the first buffer roller. The sliding sleeve is fixed on the laying frame. The sliding rod slides with the sliding sleeve and is detachably connected to the roller sleeve. The compression spring is sleeved outside the sliding rod and sandwiched between the roller sleeve and the sliding sleeve.

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