Construction device capable of rapidly improving flatness of asphalt pavement

By combining a scraper and a flattening roller, the problem of unevenness caused by improper handling of excess asphalt pavement material was solved, and the smoothness of asphalt pavement and construction efficiency were improved rapidly.

CN224119401UActive Publication Date: 2026-04-14ZHEJIANG EXPRESSWAY MAINTENANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG EXPRESSWAY MAINTENANCE CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively remove excess material from asphalt pavements, resulting in uneven pavements that affect driving safety and service life.

Method used

A construction device was designed, which combines a scraper and a flattening roller. The scraper removes excess asphalt and guides it to the flattening roller, which then rolls to flatten it. The height of the flattening roller can be adjusted by an electric push rod to adapt to different road conditions.

Benefits of technology

It enables rapid improvement of the smoothness of asphalt pavement, enhances construction efficiency, reduces equipment maintenance time, and ensures pavement smoothness and service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224119401U_ABST
    Figure CN224119401U_ABST
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Abstract

The utility model relates to the technical field of road construction, in particular to a construction device capable of quickly improving the flatness of an asphalt pavement, which comprises a front frame, and a leveling device is fixedly connected to the middle of the upper end of an upper support frame; and the leveling device comprises an electric push rod and a fixing bolt, the left portion and the right portion of the front end of the adjusting frame are jointly provided with a removing assembly through fixing bolt threads, and the left portion and the right portion of the lower end of the adjusting frame are fixedly connected with sliding blocks. According to the construction device capable of rapidly improving the flatness of the asphalt pavement, redundant asphalt and protrusions are accurately and efficiently scraped and guided to be evenly distributed through the clearing assembly, the height and pressure of the flattening roller are flexibly adjusted in cooperation with the electric push rod for repeated flattening, the flatness of the asphalt pavement is remarkably improved, and the construction efficiency is improved. And meanwhile, the construction efficiency is greatly improved through the integrated operation process, the rapid adjustment function and the convenient and fast assembly installation mode.
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Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to a construction device that can quickly improve the smoothness of asphalt pavement. Background Technology

[0002] In road construction, asphalt pavement is widely used due to its good driving comfort, skid resistance and durability. As a key indicator for measuring the quality of asphalt pavement, pavement smoothness has a crucial impact on driving safety, comfort and pavement service life.

[0003] For example, CN220413949U discloses a joint treatment device for asphalt pavement, including a frame and a compaction component installed in the frame; by controlling the motor to drive the lead screw to rotate, the threaded sleeve on the lead screw can drive the compaction roller installed in the U-shaped mounting frame to move within the frame, which facilitates the compaction of the filling material at the joint;

[0004] Although this patent can compact the asphalt material at the joint of the compaction roller and scrape off the asphalt material adhering to the compaction roller with a scraper, it is not easy to flatten when there is too much asphalt material, and it is impossible to scrape off the excess asphalt material. The asphalt material scraped off by the scraper falls on the compacted road surface and will also affect the overall road surface smoothness. Its practicality is limited. Therefore, we have launched a construction device that can quickly improve the smoothness of asphalt road surface. Utility Model Content

[0005] The main objective of this invention is to provide a construction device that can quickly improve the smoothness of asphalt pavement, effectively solving the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A construction device that can quickly improve the smoothness of asphalt pavement includes a front frame, wherein an upper support frame is fixedly connected to the upper left, upper rear and upper right parts of the front frame, and a smoothing device is fixedly connected to the upper middle part of the upper support frame.

[0008] The leveling device includes an electric push rod and a fixing bolt. The output end of the electric push rod passes through the upper support frame and is fixedly connected to an adjusting frame. The front left and front right parts of the adjusting frame are jointly installed with a cleaning component through the fixing bolt thread. The lower left and lower right parts of the adjusting frame are both fixedly connected with sliders. The left and right ends of the two sliders are respectively movably installed with a first flattening roller and a second flattening roller through bearings. The electric push rod is fixedly installed in the upper middle part of the upper support frame.

[0009] Preferably, the cleaning component includes a long plate with a screw hole at the upper front end. A long frame is fixedly connected to the lower end of the long plate. Scrapers are fixedly installed at both the front and rear ends of the long frame. Several scraping strips are fixedly connected to the outer scraping wall of the scraper. The long plate is threadedly fixed to the adjusting frame by fixing bolts.

[0010] Preferably, the left and right rear ends of the front frame are fixedly connected to side plates, and the front ends of the two side plates are each provided with four reserved mounting holes. The left and right upper ends of the front frame are each provided with movable grooves, and the left and right ends of the front frame are each provided with sliding grooves.

[0011] Preferably, the lower left and lower right portions of the adjustment frame are slidably connected in the movable groove, the sliders are slidably connected in the sliding groove, and both sliders have an H-shaped structure.

[0012] Preferably, the two scrapers are inclined at a relative 30-degree angle, and the outer scraping walls of the scrapers are located on one side of the outer surface of the first flattening roller and the second flattening roller, respectively.

[0013] Preferably, the scraper strips are arranged at equal intervals along the outer wall of the scraper, and the extension direction of each scraper strip is consistent with the tilt direction of the scraper.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the scraper strips on the outer scraper wall of the cleaning component are arranged at equal intervals, and the scraper is inclined at a relative 30-degree angle. During the movement of the device, it can accurately and efficiently scrape off excess asphalt and protrusions on the road surface. At the same time, the scraper guides the scraped asphalt towards the first and second flattening rollers, making the asphalt distribution more uniform. In addition, the electric push rod can flexibly adjust the height of the adjustment frame, driving the first and second flattening rollers to adjust the pressure on the road surface, and repeatedly flattening the road surface after being treated by the cleaning component, thereby effectively avoiding the problem of uneven road surface caused by improper asphalt material treatment, and significantly improving the overall smoothness of the asphalt road surface.

[0016] 2. In this utility model, the functions of cleaning and flattening are combined. During the movement of the truck towing device, the cleaning component first cleans the road surface, scraping off excess asphalt and protrusions. Then, the first and second flattening rollers roll to flatten the surface, realizing an integrated "cleaning-flattening" operation process. At the same time, the electric push rod can quickly adjust the height and pressure of the flattening roller according to different road conditions and construction requirements. In addition, the cleaning component is installed by fixing bolts and adjusting brackets, which makes it easy to disassemble and replace, reducing equipment maintenance time and greatly improving the efficiency of asphalt pavement construction. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of a construction device that can quickly improve the smoothness of asphalt pavement according to the present invention.

[0018] Figure 2 This is a partial structural schematic diagram of a construction device that can quickly improve the smoothness of asphalt pavement according to the present invention.

[0019] Figure 3 This is a schematic diagram of the leveling device structure of a construction device that can quickly improve the smoothness of asphalt pavement according to the present invention.

[0020] Figure 4 This is a partial structural schematic diagram of a construction device that can quickly improve the smoothness of asphalt pavement according to the present invention.

[0021] Figure 5 This is a detailed enlarged structural diagram of section A of a construction device that can quickly improve the smoothness of asphalt pavement according to this utility model.

[0022] In the diagram: 1. Front frame; 2. Upper support frame; 3. Leveling device; 4. Side plate; 5. Pre-drilled mounting holes; 6. Slide groove; 7. Movable groove; 31. Electric push rod; 32. Adjusting frame; 33. Sliding block; 34. First flattening roller; 35. Second flattening roller; 36. Fixing bolt; 37. Cleaning assembly; 371. Long plate; 372. Screw hole; 373. Long frame; 374. Scraper; 375. Scraper strip. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figures 1-5 This utility model provides a technical solution:

[0027] A construction device that can quickly improve the smoothness of asphalt pavement includes a front frame 1, an upper support frame 2 that is fixedly connected to the upper left, upper rear and upper right parts of the front frame 1, and a smoothing device 3 that is fixedly connected to the upper middle part of the upper support frame 2.

[0028] Side plates 4 are fixedly connected to the left and right rear ends of the front frame 1. Four pre-reserved mounting holes 5 are opened at the front ends of the two side plates 4. Movable grooves 7 are opened at the left and right upper ends of the front frame 1. Sliding grooves 6 are opened between the left and right ends of the front frame 1.

[0029] In this embodiment, the leveling device 3 includes an electric push rod 31 and a fixing bolt 36. The output end of the electric push rod 31 passes through the upper support frame 2 and is fixedly connected to an adjusting frame 32. The left and right front ends of the adjusting frame 32 are threaded together with a cleaning component 37 through the fixing bolt 36. The left and right lower ends of the adjusting frame 32 are fixedly connected to sliders 33. The left and right ends of the two sliders 33 are respectively movably mounted with a first flattening roller 34 and a second flattening roller 35 through bearings. The electric push rod 31 is fixedly installed in the upper middle part of the upper support frame 2. The left and right lower ends of the adjusting frame 32 are slidably connected in the movable groove 7, and the sliders 33 are slidably connected in the sliding groove 6. Both sliders 33 have an H-shaped structure.

[0030] Through the above scheme: the electric push rod 31 is fixed to the middle of the upper end of the upper support frame 2. After starting, its output end passes through the upper support frame 2 and pushes the adjusting frame 32, which is fixedly connected to the output end, to move. The slider 33 at the lower end of the adjusting frame 32 slides in the movable groove 7 and the sliding groove 6 respectively. The slider 33 has an H-shaped structure to ensure that the adjusting frame 32 moves up and down smoothly, thereby driving the first flattening roller 34 and the second flattening roller 35 to adjust the height. At the same time, the front end of the adjusting frame 32 is equipped with a cleaning component 37 through a fixing bolt 36. When the device moves, the cleaning component 37 first scrapes off the excess asphalt and protrusions on the road surface. The two inclined scrapers 374 guide the asphalt to be distributed in the direction of the flattening roller. Then, the first flattening roller 34 and the second flattening roller 35 roll under the action of the bearing to flatten the road surface.

[0031] In this embodiment, the cleaning component 37 includes a long plate 371. A screw hole 372 is opened at the upper front end of the long plate 371. A long frame 373 is fixedly connected to the lower end of the long plate 371. Scrapers 374 are fixedly installed at both the front and rear ends of the long frame 373. Several scraper strips 375 are fixedly connected to the outer scraping wall of the scraper 374. The long plate 371 is fixedly installed to the adjusting frame 32 by fixing bolts 36. The two scrapers 374 are inclined at a relative 30-degree angle. The outer scraping wall of the scraper 374 is located on one side of the outer surface of the first flattening roller 34 and the second flattening roller 35, respectively. The scraper strips 375 are arranged at equal intervals along the outer scraping wall of the scraper 374, and the extension direction of each scraper strip 375 is consistent with the inclination direction of the scraper 374.

[0032] Through the above scheme: the long plate 371 is threadedly fixed to the front end of the adjusting frame 32 by engaging with the fixing bolt 36 through the screw hole 372, ensuring a stable connection. The scraper blades 374 installed at the front and rear ends of the long frame 373 fixed at the lower end of the long plate 371, when the device moves with the truck, use the scraper blades 375 arranged at equal intervals on the outer scraper wall to scrape off excess asphalt and protrusions on the asphalt road surface. Since the two scraper blades 374 are inclined at a relative 30-degree angle, and the outer scraper wall is located on one side of the outer surface of the first flattening roller 34 and the second flattening roller 35 respectively, during the scraping process, the scraper blades 374 can guide the scraped asphalt towards the flattening roller, making the asphalt more evenly distributed on the road surface. The extension direction of each scraper blade 375 is consistent with the inclination direction of the scraper blade 374, further enhancing the scraping and guiding effect.

[0033] It should be noted that this utility model is a construction device that can quickly improve the smoothness of asphalt pavement. The construction device is connected to a truck through the reserved installation hole 5, and the truck tows the device on the asphalt pavement. During the journey, the various components of the construction device work together to achieve the purpose of quickly improving the smoothness of the asphalt pavement. First, when the device is started, the electric push rod 31 starts to work. Its output end passes through the upper support frame 2 and pushes the adjusting frame 32 to move downward. Since the lower left and lower right parts of the adjusting frame 32 are slidably connected in the movable groove 7, and the sliders 33 are slidably connected in the sliding groove 6, the adjusting frame 32 can move up and down smoothly, thereby driving the first flattening roller 34 and the second flattening roller 35 to descend to a suitable height to perform preliminary flattening treatment on the asphalt pavement. During the flattening process, the cleaning component 37 plays an important role. The long plate 371 in the cleaning component 37 is fixedly installed to the adjusting frame 32 by the fixing bolt 36, ensuring that it is stably installed at the front end of the adjusting frame 32. The scraper 374 fixed to the lower end of the long frame 373 is fixedly connected to several scraper walls. Each scraper 375 effectively removes excess asphalt and protrusions from the asphalt pavement. Two scraper blades 374 are inclined at a relative 30-degree angle, and the outer scraping walls of the scraper blades 374 are located on one side of the outer surface of the first flattening roller 34 and the second flattening roller 35, respectively. This design allows the scraper blades 374 to guide the asphalt towards the flattening rollers during the movement of the device, making the asphalt distribution more uniform. The scraper blades 375 are arranged at equal intervals along the outer scraping walls of the scraper blades 374, and the extension direction of each scraper blade 375 is consistent with the inclination direction of the scraper blades 374, further enhancing the scraping effect and ensuring the smoothness of the road surface. As the truck towing device moves forward, the first flattening roller 34 and the second flattening roller 35 roll under the action of the bearings, continuously flattening the asphalt pavement after being treated by the cleaning component 37, so that the smoothness of the asphalt pavement is rapidly improved. The height of the adjusting frame 32 can be flexibly adjusted by the electric push rod 31 according to different road conditions and construction requirements, thereby adjusting the pressure of the first flattening roller 34 and the second flattening roller 35 on the road surface to achieve the best flattening effect.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A construction device for rapidly improving the smoothness of asphalt pavement, comprising a front frame (1), characterized in that: The upper left, upper rear and upper right parts of the front frame (1) are fixedly connected to an upper support frame (2), and a leveling device (3) is fixedly connected to the upper middle part of the upper support frame (2). The leveling device (3) includes an electric push rod (31) and a fixing bolt (36). The output end of the electric push rod (31) passes through the upper support frame (2) and is fixedly connected to an adjusting frame (32). The left and right front ends of the adjusting frame (32) are threaded together with a cleaning component (37) through the fixing bolt (36). The left and right lower ends of the adjusting frame (32) are fixedly connected with sliders (33). The left and right ends of the two sliders (33) are respectively movably installed with a first flattening roller (34) and a second flattening roller (35) through bearings. The electric push rod (31) is fixedly installed in the middle of the upper end of the upper support frame (2).

2. The construction device for rapidly improving the smoothness of asphalt pavement according to claim 1, characterized in that: The cleaning component (37) includes a long plate (371), with a screw hole (372) at the upper front end of the long plate (371). A long frame (373) is fixedly connected to the lower end of the long plate (371). Scrapers (374) are fixedly installed at both the front and rear ends of the long frame (373). Several scraper strips (375) are fixedly connected to the outer scraping wall of the scraper (374). The long plate (371) is threadedly fixed to the adjusting frame (32) by a fixing bolt (36).

3. The construction device for rapidly improving the smoothness of asphalt pavement according to claim 1, characterized in that: The left and right rear ends of the front frame (1) are fixedly connected with side plates (4), and the front ends of the two side plates (4) are each provided with four reserved mounting holes (5). The left and right upper ends of the front frame (1) are each provided with movable grooves (7), and the left and right ends of the front frame (1) are each provided with sliding grooves (6).

4. The construction device for rapidly improving the smoothness of asphalt pavement according to claim 1, characterized in that: The lower left and lower right parts of the adjustment frame (32) are slidably connected in the movable groove (7), and the sliders (33) are slidably connected in the sliding groove (6), and both sliders (33) are H-shaped.

5. A construction device for rapidly improving the smoothness of asphalt pavement according to claim 2, characterized in that: The two scrapers (374) are inclined at a relative 30-degree angle, and the outer scraping walls of the scrapers (374) are located on one side of the outer surface of the first flattening roller (34) and the second flattening roller (35), respectively.

6. The construction device for rapidly improving the smoothness of asphalt pavement according to claim 2, characterized in that: The scraper strips (375) are arranged at equal intervals along the outer scraping wall of the scraper (374), and the extension direction of each scraper strip (375) is consistent with the tilting direction of the scraper (374).

Citation Information

Patent Citations

  • Joint treatment device for asphalt pavement

    CN220413949U