Leveling equipment for highway pavement
By coordinating the design of components such as the base plate, push plate, scraper, and tamping plate, and using a threaded rod and gear transmission system to adjust the angle of the push plate, the problem of pushing excess material onto the already leveled road surface in asphalt pavement leveling devices is solved, thus improving the leveling effect and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-13
AI Technical Summary
In existing technologies, when asphalt pavement leveling devices are used for reciprocating leveling, asphalt material is easily pushed onto the already leveled pavement, affecting the leveling effect.
The design incorporates components such as a base plate, push plate, shovel, compactor plate, and vibrator. Through a threaded rod and gear transmission system, the angles of the push plate and shovel are adjustable, ensuring that excess soil is always pushed in one direction and avoiding being pushed onto the leveled road surface.
This method prevents excess soil from being pushed onto the leveled road surface during the leveling process, simplifying the operation and improving the leveling effect and practicality.
Smart Images

Figure CN223991234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leveling equipment technology, and in particular to a leveling device for highway pavement. Background Technology
[0002] Highway engineering refers to the surveying, measurement, design, construction, maintenance, and management of highway structures. Highway engineering structures include: roadbed, pavement, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, as well as buildings, workshops and other service facilities used for construction, maintenance and monitoring. Before paving the road surface with cement, the roadbed needs to be leveled.
[0003] For example, Chinese Patent Publication No. CN214497090U describes an asphalt pavement leveling device for highway engineering, belonging to the field of highway engineering equipment technology. The asphalt pavement leveling device for highway engineering includes a main body, a fixed cylinder fixedly connected to the lower end of the main body, a turntable slidably connected inside the fixed cylinder, a main shaft fixedly connected to the upper end of the turntable, a first helical tooth fixedly connected to the upper end of the main shaft passing through the main body, a driving device fixedly connected to the upper end of the main body, a second helical tooth meshing with the first helical tooth fixedly connected to the left output end of the driving device, and multiple first sliding rods vertically and symmetrically arranged through the turntable inside the fixed cylinder, which can perform initial leveling of asphalt through the set shovel mechanism.
[0004] However, in the above scheme, when the device is used, by pushing the corresponding asphalt material to both sides, the asphalt material will be pushed onto the already leveled road surface during the reciprocating leveling process, thus affecting the leveling effect of the road surface. Utility Model Content
[0005] This invention provides a leveling device for highway pavements to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A road surface leveling device includes a base plate, two inclined plates fixedly connected to one top end of the base plate, a push rod fixedly connected between the upper ends of the two inclined plates, an mounting plate fixedly connected to the bottom of the base plate, a push plate connected to the side wall of the mounting plate via an adjustment structure, a scraper fixedly connected to the side wall of the push plate, a first flattening roller rotatably connected to the bottom of the base plate, a vibrator fixedly connected to the bottom of the base plate, a tamping plate provided at the bottom of the vibrator, and a second flattening roller rotatably connected to the bottom of the base plate, with the vibrator located between the first flattening roller and the second flattening roller.
[0008] As a further improvement to this technical solution: the adjustment structure includes two internally threaded tubes. The outer ring sidewalls of the two internally threaded tubes are rotatably connected to the mounting plate via bearings. Each of the two internally threaded tubes has a threaded rod threaded into it. The two threaded rods are located at different positions within the internally threaded tubes. One end of each threaded rod is rotatably connected to the sidewall of the push plate. A driven gear is fixedly connected to the outer ring sidewall of each of the two internally threaded tubes. A motor is fixedly connected to the sidewall of the mounting plate. One end of the motor's output shaft is fixedly connected to a driving gear. The driving gear meshes with one of the driven gears. A connecting rod is rotatably connected to the sidewall of the mounting plate. One end of the connecting rod is fixedly connected to a transmission gear. The transmission gear meshes with the driving gear and with the other driven gear.
[0009] As a further improvement to this technical solution: both threaded rods are made of stainless steel.
[0010] As a further improvement to this technical solution: a storage box is fixedly connected to the top of the base plate.
[0011] As a further improvement to this technical solution: a cushion is provided on the top of the base plate.
[0012] As a further improvement to this technical solution: the surface of the push rod is provided with anti-slip texture.
[0013] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of components such as the base plate, push plate, shovel, and tamping plate, the device can push excess soil in one direction when leveling the ground back and forth, thus preventing excess soil from being pushed onto the leveled ground. It is simple to operate and highly practical.
[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a front view structural diagram of a road surface leveling device proposed in this utility model;
[0017] Figure 2This is a schematic diagram of the left side of a road surface leveling device proposed in this utility model.
[0018] Figure 3 This is a top view schematic diagram of the leveling structure in a road surface leveling device proposed in this utility model.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Base plate; 2. Mounting plate; 3. Push plate; 4. Shovel; 5. Threaded rod; 6. Internally threaded pipe; 7. Bearing; 8. Driven gear; 9. First flattening roller; 10. Compactor plate; 11. Vibrator; 12. Second flattening roller; 13. Inclined plate; 14. Push rod; 15. Storage box; 16. Cushion; 17. Motor; 18. Drive gear; 19. Connecting rod; 20. Transmission gear. Detailed Implementation
[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described in more detail below by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] Please see Figure 1-3In this embodiment of the present invention, a road surface leveling device includes a base plate 1. Two inclined plates 13 are fixedly connected to one end of the top of the base plate 1. A push rod 14 is fixedly connected between the upper ends of the two inclined plates 13. The surface of the push rod 14 is provided with anti-slip texture. An installation plate 2 is fixedly connected to the bottom of the base plate 1. A push plate 3 is connected to the side wall of the installation plate 2 through an adjustment structure. A shovel 4 is fixedly connected to the side wall of the push plate 3. A first flattening roller 9 is rotatably connected to the bottom of the base plate 1. A vibrator 11 is fixedly connected to the bottom of the base plate 1. A compaction plate 10 is provided at the bottom of the vibrator 11. A second flattening roller 12 is rotatably connected to the bottom of the base plate 1. The vibrator 11 is located between the first flattening roller 9 and the second flattening roller 12.
[0025] Please see Figure 1-3 The adjustment structure includes two internally threaded tubes 6. The outer ring sidewalls of both internally threaded tubes 6 are rotatably connected to the mounting plate 2 via bearings 7. Each of the two internally threaded tubes 6 has a threaded rod 5 threadedly connected to it. Both threaded rods 5 are made of stainless steel and are located at different positions within the internally threaded tubes 6. One end of each threaded rod 5 is rotatably connected to the sidewall of the push plate 3. A driven gear 8 is fixedly connected to the outer ring sidewall of each of the two internally threaded tubes 6. A motor 17 is fixedly connected to the sidewall of the mounting plate 2. One end of the output shaft of the motor 17 is fixedly connected to a driving gear 18, which meshes with one of the driven gears 8. A connecting rod 19 is rotatably connected to the sidewall of the mounting plate 2. One end of the connecting rod 19 is fixedly connected to a transmission gear 20, which meshes with the driving gear 18. It meshes with another driven gear 8. By starting the motor 17, the output shaft of the motor 17 drives the driving gear 18 to rotate. The driving gear 18 drives one of the driven gears 8 to rotate. The driving gear 18 drives the other driven gear 8 to rotate simultaneously through the transmission gear 20. At this time, the two driven gears 8 are in a state of opposite rotation, causing the two internal threaded tubes 6 to rotate in opposite directions, thereby driving the two threaded rods 5 to move, so that one threaded rod 5 moves forward and the other moves backward. There is a certain gap between the two threaded rods 5 and the push plate 3, so that the two threaded rods 5 can drive the push plate 3 to rotate at any angle, thereby changing the angle between the push plate 3 and the blade 4. When the device is leveling the ground back and forth, the excess soil is always pushed in one direction, so as not to push the excess soil onto the leveled ground.
[0026] Please see Figure 1-2 A storage box 15 is fixedly connected to the top of the base plate 1, which makes it convenient for staff to place their personal belongings.
[0027] Please see Figure 1-2 The top of the base plate 1 is equipped with a cushion 16, which allows staff to sit on the top of the cushion 16 to rest.
[0028] The working principle of this utility model is as follows: The equipment is moved to the road surface requiring leveling. Pushing the push rod 14 moves the device, and the scraper 4 removes protruding soil. The push plate 3 then pushes the soil to one side. Because the two threaded rods 5 are positioned differently within the two internal threaded tubes 6, the push plate 3 is tilted, thus pushing excess soil to one side. The first flattening roller 9 then performs initial leveling. The vibrator 11 drives the compaction plate 10 to vibrate, compacting the ground. Finally, the second flattening roller 12 performs secondary leveling. The motor 17 is started, and its output shaft drives the drive gear 18 to rotate. The driving gear 18 drives one of the driven gears 8 to rotate. The driving gear 18 drives the other driven gear 8 to rotate simultaneously through the transmission gear 20. At this time, the two driven gears 8 rotate in opposite directions, causing the two internal threaded tubes 6 to rotate in opposite directions, thereby driving the two threaded rods 5 to move. The two threaded rods 5 move forward and backward respectively. There is a certain gap between the two threaded rods 5 and the push plate 3, so that the two threaded rods 5 can drive the push plate 3 to rotate at any angle, thereby changing the angle between the push plate 3 and the blade 4. When the device is leveling the ground back and forth, the excess soil is always pushed in one direction, so as not to push the excess soil onto the leveled ground.
[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A levelling device for a road surface, comprising a base plate (1), characterised in that, The bottom plate (1) top one end is fixedly connected with two inclined plates (13), two the inclined plates (13) upper ends are fixedly connected with push rod (14), the bottom plate (1) bottom is fixedly connected with mounting plate (2), the mounting plate (2) side wall is connected with push plate (3) through adjusting structure, the push plate (3) side wall is fixedly connected with spade (4), the bottom plate (1) bottom is rotatably connected with first flattening roller (9), the bottom plate (1) bottom is fixedly connected with vibrator (11), the vibrator (11) bottom is equipped with rammer plate (10), the bottom plate (1) bottom is rotatably connected with second flattening roller (12), the vibrator (11) is located between first flattening roller (9) and second flattening roller (12).
2. A finishing machine for a highway pavement as defined in claim 1 wherein, The adjusting structure includes two inner threaded tubes (6), two the inner threaded tubes (6) outer circle side walls are rotatably connected in mounting plate (2) through bearing (7), two the inner threaded tubes (6) are all screwedly connected with threaded rod (5), two the threaded rod (5) are located in the different positions in inner threaded tube (6), two the threaded rod (5) one end are rotatably connected on the side wall of push plate (3), two the inner threaded tubes (6) outer circle side walls are fixedly connected with driven gear (8), the mounting plate (2) side wall is fixedly connected with motor (17), the output shaft one end of motor (17) is fixedly connected with driving gear (18), the driving gear (18) is meshedly connected with one of driven gear (8), the mounting plate (2) side wall is rotatably connected with connecting rod (19), the connecting rod (19) one end is fixedly connected with transmission gear (20), the transmission gear (20) is meshedly connected with driving gear (18), the transmission gear (20) is meshedly connected with another driven gear (8).
3. A finishing machine for a highway pavement as defined in claim 2 wherein, Two the threaded rod (5) are all set with stainless steel material.
4. The screeding device for a highway pavement according to claim 1, wherein The bottom plate (1) top is fixedly connected with storage box (15).
5. The finishing machine for a highway pavement as defined in claim 1 wherein, The bottom plate (1) top is equipped with cushion (16).
6. The finishing machine for a highway pavement as defined in claim 1 wherein, The push rod (14) surface is equipped with antiskid line.
Citation Information
Patent Citations
Asphalt pavement leveling device for highway engineering
CN214497090U