Highway construction asphalt flattening device convenient to adjust
By combining hydraulic and electric telescopic rods with a curling plate for protection, the problem of trowel failure due to asphalt splatter and poor leveling is solved, achieving stable lifting and efficient adjustment, thus improving construction efficiency and safety.
Patent Information
- Application Number
- CN202520292526.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
In existing technologies, the lifting function of the screed plate fails and the leveling effect is poor due to the adhesion of asphalt splatter during asphalt paving.
The screed is raised and lowered using a hydraulic rod, combined with an electric telescopic rod and anti-slip plate design to ensure the stability of the screed's position; at the same time, the rolled plate blocks asphalt splatter and prevents it from entering the lifting equipment.
It achieves stable lifting and efficient adjustment of the troweling board, avoiding asphalt splatter from affecting equipment operation and improving construction efficiency and safety.
Smart Images

Figure CN223780682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction, specifically a conveniently adjustable asphalt leveling device for highway construction. Background Technology
[0002] When laying asphalt on a highway, the asphalt needs to be spread out using a paver. At this time, the thickness of the asphalt concrete layer is first controlled by the front baffle to form a smooth surface, which helps with subsequent compaction and leveling. The trowel plate set behind the baffle can further level and smooth the road surface, eliminating unevenness or excess material, thus making the road surface smoother.
[0003] Currently, when smoothing road surfaces using a screed, the height of the screed is typically controlled by a telescopic arm and bolts and nuts. However, if asphalt splatter lands on the telescopic arm or bolts during asphalt laying, the screed's lifting and lowering function will malfunction, preventing the screed from working effectively. Furthermore, if there is a significant amount of asphalt splatter above the screed, leveling with a spirit level will be difficult because the spirit level itself cannot be placed horizontally, resulting in poor leveling. Therefore, this paper proposes a conveniently adjustable asphalt paving device for highway construction to address these issues. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and avoid the problem of asphalt splatter adhering to the lifting equipment and causing the screed board to be unable to rise and fall normally, this utility model proposes a road construction asphalt screeding device that is easy to adjust.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a road construction asphalt leveling device that is easy to adjust, including an equipment support plate, a hopper fixedly connected to the right side of the equipment support plate, a lifting component set at the top of the left side of the equipment support plate, a smearing plate set on the left side of the lifting component, a level fixedly connected to the top of the smearing plate, a stabilizing component set inside the lifting component, and a protective component set inside the lifting component.
[0006] The lifting assembly includes a mounting block fixedly installed on the top left side of the equipment support plate. The mounting block has an inner cavity, and hydraulic rods are fixedly connected to both the front and rear sides of the inner cavity. The output ends of the two hydraulic rods are fixedly connected to connecting rods, and a connecting rod is fixedly connected between the output ends of the hydraulic rods. A connecting plate is fixedly connected to the end of the connecting rod away from the hydraulic rod, and a support rod is fixedly connected to the end of the connecting plate away from the connecting rod. The smearing plate is fixedly installed on the end of the support rod away from the connecting plate.
[0007] Preferably, the top view cross-section of the inner cavity is concave, and the inner cavity extends through the left end face of the front and rear sides of the mounting block and communicates with the outside.
[0008] Preferably, the connecting rod extends to the outside of the inner cavity, and there are two support rods that are symmetrically fixed on the front and rear sides of the left end face of the connecting plate. The height of the squeegee can be adjusted by controlling the hydraulic rod to drive the connecting rod to rise and fall.
[0009] Preferably, the stabilizing component includes an electric telescopic rod fixedly installed at the center of the right end face of the trowel, with an anti-slip plate fixedly connected to the right end of the electric telescopic rod, and a vertical groove provided in the middle of the left end face of the mounting block.
[0010] Preferably, the connecting plate has a channel in the middle of its left and right directions that is compatible with the electric telescopic rod. The electric telescopic rod extends through the channel into the interior of the vertical groove. The anti-slip plate is compatible with and contacts the vertical groove. After the height of the squeegee is adjusted, the electric telescopic rod can be driven to engage the anti-slip plate inside the vertical groove. Thus, the electric telescopic rod and the anti-slip plate mutually limit the squeegee and the mounting block, thereby stabilizing the current position of the squeegee.
[0011] Preferably, the protective component includes a fixing rod fixedly installed on the inner wall of the upper and lower ends of the inner cavity, a curling plate is provided in the direction of the inner cavity facing the outside of the mounting block, the inner surfaces of the two ends of the curling plate are provided with sliding grooves, and a lower baffle is fixedly connected to the bottom of the left end face of the mounting block.
[0012] Preferably, the surface of the curling plate is provided with a through hole that is compatible with the connecting rod. The curling plate is slidably connected to the surface of the fixed rod through a groove. When the connecting rod is raised or lowered, it will push the curling plate to move and curl through the through hole, so that the curling plate always blocks the part of the inner cavity that passes through the mounting block, thus preventing external asphalt splashes from splashing into the inner cavity.
[0013] The advantages of this utility model are:
[0014] This utility model controls the lifting and lowering of the screed by two hydraulic rods, eliminating the need for manual operation in the asphalt paving environment. This not only improves adjustment efficiency but also enhances safety. Furthermore, a level is installed inside the top of the screed, eliminating the need for external inspection of the screed when leveling it. This prevents the screed from being difficult to level due to asphalt splatter adhering to its surface.
[0015] In addition, a curling plate is installed in the inner cavity facing the outside of the mounting block to block asphalt splashes and prevent them from splashing into the inner cavity and adhering to the equipment that controls the lifting. This ensures the stable operation of the trowel plate lifting. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the installation structure of the trowel plate of this utility model;
[0019] Figure 3 This is a schematic diagram of the rear cross-sectional structure of the mounting block of this utility model;
[0020] Figure 4 This is a top sectional view of the mounting block of this utility model;
[0021] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A;
[0022] Figure 6 This is a schematic diagram of the structure of the stabilizing component of this utility model.
[0023] In the diagram: 1. Equipment support plate; 2. Feed hopper; 3. Lifting assembly; 31. Mounting block; 32. Inner cavity; 33. Hydraulic rod; 34. Connecting rod; 35. Connecting rod; 36. Connecting plate; 37. Support rod; 41. Smoothing plate; 42. Level; 5. Stabilizing assembly; 51. Electric telescopic rod; 52. Anti-slip plate; 53. Vertical groove; 6. Protective assembly; 61. Fixing rod; 62. Curved plate; 63. Slide groove; 64. Lower baffle. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0026] This application discloses an easily adjustable asphalt leveling device for highway construction. (Refer to...) Figure 1A conveniently adjustable asphalt leveling device for highway construction includes an equipment support plate 1, a hopper 2 fixedly connected to the right side of the equipment support plate 1, a lifting component 3 set at the top of the left side of the equipment support plate 1, a smearing plate 41 set at the left side of the lifting component 3, a level 42 fixedly connected to the top of the smearing plate 41, a stabilizing component 5 set inside the lifting component 3, and a protective component 6 set inside the lifting component 3.
[0027] Reference Figures 1-4 The lifting assembly 3 includes a mounting block 31 fixedly installed on the top left side of the equipment support plate 1. The mounting block 31 has an inner cavity 32 inside, and the top view cross-section of the inner cavity 32 is concave. The inner cavity 32 passes through the left end face of the front and rear sides of the mounting block 31 and communicates with the outside. Hydraulic rods 33 are fixedly connected to the front and rear sides of the inner cavity 32. The output ends of the two hydraulic rods 33 are fixedly connected to connecting rods 34. Connecting rods 35 are fixedly connected between the output ends of the hydraulic rods 33. Connecting plate 36 is fixedly connected to the end of the connecting rod 34 away from the hydraulic rod 33. Support rod 37 is fixedly connected to the end of the connecting plate 36 away from the connecting rod 34. The squeegee 41 is fixedly installed on the end of the support rod 37 away from the connecting plate 36. The connecting rod 34 extends to the outside of the inner cavity 32. There are two support rods 37, which are symmetrically fixed on the front and rear sides of the left end face of the connecting plate 36. The height of the squeegee 41 can be adjusted by controlling the lifting and lowering of the connecting rod 34 driven by the hydraulic rods 33, thereby driving the lifting and lowering of the squeegee 41.
[0028] Reference Figure 3 , Figure 4 and Figure 6 The stabilizing component 5 includes an electric telescopic rod 51 fixedly installed at the center of the right end face of the squeegee 41. An anti-slip plate 52 is fixedly connected to the right end of the electric telescopic rod 51. A vertical groove 53 is provided in the middle of the left end face of the mounting block 31. A channel adapted to the electric telescopic rod 51 is provided in the middle of the left and right directions of the connecting plate 36. The electric telescopic rod 51 extends through the channel into the interior of the vertical groove 53. The anti-slip plate 52 is adapted to and contacts the vertical groove 53. After the height of the squeegee 41 is adjusted, the electric telescopic rod 51 can be driven to drive the anti-slip plate 52 to engage in the interior of the vertical groove 53. Thus, the electric telescopic rod 51 and the anti-slip plate 52 mutually limit the squeegee 41 and the mounting block 31, thereby stabilizing the current position of the squeegee 41.
[0029] Reference Figure 3 and Figure 5The protective component 6 includes a fixed rod 61 fixedly installed on the inner walls of the upper and lower ends of the inner cavity 32. A curling plate 62 is provided in the direction of the inner cavity 32 facing the outside of the mounting block 31. The inner surfaces of the curling plate 62 are provided with grooves 63. A lower baffle 64 is fixedly connected to the bottom of the left end face of the mounting block 31. The surface of the curling plate 62 is provided with a through hole that is compatible with the connecting rod 34. The curling plate 62 is slidably connected to the surface of the fixed rod 61 through the grooves 63. When the connecting rod 34 is raised or lowered, it will push the curling plate 62 to move and curl through the through hole, so that the curling plate 62 always blocks the part of the inner cavity 32 that passes through the mounting block 31, preventing external asphalt splashes from splashing into the interior of the inner cavity 32.
[0030] Working principle: The operator can directly observe the level 42 inside the top of the squeegee 41 to check the current tilt of the squeegee 41 and thus check whether the squeegee 41 is currently level.
[0031] When adjusting the height of the squeegee 41, the hydraulic rod 33 is driven to move the connecting rod 34 vertically. At this time, the connecting rod 34 will move the squeegee 41 vertically through the connecting plate 36 and the support rod 37. When the squeegee 41 is raised to the appropriate position, the electric telescopic rod 51 can be extended, so that the electric telescopic rod 51 moves the anti-slip plate 52 and abuts against the inner wall of the vertical groove 53. At this time, the anti-slip plate 52 and the vertical groove 53 limit each other, thereby stabilizing the level 42 and further limiting the position of the level 42.
[0032] During the lifting and lowering of the connecting rod 34, the connecting rod 34 pushes the curling plate 62 through the through hole. At this time, the side of the curling plate 62 facing the inside of the inner cavity 32 slides on the surface of the fixed rod 61 through the slide groove 63. The curling plate 62 always blocks the part of the inner cavity 32 that passes through the mounting block 31, thereby blocking this part and preventing external asphalt splashes from splashing into the inside of the inner cavity 32. This prevents asphalt splashes from adhering to the surface of the hydraulic rod 33, allowing the hydraulic rod 33 to operate stably, thus ensuring that the smearing plate 41 can be lifted and lowered stably.
[0033] 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 claimed utility model.
Claims
1. A conveniently adjustable asphalt leveling device for highway construction, characterized in that: The equipment includes a support plate (1), a hopper (2) is fixedly connected to the right side of the support plate (1), a lifting assembly (3) is provided on the top left side of the support plate (1), a smearing plate (41) is provided on the left side of the lifting assembly (3), a level (42) is fixedly connected to the top of the smearing plate (41), a stabilizing assembly (5) is provided inside the lifting assembly (3), and a protective assembly (6) is provided inside the lifting assembly (3). The lifting assembly (3) includes a mounting block (31) fixedly installed on the top left side of the equipment support plate (1). The mounting block (31) has an inner cavity (32) inside. Hydraulic rods (33) are fixedly connected to both the front and rear sides of the inner cavity (32). A connecting rod (34) is fixedly connected to the output end of the surface of the two hydraulic rods (33). A connecting rod (35) is fixedly connected between the output ends of the hydraulic rods (33). A connecting plate (36) is fixedly connected to the end of the connecting rod (34) away from the hydraulic rod (33). A support rod (37) is fixedly connected to the end of the connecting plate (36) away from the connecting rod (34). The smearing plate (41) is fixedly installed on the end of the support rod (37) away from the connecting plate (36).
2. The road construction asphalt leveling device that is easy to adjust according to claim 1, characterized in that: The top view cross-section of the inner cavity (32) is concave, and the inner cavity (32) passes through the left end face of the front and rear sides of the mounting block (31) and communicates with the outside.
3. The road construction asphalt leveling device that is easy to adjust according to claim 1, characterized in that: The connecting rod (34) extends to the outside of the inner cavity (32), and there are two support rods (37) that are symmetrically fixed on the front and rear sides of the left end face of the connecting plate (36).
4. The road construction asphalt leveling device that is easy to adjust according to claim 1, characterized in that: The stabilizing component (5) includes an electric telescopic rod (51) fixedly installed at the center of the right end face of the trowel (41), with an anti-slip plate (52) fixedly connected to the right end of the electric telescopic rod (51), and a vertical groove (53) is provided in the middle of the left end face of the mounting block (31).
5. The road construction asphalt leveling device that is easy to adjust according to claim 4, characterized in that: The connecting plate (36) has a channel in the middle of the left and right directions that is compatible with the electric telescopic rod (51). The electric telescopic rod (51) extends through the channel into the interior of the vertical groove (53). The anti-slip plate (52) is compatible with and in contact with the vertical groove (53).
6. The road construction asphalt leveling device that is easy to adjust according to claim 1, characterized in that: The protective component (6) includes a fixed rod (61) fixedly installed on the inner walls of the upper and lower ends of the inner cavity (32). The inner cavity (32) is provided with a curling plate (62) facing the outside of the mounting block (31). The inner surfaces of the two ends of the curling plate (62) are provided with grooves (63). The bottom of the left end face of the mounting block (31) is fixedly connected to a lower baffle (64).
7. The road construction asphalt leveling device that is easy to adjust according to claim 6, characterized in that: The surface of the curling plate (62) is provided with a through hole that is compatible with and engages with the connecting rod (34). The curling plate (62) is slidably connected to the surface of the fixed rod (61) through the sliding groove (63).