Building asphalt laying and flattening device

The design of structures such as limit plates and guide plates enables stable installation and convenient replacement of the cutting wheel, solving the problem of frequent cutting disc replacement and improving the construction efficiency of the road roller and the smoothness of asphalt paving.

CN223963794UActive Publication Date: 2026-03-03JINCHENG SHENGTONG HIGHWAY ENGINEERING CO LTD
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Patent Information

Application Number
CN202520383067.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The existing method of installing cutting discs results in low efficiency of road rollers, and the cutting discs need to be replaced frequently due to high temperature contact with asphalt, which affects construction efficiency.

Method used

It adopts a structure including a limiting plate, a guide plate, a limiting cylinder, and a locking block. The position of the cutting wheel is adjusted by an electric push rod. The guide groove and threaded connection enable stable installation and convenient replacement of the cutting wheel, avoiding asphalt adhesion.

Benefits of technology

It improves the efficiency of road rollers, reduces the replacement time of cutting discs, ensures smooth asphalt cutting, and enhances construction efficiency and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a building asphalt laying and flattening device, and relates to the field of flattening devices. Through the arrangement of the limiting rod, the cutting wheel, the limiting plate, the limiting strip, the limiting plate, the guide groove, the locking block, the driving block and the limiting cylinder, it is ensured that a user drives the locking block to rotate, and meanwhile the limiting plate limits the cutting wheel; a user can better limit the position of a limiting plate through rotation of a locking block through threads in a limiting barrel and threads at the end of a limiting rod, meanwhile, sliding of the limiting plate is not affected after the user makes contact with limitation of the cutting wheel through sliding of the limiting barrel, and meanwhile the cutting wheel is more stable through guiding of a guiding plate. And asphalt cut by the cutting wheel is separated, the situation that the asphalt adheres again due to too high temperature in the later period is avoided, and meanwhile, when a user adjusts the position of the cutting wheel through an electric push rod, through guiding of a guiding groove, the cutting wheel adjusts the position of a limiting plate while driving the position of the limiting plate.
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Description

Technical Field

[0001] This utility model relates to the field of flattening devices, specifically a flattening device for building asphalt paving. Background Technology

[0002] Asphalt paving can achieve a very smooth surface, minimizing the bumps when vehicles drive on it and providing a stable and comfortable driving experience. It greatly reduces wear and tear on vehicle parts and minimizes damage to goods during transportation. Properly designed and constructed asphalt pavements have good roughness, providing sufficient friction for vehicle tires, especially in adverse conditions such as wet or rainy weather, effectively preventing vehicles from slipping and ensuring driving safety.

[0003] In the process of asphalt paving, the road roller plays a key role. Through the vibration device, the steel wheel generates high-frequency vibration. When compacting the asphalt mixture, the vibration energy can squeeze and fill the aggregate particles together, quickly expelling air from the mixture, greatly improving compaction efficiency and density. It is suitable for the secondary compaction stage, especially for thick asphalt mixtures. The compaction speed should be reasonably controlled according to factors such as the type of asphalt mixture, temperature, thickness, and type of road roller. Too fast a speed may lead to insufficient compaction, while too slow a speed will affect construction efficiency and may also cause over-compaction of the mixture, resulting in problems such as shoving and shoveling.

[0004] To ensure the smoothness of the road surface sides after compaction, a small cutting disc is installed on the side while the road roller is working. This allows the roller to cut uneven asphalt edges simultaneously, avoiding the need for re-trimming the road after the asphalt has hardened. This improves the efficiency of asphalt paving. The cutting disc's position is adjusted via an electric push rod, allowing it to better conform to the asphalt. However, existing cutting discs require periodic replacement to ensure a smooth cut due to prolonged contact with the high-temperature asphalt. The current installation method uses multiple screws to secure the cutting disc, which is time-consuming and reduces the efficiency of the road roller. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a building asphalt paving and compaction device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a building asphalt paving and flattening device, comprising an asphalt flattening device and an electric push rod, a limiting rod fixedly installed on the outer wall of the electric push rod, and a cutting wheel sleeved on the outer wall of the limiting rod; a limiting plate fixedly installed on the outer wall of the asphalt flattening device, and a limiting strip fixedly installed at the end of the limiting plate; a limiting plate slidably installed on the outer wall of the limiting strip; a guide plate fixedly installed on the outer wall of the limiting plate, and a guide groove corresponding to the limiting strip inside the limiting plate; when guided by the guide groove, the limiting plate begins to slide on the outer wall of the limiting strip; a limiting cylinder slidably installed inside the limiting plate, and a locking block fixedly installed at the end of the limiting cylinder; and a driving block fixedly installed on the outer wall of the locking block; the driving block rotates the locking block, causing the limiting cylinder to start rotating at the end of the cutting wheel.

[0007] By adopting the above technical solution, it is ensured that the user can drive the rotation of the locking block, while the limiting plate restricts the cutting wheel. The threads inside the limiting cylinder and the threads at the end of the limiting rod allow the user to better restrict the position of the limiting plate by rotating the locking block. At the same time, the sliding of the limiting cylinder ensures that the user can release the restriction on the cutting wheel without affecting the sliding of the limiting plate. Furthermore, the guide plate guides the asphalt cut by the cutting wheel to separate, preventing the asphalt from re-adheding due to excessive temperature later. When the user adjusts the position of the cutting wheel using the electric push rod, the guide groove guides the cutting wheel to adjust the position of the limiting plate at the same time, which can better separate the asphalt cut by the cutting wheel, further improving the practicality of the device.

[0008] Furthermore, two sets of limiting plates are symmetrically arranged on the outer wall of the asphalt flattening device, and the cross-section of the limiting plates is designed in an L-shape.

[0009] By adopting the above technical solution, it is ensured that the limiting plate will not move on the outer wall of the asphalt flattening device under the restriction of the limiting plate.

[0010] Furthermore, the guide plate is located on the outer wall of the limiting plate near the cutting wheel, and the guide plate has a circular arc-shaped cross-section.

[0011] By adopting the above technical solution, it is ensured that the guide plate can smoothly separate the asphalt after it has been cut by the cutting wheel.

[0012] Furthermore, the outer wall of the guide plate and the outer wall of the cutting wheel are located on the same horizontal plane, and the guide plate is located behind the asphalt flattening device in the forward direction.

[0013] By adopting the above technical solution, it is ensured that the guide plate can be moved smoothly between the cut asphalt.

[0014] Furthermore, the drive block is provided with multiple sets at equal angles on the outer wall of the locking block, and the end of the limiting rod near the cutting wheel is provided with an external thread.

[0015] By adopting the above technical solution, the rotation of the locking block is ensured, which smoothly drives the limiting cylinder to engage with the cutting wheel.

[0016] Furthermore, the limiting cylinder has a T-shaped cross-section and an internal thread corresponding to the limiting rod inside.

[0017] By adopting the above technical solution, it is ensured that the limiting cylinder can smoothly fit with the cutting wheel.

[0018] Furthermore, the limiting cylinder penetrates the limiting plate, and the end of the limiting rod is located on the same horizontal plane as the outer wall of the limiting plate.

[0019] By adopting the above technical solution, it is ensured that the limiting plate will not be affected by the cutting wheel while sliding on the outer wall of the asphalt flattening device.

[0020] Furthermore, the guide plate is inclined near the outer wall of the cutting wheel, and the guide groove is inclined at the end away from the locking block.

[0021] By adopting the above technical solution, the fit between the guide plate and the limiting strip is made smoother, while the guide groove is prevented from affecting the cutting wheel's cutting of asphalt.

[0022] This invention features a limiting rod, a cutting wheel, a limiting plate, a limiting strip, a locating plate, a guide groove, a locking block, a driving block, and a limiting cylinder. The user can drive the locking block to rotate, while the locating plate restricts the cutting wheel. The threads inside the limiting cylinder and the threads at the end of the limiting rod allow the user to better control the position of the locating plate by rotating the locking block. The sliding of the limiting cylinder ensures that the user's contact with the cutting wheel does not affect the sliding of the locating plate. The guide plate guides the asphalt cut by the cutting wheel to separate, preventing the asphalt from re-adheding later due to excessive temperature. Furthermore, when the user adjusts the position of the cutting wheel using an electric push rod, the guide groove simultaneously adjusts the position of the locating plate, further enhancing the separation of the asphalt cut by the cutting wheel and improving the device's practicality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the cutting wheel, limiting plate, locating plate, guide plate, guide groove, locking block, and driving block of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the electric push rod, cutting wheel, limiting plate, positioning plate and guide plate of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the limiting rod, cutting wheel, limiting plate, and limiting strip of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the limiting plate, guide plate, guide groove, locking block, and limiting cylinder of this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the locking block, driving block, and limiting cylinder of this utility model.

[0029] In the diagram: 1. Asphalt compaction device; 2. Electric push rod; 21. Limiting rod; 3. Cutting wheel; 4. Limiting plate; 41. Limiting strip; 5. Limiting plate; 51. Guide plate; 52. Guide groove; 6. Locking block; 61. Drive block; 62. Limiting cylinder. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] A building asphalt paving and leveling device, such as Figure 1 - Figure 6 As shown, the device includes an asphalt flattening device 1 and an electric push rod 2. A limiting rod 21 is fixedly installed on the outer wall of the electric push rod 2, and a cutting wheel 3 is sleeved on the outer wall of the limiting rod 21. A limiting plate 4 is fixedly installed on the outer wall of the asphalt flattening device 1, and a limiting strip 41 is fixedly installed at the end of the limiting plate 4. A limiting plate 5 is slidably installed on the outer wall of the limiting strip 41. A guide plate 51 is fixedly installed on the outer wall of the limiting plate 5, and a guide groove 52 corresponding to the limiting strip 41 is formed in the limiting plate 5. When guided by the guide groove 52, the limiting plate 5 begins to slide on the outer wall of the limiting strip 41. A limiting cylinder 62 is slidably installed in the limiting plate 5, and a locking block 6 is fixedly installed at the end of the limiting cylinder 62. A driving block 61 is fixedly installed on the outer wall of the locking block 6. The driving block 61 rotates the locking block 6, causing the limiting cylinder 62 to start rotating at the end of the cutting wheel 3.

[0033] Please see Figure 2 - Figure 4 Two sets of limiting plates 4 are symmetrically arranged on the outer wall of the asphalt flattening device 1, and the cross-section of the limiting plate 4 is designed in an L-shape. By limiting the limiting plate 4, the limiting plate 5 remains stable on the outer wall of the asphalt flattening device 1, ensuring that the limiting plate 5 will not move on the outer wall of the asphalt flattening device 1 under the restriction of the limiting plate 4.

[0034] Please see Figure 1- Figure 5 The guide plate 51 is located near the outer wall of the limiting plate 5 and the cutting wheel 3. The cross-section of the guide plate 51 is designed with an arc shape. With the guidance of the guide plate 51, the asphalt cut by the cutting wheel 3 is successfully separated, ensuring that the guide plate 51 can successfully separate the asphalt after the cutting wheel 3 has cut it.

[0035] Please see Figure 1 - Figure 5 The outer wall of the guide plate 51 and the outer wall of the cutting wheel 3 are on the same horizontal plane, and the guide plate 51 is located behind the asphalt flattening device 1 in the forward direction. The asphalt flattening device 1 moves forward, the cutting wheel 3 cuts the asphalt, and then the guide plate 51 separates the cut asphalt to ensure that the guide plate 51 can move smoothly between the cut asphalt.

[0036] Please see Figure 3 - Figure 6 Multiple sets of drive blocks 61 are set at the same angle on the outer wall of the locking block 6. The locking block 6 is smoothly driven to rotate by multiple sets of drive blocks 61. The end of the limiting rod 21 near the cutting wheel 3 is provided with an external thread. When the limiting cylinder 62 rotates, the threads at the end of the limiting cylinder 62 and the cutting wheel 3 are engaged with each other, ensuring that the rotation of the locking block 6 smoothly drives the limiting cylinder 62 to engage with the cutting wheel 3.

[0037] Please see Figure 6 The limiting cylinder 62 has a T-shaped cross-section and an internal thread corresponding to the limiting rod 21. The locking block 6 rotates and drives the limiting cylinder 62 to slide within the limiting plate 5, ensuring that the limiting cylinder 62 can smoothly engage with the cutting wheel 3.

[0038] Please see Figure 5 and Figure 6 The limiting cylinder 62 penetrates the limiting plate 5, and the end of the limiting rod 21 is on the same horizontal plane as the outer wall of the limiting plate 5, ensuring that the limiting plate 5 is not affected by the cutting wheel 3 while sliding on the outer wall of the asphalt flattening device 1.

[0039] Please see Figure 2 - Figure 5 The guide plate 51 is inclined near the outer wall of the cutting wheel 3, and the guide groove 52 is inclined away from the end of the locking block 6. The limiting plate 5 fits into the limiting strip 41 through the guide plate 51, ensuring that the fit between the guide plate 51 and the limiting strip 41 is smoother, while avoiding the guide groove 52 from affecting the cutting wheel 3 cutting asphalt.

[0040] The working principle of this utility model is as follows: When the user needs to remove the cutting wheel 3, the user first rotates the locking block 6 through the drive block 61 to drive the limiting cylinder 62 to start rotating at the end of the cutting wheel 3, thereby causing the thread inside the limiting cylinder 62 to gradually separate from the thread at the end of the cutting wheel 3. When the limiting cylinder 62 has completely moved out of the end of the cutting wheel 3, the user can move the limiting plate 5 downward without the limitation of the limiting cylinder 62, and then remove the limiting plate 5. At this time, without the limitation of the limiting plate 5, the user can remove the cutting wheel 3, and thus the cutting wheel 3 can be replaced smoothly.

[0041] When the user needs to install a new cutting wheel 3, the cutting wheel 3 slides smoothly on the outer wall of the limiting rod 21 under the guidance of the limiting rod 21. When the cutting wheel 3 moves to the outer wall of the electric push rod 2, the user can guide the limiting plate 5 to start sliding on the outer wall of the limiting strip 41 through the guide groove 52. When the drive block 61 in the limiting plate 5 is in the same straight line as the limiting rod 21, the user can rotate the locking block 6 to make the internal thread of the limiting cylinder 62 engage with the thread at the end of the limiting rod 21. Then, as the user continues to rotate the locking block 6, the limiting cylinder 62 restricts the cutting wheel 3. At this time, the limiting plate 4 and the locking block 6 keep the limiting plate 5 stable in the asphalt flattening device 1, and the limiting plate 5 keeps the cutting wheel 3 stable on the outer wall of the limiting rod 21.

[0042] When the user needs to adjust the position of the cutting wheel 3 by using the electric push rod 2, the electric push rod 2 is driven to move the limiting rod 21 and the locking block 6 at the end simultaneously. At this time, due to the setting of the guide groove 52, the limiting plate 5 can move within the asphalt flattening device 1, so that the guide plate 51 can better separate the asphalt cut by the cutting wheel 3.

[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A building asphalt laying and flattening device comprising an asphalt flattening device (1) and an electric push rod (2), characterized in that: The electric push rod (2) outer wall is fixedly installed with a limiting rod (21), and the limiting rod (21) outer wall is sleeved with a cutting wheel (3), the asphalt flattening device (1) outer wall is fixedly installed with a limiting plate (4), and the limiting plate (4) end is fixedly installed with a limiting strip (41), and the limiting strip (41) outer wall is slidably installed with a limiting plate (5), the limiting plate (5) outer wall is fixedly installed with a guide plate (51), and the limiting plate (5) is provided with a guide groove (52) corresponding to the limiting strip (41) in the limiting plate (5), the limiting plate (5) is slidably installed with a limiting cylinder (62), and the limiting cylinder (62) end is fixedly installed with a locking block (6), and the locking block (6) outer wall is fixedly installed with a driving block (61).

2. A building pitch laying and flattening device according to claim 1, characterized in that: The limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall of the asphalt flattening device (1), and the limiting plate (4) is provided with two groups on the outer wall 3. A building pitch laying and flattening device according to claim 1, characterized in that: ​ 4. A building pitch laying and flattening device according to claim 1, characterized in that: ​ 5. An asphalt paving and flattening apparatus according to claim 1 wherein: ​ 6. An asphalt paving and flattening apparatus according to claim 1 wherein: ​ 7. An asphalt paving and flattening apparatus according to claim 1 wherein: ​ 8. A building pitch laying and flattening device according to claim 1, characterized in that: ​